package/kernel/mac80211/patches/brcm/344-v5.1-brcmfmac-modify-__brcmf_err-to-take-bus-as-a-paramet.patch

   1 From 5cc898fbcb352b764f8d51c16e10e2eb0056173d Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Wed, 6 Feb 2019 12:28:15 +0100
   4 Subject: [PATCH] brcmfmac: modify __brcmf_err() to take bus as a parameter
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 So far __brcmf_err() was using pr_err() which didn't allow identifying
  10 device that was affected by an error. It's crucial for systems with more
  11 than 1 device supported by brcmfmac (a common case for home routers).
  12
  13 This change allows passing struct brcmf_bus to the __brcmf_err(). That
  14 struct has been agreed to be the most common one. It allows accessing
  15 struct device easily & using dev_err() printing helper.
  16
  17 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  18 Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  19 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  20 ---
  21  .../net/wireless/broadcom/brcm80211/brcmfmac/common.c    | 7 +++++--
  22  drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h | 8 +++++---
  23  .../wireless/broadcom/brcm80211/brcmfmac/tracepoint.c    | 9 +++++++--
  24  3 files changed, 17 insertions(+), 7 deletions(-)
  25
  26 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
  27 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
  28 @@ -350,7 +350,7 @@ done:
  29  }
  30
  31  #ifndef CPTCFG_BRCM_TRACING
  32 -void __brcmf_err(const char *func, const char *fmt, ...)
  33 +void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...)
  34  {
  35         struct va_format vaf;
  36         va_list args;
  37 @@ -359,7 +359,10 @@ void __brcmf_err(const char *func, const
  38
  39         vaf.fmt = fmt;
  40         vaf.va = &args;
  41 -       pr_err("%s: %pV", func, &vaf);
  42 +       if (bus)
  43 +               dev_err(bus->dev, "%s: %pV", func, &vaf);
  44 +       else
  45 +               pr_err("%s: %pV", func, &vaf);
  46
  47         va_end(args);
  48  }
  49 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
  50 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
  51 @@ -45,8 +45,10 @@
  52  #undef pr_fmt
  53  #define pr_fmt(fmt)            KBUILD_MODNAME ": " fmt
  54
  55 -__printf(2, 3)
  56 -void __brcmf_err(const char *func, const char *fmt, ...);
  57 +struct brcmf_bus;
  58 +
  59 +__printf(3, 4)
  60 +void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...);
  61  /* Macro for error messages. When debugging / tracing the driver all error
  62   * messages are important to us.
  63   */
  64 @@ -55,7 +57,7 @@ void __brcmf_err(const char *func, const
  65                 if (IS_ENABLED(CPTCFG_BRCMDBG) ||                       \
  66                     IS_ENABLED(CPTCFG_BRCM_TRACING) ||                  \
  67                     net_ratelimit())                                    \
  68 -                       __brcmf_err(__func__, fmt, ##__VA_ARGS__);      \
  69 +                       __brcmf_err(NULL, __func__, fmt, ##__VA_ARGS__);\
  70         } while (0)
  71
  72  #if defined(DEBUG) || defined(CPTCFG_BRCM_TRACING)
  73 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c
  74 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c
  75 @@ -14,14 +14,16 @@
  76   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  77   */
  78
  79 +#include <linux/device.h>
  80  #include <linux/module.h> /* bug in tracepoint.h, it should include this */
  81
  82  #ifndef __CHECKER__
  83  #define CREATE_TRACE_POINTS
  84 +#include "bus.h"
  85  #include "tracepoint.h"
  86  #include "debug.h"
  87
  88 -void __brcmf_err(const char *func, const char *fmt, ...)
  89 +void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...)
  90  {
  91         struct va_format vaf = {
  92                 .fmt = fmt,
  93 @@ -30,7 +32,10 @@ void __brcmf_err(const char *func, const
  94
  95         va_start(args, fmt);
  96         vaf.va = &args;
  97 -       pr_err("%s: %pV", func, &vaf);
  98 +       if (bus)
  99 +               dev_err(bus->dev, "%s: %pV", func, &vaf);
 100 +       else
 101 +               pr_err("%s: %pV", func, &vaf);
 102         trace_brcmf_err(func, &vaf);
 103         va_end(args);
 104  }