Dynamic debug: fix pr_fmt() build error

When CONFIG_DYNAMIC_DEBUG is enabled, allow callers of pr_debug()
to provide their own definition of pr_fmt() even if that definition
uses tricks like

#define pr_fmt(fmt) "%s:" fmt, __func__

Signed-off-by: Greg Banks <gnb@sgi.com>
Cc: Jason Baron <jbaron@redhat.com>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index b5496ecbec71..914918abfdd1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -359,8 +359,9 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
 #define pr_debug(fmt, ...) \
         printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #elif defined(CONFIG_DYNAMIC_DEBUG)
+/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
 #define pr_debug(fmt, ...) do { \
-        dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
+        dynamic_pr_debug(fmt, ##__VA_ARGS__); \
         } while (0)
 #else
 #define pr_debug(fmt, ...) \