From: Rafał Miłecki Date: Sat, 7 Jan 2023 15:59:14 +0000 (+0100) Subject: kernel: backport of changes & helpers X-Git-Tag: v23.05.0-rc1~1344 X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=11759a5bf3c62846ded3d8946322802d41ac8984;p=openwrt%2Fopenwrt.git kernel: backport of changes & helpers This code is required for upcoming NVMEM changes. Signed-off-by: Rafał Miłecki --- diff --git a/target/linux/generic/backport-5.10/732-net-next-1-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch b/target/linux/generic/backport-5.10/732-net-next-1-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch deleted file mode 100644 index 928e1ca0dc..0000000000 --- a/target/linux/generic/backport-5.10/732-net-next-1-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch +++ /dev/null @@ -1,1935 +0,0 @@ -From 83216e3988cd196183542937c9bd58b279f946af Mon Sep 17 00:00:00 2001 -From: Michael Walle -Date: Mon, 12 Apr 2021 19:47:17 +0200 -Subject: of: net: pass the dst buffer to of_get_mac_address() - -of_get_mac_address() returns a "const void*" pointer to a MAC address. -Lately, support to fetch the MAC address by an NVMEM provider was added. -But this will only work with platform devices. It will not work with -PCI devices (e.g. of an integrated root complex) and esp. not with DSA -ports. - -There is an of_* variant of the nvmem binding which works without -devices. The returned data of a nvmem_cell_read() has to be freed after -use. On the other hand the return of_get_mac_address() points to some -static data without a lifetime. The trick for now, was to allocate a -device resource managed buffer which is then returned. This will only -work if we have an actual device. - -Change it, so that the caller of of_get_mac_address() has to supply a -buffer where the MAC address is written to. Unfortunately, this will -touch all drivers which use the of_get_mac_address(). - -Usually the code looks like: - - const char *addr; - addr = of_get_mac_address(np); - if (!IS_ERR(addr)) - ether_addr_copy(ndev->dev_addr, addr); - -This can then be simply rewritten as: - - of_get_mac_address(np, ndev->dev_addr); - -Sometimes is_valid_ether_addr() is used to test the MAC address. -of_get_mac_address() already makes sure, it just returns a valid MAC -address. Thus we can just test its return code. But we have to be -careful if there are still other sources for the MAC address before the -of_get_mac_address(). In this case we have to keep the -is_valid_ether_addr() call. - -The following coccinelle patch was used to convert common cases to the -new style. Afterwards, I've manually gone over the drivers and fixed the -return code variable: either used a new one or if one was already -available use that. Mansour Moufid, thanks for that coccinelle patch! - - -@a@ -identifier x; -expression y, z; -@@ -- x = of_get_mac_address(y); -+ x = of_get_mac_address(y, z); - <... -- ether_addr_copy(z, x); - ...> - -@@ -identifier a.x; -@@ -- if (<+... x ...+>) {} - -@@ -identifier a.x; -@@ - if (<+... x ...+>) { - ... - } -- else {} - -@@ -identifier a.x; -expression e; -@@ -- if (<+... x ...+>@e) -- {} -- else -+ if (!(e)) - {...} - -@@ -expression x, y, z; -@@ -- x = of_get_mac_address(y, z); -+ of_get_mac_address(y, z); - ... when != x - - -All drivers, except drivers/net/ethernet/aeroflex/greth.c, were -compile-time tested. - -Suggested-by: Andrew Lunn -Signed-off-by: Michael Walle -Reviewed-by: Andrew Lunn -Signed-off-by: David S. Miller ---- - arch/arm/mach-mvebu/kirkwood.c | 3 +- - arch/powerpc/sysdev/tsi108_dev.c | 5 +- - drivers/net/ethernet/aeroflex/greth.c | 6 +-- - drivers/net/ethernet/allwinner/sun4i-emac.c | 10 ++-- - drivers/net/ethernet/altera/altera_tse_main.c | 7 +-- - drivers/net/ethernet/arc/emac_main.c | 8 +-- - drivers/net/ethernet/atheros/ag71xx.c | 7 +-- - drivers/net/ethernet/broadcom/bcm4908_enet.c | 7 +-- - drivers/net/ethernet/broadcom/bcmsysport.c | 7 +-- - drivers/net/ethernet/broadcom/bgmac-bcma.c | 10 ++-- - drivers/net/ethernet/broadcom/bgmac-platform.c | 11 ++-- - drivers/net/ethernet/cadence/macb_main.c | 11 ++-- - drivers/net/ethernet/cavium/octeon/octeon_mgmt.c | 8 +-- - drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 5 +- - drivers/net/ethernet/davicom/dm9000.c | 10 ++-- - drivers/net/ethernet/ethoc.c | 6 +-- - drivers/net/ethernet/ezchip/nps_enet.c | 7 +-- - drivers/net/ethernet/freescale/fec_main.c | 7 +-- - drivers/net/ethernet/freescale/fec_mpc52xx.c | 7 +-- - drivers/net/ethernet/freescale/fman/mac.c | 9 ++-- - .../net/ethernet/freescale/fs_enet/fs_enet-main.c | 5 +- - drivers/net/ethernet/freescale/gianfar.c | 8 +-- - drivers/net/ethernet/freescale/ucc_geth.c | 5 +- - drivers/net/ethernet/hisilicon/hisi_femac.c | 7 +-- - drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 7 +-- - drivers/net/ethernet/lantiq_xrx200.c | 7 +-- - drivers/net/ethernet/marvell/mv643xx_eth.c | 5 +- - drivers/net/ethernet/marvell/mvneta.c | 6 +-- - .../net/ethernet/marvell/prestera/prestera_main.c | 11 ++-- - drivers/net/ethernet/marvell/pxa168_eth.c | 9 +--- - drivers/net/ethernet/marvell/sky2.c | 8 ++- - drivers/net/ethernet/mediatek/mtk_eth_soc.c | 11 ++-- - drivers/net/ethernet/micrel/ks8851_common.c | 7 ++- - drivers/net/ethernet/microchip/lan743x_main.c | 5 +- - drivers/net/ethernet/nxp/lpc_eth.c | 4 +- - drivers/net/ethernet/qualcomm/qca_spi.c | 10 ++-- - drivers/net/ethernet/qualcomm/qca_uart.c | 9 +--- - drivers/net/ethernet/renesas/ravb_main.c | 12 +++-- - drivers/net/ethernet/renesas/sh_eth.c | 5 +- - .../net/ethernet/samsung/sxgbe/sxgbe_platform.c | 13 ++--- - drivers/net/ethernet/socionext/sni_ave.c | 10 ++-- - .../net/ethernet/stmicro/stmmac/dwmac-anarion.c | 2 +- - .../ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-generic.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-intel-plat.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-meson8b.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c | 2 +- - .../ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 2 +- - .../net/ethernet/stmicro/stmmac/dwmac-visconti.c | 2 +- - drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 +- - drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- - .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 14 ++--- - .../net/ethernet/stmicro/stmmac/stmmac_platform.h | 2 +- - drivers/net/ethernet/ti/am65-cpsw-nuss.c | 19 ++++--- - drivers/net/ethernet/ti/cpsw.c | 7 +-- - drivers/net/ethernet/ti/cpsw_new.c | 7 +-- - drivers/net/ethernet/ti/davinci_emac.c | 8 +-- - drivers/net/ethernet/ti/netcp_core.c | 7 +-- - drivers/net/ethernet/wiznet/w5100-spi.c | 8 ++- - drivers/net/ethernet/wiznet/w5100.c | 2 +- - drivers/net/ethernet/xilinx/ll_temac_main.c | 8 +-- - drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 15 +++--- - drivers/net/ethernet/xilinx/xilinx_emaclite.c | 8 +-- - drivers/net/wireless/ath/ath9k/init.c | 5 +- - drivers/net/wireless/mediatek/mt76/eeprom.c | 9 +--- - drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 6 +-- - drivers/of/of_net.c | 60 ++++++++++------------ - drivers/staging/octeon/ethernet.c | 10 ++-- - drivers/staging/wfx/main.c | 7 ++- - include/linux/of_net.h | 6 +-- - include/net/dsa.h | 2 +- - net/dsa/dsa2.c | 2 +- - net/dsa/slave.c | 2 +- - net/ethernet/eth.c | 11 ++-- - 85 files changed, 218 insertions(+), 364 deletions(-) - ---- a/arch/arm/mach-mvebu/kirkwood.c -+++ b/arch/arm/mach-mvebu/kirkwood.c -@@ -84,6 +84,7 @@ static void __init kirkwood_dt_eth_fixup - struct device_node *pnp = of_get_parent(np); - struct clk *clk; - struct property *pmac; -+ u8 tmpmac[ETH_ALEN]; - void __iomem *io; - u8 *macaddr; - u32 reg; -@@ -93,7 +94,7 @@ static void __init kirkwood_dt_eth_fixup - - /* skip disabled nodes or nodes with valid MAC address*/ - if (!of_device_is_available(pnp) || -- !IS_ERR(of_get_mac_address(np))) -+ !of_get_mac_address(np, tmpmac)) - goto eth_fixup_skip; - - clk = of_clk_get(pnp, 0); ---- a/arch/powerpc/sysdev/tsi108_dev.c -+++ b/arch/powerpc/sysdev/tsi108_dev.c -@@ -73,7 +73,6 @@ static int __init tsi108_eth_of_init(voi - struct device_node *phy, *mdio; - hw_info tsi_eth_data; - const unsigned int *phy_id; -- const void *mac_addr; - const phandle *ph; - - memset(r, 0, sizeof(r)); -@@ -101,9 +100,7 @@ static int __init tsi108_eth_of_init(voi - goto err; - } - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(tsi_eth_data.mac_addr, mac_addr); -+ of_get_mac_address(np, tsi_eth_data.mac_addr); - - ph = of_get_property(np, "mdio-handle", NULL); - mdio = of_find_node_by_phandle(*ph); ---- a/drivers/net/ethernet/aeroflex/greth.c -+++ b/drivers/net/ethernet/aeroflex/greth.c -@@ -1450,10 +1450,10 @@ static int greth_of_probe(struct platfor - break; - } - if (i == 6) { -- const u8 *addr; -+ u8 addr[ETH_ALEN]; - -- addr = of_get_mac_address(ofdev->dev.of_node); -- if (!IS_ERR(addr)) { -+ err = of_get_mac_address(ofdev->dev.of_node, addr); -+ if (!err) { - for (i = 0; i < 6; i++) - macaddr[i] = (unsigned int) addr[i]; - } else { ---- a/drivers/net/ethernet/allwinner/sun4i-emac.c -+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c -@@ -790,7 +790,6 @@ static int emac_probe(struct platform_de - struct emac_board_info *db; - struct net_device *ndev; - int ret = 0; -- const char *mac_addr; - - ndev = alloc_etherdev(sizeof(struct emac_board_info)); - if (!ndev) { -@@ -853,12 +852,9 @@ static int emac_probe(struct platform_de - } - - /* Read MAC-address from DT */ -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- -- /* Check if the MAC address is valid, if not get a random one */ -- if (!is_valid_ether_addr(ndev->dev_addr)) { -+ ret = of_get_mac_address(np, ndev->dev_addr); -+ if (ret) { -+ /* if the MAC address is invalid get a random one */ - eth_hw_addr_random(ndev); - dev_warn(&pdev->dev, "using random MAC address %pM\n", - ndev->dev_addr); ---- a/drivers/net/ethernet/altera/altera_tse_main.c -+++ b/drivers/net/ethernet/altera/altera_tse_main.c -@@ -1355,7 +1355,6 @@ static int altera_tse_probe(struct platf - struct resource *control_port; - struct resource *dma_res; - struct altera_tse_private *priv; -- const unsigned char *macaddr; - void __iomem *descmap; - const struct of_device_id *of_id = NULL; - -@@ -1532,10 +1531,8 @@ static int altera_tse_probe(struct platf - priv->rx_dma_buf_sz = ALTERA_RXDMABUFFER_SIZE; - - /* get default MAC address from device tree */ -- macaddr = of_get_mac_address(pdev->dev.of_node); -- if (!IS_ERR(macaddr)) -- ether_addr_copy(ndev->dev_addr, macaddr); -- else -+ ret = of_get_mac_address(pdev->dev.of_node, ndev->dev_addr); -+ if (ret) - eth_hw_addr_random(ndev); - - /* get phy addr and create mdio */ ---- a/drivers/net/ethernet/arc/emac_main.c -+++ b/drivers/net/ethernet/arc/emac_main.c -@@ -857,7 +857,6 @@ int arc_emac_probe(struct net_device *nd - struct device_node *phy_node; - struct phy_device *phydev = NULL; - struct arc_emac_priv *priv; -- const char *mac_addr; - unsigned int id, clock_frequency, irq; - int err; - -@@ -942,11 +941,8 @@ int arc_emac_probe(struct net_device *nd - } - - /* Get MAC address from device tree */ -- mac_addr = of_get_mac_address(dev->of_node); -- -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- else -+ err = of_get_mac_address(dev->of_node, ndev->dev_addr); -+ if (err) - eth_hw_addr_random(ndev); - - arc_emac_set_address_internal(ndev); ---- a/drivers/net/ethernet/atheros/ag71xx.c -+++ b/drivers/net/ethernet/atheros/ag71xx.c -@@ -1857,7 +1857,6 @@ static int ag71xx_probe(struct platform_ - const struct ag71xx_dcfg *dcfg; - struct net_device *ndev; - struct resource *res; -- const void *mac_addr; - int tx_size, err, i; - struct ag71xx *ag; - -@@ -1953,10 +1952,8 @@ static int ag71xx_probe(struct platform_ - ag->stop_desc->ctrl = 0; - ag->stop_desc->next = (u32)ag->stop_desc_dma; - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- memcpy(ndev->dev_addr, mac_addr, ETH_ALEN); -- if (IS_ERR(mac_addr) || !is_valid_ether_addr(ndev->dev_addr)) { -+ err = of_get_mac_address(np, ndev->dev_addr); -+ if (err) { - netif_err(ag, probe, ndev, "invalid MAC address, using random address\n"); - eth_random_addr(ndev->dev_addr); - } ---- a/drivers/net/ethernet/broadcom/bcmsysport.c -+++ b/drivers/net/ethernet/broadcom/bcmsysport.c -@@ -2468,7 +2468,6 @@ static int bcm_sysport_probe(struct plat - struct bcm_sysport_priv *priv; - struct device_node *dn; - struct net_device *dev; -- const void *macaddr; - u32 txq, rxq; - int ret; - -@@ -2563,12 +2562,10 @@ static int bcm_sysport_probe(struct plat - } - - /* Initialize netdevice members */ -- macaddr = of_get_mac_address(dn); -- if (IS_ERR(macaddr)) { -+ ret = of_get_mac_address(dn, dev->dev_addr); -+ if (ret) { - dev_warn(&pdev->dev, "using random Ethernet MAC\n"); - eth_hw_addr_random(dev); -- } else { -- ether_addr_copy(dev->dev_addr, macaddr); - } - - SET_NETDEV_DEV(dev, &pdev->dev); ---- a/drivers/net/ethernet/broadcom/bgmac-bcma.c -+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c -@@ -115,7 +115,7 @@ static int bgmac_probe(struct bcma_devic - struct ssb_sprom *sprom = &core->bus->sprom; - struct mii_bus *mii_bus; - struct bgmac *bgmac; -- const u8 *mac = NULL; -+ const u8 *mac; - int err; - - bgmac = bgmac_alloc(&core->dev); -@@ -128,11 +128,10 @@ static int bgmac_probe(struct bcma_devic - - bcma_set_drvdata(core, bgmac); - -- if (bgmac->dev->of_node) -- mac = of_get_mac_address(bgmac->dev->of_node); -+ err = of_get_mac_address(bgmac->dev->of_node, bgmac->net_dev->dev_addr); - - /* If no MAC address assigned via device tree, check SPROM */ -- if (IS_ERR_OR_NULL(mac)) { -+ if (err) { - switch (core->core_unit) { - case 0: - mac = sprom->et0mac; -@@ -149,10 +148,9 @@ static int bgmac_probe(struct bcma_devic - err = -ENOTSUPP; - goto err; - } -+ ether_addr_copy(bgmac->net_dev->dev_addr, mac); - } - -- ether_addr_copy(bgmac->net_dev->dev_addr, mac); -- - /* On BCM4706 we need common core to access PHY */ - if (core->id.id == BCMA_CORE_4706_MAC_GBIT && - !core->bus->drv_gmac_cmn.core) { ---- a/drivers/net/ethernet/broadcom/bgmac-platform.c -+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c -@@ -173,7 +173,7 @@ static int bgmac_probe(struct platform_d - struct device_node *np = pdev->dev.of_node; - struct bgmac *bgmac; - struct resource *regs; -- const u8 *mac_addr; -+ int ret; - - bgmac = bgmac_alloc(&pdev->dev); - if (!bgmac) -@@ -192,11 +192,10 @@ static int bgmac_probe(struct platform_d - bgmac->dev = &pdev->dev; - bgmac->dma_dev = &pdev->dev; - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(bgmac->net_dev->dev_addr, mac_addr); -- else -- dev_warn(&pdev->dev, "MAC address not present in device tree\n"); -+ ret = of_get_mac_address(np, bgmac->net_dev->dev_addr); -+ if (ret) -+ dev_warn(&pdev->dev, -+ "MAC address not present in device tree\n"); - - bgmac->irq = platform_get_irq(pdev, 0); - if (bgmac->irq < 0) ---- a/drivers/net/ethernet/cadence/macb_main.c -+++ b/drivers/net/ethernet/cadence/macb_main.c -@@ -4487,7 +4487,6 @@ static int macb_probe(struct platform_de - struct net_device *dev; - struct resource *regs; - void __iomem *mem; -- const char *mac; - struct macb *bp; - int err, val; - -@@ -4600,15 +4599,11 @@ static int macb_probe(struct platform_de - if (bp->caps & MACB_CAPS_NEEDS_RSTONUBR) - bp->rx_intr_mask |= MACB_BIT(RXUBR); - -- mac = of_get_mac_address(np); -- if (PTR_ERR(mac) == -EPROBE_DEFER) { -- err = -EPROBE_DEFER; -+ err = of_get_mac_address(np, bp->dev->dev_addr); -+ if (err == -EPROBE_DEFER) - goto err_out_free_netdev; -- } else if (!IS_ERR_OR_NULL(mac)) { -- ether_addr_copy(bp->dev->dev_addr, mac); -- } else { -+ else if (err) - macb_get_hwaddr(bp); -- } - - err = of_get_phy_mode(np, &interface); - if (err) ---- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c -+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c -@@ -1385,7 +1385,6 @@ static int octeon_mgmt_probe(struct plat - struct net_device *netdev; - struct octeon_mgmt *p; - const __be32 *data; -- const u8 *mac; - struct resource *res_mix; - struct resource *res_agl; - struct resource *res_agl_prt_ctl; -@@ -1502,11 +1501,8 @@ static int octeon_mgmt_probe(struct plat - netdev->min_mtu = 64 - OCTEON_MGMT_RX_HEADROOM; - netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM - VLAN_HLEN; - -- mac = of_get_mac_address(pdev->dev.of_node); -- -- if (!IS_ERR(mac)) -- ether_addr_copy(netdev->dev_addr, mac); -- else -+ result = of_get_mac_address(pdev->dev.of_node, netdev->dev_addr); -+ if (result) - eth_hw_addr_random(netdev); - - p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0); ---- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c -+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c -@@ -1476,7 +1476,6 @@ static int bgx_init_of_phy(struct bgx *b - device_for_each_child_node(&bgx->pdev->dev, fwn) { - struct phy_device *pd; - struct device_node *phy_np; -- const char *mac; - - /* Should always be an OF node. But if it is not, we - * cannot handle it, so exit the loop. -@@ -1485,9 +1484,7 @@ static int bgx_init_of_phy(struct bgx *b - if (!node) - break; - -- mac = of_get_mac_address(node); -- if (!IS_ERR(mac)) -- ether_addr_copy(bgx->lmac[lmac].mac, mac); -+ of_get_mac_address(node, bgx->lmac[lmac].mac); - - SET_NETDEV_DEV(&bgx->lmac[lmac].netdev, &bgx->pdev->dev); - bgx->lmac[lmac].lmacid = lmac; ---- a/drivers/net/ethernet/davicom/dm9000.c -+++ b/drivers/net/ethernet/davicom/dm9000.c -@@ -1388,7 +1388,7 @@ static struct dm9000_plat_data *dm9000_p - { - struct dm9000_plat_data *pdata; - struct device_node *np = dev->of_node; -- const void *mac_addr; -+ int ret; - - if (!IS_ENABLED(CONFIG_OF) || !np) - return ERR_PTR(-ENXIO); -@@ -1402,11 +1402,9 @@ static struct dm9000_plat_data *dm9000_p - if (of_find_property(np, "davicom,no-eeprom", NULL)) - pdata->flags |= DM9000_PLATF_NO_EEPROM; - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(pdata->dev_addr, mac_addr); -- else if (PTR_ERR(mac_addr) == -EPROBE_DEFER) -- return ERR_CAST(mac_addr); -+ ret = of_get_mac_address(np, pdata->dev_addr); -+ if (ret == -EPROBE_DEFER) -+ return ERR_PTR(ret); - - return pdata; - } ---- a/drivers/net/ethernet/ethoc.c -+++ b/drivers/net/ethernet/ethoc.c -@@ -1151,11 +1151,7 @@ static int ethoc_probe(struct platform_d - ether_addr_copy(netdev->dev_addr, pdata->hwaddr); - priv->phy_id = pdata->phy_id; - } else { -- const void *mac; -- -- mac = of_get_mac_address(pdev->dev.of_node); -- if (!IS_ERR(mac)) -- ether_addr_copy(netdev->dev_addr, mac); -+ of_get_mac_address(pdev->dev.of_node, netdev->dev_addr); - priv->phy_id = -1; - } - ---- a/drivers/net/ethernet/ezchip/nps_enet.c -+++ b/drivers/net/ethernet/ezchip/nps_enet.c -@@ -575,7 +575,6 @@ static s32 nps_enet_probe(struct platfor - struct net_device *ndev; - struct nps_enet_priv *priv; - s32 err = 0; -- const char *mac_addr; - - if (!dev->of_node) - return -ENODEV; -@@ -602,10 +601,8 @@ static s32 nps_enet_probe(struct platfor - dev_dbg(dev, "Registers base address is 0x%p\n", priv->regs_base); - - /* set kernel MAC address to dev */ -- mac_addr = of_get_mac_address(dev->of_node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- else -+ err = of_get_mac_address(dev->of_node, ndev->dev_addr); -+ if (err) - eth_hw_addr_random(ndev); - - /* Get IRQ number */ ---- a/drivers/net/ethernet/freescale/fec_main.c -+++ b/drivers/net/ethernet/freescale/fec_main.c -@@ -1666,6 +1666,7 @@ static void fec_get_mac(struct net_devic - struct fec_enet_private *fep = netdev_priv(ndev); - struct fec_platform_data *pdata = dev_get_platdata(&fep->pdev->dev); - unsigned char *iap, tmpaddr[ETH_ALEN]; -+ int ret; - - /* - * try to get mac address in following order: -@@ -1681,9 +1682,9 @@ static void fec_get_mac(struct net_devic - if (!is_valid_ether_addr(iap)) { - struct device_node *np = fep->pdev->dev.of_node; - if (np) { -- const char *mac = of_get_mac_address(np); -- if (!IS_ERR(mac)) -- iap = (unsigned char *) mac; -+ ret = of_get_mac_address(np, tmpaddr); -+ if (!ret) -+ iap = tmpaddr; - } - } - ---- a/drivers/net/ethernet/freescale/fec_mpc52xx.c -+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c -@@ -813,7 +813,6 @@ static int mpc52xx_fec_probe(struct plat - const u32 *prop; - int prop_size; - struct device_node *np = op->dev.of_node; -- const char *mac_addr; - - phys_addr_t rx_fifo; - phys_addr_t tx_fifo; -@@ -891,10 +890,8 @@ static int mpc52xx_fec_probe(struct plat - * - * First try to read MAC address from DT - */ -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(ndev->dev_addr, mac_addr); -- } else { -+ rv = of_get_mac_address(np, ndev->dev_addr); -+ if (rv) { - struct mpc52xx_fec __iomem *fec = priv->fec; - - /* ---- a/drivers/net/ethernet/freescale/fman/mac.c -+++ b/drivers/net/ethernet/freescale/fman/mac.c -@@ -616,7 +616,6 @@ static int mac_probe(struct platform_dev - struct platform_device *of_dev; - struct resource res; - struct mac_priv_s *priv; -- const u8 *mac_addr; - u32 val; - u8 fman_id; - phy_interface_t phy_if; -@@ -734,11 +733,9 @@ static int mac_probe(struct platform_dev - priv->cell_index = (u8)val; - - /* Get the MAC address */ -- mac_addr = of_get_mac_address(mac_node); -- if (IS_ERR(mac_addr)) -+ err = of_get_mac_address(mac_node, mac_dev->addr); -+ if (err) - dev_warn(dev, "of_get_mac_address(%pOF) failed\n", mac_node); -- else -- ether_addr_copy(mac_dev->addr, mac_addr); - - /* Get the port handles */ - nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL); -@@ -864,7 +861,7 @@ static int mac_probe(struct platform_dev - if (err < 0) - dev_err(dev, "fman_set_mac_active_pause() = %d\n", err); - -- if (!IS_ERR(mac_addr)) -+ if (!is_zero_ether_addr(mac_dev->addr)) - dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr); - - priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev); ---- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c -+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c -@@ -918,7 +918,6 @@ static int fs_enet_probe(struct platform - const u32 *data; - struct clk *clk; - int err; -- const u8 *mac_addr; - const char *phy_connection_type; - int privsize, len, ret = -ENODEV; - -@@ -1006,9 +1005,7 @@ static int fs_enet_probe(struct platform - spin_lock_init(&fep->lock); - spin_lock_init(&fep->tx_lock); - -- mac_addr = of_get_mac_address(ofdev->dev.of_node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -+ of_get_mac_address(ofdev->dev.of_node, ndev->dev_addr); - - ret = fep->ops->allocate_bd(ndev); - if (ret) ---- a/drivers/net/ethernet/freescale/gianfar.c -+++ b/drivers/net/ethernet/freescale/gianfar.c -@@ -641,7 +641,6 @@ static phy_interface_t gfar_get_interfac - static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) - { - const char *model; -- const void *mac_addr; - int err = 0, i; - phy_interface_t interface; - struct net_device *dev = NULL; -@@ -783,11 +782,8 @@ static int gfar_of_init(struct platform_ - if (stash_len || stash_idx) - priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING; - -- mac_addr = of_get_mac_address(np); -- -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(dev->dev_addr, mac_addr); -- } else { -+ err = of_get_mac_address(np, dev->dev_addr); -+ if (err) { - eth_hw_addr_random(dev); - dev_info(&ofdev->dev, "Using random MAC address: %pM\n", dev->dev_addr); - } ---- a/drivers/net/ethernet/freescale/ucc_geth.c -+++ b/drivers/net/ethernet/freescale/ucc_geth.c -@@ -3696,7 +3696,6 @@ static int ucc_geth_probe(struct platfor - int err, ucc_num, max_speed = 0; - const unsigned int *prop; - const char *sprop; -- const void *mac_addr; - phy_interface_t phy_interface; - static const int enet_to_speed[] = { - SPEED_10, SPEED_10, SPEED_10, -@@ -3906,9 +3905,7 @@ static int ucc_geth_probe(struct platfor - goto err_free_netdev; - } - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(dev->dev_addr, mac_addr); -+ of_get_mac_address(np, dev->dev_addr); - - ugeth->ug_info = ug_info; - ugeth->dev = device; ---- a/drivers/net/ethernet/hisilicon/hisi_femac.c -+++ b/drivers/net/ethernet/hisilicon/hisi_femac.c -@@ -772,7 +772,6 @@ static int hisi_femac_drv_probe(struct p - struct net_device *ndev; - struct hisi_femac_priv *priv; - struct phy_device *phy; -- const char *mac_addr; - int ret; - - ndev = alloc_etherdev(sizeof(*priv)); -@@ -842,10 +841,8 @@ static int hisi_femac_drv_probe(struct p - (unsigned long)phy->phy_id, - phy_modes(phy->interface)); - -- mac_addr = of_get_mac_address(node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- if (!is_valid_ether_addr(ndev->dev_addr)) { -+ ret = of_get_mac_address(node, ndev->dev_addr); -+ if (ret) { - eth_hw_addr_random(ndev); - dev_warn(dev, "using random MAC address %pM\n", - ndev->dev_addr); ---- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c -+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c -@@ -1098,7 +1098,6 @@ static int hix5hd2_dev_probe(struct plat - struct net_device *ndev; - struct hix5hd2_priv *priv; - struct mii_bus *bus; -- const char *mac_addr; - int ret; - - ndev = alloc_etherdev(sizeof(struct hix5hd2_priv)); -@@ -1220,10 +1219,8 @@ static int hix5hd2_dev_probe(struct plat - goto out_phy_node; - } - -- mac_addr = of_get_mac_address(node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- if (!is_valid_ether_addr(ndev->dev_addr)) { -+ ret = of_get_mac_address(node, ndev->dev_addr); -+ if (ret) { - eth_hw_addr_random(ndev); - netdev_warn(ndev, "using random MAC address %pM\n", - ndev->dev_addr); ---- a/drivers/net/ethernet/lantiq_xrx200.c -+++ b/drivers/net/ethernet/lantiq_xrx200.c -@@ -440,7 +440,6 @@ static int xrx200_probe(struct platform_ - struct resource *res; - struct xrx200_priv *priv; - struct net_device *net_dev; -- const u8 *mac; - int err; - - /* alloc the network device */ -@@ -484,10 +483,8 @@ static int xrx200_probe(struct platform_ - return PTR_ERR(priv->clk); - } - -- mac = of_get_mac_address(np); -- if (!IS_ERR(mac)) -- ether_addr_copy(net_dev->dev_addr, mac); -- else -+ err = of_get_mac_address(np, net_dev->dev_addr); -+ if (err) - eth_hw_addr_random(net_dev); - - /* bring up the dma engine and IP core */ ---- a/drivers/net/ethernet/marvell/mv643xx_eth.c -+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c -@@ -2701,7 +2701,6 @@ static int mv643xx_eth_shared_of_add_por - struct platform_device *ppdev; - struct mv643xx_eth_platform_data ppd; - struct resource res; -- const char *mac_addr; - int ret; - int dev_num = 0; - -@@ -2732,9 +2731,7 @@ static int mv643xx_eth_shared_of_add_por - return -EINVAL; - } - -- mac_addr = of_get_mac_address(pnp); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ppd.mac_addr, mac_addr); -+ of_get_mac_address(pnp, ppd.mac_addr); - - mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size); - mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr); ---- a/drivers/net/ethernet/marvell/mvneta.c -+++ b/drivers/net/ethernet/marvell/mvneta.c -@@ -5062,7 +5062,6 @@ static int mvneta_probe(struct platform_ - struct net_device *dev; - struct phylink *phylink; - struct phy *comphy; -- const char *dt_mac_addr; - char hw_mac_addr[ETH_ALEN]; - phy_interface_t phy_mode; - const char *mac_from; -@@ -5158,10 +5157,9 @@ static int mvneta_probe(struct platform_ - goto err_free_ports; - } - -- dt_mac_addr = of_get_mac_address(dn); -- if (!IS_ERR(dt_mac_addr)) { -+ err = of_get_mac_address(dn, dev->dev_addr); -+ if (!err) { - mac_from = "device tree"; -- ether_addr_copy(dev->dev_addr, dt_mac_addr); - } else { - mvneta_get_mac_addr(pp, hw_mac_addr); - if (is_valid_ether_addr(hw_mac_addr)) { ---- a/drivers/net/ethernet/marvell/prestera/prestera_main.c -+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c -@@ -466,20 +466,17 @@ static int prestera_switch_set_base_mac_ - { - struct device_node *base_mac_np; - struct device_node *np; -- const char *base_mac; -+ int ret; - - np = of_find_compatible_node(NULL, NULL, "marvell,prestera"); - base_mac_np = of_parse_phandle(np, "base-mac-provider", 0); - -- base_mac = of_get_mac_address(base_mac_np); -- of_node_put(base_mac_np); -- if (!IS_ERR(base_mac)) -- ether_addr_copy(sw->base_mac, base_mac); -- -- if (!is_valid_ether_addr(sw->base_mac)) { -+ ret = of_get_mac_address(base_mac_np, sw->base_mac); -+ if (ret) { - eth_random_addr(sw->base_mac); - dev_info(prestera_dev(sw), "using random base mac address\n"); - } -+ of_node_put(base_mac_np); - - return prestera_hw_switch_mac_set(sw, sw->base_mac); - } ---- a/drivers/net/ethernet/marvell/pxa168_eth.c -+++ b/drivers/net/ethernet/marvell/pxa168_eth.c -@@ -1392,7 +1392,6 @@ static int pxa168_eth_probe(struct platf - struct resource *res; - struct clk *clk; - struct device_node *np; -- const unsigned char *mac_addr = NULL; - int err; - - printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n"); -@@ -1435,12 +1434,8 @@ static int pxa168_eth_probe(struct platf - - INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task); - -- if (pdev->dev.of_node) -- mac_addr = of_get_mac_address(pdev->dev.of_node); -- -- if (!IS_ERR_OR_NULL(mac_addr)) { -- ether_addr_copy(dev->dev_addr, mac_addr); -- } else { -+ err = of_get_mac_address(pdev->dev.of_node, dev->dev_addr); -+ if (err) { - /* try reading the mac address, if set by the bootloader */ - pxa168_eth_get_mac_address(dev, dev->dev_addr); - if (!is_valid_ether_addr(dev->dev_addr)) { ---- a/drivers/net/ethernet/marvell/sky2.c -+++ b/drivers/net/ethernet/marvell/sky2.c -@@ -4725,7 +4725,7 @@ static struct net_device *sky2_init_netd - { - struct sky2_port *sky2; - struct net_device *dev = alloc_etherdev(sizeof(*sky2)); -- const void *iap; -+ int ret; - - if (!dev) - return NULL; -@@ -4795,10 +4795,8 @@ static struct net_device *sky2_init_netd - * 1) from device tree data - * 2) from internal registers set by bootloader - */ -- iap = of_get_mac_address(hw->pdev->dev.of_node); -- if (!IS_ERR(iap)) -- ether_addr_copy(dev->dev_addr, iap); -- else -+ ret = of_get_mac_address(hw->pdev->dev.of_node, dev->dev_addr); -+ if (ret) - memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, - ETH_ALEN); - ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -2604,14 +2604,11 @@ static int __init mtk_init(struct net_de - { - struct mtk_mac *mac = netdev_priv(dev); - struct mtk_eth *eth = mac->hw; -- const char *mac_addr; -+ int ret; - -- mac_addr = of_get_mac_address(mac->of_node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(dev->dev_addr, mac_addr); -- -- /* If the mac address is invalid, use random mac address */ -- if (!is_valid_ether_addr(dev->dev_addr)) { -+ ret = of_get_mac_address(mac->of_node, dev->dev_addr); -+ if (ret) { -+ /* If the mac address is invalid, use random mac address */ - eth_hw_addr_random(dev); - dev_err(eth->dev, "generated random MAC address %pM\n", - dev->dev_addr); ---- a/drivers/net/ethernet/micrel/ks8851_common.c -+++ b/drivers/net/ethernet/micrel/ks8851_common.c -@@ -194,11 +194,10 @@ static void ks8851_read_mac_addr(struct - static void ks8851_init_mac(struct ks8851_net *ks, struct device_node *np) - { - struct net_device *dev = ks->netdev; -- const u8 *mac_addr; -+ int ret; - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(dev->dev_addr, mac_addr); -+ ret = of_get_mac_address(np, dev->dev_addr); -+ if (!ret) { - ks8851_write_mac_addr(dev); - return; - } ---- a/drivers/net/ethernet/microchip/lan743x_main.c -+++ b/drivers/net/ethernet/microchip/lan743x_main.c -@@ -2831,7 +2831,6 @@ static int lan743x_pcidev_probe(struct p - { - struct lan743x_adapter *adapter = NULL; - struct net_device *netdev = NULL; -- const void *mac_addr; - int ret = -ENODEV; - - netdev = devm_alloc_etherdev(&pdev->dev, -@@ -2848,9 +2847,7 @@ static int lan743x_pcidev_probe(struct p - NETIF_MSG_IFDOWN | NETIF_MSG_TX_QUEUED; - netdev->max_mtu = LAN743X_MAX_FRAME_SIZE; - -- mac_addr = of_get_mac_address(pdev->dev.of_node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(adapter->mac_address, mac_addr); -+ of_get_mac_address(pdev->dev.of_node, adapter->mac_address); - - ret = lan743x_pci_init(adapter, pdev); - if (ret) ---- a/drivers/net/ethernet/nxp/lpc_eth.c -+++ b/drivers/net/ethernet/nxp/lpc_eth.c -@@ -1347,9 +1347,7 @@ static int lpc_eth_drv_probe(struct plat - __lpc_get_mac(pldat, ndev->dev_addr); - - if (!is_valid_ether_addr(ndev->dev_addr)) { -- const char *macaddr = of_get_mac_address(np); -- if (!IS_ERR(macaddr)) -- ether_addr_copy(ndev->dev_addr, macaddr); -+ of_get_mac_address(np, ndev->dev_addr); - } - if (!is_valid_ether_addr(ndev->dev_addr)) - eth_hw_addr_random(ndev); ---- a/drivers/net/ethernet/qualcomm/qca_spi.c -+++ b/drivers/net/ethernet/qualcomm/qca_spi.c -@@ -885,7 +885,7 @@ qca_spi_probe(struct spi_device *spi) - struct net_device *qcaspi_devs = NULL; - u8 legacy_mode = 0; - u16 signature; -- const char *mac; -+ int ret; - - if (!spi->dev.of_node) { - dev_err(&spi->dev, "Missing device tree\n"); -@@ -962,12 +962,8 @@ qca_spi_probe(struct spi_device *spi) - - spi_set_drvdata(spi, qcaspi_devs); - -- mac = of_get_mac_address(spi->dev.of_node); -- -- if (!IS_ERR(mac)) -- ether_addr_copy(qca->net_dev->dev_addr, mac); -- -- if (!is_valid_ether_addr(qca->net_dev->dev_addr)) { -+ ret = of_get_mac_address(spi->dev.of_node, qca->net_dev->dev_addr); -+ if (ret) { - eth_hw_addr_random(qca->net_dev); - dev_info(&spi->dev, "Using random MAC address: %pM\n", - qca->net_dev->dev_addr); ---- a/drivers/net/ethernet/qualcomm/qca_uart.c -+++ b/drivers/net/ethernet/qualcomm/qca_uart.c -@@ -323,7 +323,6 @@ static int qca_uart_probe(struct serdev_ - { - struct net_device *qcauart_dev = alloc_etherdev(sizeof(struct qcauart)); - struct qcauart *qca; -- const char *mac; - u32 speed = 115200; - int ret; - -@@ -348,12 +347,8 @@ static int qca_uart_probe(struct serdev_ - - of_property_read_u32(serdev->dev.of_node, "current-speed", &speed); - -- mac = of_get_mac_address(serdev->dev.of_node); -- -- if (!IS_ERR(mac)) -- ether_addr_copy(qca->net_dev->dev_addr, mac); -- -- if (!is_valid_ether_addr(qca->net_dev->dev_addr)) { -+ ret = of_get_mac_address(serdev->dev.of_node, qca->net_dev->dev_addr); -+ if (ret) { - eth_hw_addr_random(qca->net_dev); - dev_info(&serdev->dev, "Using random MAC address: %pM\n", - qca->net_dev->dev_addr); ---- a/drivers/net/ethernet/renesas/ravb_main.c -+++ b/drivers/net/ethernet/renesas/ravb_main.c -@@ -109,11 +109,13 @@ static void ravb_set_buffer_align(struct - * Ethernet AVB device doesn't have ROM for MAC address. - * This function gets the MAC address that was used by a bootloader. - */ --static void ravb_read_mac_address(struct net_device *ndev, const u8 *mac) -+static void ravb_read_mac_address(struct device_node *np, -+ struct net_device *ndev) - { -- if (!IS_ERR(mac)) { -- ether_addr_copy(ndev->dev_addr, mac); -- } else { -+ int ret; -+ -+ ret = of_get_mac_address(np, ndev->dev_addr); -+ if (ret) { - u32 mahr = ravb_read(ndev, MAHR); - u32 malr = ravb_read(ndev, MALR); - -@@ -2189,7 +2191,7 @@ static int ravb_probe(struct platform_de - priv->msg_enable = RAVB_DEF_MSG_ENABLE; - - /* Read and set MAC address */ -- ravb_read_mac_address(ndev, of_get_mac_address(np)); -+ ravb_read_mac_address(np, ndev); - if (!is_valid_ether_addr(ndev->dev_addr)) { - dev_warn(&pdev->dev, - "no valid MAC address supplied, using a random one\n"); ---- a/drivers/net/ethernet/renesas/sh_eth.c -+++ b/drivers/net/ethernet/renesas/sh_eth.c -@@ -3145,7 +3145,6 @@ static struct sh_eth_plat_data *sh_eth_p - struct device_node *np = dev->of_node; - struct sh_eth_plat_data *pdata; - phy_interface_t interface; -- const char *mac_addr; - int ret; - - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); -@@ -3157,9 +3156,7 @@ static struct sh_eth_plat_data *sh_eth_p - return NULL; - pdata->phy_interface = interface; - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(pdata->mac_addr, mac_addr); -+ of_get_mac_address(np, pdata->mac_addr); - - pdata->no_ether_link = - of_property_read_bool(np, "renesas,no-ether-link"); ---- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c -+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c -@@ -25,8 +25,7 @@ - - #ifdef CONFIG_OF - static int sxgbe_probe_config_dt(struct platform_device *pdev, -- struct sxgbe_plat_data *plat, -- const char **mac) -+ struct sxgbe_plat_data *plat) - { - struct device_node *np = pdev->dev.of_node; - struct sxgbe_dma_cfg *dma_cfg; -@@ -35,7 +34,6 @@ static int sxgbe_probe_config_dt(struct - if (!np) - return -ENODEV; - -- *mac = of_get_mac_address(np); - err = of_get_phy_mode(np, &plat->interface); - if (err && err != -ENODEV) - return err; -@@ -63,8 +61,7 @@ static int sxgbe_probe_config_dt(struct - } - #else - static int sxgbe_probe_config_dt(struct platform_device *pdev, -- struct sxgbe_plat_data *plat, -- const char **mac) -+ struct sxgbe_plat_data *plat) - { - return -ENOSYS; - } -@@ -85,7 +82,6 @@ static int sxgbe_platform_probe(struct p - void __iomem *addr; - struct sxgbe_priv_data *priv = NULL; - struct sxgbe_plat_data *plat_dat = NULL; -- const char *mac = NULL; - struct net_device *ndev = platform_get_drvdata(pdev); - struct device_node *node = dev->of_node; - -@@ -101,7 +97,7 @@ static int sxgbe_platform_probe(struct p - if (!plat_dat) - return -ENOMEM; - -- ret = sxgbe_probe_config_dt(pdev, plat_dat, &mac); -+ ret = sxgbe_probe_config_dt(pdev, plat_dat); - if (ret) { - pr_err("%s: main dt probe failed\n", __func__); - return ret; -@@ -122,8 +118,7 @@ static int sxgbe_platform_probe(struct p - } - - /* Get MAC address if available (DT) */ -- if (!IS_ERR_OR_NULL(mac)) -- ether_addr_copy(priv->dev->dev_addr, mac); -+ of_get_mac_address(node, priv->dev->dev_addr); - - /* Get the TX/RX IRQ numbers */ - for (i = 0, chan = 1; i < SXGBE_TX_QUEUES; i++) { ---- a/drivers/net/ethernet/socionext/sni_ave.c -+++ b/drivers/net/ethernet/socionext/sni_ave.c -@@ -1559,7 +1559,6 @@ static int ave_probe(struct platform_dev - struct ave_private *priv; - struct net_device *ndev; - struct device_node *np; -- const void *mac_addr; - void __iomem *base; - const char *name; - int i, irq, ret; -@@ -1600,12 +1599,9 @@ static int ave_probe(struct platform_dev - - ndev->max_mtu = AVE_MAX_ETHFRAME - (ETH_HLEN + ETH_FCS_LEN); - -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- -- /* if the mac address is invalid, use random mac address */ -- if (!is_valid_ether_addr(ndev->dev_addr)) { -+ ret = of_get_mac_address(np, ndev->dev_addr); -+ if (ret) { -+ /* if the mac address is invalid, use random mac address */ - eth_hw_addr_random(ndev); - dev_warn(dev, "Using random MAC address: %pM\n", - ndev->dev_addr); ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c -@@ -115,7 +115,7 @@ static int anarion_dwmac_probe(struct pl - if (IS_ERR(gmac)) - return PTR_ERR(gmac); - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c -@@ -445,7 +445,7 @@ static int dwc_eth_dwmac_probe(struct pl - if (IS_ERR(stmmac_res.addr)) - return PTR_ERR(stmmac_res.addr); - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c -@@ -27,7 +27,7 @@ static int dwmac_generic_probe(struct pl - return ret; - - if (pdev->dev.of_node) { -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) { - dev_err(&pdev->dev, "dt configuration failed\n"); - return PTR_ERR(plat_dat); ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c -@@ -226,7 +226,7 @@ static int imx_dwmac_probe(struct platfo - if (!dwmac) - return -ENOMEM; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c -@@ -88,7 +88,7 @@ static int intel_eth_plat_probe(struct p - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) { - dev_err(&pdev->dev, "dt configuration failed\n"); - return PTR_ERR(plat_dat); ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c -@@ -255,7 +255,7 @@ static int ipq806x_gmac_probe(struct pla - if (val) - return val; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c -@@ -37,7 +37,7 @@ static int lpc18xx_dwmac_probe(struct pl - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c -@@ -407,7 +407,7 @@ static int mediatek_dwmac_probe(struct p - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c -@@ -52,7 +52,7 @@ static int meson6_dwmac_probe(struct pla - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c -@@ -370,7 +370,7 @@ static int meson8b_dwmac_probe(struct pl - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c -@@ -118,7 +118,7 @@ static int oxnas_dwmac_probe(struct plat - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c -@@ -461,7 +461,7 @@ static int qcom_ethqos_probe(struct plat - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) { - dev_err(&pdev->dev, "dt configuration failed\n"); - return PTR_ERR(plat_dat); ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c -@@ -1392,7 +1392,7 @@ static int rk_gmac_probe(struct platform - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c -@@ -397,7 +397,7 @@ static int socfpga_dwmac_probe(struct pl - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c -@@ -325,7 +325,7 @@ static int sti_dwmac_probe(struct platfo - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c -@@ -371,7 +371,7 @@ static int stm32_dwmac_probe(struct plat - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c -@@ -1203,7 +1203,7 @@ static int sun8i_dwmac_probe(struct plat - if (ret) - return -EINVAL; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c -+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c -@@ -108,7 +108,7 @@ static int sun7i_gmac_probe(struct platf - if (ret) - return ret; - -- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); -+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); - if (IS_ERR(plat_dat)) - return PTR_ERR(plat_dat); - ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h -@@ -25,7 +25,7 @@ - - struct stmmac_resources { - void __iomem *addr; -- const char *mac; -+ u8 mac[ETH_ALEN]; - int wol_irq; - int lpi_irq; - int irq; ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -@@ -5008,7 +5008,7 @@ int stmmac_dvr_probe(struct device *devi - priv->wol_irq = res->wol_irq; - priv->lpi_irq = res->lpi_irq; - -- if (!IS_ERR_OR_NULL(res->mac)) -+ if (!is_zero_ether_addr(res->mac)) - memcpy(priv->dev->dev_addr, res->mac, ETH_ALEN); - - dev_set_drvdata(device, priv->dev); ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c -@@ -395,7 +395,7 @@ static int stmmac_of_get_mac_mode(struct - * set some private fields that will be used by the main at runtime. - */ - struct plat_stmmacenet_data * --stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) -+stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) - { - struct device_node *np = pdev->dev.of_node; - struct plat_stmmacenet_data *plat; -@@ -407,12 +407,12 @@ stmmac_probe_config_dt(struct platform_d - if (!plat) - return ERR_PTR(-ENOMEM); - -- *mac = of_get_mac_address(np); -- if (IS_ERR(*mac)) { -- if (PTR_ERR(*mac) == -EPROBE_DEFER) -- return ERR_CAST(*mac); -+ rc = of_get_mac_address(np, mac); -+ if (rc) { -+ if (rc == -EPROBE_DEFER) -+ return ERR_PTR(rc); - -- *mac = NULL; -+ eth_zero_addr(mac); - } - - phy_mode = device_get_phy_mode(&pdev->dev); -@@ -643,7 +643,7 @@ void stmmac_remove_config_dt(struct plat - } - #else - struct plat_stmmacenet_data * --stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) -+stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) - { - return ERR_PTR(-EINVAL); - } ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h -@@ -12,7 +12,7 @@ - #include "stmmac.h" - - struct plat_stmmacenet_data * --stmmac_probe_config_dt(struct platform_device *pdev, const char **mac); -+stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac); - void stmmac_remove_config_dt(struct platform_device *pdev, - struct plat_stmmacenet_data *plat); - ---- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c -+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c -@@ -1742,7 +1742,6 @@ static int am65_cpsw_nuss_init_slave_por - - for_each_child_of_node(node, port_np) { - struct am65_cpsw_port *port; -- const void *mac_addr; - u32 port_id; - - /* it is not a slave port node, continue */ -@@ -1821,15 +1820,15 @@ static int am65_cpsw_nuss_init_slave_por - return ret; - } - -- mac_addr = of_get_mac_address(port_np); -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(port->slave.mac_addr, mac_addr); -- } else if (am65_cpsw_am654_get_efuse_macid(port_np, -- port->port_id, -- port->slave.mac_addr) || -- !is_valid_ether_addr(port->slave.mac_addr)) { -- random_ether_addr(port->slave.mac_addr); -- dev_err(dev, "Use random MAC address\n"); -+ ret = of_get_mac_address(port_np, port->slave.mac_addr); -+ if (ret) { -+ am65_cpsw_am654_get_efuse_macid(port_np, -+ port->port_id, -+ port->slave.mac_addr); -+ if (!is_valid_ether_addr(port->slave.mac_addr)) { -+ random_ether_addr(port->slave.mac_addr); -+ dev_err(dev, "Use random MAC address\n"); -+ } - } - } - of_node_put(node); ---- a/drivers/net/ethernet/ti/cpsw.c -+++ b/drivers/net/ethernet/ti/cpsw.c -@@ -1308,7 +1308,6 @@ static int cpsw_probe_dt(struct cpsw_pla - - for_each_available_child_of_node(node, slave_node) { - struct cpsw_slave_data *slave_data = data->slave_data + i; -- const void *mac_addr = NULL; - int lenp; - const __be32 *parp; - -@@ -1380,10 +1379,8 @@ static int cpsw_probe_dt(struct cpsw_pla - } - - no_phy_slave: -- mac_addr = of_get_mac_address(slave_node); -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(slave_data->mac_addr, mac_addr); -- } else { -+ ret = of_get_mac_address(slave_node, slave_data->mac_addr); -+ if (ret) { - ret = ti_cm_get_macid(&pdev->dev, i, - slave_data->mac_addr); - if (ret) ---- a/drivers/net/ethernet/ti/cpsw_new.c -+++ b/drivers/net/ethernet/ti/cpsw_new.c -@@ -1269,7 +1269,6 @@ static int cpsw_probe_dt(struct cpsw_com - - for_each_child_of_node(tmp_node, port_np) { - struct cpsw_slave_data *slave_data; -- const void *mac_addr; - u32 port_id; - - ret = of_property_read_u32(port_np, "reg", &port_id); -@@ -1328,10 +1327,8 @@ static int cpsw_probe_dt(struct cpsw_com - goto err_node_put; - } - -- mac_addr = of_get_mac_address(port_np); -- if (!IS_ERR(mac_addr)) { -- ether_addr_copy(slave_data->mac_addr, mac_addr); -- } else { -+ ret = of_get_mac_address(port_np, slave_data->mac_addr); -+ if (ret) { - ret = ti_cm_get_macid(dev, port_id - 1, - slave_data->mac_addr); - if (ret) ---- a/drivers/net/ethernet/ti/davinci_emac.c -+++ b/drivers/net/ethernet/ti/davinci_emac.c -@@ -1699,7 +1699,6 @@ davinci_emac_of_get_pdata(struct platfor - const struct of_device_id *match; - const struct emac_platform_data *auxdata; - struct emac_platform_data *pdata = NULL; -- const u8 *mac_addr; - - if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node) - return dev_get_platdata(&pdev->dev); -@@ -1711,11 +1710,8 @@ davinci_emac_of_get_pdata(struct platfor - np = pdev->dev.of_node; - pdata->version = EMAC_VERSION_2; - -- if (!is_valid_ether_addr(pdata->mac_addr)) { -- mac_addr = of_get_mac_address(np); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(pdata->mac_addr, mac_addr); -- } -+ if (!is_valid_ether_addr(pdata->mac_addr)) -+ of_get_mac_address(np, pdata->mac_addr); - - of_property_read_u32(np, "ti,davinci-ctrl-reg-offset", - &pdata->ctrl_reg_offset); ---- a/drivers/net/ethernet/ti/netcp_core.c -+++ b/drivers/net/ethernet/ti/netcp_core.c -@@ -1966,7 +1966,6 @@ static int netcp_create_interface(struct - struct resource res; - void __iomem *efuse = NULL; - u32 efuse_mac = 0; -- const void *mac_addr; - u8 efuse_mac_addr[6]; - u32 temp[2]; - int ret = 0; -@@ -2036,10 +2035,8 @@ static int netcp_create_interface(struct - devm_iounmap(dev, efuse); - devm_release_mem_region(dev, res.start, size); - } else { -- mac_addr = of_get_mac_address(node_interface); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(ndev->dev_addr, mac_addr); -- else -+ ret = of_get_mac_address(node_interface, ndev->dev_addr); -+ if (ret) - eth_random_addr(ndev->dev_addr); - } - ---- a/drivers/net/ethernet/wiznet/w5100-spi.c -+++ b/drivers/net/ethernet/wiznet/w5100-spi.c -@@ -423,8 +423,14 @@ static int w5100_spi_probe(struct spi_de - const struct of_device_id *of_id; - const struct w5100_ops *ops; - kernel_ulong_t driver_data; -+ const void *mac = NULL; -+ u8 tmpmac[ETH_ALEN]; - int priv_size; -- const void *mac = of_get_mac_address(spi->dev.of_node); -+ int ret; -+ -+ ret = of_get_mac_address(spi->dev.of_node, tmpmac); -+ if (!ret) -+ mac = tmpmac; - - if (spi->dev.of_node) { - of_id = of_match_device(w5100_of_match, &spi->dev); ---- a/drivers/net/ethernet/wiznet/w5100.c -+++ b/drivers/net/ethernet/wiznet/w5100.c -@@ -1159,7 +1159,7 @@ int w5100_probe(struct device *dev, cons - INIT_WORK(&priv->setrx_work, w5100_setrx_work); - INIT_WORK(&priv->restart_work, w5100_restart_work); - -- if (!IS_ERR_OR_NULL(mac_addr)) -+ if (mac_addr) - memcpy(ndev->dev_addr, mac_addr, ETH_ALEN); - else - eth_hw_addr_random(ndev); ---- a/drivers/net/ethernet/xilinx/ll_temac_main.c -+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c -@@ -438,7 +438,7 @@ static void temac_do_set_mac_address(str - - static int temac_init_mac_address(struct net_device *ndev, const void *address) - { -- ether_addr_copy(ndev->dev_addr, address); -+ memcpy(ndev->dev_addr, address, ETH_ALEN); - if (!is_valid_ether_addr(ndev->dev_addr)) - eth_hw_addr_random(ndev); - temac_do_set_mac_address(ndev); -@@ -1370,7 +1370,7 @@ static int temac_probe(struct platform_d - struct device_node *temac_np = dev_of_node(&pdev->dev), *dma_np; - struct temac_local *lp; - struct net_device *ndev; -- const void *addr; -+ u8 addr[ETH_ALEN]; - __be32 *p; - bool little_endian; - int rc = 0; -@@ -1563,8 +1563,8 @@ static int temac_probe(struct platform_d - - if (temac_np) { - /* Retrieve the MAC address */ -- addr = of_get_mac_address(temac_np); -- if (IS_ERR(addr)) { -+ rc = of_get_mac_address(temac_np, addr); -+ if (rc) { - dev_err(&pdev->dev, "could not find MAC address\n"); - return -ENODEV; - } ---- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c -+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c -@@ -1843,8 +1843,8 @@ static int axienet_probe(struct platform - struct device_node *np; - struct axienet_local *lp; - struct net_device *ndev; -- const void *mac_addr; - struct resource *ethres; -+ u8 mac_addr[ETH_ALEN]; - int addr_width = 32; - u32 value; - -@@ -2044,13 +2044,14 @@ static int axienet_probe(struct platform - dev_info(&pdev->dev, "Ethernet core IRQ not defined\n"); - - /* Retrieve the MAC address */ -- mac_addr = of_get_mac_address(pdev->dev.of_node); -- if (IS_ERR(mac_addr)) { -- dev_warn(&pdev->dev, "could not find MAC address property: %ld\n", -- PTR_ERR(mac_addr)); -- mac_addr = NULL; -+ ret = of_get_mac_address(pdev->dev.of_node, mac_addr); -+ if (!ret) { -+ axienet_set_mac_address(ndev, mac_addr); -+ } else { -+ dev_warn(&pdev->dev, "could not find MAC address property: %d\n", -+ ret); -+ axienet_set_mac_address(ndev, NULL); - } -- axienet_set_mac_address(ndev, mac_addr); - - lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD; - lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD; ---- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c -+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c -@@ -1107,7 +1107,6 @@ static int xemaclite_of_probe(struct pla - struct net_device *ndev = NULL; - struct net_local *lp = NULL; - struct device *dev = &ofdev->dev; -- const void *mac_address; - - int rc = 0; - -@@ -1149,12 +1148,9 @@ static int xemaclite_of_probe(struct pla - lp->next_rx_buf_to_use = 0x0; - lp->tx_ping_pong = get_bool(ofdev, "xlnx,tx-ping-pong"); - lp->rx_ping_pong = get_bool(ofdev, "xlnx,rx-ping-pong"); -- mac_address = of_get_mac_address(ofdev->dev.of_node); - -- if (!IS_ERR(mac_address)) { -- /* Set the MAC address. */ -- ether_addr_copy(ndev->dev_addr, mac_address); -- } else { -+ rc = of_get_mac_address(ofdev->dev.of_node, ndev->dev_addr); -+ if (rc) { - dev_warn(dev, "No MAC address found, using random\n"); - eth_hw_addr_random(ndev); - } ---- a/drivers/net/wireless/ath/ath9k/init.c -+++ b/drivers/net/wireless/ath/ath9k/init.c -@@ -618,7 +618,6 @@ static int ath9k_of_init(struct ath_soft - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); - enum ath_bus_type bus_type = common->bus_ops->ath_bus_type; -- const char *mac; - char eeprom_name[100]; - int ret; - -@@ -641,9 +640,7 @@ static int ath9k_of_init(struct ath_soft - ah->ah_flags |= AH_NO_EEP_SWAP; - } - -- mac = of_get_mac_address(np); -- if (!IS_ERR(mac)) -- ether_addr_copy(common->macaddr, mac); -+ of_get_mac_address(np, common->macaddr); - - return 0; - } ---- a/drivers/net/wireless/mediatek/mt76/eeprom.c -+++ b/drivers/net/wireless/mediatek/mt76/eeprom.c -@@ -90,15 +90,9 @@ out_put_node: - void - mt76_eeprom_override(struct mt76_dev *dev) - { --#ifdef CONFIG_OF - struct device_node *np = dev->dev->of_node; -- const u8 *mac = NULL; - -- if (np) -- mac = of_get_mac_address(np); -- if (!IS_ERR_OR_NULL(mac)) -- ether_addr_copy(dev->macaddr, mac); --#endif -+ of_get_mac_address(np, dev->macaddr); - - if (!is_valid_ether_addr(dev->macaddr)) { - eth_random_addr(dev->macaddr); ---- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c -+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c -@@ -990,11 +990,7 @@ static void rt2x00lib_rate(struct ieee80 - - void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr) - { -- const char *mac_addr; -- -- mac_addr = of_get_mac_address(rt2x00dev->dev->of_node); -- if (!IS_ERR(mac_addr)) -- ether_addr_copy(eeprom_mac_addr, mac_addr); -+ of_get_mac_address(rt2x00dev->dev->of_node, eeprom_mac_addr); - - if (!is_valid_ether_addr(eeprom_mac_addr)) { - eth_random_addr(eeprom_mac_addr); ---- a/drivers/of/of_net.c -+++ b/drivers/of/of_net.c -@@ -45,37 +45,29 @@ int of_get_phy_mode(struct device_node * - } - EXPORT_SYMBOL_GPL(of_get_phy_mode); - --static const void *of_get_mac_addr(struct device_node *np, const char *name) -+static int of_get_mac_addr(struct device_node *np, const char *name, u8 *addr) - { - struct property *pp = of_find_property(np, name, NULL); - -- if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value)) -- return pp->value; -- return NULL; -+ if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value)) { -+ memcpy(addr, pp->value, ETH_ALEN); -+ return 0; -+ } -+ return -ENODEV; - } - --static const void *of_get_mac_addr_nvmem(struct device_node *np) -+static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr) - { -- int ret; -- const void *mac; -- u8 nvmem_mac[ETH_ALEN]; - struct platform_device *pdev = of_find_device_by_node(np); -+ int ret; - - if (!pdev) -- return ERR_PTR(-ENODEV); -+ return -ENODEV; - -- ret = nvmem_get_mac_address(&pdev->dev, &nvmem_mac); -- if (ret) { -- put_device(&pdev->dev); -- return ERR_PTR(ret); -- } -- -- mac = devm_kmemdup(&pdev->dev, nvmem_mac, ETH_ALEN, GFP_KERNEL); -+ ret = nvmem_get_mac_address(&pdev->dev, addr); - put_device(&pdev->dev); -- if (!mac) -- return ERR_PTR(-ENOMEM); - -- return mac; -+ return ret; - } - - /** -@@ -98,24 +90,27 @@ static const void *of_get_mac_addr_nvmem - * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists - * but is all zeros. - * -- * Return: Will be a valid pointer on success and ERR_PTR in case of error. -+ * Return: 0 on success and errno in case of error. - */ --const void *of_get_mac_address(struct device_node *np) -+int of_get_mac_address(struct device_node *np, u8 *addr) - { -- const void *addr; -- -- addr = of_get_mac_addr(np, "mac-address"); -- if (addr) -- return addr; -+ int ret; - -- addr = of_get_mac_addr(np, "local-mac-address"); -- if (addr) -- return addr; -+ if (!np) -+ return -ENODEV; - -- addr = of_get_mac_addr(np, "address"); -- if (addr) -- return addr; -+ ret = of_get_mac_addr(np, "mac-address", addr); -+ if (!ret) -+ return 0; -+ -+ ret = of_get_mac_addr(np, "local-mac-address", addr); -+ if (!ret) -+ return 0; -+ -+ ret = of_get_mac_addr(np, "address", addr); -+ if (!ret) -+ return 0; - -- return of_get_mac_addr_nvmem(np); -+ return of_get_mac_addr_nvmem(np, addr); - } - EXPORT_SYMBOL(of_get_mac_address); ---- a/drivers/staging/octeon/ethernet.c -+++ b/drivers/staging/octeon/ethernet.c -@@ -407,14 +407,10 @@ static int cvm_oct_common_set_mac_addres - int cvm_oct_common_init(struct net_device *dev) - { - struct octeon_ethernet *priv = netdev_priv(dev); -- const u8 *mac = NULL; -+ int ret; - -- if (priv->of_node) -- mac = of_get_mac_address(priv->of_node); -- -- if (!IS_ERR_OR_NULL(mac)) -- ether_addr_copy(dev->dev_addr, mac); -- else -+ ret = of_get_mac_address(priv->of_node, dev->dev_addr); -+ if (ret) - eth_hw_addr_random(dev); - - /* ---- a/drivers/staging/wfx/main.c -+++ b/drivers/staging/wfx/main.c -@@ -339,7 +339,6 @@ int wfx_probe(struct wfx_dev *wdev) - { - int i; - int err; -- const void *macaddr; - struct gpio_desc *gpio_saved; - - // During first part of boot, gpio_wakeup cannot yet been used. So -@@ -428,9 +427,9 @@ int wfx_probe(struct wfx_dev *wdev) - - for (i = 0; i < ARRAY_SIZE(wdev->addresses); i++) { - eth_zero_addr(wdev->addresses[i].addr); -- macaddr = of_get_mac_address(wdev->dev->of_node); -- if (!IS_ERR_OR_NULL(macaddr)) { -- ether_addr_copy(wdev->addresses[i].addr, macaddr); -+ err = of_get_mac_address(wdev->dev->of_node, -+ wdev->addresses[i].addr); -+ if (!err) { - wdev->addresses[i].addr[ETH_ALEN - 1] += i; - } else { - ether_addr_copy(wdev->addresses[i].addr, ---- a/include/linux/of_net.h -+++ b/include/linux/of_net.h -@@ -13,7 +13,7 @@ - - struct net_device; - extern int of_get_phy_mode(struct device_node *np, phy_interface_t *interface); --extern const void *of_get_mac_address(struct device_node *np); -+extern int of_get_mac_address(struct device_node *np, u8 *mac); - extern struct net_device *of_find_net_device_by_node(struct device_node *np); - #else - static inline int of_get_phy_mode(struct device_node *np, -@@ -22,9 +22,9 @@ static inline int of_get_phy_mode(struct - return -ENODEV; - } - --static inline const void *of_get_mac_address(struct device_node *np) -+static inline int of_get_mac_address(struct device_node *np, u8 *mac) - { -- return ERR_PTR(-ENODEV); -+ return -ENODEV; - } - - static inline struct net_device *of_find_net_device_by_node(struct device_node *np) ---- a/include/net/dsa.h -+++ b/include/net/dsa.h -@@ -208,7 +208,7 @@ struct dsa_port { - unsigned int index; - const char *name; - struct dsa_port *cpu_dp; -- const char *mac; -+ u8 mac[ETH_ALEN]; - struct device_node *dn; - unsigned int ageing_time; - bool vlan_filtering; ---- a/net/dsa/dsa2.c -+++ b/net/dsa/dsa2.c -@@ -288,7 +288,7 @@ static int dsa_port_setup(struct dsa_por - - break; - case DSA_PORT_TYPE_USER: -- dp->mac = of_get_mac_address(dp->dn); -+ of_get_mac_address(dp->dn, dp->mac); - err = dsa_slave_create(dp); - if (err) - break; ---- a/net/dsa/slave.c -+++ b/net/dsa/slave.c -@@ -1855,7 +1855,7 @@ int dsa_slave_create(struct dsa_port *po - slave_dev->hw_features |= NETIF_F_HW_TC; - slave_dev->features |= NETIF_F_LLTX; - slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; -- if (!IS_ERR_OR_NULL(port->mac)) -+ if (!is_zero_ether_addr(port->mac)) - ether_addr_copy(slave_dev->dev_addr, port->mac); - else - eth_hw_addr_inherit(slave_dev, master); ---- a/net/ethernet/eth.c -+++ b/net/ethernet/eth.c -@@ -506,13 +506,14 @@ unsigned char * __weak arch_get_platform - - int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr) - { -- const unsigned char *addr = NULL; -+ unsigned char *addr; -+ int ret; - -- if (dev->of_node) -- addr = of_get_mac_address(dev->of_node); -- if (IS_ERR_OR_NULL(addr)) -- addr = arch_get_platform_mac_address(); -+ ret = of_get_mac_address(dev->of_node, mac_addr); -+ if (!ret) -+ return 0; - -+ addr = arch_get_platform_mac_address(); - if (!addr) - return -ENODEV; - diff --git a/target/linux/generic/backport-5.10/732-net-next-2-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-devices.patch b/target/linux/generic/backport-5.10/732-net-next-2-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-devices.patch deleted file mode 100644 index 245c5f3bd6..0000000000 --- a/target/linux/generic/backport-5.10/732-net-next-2-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-devices.patch +++ /dev/null @@ -1,77 +0,0 @@ -From f10843e04a075202dbb39dfcee047e3a2fdf5a8d Mon Sep 17 00:00:00 2001 -From: Michael Walle -Date: Mon, 12 Apr 2021 19:47:18 +0200 -Subject: of: net: fix of_get_mac_addr_nvmem() for non-platform devices - -of_get_mac_address() already supports fetching the MAC address by an -nvmem provider. But until now, it was just working for platform devices. -Esp. it was not working for DSA ports and PCI devices. It gets more -common that PCI devices have a device tree binding since SoCs contain -integrated root complexes. - -Use the nvmem of_* binding to fetch the nvmem cells by a struct -device_node. We still have to try to read the cell by device first -because there might be a nvmem_cell_lookup associated with that device. - -Signed-off-by: Michael Walle -Reviewed-by: Andrew Lunn -Signed-off-by: David S. Miller ---- - drivers/of/of_net.c | 35 ++++++++++++++++++++++++++++++----- - 1 file changed, 30 insertions(+), 5 deletions(-) - ---- a/drivers/of/of_net.c -+++ b/drivers/of/of_net.c -@@ -11,6 +11,7 @@ - #include - #include - #include -+#include - - /** - * of_get_phy_mode - Get phy mode for given device_node -@@ -59,15 +60,39 @@ static int of_get_mac_addr(struct device - static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr) - { - struct platform_device *pdev = of_find_device_by_node(np); -+ struct nvmem_cell *cell; -+ const void *mac; -+ size_t len; - int ret; - -- if (!pdev) -- return -ENODEV; -+ /* Try lookup by device first, there might be a nvmem_cell_lookup -+ * associated with a given device. -+ */ -+ if (pdev) { -+ ret = nvmem_get_mac_address(&pdev->dev, addr); -+ put_device(&pdev->dev); -+ return ret; -+ } -+ -+ cell = of_nvmem_cell_get(np, "mac-address"); -+ if (IS_ERR(cell)) -+ return PTR_ERR(cell); -+ -+ mac = nvmem_cell_read(cell, &len); -+ nvmem_cell_put(cell); -+ -+ if (IS_ERR(mac)) -+ return PTR_ERR(mac); -+ -+ if (len != ETH_ALEN || !is_valid_ether_addr(mac)) { -+ kfree(mac); -+ return -EINVAL; -+ } - -- ret = nvmem_get_mac_address(&pdev->dev, addr); -- put_device(&pdev->dev); -+ memcpy(addr, mac, ETH_ALEN); -+ kfree(mac); - -- return ret; -+ return 0; - } - - /** diff --git a/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch b/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch new file mode 100644 index 0000000000..33808f88a3 --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch @@ -0,0 +1,95 @@ +From 3637d49e11219512920aca8b8ccd0994be33fa8b Mon Sep 17 00:00:00 2001 +From: Lee Jones +Date: Thu, 18 Mar 2021 10:40:30 +0000 +Subject: [PATCH] of: base: Fix some formatting issues and provide missing + descriptions + +Fixes the following W=1 kernel build warning(s): + + drivers/of/base.c:315: warning: Function parameter or member 'cpun' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'prop_name' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'cpu' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'thread' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: expecting prototype for property holds the physical id of the(). Prototype was for __of_find_n_match_cpu_property() instead + drivers/of/base.c:1139: warning: Function parameter or member 'match' not described in 'of_find_matching_node_and_match' + drivers/of/base.c:1779: warning: Function parameter or member 'np' not described in '__of_add_property' + drivers/of/base.c:1779: warning: Function parameter or member 'prop' not described in '__of_add_property' + drivers/of/base.c:1800: warning: Function parameter or member 'np' not described in 'of_add_property' + drivers/of/base.c:1800: warning: Function parameter or member 'prop' not described in 'of_add_property' + drivers/of/base.c:1849: warning: Function parameter or member 'np' not described in 'of_remove_property' + drivers/of/base.c:1849: warning: Function parameter or member 'prop' not described in 'of_remove_property' + drivers/of/base.c:2137: warning: Function parameter or member 'dn' not described in 'of_console_check' + drivers/of/base.c:2137: warning: Function parameter or member 'name' not described in 'of_console_check' + drivers/of/base.c:2137: warning: Function parameter or member 'index' not described in 'of_console_check' + +Cc: Rob Herring +Cc: Frank Rowand +Cc: "David S. Miller" +Cc: devicetree@vger.kernel.org +Signed-off-by: Lee Jones +Signed-off-by: Rob Herring +Link: https://lore.kernel.org/r/20210318104036.3175910-5-lee.jones@linaro.org +--- + drivers/of/base.c | 16 +++++++++++----- + 1 file changed, 11 insertions(+), 5 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -305,7 +305,7 @@ bool __weak arch_match_cpu_phys_id(int c + return (u32)phys_id == cpu; + } + +-/** ++/* + * Checks if the given "prop_name" property holds the physical id of the + * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not + * NULL, local thread number within the core is returned in it. +@@ -1128,7 +1128,7 @@ EXPORT_SYMBOL(of_match_node); + * will; typically, you pass what the previous call + * returned. of_node_put() will be called on it + * @matches: array of of device match structures to search in +- * @match Updated to point at the matches entry which matched ++ * @match: Updated to point at the matches entry which matched + * + * Returns a node pointer with refcount incremented, use + * of_node_put() on it when done. +@@ -1779,6 +1779,8 @@ EXPORT_SYMBOL(of_count_phandle_with_args + + /** + * __of_add_property - Add a property to a node without lock operations ++ * @np: Caller's Device Node ++ * @prob: Property to add + */ + int __of_add_property(struct device_node *np, struct property *prop) + { +@@ -1800,6 +1802,8 @@ int __of_add_property(struct device_node + + /** + * of_add_property - Add a property to a node ++ * @np: Caller's Device Node ++ * @prob: Property to add + */ + int of_add_property(struct device_node *np, struct property *prop) + { +@@ -1844,6 +1848,8 @@ int __of_remove_property(struct device_n + + /** + * of_remove_property - Remove a property from a node. ++ * @np: Caller's Device Node ++ * @prob: Property to remove + * + * Note that we don't actually remove it, since we have given out + * who-knows-how-many pointers to the data using get-property. +@@ -2130,9 +2136,9 @@ EXPORT_SYMBOL_GPL(of_alias_get_highest_i + + /** + * of_console_check() - Test and setup console for DT setup +- * @dn - Pointer to device node +- * @name - Name to use for preferred console without index. ex. "ttyS" +- * @index - Index to use for preferred console. ++ * @dn: Pointer to device node ++ * @name: Name to use for preferred console without index. ex. "ttyS" ++ * @index: Index to use for preferred console. + * + * Check if the given device node matches the stdout-path property in the + * /chosen node. If it does then register it as the preferred console and return diff --git a/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch b/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch new file mode 100644 index 0000000000..bda03b9c4c --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch @@ -0,0 +1,489 @@ +From 62f026f082e4d762a47b43ea693b38f025122332 Mon Sep 17 00:00:00 2001 +From: Rob Herring +Date: Fri, 26 Mar 2021 13:26:06 -0600 +Subject: [PATCH] of: Fix kerneldoc output formatting + +The indentation of the kerneldoc comments affects the output formatting. +Leading tabs in particular don't work, sections need to be indented +under the section header, and several code blocks are reformatted. + +Cc: Frank Rowand +Cc: Mauro Carvalho Chehab +Signed-off-by: Rob Herring +Reviewed-by: Mauro Carvalho Chehab +Link: https://lore.kernel.org/r/20210326192606.3702739-1-robh@kernel.org +--- + drivers/of/base.c | 275 +++++++++++++++++++++++----------------------- + drivers/of/fdt.c | 9 +- + 2 files changed, 141 insertions(+), 143 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -651,11 +651,11 @@ bool of_device_is_big_endian(const struc + EXPORT_SYMBOL(of_device_is_big_endian); + + /** +- * of_get_parent - Get a node's parent if any +- * @node: Node to get parent ++ * of_get_parent - Get a node's parent if any ++ * @node: Node to get parent + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_get_parent(const struct device_node *node) + { +@@ -673,15 +673,15 @@ struct device_node *of_get_parent(const + EXPORT_SYMBOL(of_get_parent); + + /** +- * of_get_next_parent - Iterate to a node's parent +- * @node: Node to get parent of ++ * of_get_next_parent - Iterate to a node's parent ++ * @node: Node to get parent of + * +- * This is like of_get_parent() except that it drops the +- * refcount on the passed node, making it suitable for iterating +- * through a node's parents. ++ * This is like of_get_parent() except that it drops the ++ * refcount on the passed node, making it suitable for iterating ++ * through a node's parents. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_get_next_parent(struct device_node *node) + { +@@ -719,13 +719,13 @@ static struct device_node *__of_get_next + child = __of_get_next_child(parent, child)) + + /** +- * of_get_next_child - Iterate a node childs +- * @node: parent node +- * @prev: previous child of the parent node, or NULL to get first +- * +- * Returns a node pointer with refcount incremented, use of_node_put() on +- * it when done. Returns NULL when prev is the last child. Decrements the +- * refcount of prev. ++ * of_get_next_child - Iterate a node childs ++ * @node: parent node ++ * @prev: previous child of the parent node, or NULL to get first ++ * ++ * Return: A node pointer with refcount incremented, use of_node_put() on ++ * it when done. Returns NULL when prev is the last child. Decrements the ++ * refcount of prev. + */ + struct device_node *of_get_next_child(const struct device_node *node, + struct device_node *prev) +@@ -741,12 +741,12 @@ struct device_node *of_get_next_child(co + EXPORT_SYMBOL(of_get_next_child); + + /** +- * of_get_next_available_child - Find the next available child node +- * @node: parent node +- * @prev: previous child of the parent node, or NULL to get first ++ * of_get_next_available_child - Find the next available child node ++ * @node: parent node ++ * @prev: previous child of the parent node, or NULL to get first + * +- * This function is like of_get_next_child(), except that it +- * automatically skips any disabled nodes (i.e. status = "disabled"). ++ * This function is like of_get_next_child(), except that it ++ * automatically skips any disabled nodes (i.e. status = "disabled"). + */ + struct device_node *of_get_next_available_child(const struct device_node *node, + struct device_node *prev) +@@ -772,12 +772,12 @@ struct device_node *of_get_next_availabl + EXPORT_SYMBOL(of_get_next_available_child); + + /** +- * of_get_next_cpu_node - Iterate on cpu nodes +- * @prev: previous child of the /cpus node, or NULL to get first ++ * of_get_next_cpu_node - Iterate on cpu nodes ++ * @prev: previous child of the /cpus node, or NULL to get first + * +- * Returns a cpu node pointer with refcount incremented, use of_node_put() +- * on it when done. Returns NULL when prev is the last child. Decrements +- * the refcount of prev. ++ * Return: A cpu node pointer with refcount incremented, use of_node_put() ++ * on it when done. Returns NULL when prev is the last child. Decrements ++ * the refcount of prev. + */ + struct device_node *of_get_next_cpu_node(struct device_node *prev) + { +@@ -834,15 +834,15 @@ struct device_node *of_get_compatible_ch + EXPORT_SYMBOL(of_get_compatible_child); + + /** +- * of_get_child_by_name - Find the child node by name for a given parent +- * @node: parent node +- * @name: child name to look for. +- * +- * This function looks for child node for given matching name +- * +- * Returns a node pointer if found, with refcount incremented, use +- * of_node_put() on it when done. +- * Returns NULL if node is not found. ++ * of_get_child_by_name - Find the child node by name for a given parent ++ * @node: parent node ++ * @name: child name to look for. ++ * ++ * This function looks for child node for given matching name ++ * ++ * Return: A node pointer if found, with refcount incremented, use ++ * of_node_put() on it when done. ++ * Returns NULL if node is not found. + */ + struct device_node *of_get_child_by_name(const struct device_node *node, + const char *name) +@@ -893,22 +893,22 @@ struct device_node *__of_find_node_by_fu + } + + /** +- * of_find_node_opts_by_path - Find a node matching a full OF path +- * @path: Either the full path to match, or if the path does not +- * start with '/', the name of a property of the /aliases +- * node (an alias). In the case of an alias, the node +- * matching the alias' value will be returned. +- * @opts: Address of a pointer into which to store the start of +- * an options string appended to the end of the path with +- * a ':' separator. +- * +- * Valid paths: +- * /foo/bar Full path +- * foo Valid alias +- * foo/bar Valid alias + relative path ++ * of_find_node_opts_by_path - Find a node matching a full OF path ++ * @path: Either the full path to match, or if the path does not ++ * start with '/', the name of a property of the /aliases ++ * node (an alias). In the case of an alias, the node ++ * matching the alias' value will be returned. ++ * @opts: Address of a pointer into which to store the start of ++ * an options string appended to the end of the path with ++ * a ':' separator. ++ * ++ * Valid paths: ++ * * /foo/bar Full path ++ * * foo Valid alias ++ * * foo/bar Valid alias + relative path + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_opts_by_path(const char *path, const char **opts) + { +@@ -958,15 +958,15 @@ struct device_node *of_find_node_opts_by + EXPORT_SYMBOL(of_find_node_opts_by_path); + + /** +- * of_find_node_by_name - Find a node by its "name" property +- * @from: The node to start searching from or NULL; the node ++ * of_find_node_by_name - Find a node by its "name" property ++ * @from: The node to start searching from or NULL; the node + * you pass will not be searched, only the next one + * will. Typically, you pass what the previous call + * returned. of_node_put() will be called on @from. +- * @name: The name string to match against ++ * @name: The name string to match against + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_name(struct device_node *from, + const char *name) +@@ -985,16 +985,16 @@ struct device_node *of_find_node_by_name + EXPORT_SYMBOL(of_find_node_by_name); + + /** +- * of_find_node_by_type - Find a node by its "device_type" property +- * @from: The node to start searching from, or NULL to start searching ++ * of_find_node_by_type - Find a node by its "device_type" property ++ * @from: The node to start searching from, or NULL to start searching + * the entire device tree. The node you pass will not be + * searched, only the next one will; typically, you pass + * what the previous call returned. of_node_put() will be + * called on from for you. +- * @type: The type string to match against ++ * @type: The type string to match against + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_type(struct device_node *from, + const char *type) +@@ -1013,18 +1013,18 @@ struct device_node *of_find_node_by_type + EXPORT_SYMBOL(of_find_node_by_type); + + /** +- * of_find_compatible_node - Find a node based on type and one of the ++ * of_find_compatible_node - Find a node based on type and one of the + * tokens in its "compatible" property +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @type: The type string to match "device_type" or NULL to ignore +- * @compatible: The string to match to one of the tokens in the device +- * "compatible" list. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @type: The type string to match "device_type" or NULL to ignore ++ * @compatible: The string to match to one of the tokens in the device ++ * "compatible" list. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_compatible_node(struct device_node *from, + const char *type, const char *compatible) +@@ -1044,16 +1044,16 @@ struct device_node *of_find_compatible_n + EXPORT_SYMBOL(of_find_compatible_node); + + /** +- * of_find_node_with_property - Find a node which has a property with +- * the given name. +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @prop_name: The name of the property to look for. ++ * of_find_node_with_property - Find a node which has a property with ++ * the given name. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @prop_name: The name of the property to look for. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_with_property(struct device_node *from, + const char *prop_name) +@@ -1102,10 +1102,10 @@ const struct of_device_id *__of_match_no + + /** + * of_match_node - Tell if a device_node has a matching of_match structure +- * @matches: array of of device match structures to search in +- * @node: the of device structure to match against ++ * @matches: array of of device match structures to search in ++ * @node: the of device structure to match against + * +- * Low level utility function used by device matching. ++ * Low level utility function used by device matching. + */ + const struct of_device_id *of_match_node(const struct of_device_id *matches, + const struct device_node *node) +@@ -1121,17 +1121,17 @@ const struct of_device_id *of_match_node + EXPORT_SYMBOL(of_match_node); + + /** +- * of_find_matching_node_and_match - Find a node based on an of_device_id +- * match table. +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @matches: array of of device match structures to search in +- * @match: Updated to point at the matches entry which matched ++ * of_find_matching_node_and_match - Find a node based on an of_device_id ++ * match table. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @matches: array of of device match structures to search in ++ * @match: Updated to point at the matches entry which matched + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_matching_node_and_match(struct device_node *from, + const struct of_device_id *matches, +@@ -1465,21 +1465,21 @@ EXPORT_SYMBOL(of_parse_phandle); + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: ++ * Example:: + * +- * phandle1: node1 { ++ * phandle1: node1 { + * #list-cells = <2>; +- * } ++ * }; + * +- * phandle2: node2 { ++ * phandle2: node2 { + * #list-cells = <1>; +- * } ++ * }; + * +- * node3 { ++ * node3 { + * list = <&phandle1 1 2 &phandle2 3>; +- * } ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); + */ + int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +@@ -1517,29 +1517,29 @@ EXPORT_SYMBOL(of_parse_phandle_with_args + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: +- * +- * phandle1: node1 { +- * #list-cells = <2>; +- * } +- * +- * phandle2: node2 { +- * #list-cells = <1>; +- * } ++ * Example:: + * +- * phandle3: node3 { +- * #list-cells = <1>; +- * list-map = <0 &phandle2 3>, +- * <1 &phandle2 2>, +- * <2 &phandle1 5 1>; +- * list-map-mask = <0x3>; +- * }; +- * +- * node4 { +- * list = <&phandle1 1 2 &phandle3 0>; +- * } ++ * phandle1: node1 { ++ * #list-cells = <2>; ++ * }; ++ * ++ * phandle2: node2 { ++ * #list-cells = <1>; ++ * }; ++ * ++ * phandle3: node3 { ++ * #list-cells = <1>; ++ * list-map = <0 &phandle2 3>, ++ * <1 &phandle2 2>, ++ * <2 &phandle1 5 1>; ++ * list-map-mask = <0x3>; ++ * }; ++ * ++ * node4 { ++ * list = <&phandle1 1 2 &phandle3 0>; ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_args(node4, "list", "list", 1, &args); + */ + int of_parse_phandle_with_args_map(const struct device_node *np, +@@ -1699,19 +1699,19 @@ EXPORT_SYMBOL(of_parse_phandle_with_args + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: ++ * Example:: + * +- * phandle1: node1 { +- * } ++ * phandle1: node1 { ++ * }; + * +- * phandle2: node2 { +- * } ++ * phandle2: node2 { ++ * }; + * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * } ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); + */ + int of_parse_phandle_with_fixed_args(const struct device_node *np, +@@ -1957,13 +1957,12 @@ static void of_alias_add(struct alias_pr + + /** + * of_alias_scan - Scan all properties of the 'aliases' node ++ * @dt_alloc: An allocator that provides a virtual address to memory ++ * for storing the resulting tree + * + * The function scans all the properties of the 'aliases' node and populates + * the global lookup table with the properties. It returns the + * number of alias properties found, or an error code in case of failure. +- * +- * @dt_alloc: An allocator that provides a virtual address to memory +- * for storing the resulting tree + */ + void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align)) + { +@@ -2158,12 +2157,12 @@ bool of_console_check(struct device_node + EXPORT_SYMBOL_GPL(of_console_check); + + /** +- * of_find_next_cache_node - Find a node's subsidiary cache +- * @np: node of type "cpu" or "cache" ++ * of_find_next_cache_node - Find a node's subsidiary cache ++ * @np: node of type "cpu" or "cache" + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. Caller should hold a reference +- * to np. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. Caller should hold a reference ++ * to np. + */ + struct device_node *of_find_next_cache_node(const struct device_node *np) + { +--- a/drivers/of/fdt.c ++++ b/drivers/of/fdt.c +@@ -349,11 +349,6 @@ static int unflatten_dt_nodes(const void + + /** + * __unflatten_device_tree - create tree of device_nodes from flat blob +- * +- * unflattens a device-tree, creating the +- * tree of struct device_node. It also fills the "name" and "type" +- * pointers of the nodes so the normal device-tree walking functions +- * can be used. + * @blob: The blob to expand + * @dad: Parent device node + * @mynodes: The device_node tree created by the call +@@ -361,6 +356,10 @@ static int unflatten_dt_nodes(const void + * for the resulting tree + * @detached: if true set OF_DETACHED on @mynodes + * ++ * unflattens a device-tree, creating the tree of struct device_node. It also ++ * fills the "name" and "type" pointers of the nodes so the normal device-tree ++ * walking functions can be used. ++ * + * Returns NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ diff --git a/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch b/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch new file mode 100644 index 0000000000..9c99ccb1db --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch @@ -0,0 +1,787 @@ +From 8c8239c2c1fb82f171cb22a707f3bb88a2f22109 Mon Sep 17 00:00:00 2001 +From: Rob Herring +Date: Thu, 25 Mar 2021 10:47:12 -0600 +Subject: [PATCH] of: Add missing 'Return' section in kerneldoc comments + +Many of the DT kerneldoc comments are lacking a 'Return' section. Let's +add the section in cases we have a description of return values. There's +still some cases where the return values are not documented. + +Cc: Frank Rowand +Cc: Mauro Carvalho Chehab +Signed-off-by: Rob Herring +Reviewed-by: Mauro Carvalho Chehab +Link: https://lore.kernel.org/r/20210325164713.1296407-8-robh@kernel.org +--- + drivers/of/base.c | 39 +++++++++++++------------ + drivers/of/dynamic.c | 19 ++++++++----- + drivers/of/fdt.c | 8 +++--- + drivers/of/irq.c | 14 ++++----- + drivers/of/overlay.c | 16 +++++------ + drivers/of/platform.c | 10 +++---- + drivers/of/property.c | 66 +++++++++++++++++++++++++++---------------- + include/linux/of.h | 63 ++++++++++++++++++++++++++--------------- + 8 files changed, 140 insertions(+), 95 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -244,7 +244,7 @@ struct device_node *__of_find_all_nodes( + * @prev: Previous node or NULL to start iteration + * of_node_put() will be called on it + * +- * Returns a node pointer with refcount incremented, use ++ * Return: A node pointer with refcount incremented, use + * of_node_put() on it when done. + */ + struct device_node *of_find_all_nodes(struct device_node *prev) +@@ -374,7 +374,7 @@ bool __weak arch_find_n_match_cpu_physic + * before booting secondary cores. This function uses arch_match_cpu_phys_id + * which can be overridden by architecture specific implementation. + * +- * Returns a node pointer for the logical cpu with refcount incremented, use ++ * Return: A node pointer for the logical cpu with refcount incremented, use + * of_node_put() on it when done. Returns NULL if not found. + */ + struct device_node *of_get_cpu_node(int cpu, unsigned int *thread) +@@ -394,8 +394,8 @@ EXPORT_SYMBOL(of_get_cpu_node); + * + * @cpu_node: Pointer to the device_node for CPU. + * +- * Returns the logical CPU number of the given CPU device_node. +- * Returns -ENODEV if the CPU is not found. ++ * Return: The logical CPU number of the given CPU device_node or -ENODEV if the ++ * CPU is not found. + */ + int of_cpu_node_to_id(struct device_node *cpu_node) + { +@@ -427,7 +427,7 @@ EXPORT_SYMBOL(of_cpu_node_to_id); + * bindings. This function check for both and returns the idle state node for + * the requested index. + * +- * In case an idle state node is found at @index, the refcount is incremented ++ * Return: An idle state node if found at @index. The refcount is incremented + * for it, so call of_node_put() on it when done. Returns NULL if not found. + */ + struct device_node *of_get_cpu_state_node(struct device_node *cpu_node, +@@ -561,7 +561,7 @@ int of_device_compatible_match(struct de + * of_machine_is_compatible - Test root of device tree for a given compatible value + * @compat: compatible string to look for in root node's compatible property. + * +- * Returns a positive integer if the root node has the given value in its ++ * Return: A positive integer if the root node has the given value in its + * compatible property. + */ + int of_machine_is_compatible(const char *compat) +@@ -583,7 +583,7 @@ EXPORT_SYMBOL(of_machine_is_compatible); + * + * @device: Node to check for availability, with locks already held + * +- * Returns true if the status property is absent or set to "okay" or "ok", ++ * Return: True if the status property is absent or set to "okay" or "ok", + * false otherwise + */ + static bool __of_device_is_available(const struct device_node *device) +@@ -611,7 +611,7 @@ static bool __of_device_is_available(con + * + * @device: Node to check for availability + * +- * Returns true if the status property is absent or set to "okay" or "ok", ++ * Return: True if the status property is absent or set to "okay" or "ok", + * false otherwise + */ + bool of_device_is_available(const struct device_node *device) +@@ -632,7 +632,7 @@ EXPORT_SYMBOL(of_device_is_available); + * + * @device: Node to check for endianness + * +- * Returns true if the device has a "big-endian" property, or if the kernel ++ * Return: True if the device has a "big-endian" property, or if the kernel + * was compiled for BE *and* the device has a "native-endian" property. + * Returns false otherwise. + * +@@ -816,7 +816,7 @@ EXPORT_SYMBOL(of_get_next_cpu_node); + * Lookup child node whose compatible property contains the given compatible + * string. + * +- * Returns a node pointer with refcount incremented, use of_node_put() on it ++ * Return: a node pointer with refcount incremented, use of_node_put() on it + * when done; or NULL if not found. + */ + struct device_node *of_get_compatible_child(const struct device_node *parent, +@@ -1170,7 +1170,7 @@ EXPORT_SYMBOL(of_find_matching_node_and_ + * It does this by stripping the manufacturer prefix (as delimited by a ',') + * from the first entry in the compatible list property. + * +- * This routine returns 0 on success, <0 on failure. ++ * Return: This routine returns 0 on success, <0 on failure. + */ + int of_modalias_node(struct device_node *node, char *modalias, int len) + { +@@ -1190,7 +1190,7 @@ EXPORT_SYMBOL_GPL(of_modalias_node); + * of_find_node_by_phandle - Find a node given a phandle + * @handle: phandle of the node to find + * +- * Returns a node pointer with refcount incremented, use ++ * Return: A node pointer with refcount incremented, use + * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_phandle(phandle handle) +@@ -1431,7 +1431,7 @@ static int __of_parse_phandle_with_args( + * @index: For properties holding a table of phandles, this is the index into + * the table + * +- * Returns the device_node pointer with refcount incremented. Use ++ * Return: The device_node pointer with refcount incremented. Use + * of_node_put() on it when done. + */ + struct device_node *of_parse_phandle(const struct device_node *np, +@@ -1731,7 +1731,7 @@ EXPORT_SYMBOL(of_parse_phandle_with_fixe + * @list_name: property name that contains a list + * @cells_name: property name that specifies phandles' arguments count + * +- * Returns the number of phandle + argument tuples within a property. It ++ * Return: The number of phandle + argument tuples within a property. It + * is a typical pattern to encode a list of phandle and variable + * arguments into a single property. The number of arguments is encoded + * by a property in the phandle-target node. For example, a gpios +@@ -2031,7 +2031,9 @@ void of_alias_scan(void * (*dt_alloc)(u6 + * @stem: Alias stem of the given device_node + * + * The function travels the lookup table to get the alias id for the given +- * device_node and alias stem. It returns the alias id if found. ++ * device_node and alias stem. ++ * ++ * Return: The alias id if found. + */ + int of_alias_get_id(struct device_node *np, const char *stem) + { +@@ -2140,8 +2142,9 @@ EXPORT_SYMBOL_GPL(of_alias_get_highest_i + * @index: Index to use for preferred console. + * + * Check if the given device node matches the stdout-path property in the +- * /chosen node. If it does then register it as the preferred console and return +- * TRUE. Otherwise return FALSE. ++ * /chosen node. If it does then register it as the preferred console. ++ * ++ * Return: TRUE if console successfully setup. Otherwise return FALSE. + */ + bool of_console_check(struct device_node *dn, char *name, int index) + { +@@ -2192,7 +2195,7 @@ struct device_node *of_find_next_cache_n + * + * @cpu: cpu number(logical index) for which the last cache level is needed + * +- * Returns the the level at which the last cache is present. It is exactly ++ * Return: The the level at which the last cache is present. It is exactly + * same as the total number of cache levels for the given logical cpu. + */ + int of_find_last_cache_level(unsigned int cpu) +--- a/drivers/of/dynamic.c ++++ b/drivers/of/dynamic.c +@@ -27,7 +27,7 @@ static struct device_node *kobj_to_devic + * @node: Node to inc refcount, NULL is supported to simplify writing of + * callers + * +- * Returns node. ++ * Return: The node with refcount incremented. + */ + struct device_node *of_node_get(struct device_node *node) + { +@@ -104,7 +104,8 @@ int of_reconfig_notify(unsigned long act + * @arg - argument of the of notifier + * + * Returns the new state of a device based on the notifier used. +- * Returns 0 on device going from enabled to disabled, 1 on device ++ * ++ * Return: 0 on device going from enabled to disabled, 1 on device + * going from disabled to enabled and -1 on no change. + */ + int of_reconfig_get_state_change(unsigned long action, struct of_reconfig_data *pr) +@@ -371,7 +372,8 @@ void of_node_release(struct kobject *kob + * property structure and the property name & contents. The property's + * flags have the OF_DYNAMIC bit set so that we can differentiate between + * dynamically allocated properties and not. +- * Returns the newly allocated property or NULL on out of memory error. ++ * ++ * Return: The newly allocated property or NULL on out of memory error. + */ + struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags) + { +@@ -414,7 +416,7 @@ struct property *__of_prop_dup(const str + * another node. The node data are dynamically allocated and all the node + * flags have the OF_DYNAMIC & OF_DETACHED bits set. + * +- * Returns the newly allocated node or NULL on out of memory error. ++ * Return: The newly allocated node or NULL on out of memory error. + */ + struct device_node *__of_node_dup(const struct device_node *np, + const char *full_name) +@@ -780,7 +782,8 @@ static int __of_changeset_apply(struct o + * Any side-effects of live tree state changes are applied here on + * success, like creation/destruction of devices and side-effects + * like creation of sysfs properties and directories. +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + * On error the partially applied effects are reverted. + */ + int of_changeset_apply(struct of_changeset *ocs) +@@ -874,7 +877,8 @@ static int __of_changeset_revert(struct + * was before the application. + * Any side-effects like creation/destruction of devices and + * removal of sysfs properties and directories are applied. +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + */ + int of_changeset_revert(struct of_changeset *ocs) + { +@@ -902,7 +906,8 @@ EXPORT_SYMBOL_GPL(of_changeset_revert); + * + OF_RECONFIG_ADD_PROPERTY + * + OF_RECONFIG_REMOVE_PROPERTY, + * + OF_RECONFIG_UPDATE_PROPERTY +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + */ + int of_changeset_action(struct of_changeset *ocs, unsigned long action, + struct device_node *np, struct property *prop) +--- a/drivers/of/fdt.c ++++ b/drivers/of/fdt.c +@@ -282,7 +282,7 @@ static void reverse_nodes(struct device_ + * @dad: Parent struct device_node + * @nodepp: The device_node tree created by the call + * +- * It returns the size of unflattened device tree or error code ++ * Return: The size of unflattened device tree or error code + */ + static int unflatten_dt_nodes(const void *blob, + void *mem, +@@ -360,7 +360,7 @@ static int unflatten_dt_nodes(const void + * fills the "name" and "type" pointers of the nodes so the normal device-tree + * walking functions can be used. + * +- * Returns NULL on failure or the memory chunk containing the unflattened ++ * Return: NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ + void *__unflatten_device_tree(const void *blob, +@@ -441,7 +441,7 @@ static DEFINE_MUTEX(of_fdt_unflatten_mut + * pointers of the nodes so the normal device-tree walking functions + * can be used. + * +- * Returns NULL on failure or the memory chunk containing the unflattened ++ * Return: NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ + void *of_fdt_unflatten_tree(const unsigned long *blob, +@@ -715,7 +715,7 @@ const void *__init of_get_flat_dt_prop(u + * @node: node to test + * @compat: compatible string to compare with compatible list. + * +- * On match, returns a non-zero value with smaller values returned for more ++ * Return: a non-zero value on match with smaller values returned for more + * specific compatible values. + */ + static int of_fdt_is_compatible(const void *blob, +--- a/drivers/of/irq.c ++++ b/drivers/of/irq.c +@@ -48,7 +48,7 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map); + * of_irq_find_parent - Given a device node, find its interrupt parent node + * @child: pointer to device node + * +- * Returns a pointer to the interrupt parent node, or NULL if the interrupt ++ * Return: A pointer to the interrupt parent node, or NULL if the interrupt + * parent could not be determined. + */ + struct device_node *of_irq_find_parent(struct device_node *child) +@@ -81,14 +81,14 @@ EXPORT_SYMBOL_GPL(of_irq_find_parent); + * @addr: address specifier (start of "reg" property of the device) in be32 format + * @out_irq: structure of_phandle_args updated by this function + * +- * Returns 0 on success and a negative number on error +- * + * This function is a low-level interrupt tree walking function. It + * can be used to do a partial walk with synthetized reg and interrupts + * properties, for example when resolving PCI interrupts when no device + * node exist for the parent. It takes an interrupt specifier structure as + * input, walks the tree looking for any interrupt-map properties, translates + * the specifier for each map, and then returns the translated map. ++ * ++ * Return: 0 on success and a negative number on error + */ + int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq) + { +@@ -380,7 +380,7 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource); + * @dev: pointer to device tree node + * @index: zero-based index of the IRQ + * +- * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or ++ * Return: Linux IRQ number on success, or 0 on the IRQ mapping failure, or + * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case + * of any other failure. + */ +@@ -407,7 +407,7 @@ EXPORT_SYMBOL_GPL(of_irq_get); + * @dev: pointer to device tree node + * @name: IRQ name + * +- * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or ++ * Return: Linux IRQ number on success, or 0 on the IRQ mapping failure, or + * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case + * of any other failure. + */ +@@ -447,7 +447,7 @@ int of_irq_count(struct device_node *dev + * @res: array of resources to fill in + * @nr_irqs: the number of IRQs (and upper bound for num of @res elements) + * +- * Returns the size of the filled in table (up to @nr_irqs). ++ * Return: The size of the filled in table (up to @nr_irqs). + */ + int of_irq_to_resource_table(struct device_node *dev, struct resource *res, + int nr_irqs) +@@ -602,7 +602,7 @@ static u32 __of_msi_map_id(struct device + * Walk up the device hierarchy looking for devices with a "msi-map" + * property. If found, apply the mapping to @id_in. + * +- * Returns the mapped MSI ID. ++ * Return: The mapped MSI ID. + */ + u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in) + { +--- a/drivers/of/overlay.c ++++ b/drivers/of/overlay.c +@@ -296,7 +296,7 @@ err_free_target_path: + * + * Update of property in symbols node is not allowed. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. + */ + static int add_changeset_property(struct overlay_changeset *ovcs, +@@ -401,7 +401,7 @@ static int add_changeset_property(struct + * + * NOTE_2: Multiple mods of created nodes not supported. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. + */ + static int add_changeset_node(struct overlay_changeset *ovcs, +@@ -473,7 +473,7 @@ static int add_changeset_node(struct ove + * + * Do not allow symbols node to have any children. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay_node. + */ + static int build_changeset_next_level(struct overlay_changeset *ovcs, +@@ -604,7 +604,7 @@ static int find_dup_cset_prop(struct ove + * the same node or duplicate {add, delete, or update} properties entries + * for the same property. + * +- * Returns 0 on success, or -EINVAL if duplicate changeset entry found. ++ * Return: 0 on success, or -EINVAL if duplicate changeset entry found. + */ + static int changeset_dup_entry_check(struct overlay_changeset *ovcs) + { +@@ -628,7 +628,7 @@ static int changeset_dup_entry_check(str + * any portions of the changeset that were successfully created will remain + * in @ovcs->cset. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid overlay in @ovcs->fragments[]. + */ + static int build_changeset(struct overlay_changeset *ovcs) +@@ -724,7 +724,7 @@ static struct device_node *find_target(s + * the top level of @tree. The relevant top level nodes are the fragment + * nodes and the __symbols__ node. Any other top level node will be ignored. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, -EINVAL if error ++ * Return: 0 on success, -ENOMEM if memory allocation failure, -EINVAL if error + * detected in @tree, or -ENOSPC if idr_alloc() error. + */ + static int init_overlay_changeset(struct overlay_changeset *ovcs, +@@ -1179,7 +1179,7 @@ static int overlay_removal_is_ok(struct + * If an error is returned by an overlay changeset post-remove notifier + * then no further overlay changeset post-remove notifier will be called. + * +- * Returns 0 on success, or a negative error number. *ovcs_id is set to ++ * Return: 0 on success, or a negative error number. *ovcs_id is set to + * zero after reverting the changeset, even if a subsequent error occurs. + */ + int of_overlay_remove(int *ovcs_id) +@@ -1257,7 +1257,7 @@ EXPORT_SYMBOL_GPL(of_overlay_remove); + * + * Removes all overlays from the system in the correct order. + * +- * Returns 0 on success, or a negative error number ++ * Return: 0 on success, or a negative error number + */ + int of_overlay_remove_all(void) + { +--- a/drivers/of/platform.c ++++ b/drivers/of/platform.c +@@ -44,7 +44,7 @@ static const struct of_device_id of_skip + * Takes a reference to the embedded struct device which needs to be dropped + * after use. + * +- * Returns platform_device pointer, or NULL if not found ++ * Return: platform_device pointer, or NULL if not found + */ + struct platform_device *of_find_device_by_node(struct device_node *np) + { +@@ -160,7 +160,7 @@ EXPORT_SYMBOL(of_device_alloc); + * @platform_data: pointer to populate platform_data pointer with + * @parent: Linux device model parent device. + * +- * Returns pointer to created platform device, or NULL if a device was not ++ * Return: Pointer to created platform device, or NULL if a device was not + * registered. Unavailable devices will not get registered. + */ + static struct platform_device *of_platform_device_create_pdata( +@@ -204,7 +204,7 @@ err_clear_flag: + * @bus_id: name to assign device + * @parent: Linux device model parent device. + * +- * Returns pointer to created platform device, or NULL if a device was not ++ * Return: Pointer to created platform device, or NULL if a device was not + * registered. Unavailable devices will not get registered. + */ + struct platform_device *of_platform_device_create(struct device_node *np, +@@ -463,7 +463,7 @@ EXPORT_SYMBOL(of_platform_bus_probe); + * New board support should be using this function instead of + * of_platform_bus_probe(). + * +- * Returns 0 on success, < 0 on failure. ++ * Return: 0 on success, < 0 on failure. + */ + int of_platform_populate(struct device_node *root, + const struct of_device_id *matches, +@@ -608,7 +608,7 @@ static void devm_of_platform_populate_re + * Similar to of_platform_populate(), but will automatically call + * of_platform_depopulate() when the device is unbound from the bus. + * +- * Returns 0 on success, < 0 on failure. ++ * Return: 0 on success, < 0 on failure. + */ + int devm_of_platform_populate(struct device *dev) + { +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -60,9 +60,11 @@ EXPORT_SYMBOL(of_graph_is_present); + * @elem_size: size of the individual element + * + * Search for a property in a device node and count the number of elements of +- * size elem_size in it. Returns number of elements on sucess, -EINVAL if the +- * property does not exist or its length does not match a multiple of elem_size +- * and -ENODATA if the property does not have a value. ++ * size elem_size in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does not ++ * exist or its length does not match a multiple of elem_size and -ENODATA if ++ * the property does not have a value. + */ + int of_property_count_elems_of_size(const struct device_node *np, + const char *propname, int elem_size) +@@ -94,8 +96,9 @@ EXPORT_SYMBOL_GPL(of_property_count_elem + * @len: if !=NULL, actual length is written to here + * + * Search for a property in a device node and valid the requested size. +- * Returns the property value on success, -EINVAL if the property does not +- * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the ++ * ++ * Return: The property value on success, -EINVAL if the property does not ++ * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data is too small or too large. + * + */ +@@ -128,7 +131,9 @@ static void *of_find_property_value_of_s + * @out_value: pointer to return value, modified only if no error. + * + * Search for a property in a device node and read nth 32-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * +@@ -160,7 +165,9 @@ EXPORT_SYMBOL_GPL(of_property_read_u32_i + * @out_value: pointer to return value, modified only if no error. + * + * Search for a property in a device node and read nth 64-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * +@@ -195,12 +202,14 @@ EXPORT_SYMBOL_GPL(of_property_read_u64_i + * sz_min will be read. + * + * Search for a property in a device node and read 8-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property +- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW +- * if the property data is smaller than sz_min or longer than sz_max. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 8 <0x50 0x60 0x70>; ++ * ``property = /bits/ 8 <0x50 0x60 0x70>;`` ++ * ++ * Return: The number of elements read on success, -EINVAL if the property ++ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW ++ * if the property data is smaller than sz_min or longer than sz_max. + * + * The out_values is modified only if a valid u8 value can be decoded. + */ +@@ -243,12 +252,14 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * sz_min will be read. + * + * Search for a property in a device node and read 16-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property +- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW +- * if the property data is smaller than sz_min or longer than sz_max. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 16 <0x5000 0x6000 0x7000>; ++ * ``property = /bits/ 16 <0x5000 0x6000 0x7000>;`` ++ * ++ * Return: The number of elements read on success, -EINVAL if the property ++ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW ++ * if the property data is smaller than sz_min or longer than sz_max. + * + * The out_values is modified only if a valid u16 value can be decoded. + */ +@@ -291,7 +302,9 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * sz_min will be read. + * + * Search for a property in a device node and read 32-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property ++ * it. ++ * ++ * Return: The number of elements read on success, -EINVAL if the property + * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW + * if the property data is smaller than sz_min or longer than sz_max. + * +@@ -330,7 +343,9 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * @out_value: pointer to return value, modified only if return value is 0. + * + * Search for a property in a device node and read a 64-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * +@@ -365,7 +380,9 @@ EXPORT_SYMBOL_GPL(of_property_read_u64); + * sz_min will be read. + * + * Search for a property in a device node and read 64-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property ++ * it. ++ * ++ * Return: The number of elements read on success, -EINVAL if the property + * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW + * if the property data is smaller than sz_min or longer than sz_max. + * +@@ -407,10 +424,11 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * return value is 0. + * + * Search for a property in a device tree node and retrieve a null +- * terminated string value (pointer to data, not a copy). Returns 0 on +- * success, -EINVAL if the property does not exist, -ENODATA if property +- * does not have a value, and -EILSEQ if the string is not null-terminated +- * within the length of the property data. ++ * terminated string value (pointer to data, not a copy). ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, -ENODATA if ++ * property does not have a value, and -EILSEQ if the string is not ++ * null-terminated within the length of the property data. + * + * The out_string pointer is modified only if a valid string can be decoded. + */ +@@ -774,7 +792,7 @@ EXPORT_SYMBOL(of_graph_get_remote_port_p + * @node: pointer to a local endpoint device_node + * + * Return: Remote port node associated with remote endpoint node linked +- * to @node. Use of_node_put() on it when done. ++ * to @node. Use of_node_put() on it when done. + */ + struct device_node *of_graph_get_remote_port(const struct device_node *node) + { +@@ -807,7 +825,7 @@ EXPORT_SYMBOL(of_graph_get_endpoint_coun + * @endpoint: identifier (value of reg property) of the endpoint node + * + * Return: Remote device node associated with remote endpoint node linked +- * to @node. Use of_node_put() on it when done. ++ * to @node. Use of_node_put() on it when done. + */ + struct device_node *of_graph_get_remote_node(const struct device_node *node, + u32 port, u32 endpoint) +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -424,12 +424,14 @@ extern int of_detach_node(struct device_ + * @sz: number of array elements to read + * + * Search for a property in a device node and read 8-bit value(s) from +- * it. Returns 0 on success, -EINVAL if the property does not exist, +- * -ENODATA if property does not have a value, and -EOVERFLOW if the +- * property data isn't large enough. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 8 <0x50 0x60 0x70>; ++ * ``property = /bits/ 8 <0x50 0x60 0x70>;`` ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, ++ * -ENODATA if property does not have a value, and -EOVERFLOW if the ++ * property data isn't large enough. + * + * The out_values is modified only if a valid u8 value can be decoded. + */ +@@ -454,12 +456,14 @@ static inline int of_property_read_u8_ar + * @sz: number of array elements to read + * + * Search for a property in a device node and read 16-bit value(s) from +- * it. Returns 0 on success, -EINVAL if the property does not exist, +- * -ENODATA if property does not have a value, and -EOVERFLOW if the +- * property data isn't large enough. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 16 <0x5000 0x6000 0x7000>; ++ * ``property = /bits/ 16 <0x5000 0x6000 0x7000>;`` ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, ++ * -ENODATA if property does not have a value, and -EOVERFLOW if the ++ * property data isn't large enough. + * + * The out_values is modified only if a valid u16 value can be decoded. + */ +@@ -485,7 +489,9 @@ static inline int of_property_read_u16_a + * @sz: number of array elements to read + * + * Search for a property in a device node and read 32-bit value(s) from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * +@@ -513,7 +519,9 @@ static inline int of_property_read_u32_a + * @sz: number of array elements to read + * + * Search for a property in a device node and read 64-bit value(s) from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, + * -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data isn't large enough. + * +@@ -1063,7 +1071,9 @@ static inline bool of_node_is_type(const + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u8 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u8 and -ENODATA if the + * property does not have a value. + */ +@@ -1080,7 +1090,9 @@ static inline int of_property_count_u8_e + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u16 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u16 and -ENODATA if the + * property does not have a value. + */ +@@ -1097,7 +1109,9 @@ static inline int of_property_count_u16_ + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u32 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u32 and -ENODATA if the + * property does not have a value. + */ +@@ -1114,7 +1128,9 @@ static inline int of_property_count_u32_ + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u64 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u64 and -ENODATA if the + * property does not have a value. + */ +@@ -1135,7 +1151,7 @@ static inline int of_property_count_u64_ + * Search for a property in a device tree node and retrieve a list of + * terminated string values (pointer to data, not a copy) in that property. + * +- * If @out_strs is NULL, the number of strings in the property is returned. ++ * Return: If @out_strs is NULL, the number of strings in the property is returned. + */ + static inline int of_property_read_string_array(const struct device_node *np, + const char *propname, const char **out_strs, +@@ -1151,10 +1167,11 @@ static inline int of_property_read_strin + * @propname: name of the property to be searched. + * + * Search for a property in a device tree node and retrieve the number of null +- * terminated string contain in it. Returns the number of strings on +- * success, -EINVAL if the property does not exist, -ENODATA if property +- * does not have a value, and -EILSEQ if the string is not null-terminated +- * within the length of the property data. ++ * terminated string contain in it. ++ * ++ * Return: The number of strings on success, -EINVAL if the property does not ++ * exist, -ENODATA if property does not have a value, and -EILSEQ if the string ++ * is not null-terminated within the length of the property data. + */ + static inline int of_property_count_strings(const struct device_node *np, + const char *propname) +@@ -1174,7 +1191,8 @@ static inline int of_property_count_stri + * Search for a property in a device tree node and retrieve a null + * terminated string value (pointer to data, not a copy) in the list of strings + * contained in that property. +- * Returns 0 on success, -EINVAL if the property does not exist, -ENODATA if ++ * ++ * Return: 0 on success, -EINVAL if the property does not exist, -ENODATA if + * property does not have a value, and -EILSEQ if the string is not + * null-terminated within the length of the property data. + * +@@ -1194,7 +1212,8 @@ static inline int of_property_read_strin + * @propname: name of the property to be searched. + * + * Search for a property in a device node. +- * Returns true if the property exists false otherwise. ++ * ++ * Return: true if the property exists false otherwise. + */ + static inline bool of_property_read_bool(const struct device_node *np, + const char *propname) +@@ -1440,7 +1459,7 @@ static inline int of_reconfig_get_state_ + * of_device_is_system_power_controller - Tells if system-power-controller is found for device_node + * @np: Pointer to the given device_node + * +- * return true if present false otherwise ++ * Return: true if present false otherwise + */ + static inline bool of_device_is_system_power_controller(const struct device_node *np) + { diff --git a/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch b/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch new file mode 100644 index 0000000000..64197d7482 --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch @@ -0,0 +1,54 @@ +From 31e46db02ac1351c84e56a18606d17fc1b8390dd Mon Sep 17 00:00:00 2001 +From: Lee Jones +Date: Mon, 29 Mar 2021 16:24:35 +0100 +Subject: [PATCH] of: base: Fix spelling issue with function param 'prop' + +Fixes the following W=1 kernel build warning(s): + + drivers/of/base.c:1781: warning: Function parameter or member 'prop' not described in '__of_add_property' + drivers/of/base.c:1781: warning: Excess function parameter 'prob' description in '__of_add_property' + drivers/of/base.c:1804: warning: Function parameter or member 'prop' not described in 'of_add_property' + drivers/of/base.c:1804: warning: Excess function parameter 'prob' description in 'of_add_property' + drivers/of/base.c:1855: warning: Function parameter or member 'prop' not described in 'of_remove_property' + drivers/of/base.c:1855: warning: Excess function parameter 'prob' description in 'of_remove_property' + +Cc: Rob Herring +Cc: Frank Rowand +Cc: "David S. Miller" +Cc: devicetree@vger.kernel.org +Signed-off-by: Lee Jones +Link: https://lore.kernel.org/r/20210329152435.900225-1-lee.jones@linaro.org +Signed-off-by: Rob Herring +--- + drivers/of/base.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1780,7 +1780,7 @@ EXPORT_SYMBOL(of_count_phandle_with_args + /** + * __of_add_property - Add a property to a node without lock operations + * @np: Caller's Device Node +- * @prob: Property to add ++ * @prop: Property to add + */ + int __of_add_property(struct device_node *np, struct property *prop) + { +@@ -1803,7 +1803,7 @@ int __of_add_property(struct device_node + /** + * of_add_property - Add a property to a node + * @np: Caller's Device Node +- * @prob: Property to add ++ * @prop: Property to add + */ + int of_add_property(struct device_node *np, struct property *prop) + { +@@ -1849,7 +1849,7 @@ int __of_remove_property(struct device_n + /** + * of_remove_property - Remove a property from a node. + * @np: Caller's Device Node +- * @prob: Property to remove ++ * @prop: Property to remove + * + * Note that we don't actually remove it, since we have given out + * who-knows-how-many pointers to the data using get-property. diff --git a/target/linux/generic/backport-5.10/732-v5.13-0008-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch b/target/linux/generic/backport-5.10/732-v5.13-0008-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch new file mode 100644 index 0000000000..ae46508aeb --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0008-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch @@ -0,0 +1,1935 @@ +From 83216e3988cd196183542937c9bd58b279f946af Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Mon, 12 Apr 2021 19:47:17 +0200 +Subject: [PATCH] of: net: pass the dst buffer to of_get_mac_address() + +of_get_mac_address() returns a "const void*" pointer to a MAC address. +Lately, support to fetch the MAC address by an NVMEM provider was added. +But this will only work with platform devices. It will not work with +PCI devices (e.g. of an integrated root complex) and esp. not with DSA +ports. + +There is an of_* variant of the nvmem binding which works without +devices. The returned data of a nvmem_cell_read() has to be freed after +use. On the other hand the return of_get_mac_address() points to some +static data without a lifetime. The trick for now, was to allocate a +device resource managed buffer which is then returned. This will only +work if we have an actual device. + +Change it, so that the caller of of_get_mac_address() has to supply a +buffer where the MAC address is written to. Unfortunately, this will +touch all drivers which use the of_get_mac_address(). + +Usually the code looks like: + + const char *addr; + addr = of_get_mac_address(np); + if (!IS_ERR(addr)) + ether_addr_copy(ndev->dev_addr, addr); + +This can then be simply rewritten as: + + of_get_mac_address(np, ndev->dev_addr); + +Sometimes is_valid_ether_addr() is used to test the MAC address. +of_get_mac_address() already makes sure, it just returns a valid MAC +address. Thus we can just test its return code. But we have to be +careful if there are still other sources for the MAC address before the +of_get_mac_address(). In this case we have to keep the +is_valid_ether_addr() call. + +The following coccinelle patch was used to convert common cases to the +new style. Afterwards, I've manually gone over the drivers and fixed the +return code variable: either used a new one or if one was already +available use that. Mansour Moufid, thanks for that coccinelle patch! + + +@a@ +identifier x; +expression y, z; +@@ +- x = of_get_mac_address(y); ++ x = of_get_mac_address(y, z); + <... +- ether_addr_copy(z, x); + ...> + +@@ +identifier a.x; +@@ +- if (<+... x ...+>) {} + +@@ +identifier a.x; +@@ + if (<+... x ...+>) { + ... + } +- else {} + +@@ +identifier a.x; +expression e; +@@ +- if (<+... x ...+>@e) +- {} +- else ++ if (!(e)) + {...} + +@@ +expression x, y, z; +@@ +- x = of_get_mac_address(y, z); ++ of_get_mac_address(y, z); + ... when != x + + +All drivers, except drivers/net/ethernet/aeroflex/greth.c, were +compile-time tested. + +Suggested-by: Andrew Lunn +Signed-off-by: Michael Walle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + arch/arm/mach-mvebu/kirkwood.c | 3 +- + arch/powerpc/sysdev/tsi108_dev.c | 5 +- + drivers/net/ethernet/aeroflex/greth.c | 6 +-- + drivers/net/ethernet/allwinner/sun4i-emac.c | 10 ++-- + drivers/net/ethernet/altera/altera_tse_main.c | 7 +-- + drivers/net/ethernet/arc/emac_main.c | 8 +-- + drivers/net/ethernet/atheros/ag71xx.c | 7 +-- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 7 +-- + drivers/net/ethernet/broadcom/bcmsysport.c | 7 +-- + drivers/net/ethernet/broadcom/bgmac-bcma.c | 10 ++-- + drivers/net/ethernet/broadcom/bgmac-platform.c | 11 ++-- + drivers/net/ethernet/cadence/macb_main.c | 11 ++-- + drivers/net/ethernet/cavium/octeon/octeon_mgmt.c | 8 +-- + drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 5 +- + drivers/net/ethernet/davicom/dm9000.c | 10 ++-- + drivers/net/ethernet/ethoc.c | 6 +-- + drivers/net/ethernet/ezchip/nps_enet.c | 7 +-- + drivers/net/ethernet/freescale/fec_main.c | 7 +-- + drivers/net/ethernet/freescale/fec_mpc52xx.c | 7 +-- + drivers/net/ethernet/freescale/fman/mac.c | 9 ++-- + .../net/ethernet/freescale/fs_enet/fs_enet-main.c | 5 +- + drivers/net/ethernet/freescale/gianfar.c | 8 +-- + drivers/net/ethernet/freescale/ucc_geth.c | 5 +- + drivers/net/ethernet/hisilicon/hisi_femac.c | 7 +-- + drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 7 +-- + drivers/net/ethernet/lantiq_xrx200.c | 7 +-- + drivers/net/ethernet/marvell/mv643xx_eth.c | 5 +- + drivers/net/ethernet/marvell/mvneta.c | 6 +-- + .../net/ethernet/marvell/prestera/prestera_main.c | 11 ++-- + drivers/net/ethernet/marvell/pxa168_eth.c | 9 +--- + drivers/net/ethernet/marvell/sky2.c | 8 ++- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 11 ++-- + drivers/net/ethernet/micrel/ks8851_common.c | 7 ++- + drivers/net/ethernet/microchip/lan743x_main.c | 5 +- + drivers/net/ethernet/nxp/lpc_eth.c | 4 +- + drivers/net/ethernet/qualcomm/qca_spi.c | 10 ++-- + drivers/net/ethernet/qualcomm/qca_uart.c | 9 +--- + drivers/net/ethernet/renesas/ravb_main.c | 12 +++-- + drivers/net/ethernet/renesas/sh_eth.c | 5 +- + .../net/ethernet/samsung/sxgbe/sxgbe_platform.c | 13 ++--- + drivers/net/ethernet/socionext/sni_ave.c | 10 ++-- + .../net/ethernet/stmicro/stmmac/dwmac-anarion.c | 2 +- + .../ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-generic.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-intel-plat.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-meson8b.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c | 2 +- + .../ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 2 +- + .../net/ethernet/stmicro/stmmac/dwmac-visconti.c | 2 +- + drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 +- + drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- + .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 14 ++--- + .../net/ethernet/stmicro/stmmac/stmmac_platform.h | 2 +- + drivers/net/ethernet/ti/am65-cpsw-nuss.c | 19 ++++--- + drivers/net/ethernet/ti/cpsw.c | 7 +-- + drivers/net/ethernet/ti/cpsw_new.c | 7 +-- + drivers/net/ethernet/ti/davinci_emac.c | 8 +-- + drivers/net/ethernet/ti/netcp_core.c | 7 +-- + drivers/net/ethernet/wiznet/w5100-spi.c | 8 ++- + drivers/net/ethernet/wiznet/w5100.c | 2 +- + drivers/net/ethernet/xilinx/ll_temac_main.c | 8 +-- + drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 15 +++--- + drivers/net/ethernet/xilinx/xilinx_emaclite.c | 8 +-- + drivers/net/wireless/ath/ath9k/init.c | 5 +- + drivers/net/wireless/mediatek/mt76/eeprom.c | 9 +--- + drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 6 +-- + drivers/of/of_net.c | 60 ++++++++++------------ + drivers/staging/octeon/ethernet.c | 10 ++-- + drivers/staging/wfx/main.c | 7 ++- + include/linux/of_net.h | 6 +-- + include/net/dsa.h | 2 +- + net/dsa/dsa2.c | 2 +- + net/dsa/slave.c | 2 +- + net/ethernet/eth.c | 11 ++-- + 85 files changed, 218 insertions(+), 364 deletions(-) + +--- a/arch/arm/mach-mvebu/kirkwood.c ++++ b/arch/arm/mach-mvebu/kirkwood.c +@@ -84,6 +84,7 @@ static void __init kirkwood_dt_eth_fixup + struct device_node *pnp = of_get_parent(np); + struct clk *clk; + struct property *pmac; ++ u8 tmpmac[ETH_ALEN]; + void __iomem *io; + u8 *macaddr; + u32 reg; +@@ -93,7 +94,7 @@ static void __init kirkwood_dt_eth_fixup + + /* skip disabled nodes or nodes with valid MAC address*/ + if (!of_device_is_available(pnp) || +- !IS_ERR(of_get_mac_address(np))) ++ !of_get_mac_address(np, tmpmac)) + goto eth_fixup_skip; + + clk = of_clk_get(pnp, 0); +--- a/arch/powerpc/sysdev/tsi108_dev.c ++++ b/arch/powerpc/sysdev/tsi108_dev.c +@@ -73,7 +73,6 @@ static int __init tsi108_eth_of_init(voi + struct device_node *phy, *mdio; + hw_info tsi_eth_data; + const unsigned int *phy_id; +- const void *mac_addr; + const phandle *ph; + + memset(r, 0, sizeof(r)); +@@ -101,9 +100,7 @@ static int __init tsi108_eth_of_init(voi + goto err; + } + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(tsi_eth_data.mac_addr, mac_addr); ++ of_get_mac_address(np, tsi_eth_data.mac_addr); + + ph = of_get_property(np, "mdio-handle", NULL); + mdio = of_find_node_by_phandle(*ph); +--- a/drivers/net/ethernet/aeroflex/greth.c ++++ b/drivers/net/ethernet/aeroflex/greth.c +@@ -1450,10 +1450,10 @@ static int greth_of_probe(struct platfor + break; + } + if (i == 6) { +- const u8 *addr; ++ u8 addr[ETH_ALEN]; + +- addr = of_get_mac_address(ofdev->dev.of_node); +- if (!IS_ERR(addr)) { ++ err = of_get_mac_address(ofdev->dev.of_node, addr); ++ if (!err) { + for (i = 0; i < 6; i++) + macaddr[i] = (unsigned int) addr[i]; + } else { +--- a/drivers/net/ethernet/allwinner/sun4i-emac.c ++++ b/drivers/net/ethernet/allwinner/sun4i-emac.c +@@ -790,7 +790,6 @@ static int emac_probe(struct platform_de + struct emac_board_info *db; + struct net_device *ndev; + int ret = 0; +- const char *mac_addr; + + ndev = alloc_etherdev(sizeof(struct emac_board_info)); + if (!ndev) { +@@ -853,12 +852,9 @@ static int emac_probe(struct platform_de + } + + /* Read MAC-address from DT */ +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- +- /* Check if the MAC address is valid, if not get a random one */ +- if (!is_valid_ether_addr(ndev->dev_addr)) { ++ ret = of_get_mac_address(np, ndev->dev_addr); ++ if (ret) { ++ /* if the MAC address is invalid get a random one */ + eth_hw_addr_random(ndev); + dev_warn(&pdev->dev, "using random MAC address %pM\n", + ndev->dev_addr); +--- a/drivers/net/ethernet/altera/altera_tse_main.c ++++ b/drivers/net/ethernet/altera/altera_tse_main.c +@@ -1355,7 +1355,6 @@ static int altera_tse_probe(struct platf + struct resource *control_port; + struct resource *dma_res; + struct altera_tse_private *priv; +- const unsigned char *macaddr; + void __iomem *descmap; + const struct of_device_id *of_id = NULL; + +@@ -1532,10 +1531,8 @@ static int altera_tse_probe(struct platf + priv->rx_dma_buf_sz = ALTERA_RXDMABUFFER_SIZE; + + /* get default MAC address from device tree */ +- macaddr = of_get_mac_address(pdev->dev.of_node); +- if (!IS_ERR(macaddr)) +- ether_addr_copy(ndev->dev_addr, macaddr); +- else ++ ret = of_get_mac_address(pdev->dev.of_node, ndev->dev_addr); ++ if (ret) + eth_hw_addr_random(ndev); + + /* get phy addr and create mdio */ +--- a/drivers/net/ethernet/arc/emac_main.c ++++ b/drivers/net/ethernet/arc/emac_main.c +@@ -857,7 +857,6 @@ int arc_emac_probe(struct net_device *nd + struct device_node *phy_node; + struct phy_device *phydev = NULL; + struct arc_emac_priv *priv; +- const char *mac_addr; + unsigned int id, clock_frequency, irq; + int err; + +@@ -942,11 +941,8 @@ int arc_emac_probe(struct net_device *nd + } + + /* Get MAC address from device tree */ +- mac_addr = of_get_mac_address(dev->of_node); +- +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- else ++ err = of_get_mac_address(dev->of_node, ndev->dev_addr); ++ if (err) + eth_hw_addr_random(ndev); + + arc_emac_set_address_internal(ndev); +--- a/drivers/net/ethernet/atheros/ag71xx.c ++++ b/drivers/net/ethernet/atheros/ag71xx.c +@@ -1857,7 +1857,6 @@ static int ag71xx_probe(struct platform_ + const struct ag71xx_dcfg *dcfg; + struct net_device *ndev; + struct resource *res; +- const void *mac_addr; + int tx_size, err, i; + struct ag71xx *ag; + +@@ -1953,10 +1952,8 @@ static int ag71xx_probe(struct platform_ + ag->stop_desc->ctrl = 0; + ag->stop_desc->next = (u32)ag->stop_desc_dma; + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- memcpy(ndev->dev_addr, mac_addr, ETH_ALEN); +- if (IS_ERR(mac_addr) || !is_valid_ether_addr(ndev->dev_addr)) { ++ err = of_get_mac_address(np, ndev->dev_addr); ++ if (err) { + netif_err(ag, probe, ndev, "invalid MAC address, using random address\n"); + eth_random_addr(ndev->dev_addr); + } +--- a/drivers/net/ethernet/broadcom/bcmsysport.c ++++ b/drivers/net/ethernet/broadcom/bcmsysport.c +@@ -2468,7 +2468,6 @@ static int bcm_sysport_probe(struct plat + struct bcm_sysport_priv *priv; + struct device_node *dn; + struct net_device *dev; +- const void *macaddr; + u32 txq, rxq; + int ret; + +@@ -2563,12 +2562,10 @@ static int bcm_sysport_probe(struct plat + } + + /* Initialize netdevice members */ +- macaddr = of_get_mac_address(dn); +- if (IS_ERR(macaddr)) { ++ ret = of_get_mac_address(dn, dev->dev_addr); ++ if (ret) { + dev_warn(&pdev->dev, "using random Ethernet MAC\n"); + eth_hw_addr_random(dev); +- } else { +- ether_addr_copy(dev->dev_addr, macaddr); + } + + SET_NETDEV_DEV(dev, &pdev->dev); +--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c ++++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c +@@ -115,7 +115,7 @@ static int bgmac_probe(struct bcma_devic + struct ssb_sprom *sprom = &core->bus->sprom; + struct mii_bus *mii_bus; + struct bgmac *bgmac; +- const u8 *mac = NULL; ++ const u8 *mac; + int err; + + bgmac = bgmac_alloc(&core->dev); +@@ -128,11 +128,10 @@ static int bgmac_probe(struct bcma_devic + + bcma_set_drvdata(core, bgmac); + +- if (bgmac->dev->of_node) +- mac = of_get_mac_address(bgmac->dev->of_node); ++ err = of_get_mac_address(bgmac->dev->of_node, bgmac->net_dev->dev_addr); + + /* If no MAC address assigned via device tree, check SPROM */ +- if (IS_ERR_OR_NULL(mac)) { ++ if (err) { + switch (core->core_unit) { + case 0: + mac = sprom->et0mac; +@@ -149,10 +148,9 @@ static int bgmac_probe(struct bcma_devic + err = -ENOTSUPP; + goto err; + } ++ ether_addr_copy(bgmac->net_dev->dev_addr, mac); + } + +- ether_addr_copy(bgmac->net_dev->dev_addr, mac); +- + /* On BCM4706 we need common core to access PHY */ + if (core->id.id == BCMA_CORE_4706_MAC_GBIT && + !core->bus->drv_gmac_cmn.core) { +--- a/drivers/net/ethernet/broadcom/bgmac-platform.c ++++ b/drivers/net/ethernet/broadcom/bgmac-platform.c +@@ -173,7 +173,7 @@ static int bgmac_probe(struct platform_d + struct device_node *np = pdev->dev.of_node; + struct bgmac *bgmac; + struct resource *regs; +- const u8 *mac_addr; ++ int ret; + + bgmac = bgmac_alloc(&pdev->dev); + if (!bgmac) +@@ -192,11 +192,10 @@ static int bgmac_probe(struct platform_d + bgmac->dev = &pdev->dev; + bgmac->dma_dev = &pdev->dev; + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(bgmac->net_dev->dev_addr, mac_addr); +- else +- dev_warn(&pdev->dev, "MAC address not present in device tree\n"); ++ ret = of_get_mac_address(np, bgmac->net_dev->dev_addr); ++ if (ret) ++ dev_warn(&pdev->dev, ++ "MAC address not present in device tree\n"); + + bgmac->irq = platform_get_irq(pdev, 0); + if (bgmac->irq < 0) +--- a/drivers/net/ethernet/cadence/macb_main.c ++++ b/drivers/net/ethernet/cadence/macb_main.c +@@ -4487,7 +4487,6 @@ static int macb_probe(struct platform_de + struct net_device *dev; + struct resource *regs; + void __iomem *mem; +- const char *mac; + struct macb *bp; + int err, val; + +@@ -4600,15 +4599,11 @@ static int macb_probe(struct platform_de + if (bp->caps & MACB_CAPS_NEEDS_RSTONUBR) + bp->rx_intr_mask |= MACB_BIT(RXUBR); + +- mac = of_get_mac_address(np); +- if (PTR_ERR(mac) == -EPROBE_DEFER) { +- err = -EPROBE_DEFER; ++ err = of_get_mac_address(np, bp->dev->dev_addr); ++ if (err == -EPROBE_DEFER) + goto err_out_free_netdev; +- } else if (!IS_ERR_OR_NULL(mac)) { +- ether_addr_copy(bp->dev->dev_addr, mac); +- } else { ++ else if (err) + macb_get_hwaddr(bp); +- } + + err = of_get_phy_mode(np, &interface); + if (err) +--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c ++++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c +@@ -1385,7 +1385,6 @@ static int octeon_mgmt_probe(struct plat + struct net_device *netdev; + struct octeon_mgmt *p; + const __be32 *data; +- const u8 *mac; + struct resource *res_mix; + struct resource *res_agl; + struct resource *res_agl_prt_ctl; +@@ -1502,11 +1501,8 @@ static int octeon_mgmt_probe(struct plat + netdev->min_mtu = 64 - OCTEON_MGMT_RX_HEADROOM; + netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM - VLAN_HLEN; + +- mac = of_get_mac_address(pdev->dev.of_node); +- +- if (!IS_ERR(mac)) +- ether_addr_copy(netdev->dev_addr, mac); +- else ++ result = of_get_mac_address(pdev->dev.of_node, netdev->dev_addr); ++ if (result) + eth_hw_addr_random(netdev); + + p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0); +--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c ++++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +@@ -1476,7 +1476,6 @@ static int bgx_init_of_phy(struct bgx *b + device_for_each_child_node(&bgx->pdev->dev, fwn) { + struct phy_device *pd; + struct device_node *phy_np; +- const char *mac; + + /* Should always be an OF node. But if it is not, we + * cannot handle it, so exit the loop. +@@ -1485,9 +1484,7 @@ static int bgx_init_of_phy(struct bgx *b + if (!node) + break; + +- mac = of_get_mac_address(node); +- if (!IS_ERR(mac)) +- ether_addr_copy(bgx->lmac[lmac].mac, mac); ++ of_get_mac_address(node, bgx->lmac[lmac].mac); + + SET_NETDEV_DEV(&bgx->lmac[lmac].netdev, &bgx->pdev->dev); + bgx->lmac[lmac].lmacid = lmac; +--- a/drivers/net/ethernet/davicom/dm9000.c ++++ b/drivers/net/ethernet/davicom/dm9000.c +@@ -1388,7 +1388,7 @@ static struct dm9000_plat_data *dm9000_p + { + struct dm9000_plat_data *pdata; + struct device_node *np = dev->of_node; +- const void *mac_addr; ++ int ret; + + if (!IS_ENABLED(CONFIG_OF) || !np) + return ERR_PTR(-ENXIO); +@@ -1402,11 +1402,9 @@ static struct dm9000_plat_data *dm9000_p + if (of_find_property(np, "davicom,no-eeprom", NULL)) + pdata->flags |= DM9000_PLATF_NO_EEPROM; + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(pdata->dev_addr, mac_addr); +- else if (PTR_ERR(mac_addr) == -EPROBE_DEFER) +- return ERR_CAST(mac_addr); ++ ret = of_get_mac_address(np, pdata->dev_addr); ++ if (ret == -EPROBE_DEFER) ++ return ERR_PTR(ret); + + return pdata; + } +--- a/drivers/net/ethernet/ethoc.c ++++ b/drivers/net/ethernet/ethoc.c +@@ -1151,11 +1151,7 @@ static int ethoc_probe(struct platform_d + ether_addr_copy(netdev->dev_addr, pdata->hwaddr); + priv->phy_id = pdata->phy_id; + } else { +- const void *mac; +- +- mac = of_get_mac_address(pdev->dev.of_node); +- if (!IS_ERR(mac)) +- ether_addr_copy(netdev->dev_addr, mac); ++ of_get_mac_address(pdev->dev.of_node, netdev->dev_addr); + priv->phy_id = -1; + } + +--- a/drivers/net/ethernet/ezchip/nps_enet.c ++++ b/drivers/net/ethernet/ezchip/nps_enet.c +@@ -575,7 +575,6 @@ static s32 nps_enet_probe(struct platfor + struct net_device *ndev; + struct nps_enet_priv *priv; + s32 err = 0; +- const char *mac_addr; + + if (!dev->of_node) + return -ENODEV; +@@ -602,10 +601,8 @@ static s32 nps_enet_probe(struct platfor + dev_dbg(dev, "Registers base address is 0x%p\n", priv->regs_base); + + /* set kernel MAC address to dev */ +- mac_addr = of_get_mac_address(dev->of_node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- else ++ err = of_get_mac_address(dev->of_node, ndev->dev_addr); ++ if (err) + eth_hw_addr_random(ndev); + + /* Get IRQ number */ +--- a/drivers/net/ethernet/freescale/fec_main.c ++++ b/drivers/net/ethernet/freescale/fec_main.c +@@ -1666,6 +1666,7 @@ static void fec_get_mac(struct net_devic + struct fec_enet_private *fep = netdev_priv(ndev); + struct fec_platform_data *pdata = dev_get_platdata(&fep->pdev->dev); + unsigned char *iap, tmpaddr[ETH_ALEN]; ++ int ret; + + /* + * try to get mac address in following order: +@@ -1681,9 +1682,9 @@ static void fec_get_mac(struct net_devic + if (!is_valid_ether_addr(iap)) { + struct device_node *np = fep->pdev->dev.of_node; + if (np) { +- const char *mac = of_get_mac_address(np); +- if (!IS_ERR(mac)) +- iap = (unsigned char *) mac; ++ ret = of_get_mac_address(np, tmpaddr); ++ if (!ret) ++ iap = tmpaddr; + } + } + +--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c ++++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c +@@ -813,7 +813,6 @@ static int mpc52xx_fec_probe(struct plat + const u32 *prop; + int prop_size; + struct device_node *np = op->dev.of_node; +- const char *mac_addr; + + phys_addr_t rx_fifo; + phys_addr_t tx_fifo; +@@ -891,10 +890,8 @@ static int mpc52xx_fec_probe(struct plat + * + * First try to read MAC address from DT + */ +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(ndev->dev_addr, mac_addr); +- } else { ++ rv = of_get_mac_address(np, ndev->dev_addr); ++ if (rv) { + struct mpc52xx_fec __iomem *fec = priv->fec; + + /* +--- a/drivers/net/ethernet/freescale/fman/mac.c ++++ b/drivers/net/ethernet/freescale/fman/mac.c +@@ -616,7 +616,6 @@ static int mac_probe(struct platform_dev + struct platform_device *of_dev; + struct resource res; + struct mac_priv_s *priv; +- const u8 *mac_addr; + u32 val; + u8 fman_id; + phy_interface_t phy_if; +@@ -734,11 +733,9 @@ static int mac_probe(struct platform_dev + priv->cell_index = (u8)val; + + /* Get the MAC address */ +- mac_addr = of_get_mac_address(mac_node); +- if (IS_ERR(mac_addr)) ++ err = of_get_mac_address(mac_node, mac_dev->addr); ++ if (err) + dev_warn(dev, "of_get_mac_address(%pOF) failed\n", mac_node); +- else +- ether_addr_copy(mac_dev->addr, mac_addr); + + /* Get the port handles */ + nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL); +@@ -864,7 +861,7 @@ static int mac_probe(struct platform_dev + if (err < 0) + dev_err(dev, "fman_set_mac_active_pause() = %d\n", err); + +- if (!IS_ERR(mac_addr)) ++ if (!is_zero_ether_addr(mac_dev->addr)) + dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr); + + priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev); +--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c ++++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c +@@ -918,7 +918,6 @@ static int fs_enet_probe(struct platform + const u32 *data; + struct clk *clk; + int err; +- const u8 *mac_addr; + const char *phy_connection_type; + int privsize, len, ret = -ENODEV; + +@@ -1006,9 +1005,7 @@ static int fs_enet_probe(struct platform + spin_lock_init(&fep->lock); + spin_lock_init(&fep->tx_lock); + +- mac_addr = of_get_mac_address(ofdev->dev.of_node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); ++ of_get_mac_address(ofdev->dev.of_node, ndev->dev_addr); + + ret = fep->ops->allocate_bd(ndev); + if (ret) +--- a/drivers/net/ethernet/freescale/gianfar.c ++++ b/drivers/net/ethernet/freescale/gianfar.c +@@ -641,7 +641,6 @@ static phy_interface_t gfar_get_interfac + static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) + { + const char *model; +- const void *mac_addr; + int err = 0, i; + phy_interface_t interface; + struct net_device *dev = NULL; +@@ -783,11 +782,8 @@ static int gfar_of_init(struct platform_ + if (stash_len || stash_idx) + priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING; + +- mac_addr = of_get_mac_address(np); +- +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(dev->dev_addr, mac_addr); +- } else { ++ err = of_get_mac_address(np, dev->dev_addr); ++ if (err) { + eth_hw_addr_random(dev); + dev_info(&ofdev->dev, "Using random MAC address: %pM\n", dev->dev_addr); + } +--- a/drivers/net/ethernet/freescale/ucc_geth.c ++++ b/drivers/net/ethernet/freescale/ucc_geth.c +@@ -3696,7 +3696,6 @@ static int ucc_geth_probe(struct platfor + int err, ucc_num, max_speed = 0; + const unsigned int *prop; + const char *sprop; +- const void *mac_addr; + phy_interface_t phy_interface; + static const int enet_to_speed[] = { + SPEED_10, SPEED_10, SPEED_10, +@@ -3906,9 +3905,7 @@ static int ucc_geth_probe(struct platfor + goto err_free_netdev; + } + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(dev->dev_addr, mac_addr); ++ of_get_mac_address(np, dev->dev_addr); + + ugeth->ug_info = ug_info; + ugeth->dev = device; +--- a/drivers/net/ethernet/hisilicon/hisi_femac.c ++++ b/drivers/net/ethernet/hisilicon/hisi_femac.c +@@ -772,7 +772,6 @@ static int hisi_femac_drv_probe(struct p + struct net_device *ndev; + struct hisi_femac_priv *priv; + struct phy_device *phy; +- const char *mac_addr; + int ret; + + ndev = alloc_etherdev(sizeof(*priv)); +@@ -842,10 +841,8 @@ static int hisi_femac_drv_probe(struct p + (unsigned long)phy->phy_id, + phy_modes(phy->interface)); + +- mac_addr = of_get_mac_address(node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- if (!is_valid_ether_addr(ndev->dev_addr)) { ++ ret = of_get_mac_address(node, ndev->dev_addr); ++ if (ret) { + eth_hw_addr_random(ndev); + dev_warn(dev, "using random MAC address %pM\n", + ndev->dev_addr); +--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c ++++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c +@@ -1098,7 +1098,6 @@ static int hix5hd2_dev_probe(struct plat + struct net_device *ndev; + struct hix5hd2_priv *priv; + struct mii_bus *bus; +- const char *mac_addr; + int ret; + + ndev = alloc_etherdev(sizeof(struct hix5hd2_priv)); +@@ -1220,10 +1219,8 @@ static int hix5hd2_dev_probe(struct plat + goto out_phy_node; + } + +- mac_addr = of_get_mac_address(node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- if (!is_valid_ether_addr(ndev->dev_addr)) { ++ ret = of_get_mac_address(node, ndev->dev_addr); ++ if (ret) { + eth_hw_addr_random(ndev); + netdev_warn(ndev, "using random MAC address %pM\n", + ndev->dev_addr); +--- a/drivers/net/ethernet/lantiq_xrx200.c ++++ b/drivers/net/ethernet/lantiq_xrx200.c +@@ -440,7 +440,6 @@ static int xrx200_probe(struct platform_ + struct resource *res; + struct xrx200_priv *priv; + struct net_device *net_dev; +- const u8 *mac; + int err; + + /* alloc the network device */ +@@ -484,10 +483,8 @@ static int xrx200_probe(struct platform_ + return PTR_ERR(priv->clk); + } + +- mac = of_get_mac_address(np); +- if (!IS_ERR(mac)) +- ether_addr_copy(net_dev->dev_addr, mac); +- else ++ err = of_get_mac_address(np, net_dev->dev_addr); ++ if (err) + eth_hw_addr_random(net_dev); + + /* bring up the dma engine and IP core */ +--- a/drivers/net/ethernet/marvell/mv643xx_eth.c ++++ b/drivers/net/ethernet/marvell/mv643xx_eth.c +@@ -2701,7 +2701,6 @@ static int mv643xx_eth_shared_of_add_por + struct platform_device *ppdev; + struct mv643xx_eth_platform_data ppd; + struct resource res; +- const char *mac_addr; + int ret; + int dev_num = 0; + +@@ -2732,9 +2731,7 @@ static int mv643xx_eth_shared_of_add_por + return -EINVAL; + } + +- mac_addr = of_get_mac_address(pnp); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ppd.mac_addr, mac_addr); ++ of_get_mac_address(pnp, ppd.mac_addr); + + mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size); + mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr); +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -5062,7 +5062,6 @@ static int mvneta_probe(struct platform_ + struct net_device *dev; + struct phylink *phylink; + struct phy *comphy; +- const char *dt_mac_addr; + char hw_mac_addr[ETH_ALEN]; + phy_interface_t phy_mode; + const char *mac_from; +@@ -5158,10 +5157,9 @@ static int mvneta_probe(struct platform_ + goto err_free_ports; + } + +- dt_mac_addr = of_get_mac_address(dn); +- if (!IS_ERR(dt_mac_addr)) { ++ err = of_get_mac_address(dn, dev->dev_addr); ++ if (!err) { + mac_from = "device tree"; +- ether_addr_copy(dev->dev_addr, dt_mac_addr); + } else { + mvneta_get_mac_addr(pp, hw_mac_addr); + if (is_valid_ether_addr(hw_mac_addr)) { +--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c ++++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c +@@ -466,20 +466,17 @@ static int prestera_switch_set_base_mac_ + { + struct device_node *base_mac_np; + struct device_node *np; +- const char *base_mac; ++ int ret; + + np = of_find_compatible_node(NULL, NULL, "marvell,prestera"); + base_mac_np = of_parse_phandle(np, "base-mac-provider", 0); + +- base_mac = of_get_mac_address(base_mac_np); +- of_node_put(base_mac_np); +- if (!IS_ERR(base_mac)) +- ether_addr_copy(sw->base_mac, base_mac); +- +- if (!is_valid_ether_addr(sw->base_mac)) { ++ ret = of_get_mac_address(base_mac_np, sw->base_mac); ++ if (ret) { + eth_random_addr(sw->base_mac); + dev_info(prestera_dev(sw), "using random base mac address\n"); + } ++ of_node_put(base_mac_np); + + return prestera_hw_switch_mac_set(sw, sw->base_mac); + } +--- a/drivers/net/ethernet/marvell/pxa168_eth.c ++++ b/drivers/net/ethernet/marvell/pxa168_eth.c +@@ -1392,7 +1392,6 @@ static int pxa168_eth_probe(struct platf + struct resource *res; + struct clk *clk; + struct device_node *np; +- const unsigned char *mac_addr = NULL; + int err; + + printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n"); +@@ -1435,12 +1434,8 @@ static int pxa168_eth_probe(struct platf + + INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task); + +- if (pdev->dev.of_node) +- mac_addr = of_get_mac_address(pdev->dev.of_node); +- +- if (!IS_ERR_OR_NULL(mac_addr)) { +- ether_addr_copy(dev->dev_addr, mac_addr); +- } else { ++ err = of_get_mac_address(pdev->dev.of_node, dev->dev_addr); ++ if (err) { + /* try reading the mac address, if set by the bootloader */ + pxa168_eth_get_mac_address(dev, dev->dev_addr); + if (!is_valid_ether_addr(dev->dev_addr)) { +--- a/drivers/net/ethernet/marvell/sky2.c ++++ b/drivers/net/ethernet/marvell/sky2.c +@@ -4725,7 +4725,7 @@ static struct net_device *sky2_init_netd + { + struct sky2_port *sky2; + struct net_device *dev = alloc_etherdev(sizeof(*sky2)); +- const void *iap; ++ int ret; + + if (!dev) + return NULL; +@@ -4795,10 +4795,8 @@ static struct net_device *sky2_init_netd + * 1) from device tree data + * 2) from internal registers set by bootloader + */ +- iap = of_get_mac_address(hw->pdev->dev.of_node); +- if (!IS_ERR(iap)) +- ether_addr_copy(dev->dev_addr, iap); +- else ++ ret = of_get_mac_address(hw->pdev->dev.of_node, dev->dev_addr); ++ if (ret) + memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, + ETH_ALEN); + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -2604,14 +2604,11 @@ static int __init mtk_init(struct net_de + { + struct mtk_mac *mac = netdev_priv(dev); + struct mtk_eth *eth = mac->hw; +- const char *mac_addr; ++ int ret; + +- mac_addr = of_get_mac_address(mac->of_node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(dev->dev_addr, mac_addr); +- +- /* If the mac address is invalid, use random mac address */ +- if (!is_valid_ether_addr(dev->dev_addr)) { ++ ret = of_get_mac_address(mac->of_node, dev->dev_addr); ++ if (ret) { ++ /* If the mac address is invalid, use random mac address */ + eth_hw_addr_random(dev); + dev_err(eth->dev, "generated random MAC address %pM\n", + dev->dev_addr); +--- a/drivers/net/ethernet/micrel/ks8851_common.c ++++ b/drivers/net/ethernet/micrel/ks8851_common.c +@@ -194,11 +194,10 @@ static void ks8851_read_mac_addr(struct + static void ks8851_init_mac(struct ks8851_net *ks, struct device_node *np) + { + struct net_device *dev = ks->netdev; +- const u8 *mac_addr; ++ int ret; + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(dev->dev_addr, mac_addr); ++ ret = of_get_mac_address(np, dev->dev_addr); ++ if (!ret) { + ks8851_write_mac_addr(dev); + return; + } +--- a/drivers/net/ethernet/microchip/lan743x_main.c ++++ b/drivers/net/ethernet/microchip/lan743x_main.c +@@ -2831,7 +2831,6 @@ static int lan743x_pcidev_probe(struct p + { + struct lan743x_adapter *adapter = NULL; + struct net_device *netdev = NULL; +- const void *mac_addr; + int ret = -ENODEV; + + netdev = devm_alloc_etherdev(&pdev->dev, +@@ -2848,9 +2847,7 @@ static int lan743x_pcidev_probe(struct p + NETIF_MSG_IFDOWN | NETIF_MSG_TX_QUEUED; + netdev->max_mtu = LAN743X_MAX_FRAME_SIZE; + +- mac_addr = of_get_mac_address(pdev->dev.of_node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(adapter->mac_address, mac_addr); ++ of_get_mac_address(pdev->dev.of_node, adapter->mac_address); + + ret = lan743x_pci_init(adapter, pdev); + if (ret) +--- a/drivers/net/ethernet/nxp/lpc_eth.c ++++ b/drivers/net/ethernet/nxp/lpc_eth.c +@@ -1347,9 +1347,7 @@ static int lpc_eth_drv_probe(struct plat + __lpc_get_mac(pldat, ndev->dev_addr); + + if (!is_valid_ether_addr(ndev->dev_addr)) { +- const char *macaddr = of_get_mac_address(np); +- if (!IS_ERR(macaddr)) +- ether_addr_copy(ndev->dev_addr, macaddr); ++ of_get_mac_address(np, ndev->dev_addr); + } + if (!is_valid_ether_addr(ndev->dev_addr)) + eth_hw_addr_random(ndev); +--- a/drivers/net/ethernet/qualcomm/qca_spi.c ++++ b/drivers/net/ethernet/qualcomm/qca_spi.c +@@ -885,7 +885,7 @@ qca_spi_probe(struct spi_device *spi) + struct net_device *qcaspi_devs = NULL; + u8 legacy_mode = 0; + u16 signature; +- const char *mac; ++ int ret; + + if (!spi->dev.of_node) { + dev_err(&spi->dev, "Missing device tree\n"); +@@ -962,12 +962,8 @@ qca_spi_probe(struct spi_device *spi) + + spi_set_drvdata(spi, qcaspi_devs); + +- mac = of_get_mac_address(spi->dev.of_node); +- +- if (!IS_ERR(mac)) +- ether_addr_copy(qca->net_dev->dev_addr, mac); +- +- if (!is_valid_ether_addr(qca->net_dev->dev_addr)) { ++ ret = of_get_mac_address(spi->dev.of_node, qca->net_dev->dev_addr); ++ if (ret) { + eth_hw_addr_random(qca->net_dev); + dev_info(&spi->dev, "Using random MAC address: %pM\n", + qca->net_dev->dev_addr); +--- a/drivers/net/ethernet/qualcomm/qca_uart.c ++++ b/drivers/net/ethernet/qualcomm/qca_uart.c +@@ -323,7 +323,6 @@ static int qca_uart_probe(struct serdev_ + { + struct net_device *qcauart_dev = alloc_etherdev(sizeof(struct qcauart)); + struct qcauart *qca; +- const char *mac; + u32 speed = 115200; + int ret; + +@@ -348,12 +347,8 @@ static int qca_uart_probe(struct serdev_ + + of_property_read_u32(serdev->dev.of_node, "current-speed", &speed); + +- mac = of_get_mac_address(serdev->dev.of_node); +- +- if (!IS_ERR(mac)) +- ether_addr_copy(qca->net_dev->dev_addr, mac); +- +- if (!is_valid_ether_addr(qca->net_dev->dev_addr)) { ++ ret = of_get_mac_address(serdev->dev.of_node, qca->net_dev->dev_addr); ++ if (ret) { + eth_hw_addr_random(qca->net_dev); + dev_info(&serdev->dev, "Using random MAC address: %pM\n", + qca->net_dev->dev_addr); +--- a/drivers/net/ethernet/renesas/ravb_main.c ++++ b/drivers/net/ethernet/renesas/ravb_main.c +@@ -109,11 +109,13 @@ static void ravb_set_buffer_align(struct + * Ethernet AVB device doesn't have ROM for MAC address. + * This function gets the MAC address that was used by a bootloader. + */ +-static void ravb_read_mac_address(struct net_device *ndev, const u8 *mac) ++static void ravb_read_mac_address(struct device_node *np, ++ struct net_device *ndev) + { +- if (!IS_ERR(mac)) { +- ether_addr_copy(ndev->dev_addr, mac); +- } else { ++ int ret; ++ ++ ret = of_get_mac_address(np, ndev->dev_addr); ++ if (ret) { + u32 mahr = ravb_read(ndev, MAHR); + u32 malr = ravb_read(ndev, MALR); + +@@ -2189,7 +2191,7 @@ static int ravb_probe(struct platform_de + priv->msg_enable = RAVB_DEF_MSG_ENABLE; + + /* Read and set MAC address */ +- ravb_read_mac_address(ndev, of_get_mac_address(np)); ++ ravb_read_mac_address(np, ndev); + if (!is_valid_ether_addr(ndev->dev_addr)) { + dev_warn(&pdev->dev, + "no valid MAC address supplied, using a random one\n"); +--- a/drivers/net/ethernet/renesas/sh_eth.c ++++ b/drivers/net/ethernet/renesas/sh_eth.c +@@ -3145,7 +3145,6 @@ static struct sh_eth_plat_data *sh_eth_p + struct device_node *np = dev->of_node; + struct sh_eth_plat_data *pdata; + phy_interface_t interface; +- const char *mac_addr; + int ret; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); +@@ -3157,9 +3156,7 @@ static struct sh_eth_plat_data *sh_eth_p + return NULL; + pdata->phy_interface = interface; + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(pdata->mac_addr, mac_addr); ++ of_get_mac_address(np, pdata->mac_addr); + + pdata->no_ether_link = + of_property_read_bool(np, "renesas,no-ether-link"); +--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c ++++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c +@@ -25,8 +25,7 @@ + + #ifdef CONFIG_OF + static int sxgbe_probe_config_dt(struct platform_device *pdev, +- struct sxgbe_plat_data *plat, +- const char **mac) ++ struct sxgbe_plat_data *plat) + { + struct device_node *np = pdev->dev.of_node; + struct sxgbe_dma_cfg *dma_cfg; +@@ -35,7 +34,6 @@ static int sxgbe_probe_config_dt(struct + if (!np) + return -ENODEV; + +- *mac = of_get_mac_address(np); + err = of_get_phy_mode(np, &plat->interface); + if (err && err != -ENODEV) + return err; +@@ -63,8 +61,7 @@ static int sxgbe_probe_config_dt(struct + } + #else + static int sxgbe_probe_config_dt(struct platform_device *pdev, +- struct sxgbe_plat_data *plat, +- const char **mac) ++ struct sxgbe_plat_data *plat) + { + return -ENOSYS; + } +@@ -85,7 +82,6 @@ static int sxgbe_platform_probe(struct p + void __iomem *addr; + struct sxgbe_priv_data *priv = NULL; + struct sxgbe_plat_data *plat_dat = NULL; +- const char *mac = NULL; + struct net_device *ndev = platform_get_drvdata(pdev); + struct device_node *node = dev->of_node; + +@@ -101,7 +97,7 @@ static int sxgbe_platform_probe(struct p + if (!plat_dat) + return -ENOMEM; + +- ret = sxgbe_probe_config_dt(pdev, plat_dat, &mac); ++ ret = sxgbe_probe_config_dt(pdev, plat_dat); + if (ret) { + pr_err("%s: main dt probe failed\n", __func__); + return ret; +@@ -122,8 +118,7 @@ static int sxgbe_platform_probe(struct p + } + + /* Get MAC address if available (DT) */ +- if (!IS_ERR_OR_NULL(mac)) +- ether_addr_copy(priv->dev->dev_addr, mac); ++ of_get_mac_address(node, priv->dev->dev_addr); + + /* Get the TX/RX IRQ numbers */ + for (i = 0, chan = 1; i < SXGBE_TX_QUEUES; i++) { +--- a/drivers/net/ethernet/socionext/sni_ave.c ++++ b/drivers/net/ethernet/socionext/sni_ave.c +@@ -1559,7 +1559,6 @@ static int ave_probe(struct platform_dev + struct ave_private *priv; + struct net_device *ndev; + struct device_node *np; +- const void *mac_addr; + void __iomem *base; + const char *name; + int i, irq, ret; +@@ -1600,12 +1599,9 @@ static int ave_probe(struct platform_dev + + ndev->max_mtu = AVE_MAX_ETHFRAME - (ETH_HLEN + ETH_FCS_LEN); + +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- +- /* if the mac address is invalid, use random mac address */ +- if (!is_valid_ether_addr(ndev->dev_addr)) { ++ ret = of_get_mac_address(np, ndev->dev_addr); ++ if (ret) { ++ /* if the mac address is invalid, use random mac address */ + eth_hw_addr_random(ndev); + dev_warn(dev, "Using random MAC address: %pM\n", + ndev->dev_addr); +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c +@@ -115,7 +115,7 @@ static int anarion_dwmac_probe(struct pl + if (IS_ERR(gmac)) + return PTR_ERR(gmac); + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c +@@ -445,7 +445,7 @@ static int dwc_eth_dwmac_probe(struct pl + if (IS_ERR(stmmac_res.addr)) + return PTR_ERR(stmmac_res.addr); + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c +@@ -27,7 +27,7 @@ static int dwmac_generic_probe(struct pl + return ret; + + if (pdev->dev.of_node) { +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) { + dev_err(&pdev->dev, "dt configuration failed\n"); + return PTR_ERR(plat_dat); +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c +@@ -226,7 +226,7 @@ static int imx_dwmac_probe(struct platfo + if (!dwmac) + return -ENOMEM; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c +@@ -88,7 +88,7 @@ static int intel_eth_plat_probe(struct p + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) { + dev_err(&pdev->dev, "dt configuration failed\n"); + return PTR_ERR(plat_dat); +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +@@ -255,7 +255,7 @@ static int ipq806x_gmac_probe(struct pla + if (val) + return val; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c +@@ -37,7 +37,7 @@ static int lpc18xx_dwmac_probe(struct pl + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +@@ -407,7 +407,7 @@ static int mediatek_dwmac_probe(struct p + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c +@@ -52,7 +52,7 @@ static int meson6_dwmac_probe(struct pla + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c +@@ -370,7 +370,7 @@ static int meson8b_dwmac_probe(struct pl + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c +@@ -118,7 +118,7 @@ static int oxnas_dwmac_probe(struct plat + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +@@ -461,7 +461,7 @@ static int qcom_ethqos_probe(struct plat + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) { + dev_err(&pdev->dev, "dt configuration failed\n"); + return PTR_ERR(plat_dat); +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +@@ -1392,7 +1392,7 @@ static int rk_gmac_probe(struct platform + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +@@ -397,7 +397,7 @@ static int socfpga_dwmac_probe(struct pl + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c +@@ -325,7 +325,7 @@ static int sti_dwmac_probe(struct platfo + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c +@@ -371,7 +371,7 @@ static int stm32_dwmac_probe(struct plat + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +@@ -1203,7 +1203,7 @@ static int sun8i_dwmac_probe(struct plat + if (ret) + return -EINVAL; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c +@@ -108,7 +108,7 @@ static int sun7i_gmac_probe(struct platf + if (ret) + return ret; + +- plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); ++ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h +@@ -25,7 +25,7 @@ + + struct stmmac_resources { + void __iomem *addr; +- const char *mac; ++ u8 mac[ETH_ALEN]; + int wol_irq; + int lpi_irq; + int irq; +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +@@ -5008,7 +5008,7 @@ int stmmac_dvr_probe(struct device *devi + priv->wol_irq = res->wol_irq; + priv->lpi_irq = res->lpi_irq; + +- if (!IS_ERR_OR_NULL(res->mac)) ++ if (!is_zero_ether_addr(res->mac)) + memcpy(priv->dev->dev_addr, res->mac, ETH_ALEN); + + dev_set_drvdata(device, priv->dev); +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +@@ -395,7 +395,7 @@ static int stmmac_of_get_mac_mode(struct + * set some private fields that will be used by the main at runtime. + */ + struct plat_stmmacenet_data * +-stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) ++stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) + { + struct device_node *np = pdev->dev.of_node; + struct plat_stmmacenet_data *plat; +@@ -407,12 +407,12 @@ stmmac_probe_config_dt(struct platform_d + if (!plat) + return ERR_PTR(-ENOMEM); + +- *mac = of_get_mac_address(np); +- if (IS_ERR(*mac)) { +- if (PTR_ERR(*mac) == -EPROBE_DEFER) +- return ERR_CAST(*mac); ++ rc = of_get_mac_address(np, mac); ++ if (rc) { ++ if (rc == -EPROBE_DEFER) ++ return ERR_PTR(rc); + +- *mac = NULL; ++ eth_zero_addr(mac); + } + + phy_mode = device_get_phy_mode(&pdev->dev); +@@ -643,7 +643,7 @@ void stmmac_remove_config_dt(struct plat + } + #else + struct plat_stmmacenet_data * +-stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) ++stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) + { + return ERR_PTR(-EINVAL); + } +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h +@@ -12,7 +12,7 @@ + #include "stmmac.h" + + struct plat_stmmacenet_data * +-stmmac_probe_config_dt(struct platform_device *pdev, const char **mac); ++stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac); + void stmmac_remove_config_dt(struct platform_device *pdev, + struct plat_stmmacenet_data *plat); + +--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c ++++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c +@@ -1742,7 +1742,6 @@ static int am65_cpsw_nuss_init_slave_por + + for_each_child_of_node(node, port_np) { + struct am65_cpsw_port *port; +- const void *mac_addr; + u32 port_id; + + /* it is not a slave port node, continue */ +@@ -1821,15 +1820,15 @@ static int am65_cpsw_nuss_init_slave_por + return ret; + } + +- mac_addr = of_get_mac_address(port_np); +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(port->slave.mac_addr, mac_addr); +- } else if (am65_cpsw_am654_get_efuse_macid(port_np, +- port->port_id, +- port->slave.mac_addr) || +- !is_valid_ether_addr(port->slave.mac_addr)) { +- random_ether_addr(port->slave.mac_addr); +- dev_err(dev, "Use random MAC address\n"); ++ ret = of_get_mac_address(port_np, port->slave.mac_addr); ++ if (ret) { ++ am65_cpsw_am654_get_efuse_macid(port_np, ++ port->port_id, ++ port->slave.mac_addr); ++ if (!is_valid_ether_addr(port->slave.mac_addr)) { ++ random_ether_addr(port->slave.mac_addr); ++ dev_err(dev, "Use random MAC address\n"); ++ } + } + } + of_node_put(node); +--- a/drivers/net/ethernet/ti/cpsw.c ++++ b/drivers/net/ethernet/ti/cpsw.c +@@ -1308,7 +1308,6 @@ static int cpsw_probe_dt(struct cpsw_pla + + for_each_available_child_of_node(node, slave_node) { + struct cpsw_slave_data *slave_data = data->slave_data + i; +- const void *mac_addr = NULL; + int lenp; + const __be32 *parp; + +@@ -1380,10 +1379,8 @@ static int cpsw_probe_dt(struct cpsw_pla + } + + no_phy_slave: +- mac_addr = of_get_mac_address(slave_node); +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(slave_data->mac_addr, mac_addr); +- } else { ++ ret = of_get_mac_address(slave_node, slave_data->mac_addr); ++ if (ret) { + ret = ti_cm_get_macid(&pdev->dev, i, + slave_data->mac_addr); + if (ret) +--- a/drivers/net/ethernet/ti/cpsw_new.c ++++ b/drivers/net/ethernet/ti/cpsw_new.c +@@ -1269,7 +1269,6 @@ static int cpsw_probe_dt(struct cpsw_com + + for_each_child_of_node(tmp_node, port_np) { + struct cpsw_slave_data *slave_data; +- const void *mac_addr; + u32 port_id; + + ret = of_property_read_u32(port_np, "reg", &port_id); +@@ -1328,10 +1327,8 @@ static int cpsw_probe_dt(struct cpsw_com + goto err_node_put; + } + +- mac_addr = of_get_mac_address(port_np); +- if (!IS_ERR(mac_addr)) { +- ether_addr_copy(slave_data->mac_addr, mac_addr); +- } else { ++ ret = of_get_mac_address(port_np, slave_data->mac_addr); ++ if (ret) { + ret = ti_cm_get_macid(dev, port_id - 1, + slave_data->mac_addr); + if (ret) +--- a/drivers/net/ethernet/ti/davinci_emac.c ++++ b/drivers/net/ethernet/ti/davinci_emac.c +@@ -1699,7 +1699,6 @@ davinci_emac_of_get_pdata(struct platfor + const struct of_device_id *match; + const struct emac_platform_data *auxdata; + struct emac_platform_data *pdata = NULL; +- const u8 *mac_addr; + + if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node) + return dev_get_platdata(&pdev->dev); +@@ -1711,11 +1710,8 @@ davinci_emac_of_get_pdata(struct platfor + np = pdev->dev.of_node; + pdata->version = EMAC_VERSION_2; + +- if (!is_valid_ether_addr(pdata->mac_addr)) { +- mac_addr = of_get_mac_address(np); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(pdata->mac_addr, mac_addr); +- } ++ if (!is_valid_ether_addr(pdata->mac_addr)) ++ of_get_mac_address(np, pdata->mac_addr); + + of_property_read_u32(np, "ti,davinci-ctrl-reg-offset", + &pdata->ctrl_reg_offset); +--- a/drivers/net/ethernet/ti/netcp_core.c ++++ b/drivers/net/ethernet/ti/netcp_core.c +@@ -1966,7 +1966,6 @@ static int netcp_create_interface(struct + struct resource res; + void __iomem *efuse = NULL; + u32 efuse_mac = 0; +- const void *mac_addr; + u8 efuse_mac_addr[6]; + u32 temp[2]; + int ret = 0; +@@ -2036,10 +2035,8 @@ static int netcp_create_interface(struct + devm_iounmap(dev, efuse); + devm_release_mem_region(dev, res.start, size); + } else { +- mac_addr = of_get_mac_address(node_interface); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(ndev->dev_addr, mac_addr); +- else ++ ret = of_get_mac_address(node_interface, ndev->dev_addr); ++ if (ret) + eth_random_addr(ndev->dev_addr); + } + +--- a/drivers/net/ethernet/wiznet/w5100-spi.c ++++ b/drivers/net/ethernet/wiznet/w5100-spi.c +@@ -423,8 +423,14 @@ static int w5100_spi_probe(struct spi_de + const struct of_device_id *of_id; + const struct w5100_ops *ops; + kernel_ulong_t driver_data; ++ const void *mac = NULL; ++ u8 tmpmac[ETH_ALEN]; + int priv_size; +- const void *mac = of_get_mac_address(spi->dev.of_node); ++ int ret; ++ ++ ret = of_get_mac_address(spi->dev.of_node, tmpmac); ++ if (!ret) ++ mac = tmpmac; + + if (spi->dev.of_node) { + of_id = of_match_device(w5100_of_match, &spi->dev); +--- a/drivers/net/ethernet/wiznet/w5100.c ++++ b/drivers/net/ethernet/wiznet/w5100.c +@@ -1159,7 +1159,7 @@ int w5100_probe(struct device *dev, cons + INIT_WORK(&priv->setrx_work, w5100_setrx_work); + INIT_WORK(&priv->restart_work, w5100_restart_work); + +- if (!IS_ERR_OR_NULL(mac_addr)) ++ if (mac_addr) + memcpy(ndev->dev_addr, mac_addr, ETH_ALEN); + else + eth_hw_addr_random(ndev); +--- a/drivers/net/ethernet/xilinx/ll_temac_main.c ++++ b/drivers/net/ethernet/xilinx/ll_temac_main.c +@@ -438,7 +438,7 @@ static void temac_do_set_mac_address(str + + static int temac_init_mac_address(struct net_device *ndev, const void *address) + { +- ether_addr_copy(ndev->dev_addr, address); ++ memcpy(ndev->dev_addr, address, ETH_ALEN); + if (!is_valid_ether_addr(ndev->dev_addr)) + eth_hw_addr_random(ndev); + temac_do_set_mac_address(ndev); +@@ -1370,7 +1370,7 @@ static int temac_probe(struct platform_d + struct device_node *temac_np = dev_of_node(&pdev->dev), *dma_np; + struct temac_local *lp; + struct net_device *ndev; +- const void *addr; ++ u8 addr[ETH_ALEN]; + __be32 *p; + bool little_endian; + int rc = 0; +@@ -1563,8 +1563,8 @@ static int temac_probe(struct platform_d + + if (temac_np) { + /* Retrieve the MAC address */ +- addr = of_get_mac_address(temac_np); +- if (IS_ERR(addr)) { ++ rc = of_get_mac_address(temac_np, addr); ++ if (rc) { + dev_err(&pdev->dev, "could not find MAC address\n"); + return -ENODEV; + } +--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c ++++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +@@ -1843,8 +1843,8 @@ static int axienet_probe(struct platform + struct device_node *np; + struct axienet_local *lp; + struct net_device *ndev; +- const void *mac_addr; + struct resource *ethres; ++ u8 mac_addr[ETH_ALEN]; + int addr_width = 32; + u32 value; + +@@ -2044,13 +2044,14 @@ static int axienet_probe(struct platform + dev_info(&pdev->dev, "Ethernet core IRQ not defined\n"); + + /* Retrieve the MAC address */ +- mac_addr = of_get_mac_address(pdev->dev.of_node); +- if (IS_ERR(mac_addr)) { +- dev_warn(&pdev->dev, "could not find MAC address property: %ld\n", +- PTR_ERR(mac_addr)); +- mac_addr = NULL; ++ ret = of_get_mac_address(pdev->dev.of_node, mac_addr); ++ if (!ret) { ++ axienet_set_mac_address(ndev, mac_addr); ++ } else { ++ dev_warn(&pdev->dev, "could not find MAC address property: %d\n", ++ ret); ++ axienet_set_mac_address(ndev, NULL); + } +- axienet_set_mac_address(ndev, mac_addr); + + lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD; + lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD; +--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c ++++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c +@@ -1107,7 +1107,6 @@ static int xemaclite_of_probe(struct pla + struct net_device *ndev = NULL; + struct net_local *lp = NULL; + struct device *dev = &ofdev->dev; +- const void *mac_address; + + int rc = 0; + +@@ -1149,12 +1148,9 @@ static int xemaclite_of_probe(struct pla + lp->next_rx_buf_to_use = 0x0; + lp->tx_ping_pong = get_bool(ofdev, "xlnx,tx-ping-pong"); + lp->rx_ping_pong = get_bool(ofdev, "xlnx,rx-ping-pong"); +- mac_address = of_get_mac_address(ofdev->dev.of_node); + +- if (!IS_ERR(mac_address)) { +- /* Set the MAC address. */ +- ether_addr_copy(ndev->dev_addr, mac_address); +- } else { ++ rc = of_get_mac_address(ofdev->dev.of_node, ndev->dev_addr); ++ if (rc) { + dev_warn(dev, "No MAC address found, using random\n"); + eth_hw_addr_random(ndev); + } +--- a/drivers/net/wireless/ath/ath9k/init.c ++++ b/drivers/net/wireless/ath/ath9k/init.c +@@ -618,7 +618,6 @@ static int ath9k_of_init(struct ath_soft + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + enum ath_bus_type bus_type = common->bus_ops->ath_bus_type; +- const char *mac; + char eeprom_name[100]; + int ret; + +@@ -641,9 +640,7 @@ static int ath9k_of_init(struct ath_soft + ah->ah_flags |= AH_NO_EEP_SWAP; + } + +- mac = of_get_mac_address(np); +- if (!IS_ERR(mac)) +- ether_addr_copy(common->macaddr, mac); ++ of_get_mac_address(np, common->macaddr); + + return 0; + } +--- a/drivers/net/wireless/mediatek/mt76/eeprom.c ++++ b/drivers/net/wireless/mediatek/mt76/eeprom.c +@@ -90,15 +90,9 @@ out_put_node: + void + mt76_eeprom_override(struct mt76_dev *dev) + { +-#ifdef CONFIG_OF + struct device_node *np = dev->dev->of_node; +- const u8 *mac = NULL; + +- if (np) +- mac = of_get_mac_address(np); +- if (!IS_ERR_OR_NULL(mac)) +- ether_addr_copy(dev->macaddr, mac); +-#endif ++ of_get_mac_address(np, dev->macaddr); + + if (!is_valid_ether_addr(dev->macaddr)) { + eth_random_addr(dev->macaddr); +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c +@@ -990,11 +990,7 @@ static void rt2x00lib_rate(struct ieee80 + + void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr) + { +- const char *mac_addr; +- +- mac_addr = of_get_mac_address(rt2x00dev->dev->of_node); +- if (!IS_ERR(mac_addr)) +- ether_addr_copy(eeprom_mac_addr, mac_addr); ++ of_get_mac_address(rt2x00dev->dev->of_node, eeprom_mac_addr); + + if (!is_valid_ether_addr(eeprom_mac_addr)) { + eth_random_addr(eeprom_mac_addr); +--- a/drivers/of/of_net.c ++++ b/drivers/of/of_net.c +@@ -45,37 +45,29 @@ int of_get_phy_mode(struct device_node * + } + EXPORT_SYMBOL_GPL(of_get_phy_mode); + +-static const void *of_get_mac_addr(struct device_node *np, const char *name) ++static int of_get_mac_addr(struct device_node *np, const char *name, u8 *addr) + { + struct property *pp = of_find_property(np, name, NULL); + +- if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value)) +- return pp->value; +- return NULL; ++ if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value)) { ++ memcpy(addr, pp->value, ETH_ALEN); ++ return 0; ++ } ++ return -ENODEV; + } + +-static const void *of_get_mac_addr_nvmem(struct device_node *np) ++static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr) + { +- int ret; +- const void *mac; +- u8 nvmem_mac[ETH_ALEN]; + struct platform_device *pdev = of_find_device_by_node(np); ++ int ret; + + if (!pdev) +- return ERR_PTR(-ENODEV); ++ return -ENODEV; + +- ret = nvmem_get_mac_address(&pdev->dev, &nvmem_mac); +- if (ret) { +- put_device(&pdev->dev); +- return ERR_PTR(ret); +- } +- +- mac = devm_kmemdup(&pdev->dev, nvmem_mac, ETH_ALEN, GFP_KERNEL); ++ ret = nvmem_get_mac_address(&pdev->dev, addr); + put_device(&pdev->dev); +- if (!mac) +- return ERR_PTR(-ENOMEM); + +- return mac; ++ return ret; + } + + /** +@@ -98,24 +90,27 @@ static const void *of_get_mac_addr_nvmem + * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists + * but is all zeros. + * +- * Return: Will be a valid pointer on success and ERR_PTR in case of error. ++ * Return: 0 on success and errno in case of error. + */ +-const void *of_get_mac_address(struct device_node *np) ++int of_get_mac_address(struct device_node *np, u8 *addr) + { +- const void *addr; +- +- addr = of_get_mac_addr(np, "mac-address"); +- if (addr) +- return addr; ++ int ret; + +- addr = of_get_mac_addr(np, "local-mac-address"); +- if (addr) +- return addr; ++ if (!np) ++ return -ENODEV; + +- addr = of_get_mac_addr(np, "address"); +- if (addr) +- return addr; ++ ret = of_get_mac_addr(np, "mac-address", addr); ++ if (!ret) ++ return 0; ++ ++ ret = of_get_mac_addr(np, "local-mac-address", addr); ++ if (!ret) ++ return 0; ++ ++ ret = of_get_mac_addr(np, "address", addr); ++ if (!ret) ++ return 0; + +- return of_get_mac_addr_nvmem(np); ++ return of_get_mac_addr_nvmem(np, addr); + } + EXPORT_SYMBOL(of_get_mac_address); +--- a/drivers/staging/octeon/ethernet.c ++++ b/drivers/staging/octeon/ethernet.c +@@ -407,14 +407,10 @@ static int cvm_oct_common_set_mac_addres + int cvm_oct_common_init(struct net_device *dev) + { + struct octeon_ethernet *priv = netdev_priv(dev); +- const u8 *mac = NULL; ++ int ret; + +- if (priv->of_node) +- mac = of_get_mac_address(priv->of_node); +- +- if (!IS_ERR_OR_NULL(mac)) +- ether_addr_copy(dev->dev_addr, mac); +- else ++ ret = of_get_mac_address(priv->of_node, dev->dev_addr); ++ if (ret) + eth_hw_addr_random(dev); + + /* +--- a/drivers/staging/wfx/main.c ++++ b/drivers/staging/wfx/main.c +@@ -339,7 +339,6 @@ int wfx_probe(struct wfx_dev *wdev) + { + int i; + int err; +- const void *macaddr; + struct gpio_desc *gpio_saved; + + // During first part of boot, gpio_wakeup cannot yet been used. So +@@ -428,9 +427,9 @@ int wfx_probe(struct wfx_dev *wdev) + + for (i = 0; i < ARRAY_SIZE(wdev->addresses); i++) { + eth_zero_addr(wdev->addresses[i].addr); +- macaddr = of_get_mac_address(wdev->dev->of_node); +- if (!IS_ERR_OR_NULL(macaddr)) { +- ether_addr_copy(wdev->addresses[i].addr, macaddr); ++ err = of_get_mac_address(wdev->dev->of_node, ++ wdev->addresses[i].addr); ++ if (!err) { + wdev->addresses[i].addr[ETH_ALEN - 1] += i; + } else { + ether_addr_copy(wdev->addresses[i].addr, +--- a/include/linux/of_net.h ++++ b/include/linux/of_net.h +@@ -13,7 +13,7 @@ + + struct net_device; + extern int of_get_phy_mode(struct device_node *np, phy_interface_t *interface); +-extern const void *of_get_mac_address(struct device_node *np); ++extern int of_get_mac_address(struct device_node *np, u8 *mac); + extern struct net_device *of_find_net_device_by_node(struct device_node *np); + #else + static inline int of_get_phy_mode(struct device_node *np, +@@ -22,9 +22,9 @@ static inline int of_get_phy_mode(struct + return -ENODEV; + } + +-static inline const void *of_get_mac_address(struct device_node *np) ++static inline int of_get_mac_address(struct device_node *np, u8 *mac) + { +- return ERR_PTR(-ENODEV); ++ return -ENODEV; + } + + static inline struct net_device *of_find_net_device_by_node(struct device_node *np) +--- a/include/net/dsa.h ++++ b/include/net/dsa.h +@@ -208,7 +208,7 @@ struct dsa_port { + unsigned int index; + const char *name; + struct dsa_port *cpu_dp; +- const char *mac; ++ u8 mac[ETH_ALEN]; + struct device_node *dn; + unsigned int ageing_time; + bool vlan_filtering; +--- a/net/dsa/dsa2.c ++++ b/net/dsa/dsa2.c +@@ -288,7 +288,7 @@ static int dsa_port_setup(struct dsa_por + + break; + case DSA_PORT_TYPE_USER: +- dp->mac = of_get_mac_address(dp->dn); ++ of_get_mac_address(dp->dn, dp->mac); + err = dsa_slave_create(dp); + if (err) + break; +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -1855,7 +1855,7 @@ int dsa_slave_create(struct dsa_port *po + slave_dev->hw_features |= NETIF_F_HW_TC; + slave_dev->features |= NETIF_F_LLTX; + slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; +- if (!IS_ERR_OR_NULL(port->mac)) ++ if (!is_zero_ether_addr(port->mac)) + ether_addr_copy(slave_dev->dev_addr, port->mac); + else + eth_hw_addr_inherit(slave_dev, master); +--- a/net/ethernet/eth.c ++++ b/net/ethernet/eth.c +@@ -506,13 +506,14 @@ unsigned char * __weak arch_get_platform + + int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr) + { +- const unsigned char *addr = NULL; ++ unsigned char *addr; ++ int ret; + +- if (dev->of_node) +- addr = of_get_mac_address(dev->of_node); +- if (IS_ERR_OR_NULL(addr)) +- addr = arch_get_platform_mac_address(); ++ ret = of_get_mac_address(dev->of_node, mac_addr); ++ if (!ret) ++ return 0; + ++ addr = arch_get_platform_mac_address(); + if (!addr) + return -ENODEV; + diff --git a/target/linux/generic/backport-5.10/732-v5.13-0009-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-de.patch b/target/linux/generic/backport-5.10/732-v5.13-0009-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-de.patch new file mode 100644 index 0000000000..260a3258bb --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0009-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-de.patch @@ -0,0 +1,77 @@ +From f10843e04a075202dbb39dfcee047e3a2fdf5a8d Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Mon, 12 Apr 2021 19:47:18 +0200 +Subject: [PATCH] of: net: fix of_get_mac_addr_nvmem() for non-platform devices + +of_get_mac_address() already supports fetching the MAC address by an +nvmem provider. But until now, it was just working for platform devices. +Esp. it was not working for DSA ports and PCI devices. It gets more +common that PCI devices have a device tree binding since SoCs contain +integrated root complexes. + +Use the nvmem of_* binding to fetch the nvmem cells by a struct +device_node. We still have to try to read the cell by device first +because there might be a nvmem_cell_lookup associated with that device. + +Signed-off-by: Michael Walle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/of/of_net.c | 35 ++++++++++++++++++++++++++++++----- + 1 file changed, 30 insertions(+), 5 deletions(-) + +--- a/drivers/of/of_net.c ++++ b/drivers/of/of_net.c +@@ -11,6 +11,7 @@ + #include + #include + #include ++#include + + /** + * of_get_phy_mode - Get phy mode for given device_node +@@ -59,15 +60,39 @@ static int of_get_mac_addr(struct device + static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr) + { + struct platform_device *pdev = of_find_device_by_node(np); ++ struct nvmem_cell *cell; ++ const void *mac; ++ size_t len; + int ret; + +- if (!pdev) +- return -ENODEV; ++ /* Try lookup by device first, there might be a nvmem_cell_lookup ++ * associated with a given device. ++ */ ++ if (pdev) { ++ ret = nvmem_get_mac_address(&pdev->dev, addr); ++ put_device(&pdev->dev); ++ return ret; ++ } ++ ++ cell = of_nvmem_cell_get(np, "mac-address"); ++ if (IS_ERR(cell)) ++ return PTR_ERR(cell); ++ ++ mac = nvmem_cell_read(cell, &len); ++ nvmem_cell_put(cell); ++ ++ if (IS_ERR(mac)) ++ return PTR_ERR(mac); ++ ++ if (len != ETH_ALEN || !is_valid_ether_addr(mac)) { ++ kfree(mac); ++ return -EINVAL; ++ } + +- ret = nvmem_get_mac_address(&pdev->dev, addr); +- put_device(&pdev->dev); ++ memcpy(addr, mac, ETH_ALEN); ++ kfree(mac); + +- return ret; ++ return 0; + } + + /** diff --git a/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch b/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch new file mode 100644 index 0000000000..ee5b7a0f7e --- /dev/null +++ b/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch @@ -0,0 +1,27 @@ +From a065d5615fc83908ef21ed8159ffb63d816ff5de Mon Sep 17 00:00:00 2001 +From: Krzysztof Kozlowski +Date: Wed, 28 Jul 2021 16:42:27 +0200 +Subject: [PATCH] of: unify of_count_phandle_with_args() arguments with + !CONFIG_OF + +Unify the declaration of of_count_phandle_with_args() between enabled +and disabled OF by making constifying pointed device_node. + +Signed-off-by: Krzysztof Kozlowski +Reviewed-by: Rob Herring +Signed-off-by: Bartosz Golaszewski +--- + include/linux/of.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -889,7 +889,7 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_count_phandle_with_args(struct device_node *np, ++static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) + { diff --git a/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch b/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch new file mode 100644 index 0000000000..b6ef67dfa7 --- /dev/null +++ b/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch @@ -0,0 +1,359 @@ +From 66a8f7f04979f4ad739085f01d99c8caf620b4f5 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 18 Jan 2022 18:35:02 +0100 +Subject: [PATCH] of: base: make small of_parse_phandle() variants static + inline + +Make all the smaller variants of the of_parse_phandle() static inline. +This also let us remove the empty function stubs if CONFIG_OF is not +defined. + +Suggested-by: Rob Herring +Signed-off-by: Michael Walle +[robh: move index < 0 check into __of_parse_phandle_with_args] +Signed-off-by: Rob Herring +Link: https://lore.kernel.org/r/20220118173504.2867523-2-michael@walle.cc +--- + drivers/of/base.c | 131 +++------------------------------------ + include/linux/of.h | 148 ++++++++++++++++++++++++++++++++++++--------- + 2 files changed, 129 insertions(+), 150 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1372,15 +1372,18 @@ int of_phandle_iterator_args(struct of_p + return count; + } + +-static int __of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int cell_count, int index, +- struct of_phandle_args *out_args) ++int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, int index, ++ struct of_phandle_args *out_args) + { + struct of_phandle_iterator it; + int rc, cur_index = 0; + ++ if (index < 0) ++ return -EINVAL; ++ + /* Loop over the phandles until all the requested entry is found */ + of_for_each_phandle(&it, rc, np, list_name, cells_name, cell_count) { + /* +@@ -1423,82 +1426,7 @@ static int __of_parse_phandle_with_args( + of_node_put(it.node); + return rc; + } +- +-/** +- * of_parse_phandle - Resolve a phandle property to a device_node pointer +- * @np: Pointer to device node holding phandle property +- * @phandle_name: Name of property holding a phandle value +- * @index: For properties holding a table of phandles, this is the index into +- * the table +- * +- * Return: The device_node pointer with refcount incremented. Use +- * of_node_put() on it when done. +- */ +-struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, int index) +-{ +- struct of_phandle_args args; +- +- if (index < 0) +- return NULL; +- +- if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, +- index, &args)) +- return NULL; +- +- return args.np; +-} +-EXPORT_SYMBOL(of_parse_phandle); +- +-/** +- * of_parse_phandle_with_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cells_name: property name that specifies phandles' arguments count +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * #list-cells = <2>; +- * }; +- * +- * phandle2: node2 { +- * #list-cells = <1>; +- * }; +- * +- * node3 { +- * list = <&phandle1 1 2 &phandle2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); +- */ +-int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +- const char *cells_name, int index, +- struct of_phandle_args *out_args) +-{ +- int cell_count = -1; +- +- if (index < 0) +- return -EINVAL; +- +- /* If cells_name is NULL we assume a cell count of 0 */ +- if (!cells_name) +- cell_count = 0; +- +- return __of_parse_phandle_with_args(np, list_name, cells_name, +- cell_count, index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_args); ++EXPORT_SYMBOL(__of_parse_phandle_with_args); + + /** + * of_parse_phandle_with_args_map() - Find a node pointed by phandle in a list and remap it +@@ -1685,47 +1613,6 @@ free: + EXPORT_SYMBOL(of_parse_phandle_with_args_map); + + /** +- * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cell_count: number of argument cells following the phandle +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * }; +- * +- * phandle2: node2 { +- * }; +- * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); +- */ +-int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cell_count, +- int index, struct of_phandle_args *out_args) +-{ +- if (index < 0) +- return -EINVAL; +- return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, +- index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_fixed_args); +- +-/** + * of_count_phandle_with_args() - Find the number of phandles references in a property + * @np: pointer to a device tree node containing a list + * @list_name: property name that contains a list +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -363,18 +363,12 @@ extern const struct of_device_id *of_mat + const struct of_device_id *matches, const struct device_node *node); + extern int of_modalias_node(struct device_node *node, char *modalias, int len); + extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args); +-extern struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index); +-extern int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, const char *cells_name, int index, +- struct of_phandle_args *out_args); ++extern int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, const char *cells_name, int cell_count, ++ int index, struct of_phandle_args *out_args); + extern int of_parse_phandle_with_args_map(const struct device_node *np, + const char *list_name, const char *stem_name, int index, + struct of_phandle_args *out_args); +-extern int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args); + extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); + +@@ -857,18 +851,12 @@ static inline int of_property_read_strin + return -ENOSYS; + } + +-static inline struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index) +-{ +- return NULL; +-} +- +-static inline int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int index, +- struct of_phandle_args *out_args) ++static inline int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) + { + return -ENOSYS; + } +@@ -882,13 +870,6 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args) +-{ +- return -ENOSYS; +-} +- + static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) +@@ -1065,6 +1046,117 @@ static inline bool of_node_is_type(const + } + + /** ++ * of_parse_phandle - Resolve a phandle property to a device_node pointer ++ * @np: Pointer to device node holding phandle property ++ * @phandle_name: Name of property holding a phandle value ++ * @index: For properties holding a table of phandles, this is the index into ++ * the table ++ * ++ * Return: The device_node pointer with refcount incremented. Use ++ * of_node_put() on it when done. ++ */ ++static inline struct device_node *of_parse_phandle(const struct device_node *np, ++ const char *phandle_name, ++ int index) ++{ ++ struct of_phandle_args args; ++ ++ if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, ++ index, &args)) ++ return NULL; ++ ++ return args.np; ++} ++ ++/** ++ * of_parse_phandle_with_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * #list-cells = <2>; ++ * }; ++ * ++ * phandle2: node2 { ++ * #list-cells = <1>; ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 1 2 &phandle2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); ++ */ ++static inline int of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ int cell_count = -1; ++ ++ /* If cells_name is NULL we assume a cell count of 0 */ ++ if (!cells_name) ++ cell_count = 0; ++ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ cell_count, index, out_args); ++} ++ ++/** ++ * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cell_count: number of argument cells following the phandle ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * }; ++ * ++ * phandle2: node2 { ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); ++ */ ++static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, ++ const char *list_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, ++ index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch b/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch new file mode 100644 index 0000000000..a3df3ce75c --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch @@ -0,0 +1,56 @@ +From 8eddceb280f5deb8046fcb660de9f9f683b408b9 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:21 +0100 +Subject: [PATCH] of: base: add of_parse_phandle_with_optional_args() + +Add a new variant of the of_parse_phandle_with_args() which treats the +cells name as optional. If it's missing, it is assumed that the phandle +has no arguments. + +Up until now, a nvmem node didn't have any arguments, so all the device +trees haven't any '#*-cells' property. But there is a need for an +additional argument for the phandle, for which we need a '#*-cells' +property. Therefore, we need to support nvmem nodes with and without +this property. + +Signed-off-by: Michael Walle +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + include/linux/of.h | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -1157,6 +1157,31 @@ static inline int of_parse_phandle_with_ + } + + /** ++ * of_parse_phandle_with_optional_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * Same as of_parse_phandle_with_args() except that if the cells_name property ++ * is not found, cell_count of 0 is assumed. ++ * ++ * This is used to useful, if you have a phandle which didn't have arguments ++ * before and thus doesn't have a '#*-cells' property but is now migrated to ++ * having arguments while retaining backwards compatibility. ++ */ ++static inline int of_parse_phandle_with_optional_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ 0, index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch b/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch new file mode 100644 index 0000000000..95b0e60d56 --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch @@ -0,0 +1,32 @@ +From 4f4145c9fee8c7a445dbbbadceccce5391e6b287 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:22 +0100 +Subject: [PATCH] of: property: make #.*-cells optional for simple props + +Sometimes, future bindings for phandles will get additional arguments. +Thus the target node of the phandle will need a new #.*-cells property. +To be backwards compatible, this needs to be optional. + +Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional. + +Signed-off-by: Michael Walle +Tested-by: Miquel Raynal +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + drivers/of/property.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1267,8 +1267,8 @@ static struct device_node *parse_suffix_ + if (strcmp_suffix(prop_name, suffix)) + return NULL; + +- if (of_parse_phandle_with_args(np, prop_name, cells_name, index, +- &sup_args)) ++ if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0, index, ++ &sup_args)) + return NULL; + + return sup_args.np; diff --git a/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch b/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch new file mode 100644 index 0000000000..5d1df95ff1 --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch @@ -0,0 +1,28 @@ +From 9cf9486a6a7e8a3d76154d0c506051ba3740e8b6 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:23 +0100 +Subject: [PATCH] of: property: add #nvmem-cell-cells property + +Bindings describe the new '#nvmem-cell-cells' property. Now that the +arguments count property is optional, we just add this property to the +nvmem-cells. + +Signed-off-by: Michael Walle +Tested-by: Miquel Raynal +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + drivers/of/property.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1314,7 +1314,7 @@ DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", " + DEFINE_SIMPLE_PROP(extcon, "extcon", NULL) + DEFINE_SIMPLE_PROP(interrupts_extended, "interrupts-extended", + "#interrupt-cells") +-DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", NULL) ++DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", "#nvmem-cell-cells") + DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells") + DEFINE_SIMPLE_PROP(wakeup_parent, "wakeup-parent", NULL) + DEFINE_SIMPLE_PROP(pinctrl0, "pinctrl-0", NULL) diff --git a/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch b/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch new file mode 100644 index 0000000000..b00cf57419 --- /dev/null +++ b/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch @@ -0,0 +1,359 @@ +From 66a8f7f04979f4ad739085f01d99c8caf620b4f5 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 18 Jan 2022 18:35:02 +0100 +Subject: [PATCH] of: base: make small of_parse_phandle() variants static + inline + +Make all the smaller variants of the of_parse_phandle() static inline. +This also let us remove the empty function stubs if CONFIG_OF is not +defined. + +Suggested-by: Rob Herring +Signed-off-by: Michael Walle +[robh: move index < 0 check into __of_parse_phandle_with_args] +Signed-off-by: Rob Herring +Link: https://lore.kernel.org/r/20220118173504.2867523-2-michael@walle.cc +--- + drivers/of/base.c | 131 +++------------------------------------ + include/linux/of.h | 148 ++++++++++++++++++++++++++++++++++++--------- + 2 files changed, 129 insertions(+), 150 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1371,15 +1371,18 @@ int of_phandle_iterator_args(struct of_p + return count; + } + +-static int __of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int cell_count, int index, +- struct of_phandle_args *out_args) ++int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, int index, ++ struct of_phandle_args *out_args) + { + struct of_phandle_iterator it; + int rc, cur_index = 0; + ++ if (index < 0) ++ return -EINVAL; ++ + /* Loop over the phandles until all the requested entry is found */ + of_for_each_phandle(&it, rc, np, list_name, cells_name, cell_count) { + /* +@@ -1422,82 +1425,7 @@ static int __of_parse_phandle_with_args( + of_node_put(it.node); + return rc; + } +- +-/** +- * of_parse_phandle - Resolve a phandle property to a device_node pointer +- * @np: Pointer to device node holding phandle property +- * @phandle_name: Name of property holding a phandle value +- * @index: For properties holding a table of phandles, this is the index into +- * the table +- * +- * Return: The device_node pointer with refcount incremented. Use +- * of_node_put() on it when done. +- */ +-struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, int index) +-{ +- struct of_phandle_args args; +- +- if (index < 0) +- return NULL; +- +- if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, +- index, &args)) +- return NULL; +- +- return args.np; +-} +-EXPORT_SYMBOL(of_parse_phandle); +- +-/** +- * of_parse_phandle_with_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cells_name: property name that specifies phandles' arguments count +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * #list-cells = <2>; +- * }; +- * +- * phandle2: node2 { +- * #list-cells = <1>; +- * }; +- * +- * node3 { +- * list = <&phandle1 1 2 &phandle2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); +- */ +-int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +- const char *cells_name, int index, +- struct of_phandle_args *out_args) +-{ +- int cell_count = -1; +- +- if (index < 0) +- return -EINVAL; +- +- /* If cells_name is NULL we assume a cell count of 0 */ +- if (!cells_name) +- cell_count = 0; +- +- return __of_parse_phandle_with_args(np, list_name, cells_name, +- cell_count, index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_args); ++EXPORT_SYMBOL(__of_parse_phandle_with_args); + + /** + * of_parse_phandle_with_args_map() - Find a node pointed by phandle in a list and remap it +@@ -1684,47 +1612,6 @@ free: + EXPORT_SYMBOL(of_parse_phandle_with_args_map); + + /** +- * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cell_count: number of argument cells following the phandle +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * }; +- * +- * phandle2: node2 { +- * }; +- * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); +- */ +-int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cell_count, +- int index, struct of_phandle_args *out_args) +-{ +- if (index < 0) +- return -EINVAL; +- return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, +- index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_fixed_args); +- +-/** + * of_count_phandle_with_args() - Find the number of phandles references in a property + * @np: pointer to a device tree node containing a list + * @list_name: property name that contains a list +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -363,18 +363,12 @@ extern const struct of_device_id *of_mat + const struct of_device_id *matches, const struct device_node *node); + extern int of_modalias_node(struct device_node *node, char *modalias, int len); + extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args); +-extern struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index); +-extern int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, const char *cells_name, int index, +- struct of_phandle_args *out_args); ++extern int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, const char *cells_name, int cell_count, ++ int index, struct of_phandle_args *out_args); + extern int of_parse_phandle_with_args_map(const struct device_node *np, + const char *list_name, const char *stem_name, int index, + struct of_phandle_args *out_args); +-extern int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args); + extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); + +@@ -864,18 +858,12 @@ static inline int of_property_read_strin + return -ENOSYS; + } + +-static inline struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index) +-{ +- return NULL; +-} +- +-static inline int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int index, +- struct of_phandle_args *out_args) ++static inline int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) + { + return -ENOSYS; + } +@@ -889,13 +877,6 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args) +-{ +- return -ENOSYS; +-} +- + static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) +@@ -1077,6 +1058,117 @@ static inline bool of_node_is_type(const + } + + /** ++ * of_parse_phandle - Resolve a phandle property to a device_node pointer ++ * @np: Pointer to device node holding phandle property ++ * @phandle_name: Name of property holding a phandle value ++ * @index: For properties holding a table of phandles, this is the index into ++ * the table ++ * ++ * Return: The device_node pointer with refcount incremented. Use ++ * of_node_put() on it when done. ++ */ ++static inline struct device_node *of_parse_phandle(const struct device_node *np, ++ const char *phandle_name, ++ int index) ++{ ++ struct of_phandle_args args; ++ ++ if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, ++ index, &args)) ++ return NULL; ++ ++ return args.np; ++} ++ ++/** ++ * of_parse_phandle_with_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * #list-cells = <2>; ++ * }; ++ * ++ * phandle2: node2 { ++ * #list-cells = <1>; ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 1 2 &phandle2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); ++ */ ++static inline int of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ int cell_count = -1; ++ ++ /* If cells_name is NULL we assume a cell count of 0 */ ++ if (!cells_name) ++ cell_count = 0; ++ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ cell_count, index, out_args); ++} ++ ++/** ++ * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cell_count: number of argument cells following the phandle ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * }; ++ * ++ * phandle2: node2 { ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); ++ */ ++static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, ++ const char *list_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, ++ index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch b/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch new file mode 100644 index 0000000000..b829f21cfa --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch @@ -0,0 +1,56 @@ +From 8eddceb280f5deb8046fcb660de9f9f683b408b9 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:21 +0100 +Subject: [PATCH] of: base: add of_parse_phandle_with_optional_args() + +Add a new variant of the of_parse_phandle_with_args() which treats the +cells name as optional. If it's missing, it is assumed that the phandle +has no arguments. + +Up until now, a nvmem node didn't have any arguments, so all the device +trees haven't any '#*-cells' property. But there is a need for an +additional argument for the phandle, for which we need a '#*-cells' +property. Therefore, we need to support nvmem nodes with and without +this property. + +Signed-off-by: Michael Walle +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + include/linux/of.h | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -1169,6 +1169,31 @@ static inline int of_parse_phandle_with_ + } + + /** ++ * of_parse_phandle_with_optional_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * Same as of_parse_phandle_with_args() except that if the cells_name property ++ * is not found, cell_count of 0 is assumed. ++ * ++ * This is used to useful, if you have a phandle which didn't have arguments ++ * before and thus doesn't have a '#*-cells' property but is now migrated to ++ * having arguments while retaining backwards compatibility. ++ */ ++static inline int of_parse_phandle_with_optional_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ 0, index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch b/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch new file mode 100644 index 0000000000..4cf11ca34b --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch @@ -0,0 +1,32 @@ +From 4f4145c9fee8c7a445dbbbadceccce5391e6b287 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:22 +0100 +Subject: [PATCH] of: property: make #.*-cells optional for simple props + +Sometimes, future bindings for phandles will get additional arguments. +Thus the target node of the phandle will need a new #.*-cells property. +To be backwards compatible, this needs to be optional. + +Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional. + +Signed-off-by: Michael Walle +Tested-by: Miquel Raynal +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + drivers/of/property.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1227,8 +1227,8 @@ static struct device_node *parse_suffix_ + if (strcmp_suffix(prop_name, suffix)) + return NULL; + +- if (of_parse_phandle_with_args(np, prop_name, cells_name, index, +- &sup_args)) ++ if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0, index, ++ &sup_args)) + return NULL; + + return sup_args.np; diff --git a/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch b/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch new file mode 100644 index 0000000000..8c047e685d --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch @@ -0,0 +1,28 @@ +From 9cf9486a6a7e8a3d76154d0c506051ba3740e8b6 Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Tue, 6 Dec 2022 21:07:23 +0100 +Subject: [PATCH] of: property: add #nvmem-cell-cells property + +Bindings describe the new '#nvmem-cell-cells' property. Now that the +arguments count property is optional, we just add this property to the +nvmem-cells. + +Signed-off-by: Michael Walle +Tested-by: Miquel Raynal +Reviewed-by: Rob Herring +Signed-off-by: Srinivas Kandagatla +--- + drivers/of/property.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1276,7 +1276,7 @@ DEFINE_SIMPLE_PROP(dmas, "dmas", "#dma-c + DEFINE_SIMPLE_PROP(power_domains, "power-domains", "#power-domain-cells") + DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", "#hwlock-cells") + DEFINE_SIMPLE_PROP(extcon, "extcon", NULL) +-DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", NULL) ++DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", "#nvmem-cell-cells") + DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells") + DEFINE_SIMPLE_PROP(wakeup_parent, "wakeup-parent", NULL) + DEFINE_SIMPLE_PROP(pinctrl0, "pinctrl-0", NULL) diff --git a/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch b/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch index 17d3f2ffd5..dbba45b41c 100644 --- a/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch +++ b/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch @@ -16,7 +16,7 @@ SVN-Revision: 36780 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c -@@ -1055,6 +1055,9 @@ int __init early_init_dt_scan_chosen(uns +@@ -1054,6 +1054,9 @@ int __init early_init_dt_scan_chosen(uns p = of_get_flat_dt_prop(node, "bootargs", &l); if (p != NULL && l > 0) strlcpy(data, p, min(l, COMMAND_LINE_SIZE)); diff --git a/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch b/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch index ddc3b7cb52..3f43328961 100644 --- a/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch +++ b/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch @@ -17,7 +17,7 @@ default "" --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c -@@ -1059,6 +1059,17 @@ int __init early_init_dt_scan_chosen(uns +@@ -1058,6 +1058,17 @@ int __init early_init_dt_scan_chosen(uns if (p != NULL && l > 0) strlcat(data, p, min_t(int, strlen(data) + (int)l, COMMAND_LINE_SIZE)); diff --git a/target/linux/mpc85xx/patches-5.10/102-powerpc-add-cmdline-override.patch b/target/linux/mpc85xx/patches-5.10/102-powerpc-add-cmdline-override.patch index 9242fce4e2..95ce5f2bb9 100644 --- a/target/linux/mpc85xx/patches-5.10/102-powerpc-add-cmdline-override.patch +++ b/target/linux/mpc85xx/patches-5.10/102-powerpc-add-cmdline-override.patch @@ -17,7 +17,7 @@ help --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c -@@ -1059,6 +1059,17 @@ int __init early_init_dt_scan_chosen(uns +@@ -1058,6 +1058,17 @@ int __init early_init_dt_scan_chosen(uns if (p != NULL && l > 0) strlcat(data, p, min_t(int, strlen(data) + (int)l, COMMAND_LINE_SIZE));