package/kernel/mac80211/patches/brcm/349-v5.1-0003-brcmfmac-create-debugfs-files-for-bus-specific-layer.patch

   1 From aaf6a5e86e36766abbeedf220462bde8031f9a72 Mon Sep 17 00:00:00 2001
   2 From: Arend van Spriel <arend.vanspriel@broadcom.com>
   3 Date: Thu, 14 Feb 2019 13:43:49 +0100
   4 Subject: [PATCH] brcmfmac: create debugfs files for bus-specific layer
   5
   6 Since we moved the drivers debugfs directory under ieee80211 debugfs the
   7 debugfs entries need to be added after wiphy_register() has been called.
   8 For most part that has been done accordingly, but for the debugfs entries
   9 added by SDIO it was not and failed silently. This patch fixes that by
  10 adding a bus-layer callback for it.
  11
  12 Fixes: 856d5a011c86 ("brcmfmac: allocate struct brcmf_pub instance using wiphy_new()")
  13 Reported-by: Russel King <linux@armlinux.org.uk>
  14 Reviewed-by: Franky Lin <franky.lin@broadcom.com>
  15 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  16 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  17 ---
  18  .../net/wireless/broadcom/brcm80211/brcmfmac/bus.h   | 10 ++++++++++
  19  .../net/wireless/broadcom/brcm80211/brcmfmac/core.c  |  1 +
  20  .../net/wireless/broadcom/brcm80211/brcmfmac/sdio.c  | 12 +++++++-----
  21  3 files changed, 18 insertions(+), 5 deletions(-)
  22
  23 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
  24 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
  25 @@ -90,6 +90,7 @@ struct brcmf_bus_ops {
  26         int (*get_memdump)(struct device *dev, void *data, size_t len);
  27         int (*get_fwname)(struct device *dev, const char *ext,
  28                           unsigned char *fw_name);
  29 +       void (*debugfs_create)(struct device *dev);
  30  };
  31
  32
  33 @@ -235,6 +236,15 @@ int brcmf_bus_get_fwname(struct brcmf_bu
  34         return bus->ops->get_fwname(bus->dev, ext, fw_name);
  35  }
  36
  37 +static inline
  38 +void brcmf_bus_debugfs_create(struct brcmf_bus *bus)
  39 +{
  40 +       if (!bus->ops->debugfs_create)
  41 +               return;
  42 +
  43 +       return bus->ops->debugfs_create(bus->dev);
  44 +}
  45 +
  46  /*
  47   * interface functions from common layer
  48   */
  49 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  50 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  51 @@ -1177,6 +1177,7 @@ static int brcmf_bus_started(struct brcm
  52         brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
  53         brcmf_feat_debugfs_create(drvr);
  54         brcmf_proto_debugfs_create(drvr);
  55 +       brcmf_bus_debugfs_create(bus_if);
  56
  57         return 0;
  58
  59 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  60 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  61 @@ -3143,9 +3143,12 @@ static int brcmf_debugfs_sdio_count_read
  62         return 0;
  63  }
  64
  65 -static void brcmf_sdio_debugfs_create(struct brcmf_sdio *bus)
  66 +static void brcmf_sdio_debugfs_create(struct device *dev)
  67  {
  68 -       struct brcmf_pub *drvr = bus->sdiodev->bus_if->drvr;
  69 +       struct brcmf_bus *bus_if = dev_get_drvdata(dev);
  70 +       struct brcmf_pub *drvr = bus_if->drvr;
  71 +       struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
  72 +       struct brcmf_sdio *bus = sdiodev->bus;
  73         struct dentry *dentry = brcmf_debugfs_get_devdir(drvr);
  74
  75         if (IS_ERR_OR_NULL(dentry))
  76 @@ -3165,7 +3168,7 @@ static int brcmf_sdio_checkdied(struct b
  77         return 0;
  78  }
  79
  80 -static void brcmf_sdio_debugfs_create(struct brcmf_sdio *bus)
  81 +static void brcmf_sdio_debugfs_create(struct device *dev)
  82  {
  83  }
  84  #endif /* DEBUG */
  85 @@ -3477,8 +3480,6 @@ static int brcmf_sdio_bus_preinit(struct
  86         if (bus->rxbuf)
  87                 bus->rxblen = value;
  88
  89 -       brcmf_sdio_debugfs_create(bus);
  90 -
  91         /* the commands below use the terms tx and rx from
  92          * a device perspective, ie. bus:txglom affects the
  93          * bus transfers from device to host.
  94 @@ -4088,6 +4089,7 @@ static const struct brcmf_bus_ops brcmf_
  95         .get_ramsize = brcmf_sdio_bus_get_ramsize,
  96         .get_memdump = brcmf_sdio_bus_get_memdump,
  97         .get_fwname = brcmf_sdio_get_fwname,
  98 +       .debugfs_create = brcmf_sdio_debugfs_create
  99  };
 100
 101  #define BRCMF_SDIO_FW_CODE     0