kernel: remove support for kernel 4.14

[openwrt/staging/dedeckeh.git] / target / linux / generic / pending-4.14 / 681-NET-add-of_get_mac_address_mtd.patch

diff --git a/target/linux/generic/pending-4.14/681-NET-add-of_get_mac_address_mtd.patch b/target/linux/generic/pending-4.14/681-NET-add-of_get_mac_address_mtd.patch
deleted file mode 100644 (file)
index 2b89a05..0000000
--- a/target/linux/generic/pending-4.14/681-NET-add-of_get_mac_address_mtd.patch
+++ /dev/null
@@ -1,133 +0,0 @@
-From: John Crispin <blogic@openwrt.org>
-Subject: NET: add mtd-mac-address support to of_get_mac_address()
-
-Many embedded devices have information such as mac addresses stored inside mtd
-devices. This patch allows us to add a property inside a node describing a
-network interface. The new property points at a mtd partition with an offset
-where the mac address can be found.
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- drivers/of/of_net.c    |   37 +++++++++++++++++++++++++++++++++++++
- include/linux/of_net.h |    1 +
- 2 files changed, 38 insertions(+)
-
---- a/drivers/of/of_net.c
-+++ b/drivers/of/of_net.c
-@@ -10,6 +10,7 @@
- #include <linux/of_net.h>
- #include <linux/phy.h>
- #include <linux/export.h>
-+#include <linux/mtd/mtd.h>
- 
- /**
-  * of_get_phy_mode - Get phy mode for given device_node
-@@ -38,7 +39,7 @@ 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 void *of_get_mac_addr(struct device_node *np, const char *name)
- {
-       struct property *pp = of_find_property(np, name, NULL);
- 
-@@ -47,6 +48,79 @@ static const void *of_get_mac_addr(struc
-       return NULL;
- }
- 
-+static const void *of_get_mac_address_mtd(struct device_node *np)
-+{
-+#ifdef CONFIG_MTD
-+      struct device_node *mtd_np = NULL;
-+      struct property *prop;
-+      size_t retlen;
-+      int size, ret;
-+      struct mtd_info *mtd;
-+      const char *part;
-+      const __be32 *list;
-+      phandle phandle;
-+      u32 mac_inc = 0;
-+      u8 mac[ETH_ALEN];
-+      void *addr;
-+      u32 inc_idx;
-+
-+      list = of_get_property(np, "mtd-mac-address", &size);
-+      if (!list || (size != (2 * sizeof(*list))))
-+              return NULL;
-+
-+      phandle = be32_to_cpup(list++);
-+      if (phandle)
-+              mtd_np = of_find_node_by_phandle(phandle);
-+
-+      if (!mtd_np)
-+              return NULL;
-+
-+      part = of_get_property(mtd_np, "label", NULL);
-+      if (!part)
-+              part = mtd_np->name;
-+
-+      mtd = get_mtd_device_nm(part);
-+      if (IS_ERR(mtd))
-+              return NULL;
-+
-+      ret = mtd_read(mtd, be32_to_cpup(list), 6, &retlen, mac);
-+      put_mtd_device(mtd);
-+
-+      if (of_property_read_u32(np, "mtd-mac-address-increment-byte", &inc_idx))
-+              inc_idx = 5;
-+      if (inc_idx > 5)
-+              return NULL;
-+
-+      if (!of_property_read_u32(np, "mtd-mac-address-increment", &mac_inc))
-+              mac[inc_idx] += mac_inc;
-+
-+      if (!is_valid_ether_addr(mac))
-+              return NULL;
-+
-+      addr = of_get_mac_addr(np, "mac-address");
-+      if (addr) {
-+              memcpy(addr, mac, ETH_ALEN);
-+              return addr;
-+      }
-+
-+      prop = kzalloc(sizeof(*prop), GFP_KERNEL);
-+      if (!prop)
-+              return NULL;
-+
-+      prop->name = "mac-address";
-+      prop->length = ETH_ALEN;
-+      prop->value = kmemdup(mac, ETH_ALEN, GFP_KERNEL);
-+      if (!prop->value || of_add_property(np, prop))
-+              goto free;
-+
-+      return prop->value;
-+free:
-+      kfree(prop->value);
-+      kfree(prop);
-+#endif
-+      return NULL;
-+}
-+
- /**
-  * Search the device tree for the best MAC address to use.  'mac-address' is
-  * checked first, because that is supposed to contain to "most recent" MAC
-@@ -64,11 +138,18 @@ static const void *of_get_mac_addr(struc
-  * addresses.  Some older U-Boots only initialized 'local-mac-address'.  In
-  * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
-  * but is all zeros.
-+ *
-+ * If a mtd-mac-address property exists, try to fetch the MAC address from the
-+ * specified mtd device, and store it as a 'mac-address' property
- */
- const void *of_get_mac_address(struct device_node *np)
- {
-       const void *addr;
- 
-+      addr = of_get_mac_address_mtd(np);
-+      if (addr)
-+              return addr;
-+
-       addr = of_get_mac_addr(np, "mac-address");
-       if (addr)
-               return addr;