brcmfmac: modify __brcmf_err() to take bus as a parameter

So far __brcmf_err() was using pr_err() which didn't allow identifying
device that was affected by an error. It's crucial for systems with more
than 1 device supported by brcmfmac (a common case for home routers).

This change allows passing struct brcmf_bus to the __brcmf_err(). That
struct has been agreed to be the most common one. It allows accessing
struct device easily & using dev_err() printing helper.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index 0ce1d81..c62009a 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -350,7 +350,7 @@ done:
 }
 
 #ifndef CONFIG_BRCM_TRACING
-void __brcmf_err(const char *func, const char *fmt, ...)
+void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...)
 {
        struct va_format vaf;
        va_list args;
@@ -359,7 +359,10 @@ void __brcmf_err(const char *func, const char *fmt, ...)
 
        vaf.fmt = fmt;
        vaf.va = &args;
-       pr_err("%s: %pV", func, &vaf);
+       if (bus)
+               dev_err(bus->dev, "%s: %pV", func, &vaf);
+       else
+               pr_err("%s: %pV", func, &vaf);
 
        va_end(args);
 }

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
index cfed062..b499f90 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
@@ -45,8 +45,10 @@
 #undef pr_fmt
 #define pr_fmt(fmt)            KBUILD_MODNAME ": " fmt
 
-__printf(2, 3)
-void __brcmf_err(const char *func, const char *fmt, ...);
+struct brcmf_bus;
+
+__printf(3, 4)
+void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...);
 /* Macro for error messages. When debugging / tracing the driver all error
  * messages are important to us.
  */
@@ -55,7 +57,7 @@ void __brcmf_err(const char *func, const char *fmt, ...);
                if (IS_ENABLED(CONFIG_BRCMDBG) ||                       \
                    IS_ENABLED(CONFIG_BRCM_TRACING) ||                  \
                    net_ratelimit())                                    \
-                       __brcmf_err(__func__, fmt, ##__VA_ARGS__);      \
+                       __brcmf_err(NULL, __func__, fmt, ##__VA_ARGS__);\
        } while (0)
 
 #if defined(DEBUG) || defined(CONFIG_BRCM_TRACING)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c
index fe67559..a5c271b 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c
@@ -14,14 +14,16 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <linux/device.h>
 #include <linux/module.h> /* bug in tracepoint.h, it should include this */
 
 #ifndef __CHECKER__
 #define CREATE_TRACE_POINTS
+#include "bus.h"
 #include "tracepoint.h"
 #include "debug.h"
 
-void __brcmf_err(const char *func, const char *fmt, ...)
+void __brcmf_err(struct brcmf_bus *bus, const char *func, const char *fmt, ...)
 {
        struct va_format vaf = {
                .fmt = fmt,
@@ -30,7 +32,10 @@ void __brcmf_err(const char *func, const char *fmt, ...)
 
        va_start(args, fmt);
        vaf.va = &args;
-       pr_err("%s: %pV", func, &vaf);
+       if (bus)
+               dev_err(bus->dev, "%s: %pV", func, &vaf);
+       else
+               pr_err("%s: %pV", func, &vaf);
        trace_brcmf_err(func, &vaf);
        va_end(args);
 }