Patch "net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-don-t-forget-pr_fmt-on-net_dbg_ratelimited-for-config_dynamic_debug.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: "Jason A. Donenfeld" <[email protected]>
Date: Wed, 15 Jun 2016 11:14:53 +0200
Subject: net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG

From: "Jason A. Donenfeld" <[email protected]>

[ Upstream commit daddef76c3deaaa7922f9d7b18edbf0a061215c3 ]

The implementation of net_dbg_ratelimited in the CONFIG_DYNAMIC_DEBUG case was added with 2c94b5373 ("net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case"). The implementation strategy was to take the usual definition of the dynamic_pr_debug macro, but alter it by adding a call to "net_ratelimit()" in the if statement. This is, in fact, the correct approach.

However, while doing this, the author of the commit forgot to surround fmt by pr_fmt, resulting in unprefixed log messages appearing in the console. So, this commit adds back the pr_fmt(fmt) invocation, making net_dbg_ratelimited properly consistent across DEBUG, no DEBUG, and DYNAMIC_DEBUG cases, and bringing parity with the behavior of dynamic_pr_debug as well.

---
 include/linux/net.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -251,7 +251,8 @@ do {									\
 	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);			\
 	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) &&	\
 	    net_ratelimit())						\
-		__dynamic_pr_debug(&descriptor, fmt, ##__VA_ARGS__);	\
+		__dynamic_pr_debug(&descriptor, pr_fmt(fmt),		\
+		                   ##__VA_ARGS__);			\
 } while (0)
 #elif defined(DEBUG)
 #define net_dbg_ratelimited(fmt, ...)				\

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/net-don-t-forget-pr_fmt-on-net_dbg_ratelimited-for-config_dynamic_debug.patch