linux-kernel - [PATCH 01/22] linux/device.h: use DYNAMIC_DEBUG_BRANCH in dev_dbg

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Message-Id: <20180919220444.23190-2-linux@rasmusvillemoes.dk>
Date:   Thu, 20 Sep 2018 00:04:23 +0200
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     Jason Baron <jbaron@...mai.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 01/22] linux/device.h: use DYNAMIC_DEBUG_BRANCH in dev_dbg_ratelimited

dev_dbg_ratelimited tests the dynamic debug descriptor the old-fashioned
way, and doesn't utilize the static key/jump label implementation on
architectures that HAVE_JUMP_LABEL. Use the DYNAMIC_DEBUG_BRANCH which
is defined appropriately.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 include/linux/device.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/device.h b/include/linux/device.h
index 8f882549edee..0d8ed2adfc73 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1503,7 +1503,7 @@ do {									\
 				      DEFAULT_RATELIMIT_INTERVAL,	\
 				      DEFAULT_RATELIMIT_BURST);		\
 	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);			\
-	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) &&	\
+	if (DYNAMIC_DEBUG_BRANCH(descriptor) &&				\
 	    __ratelimit(&_rs))						\
 		__dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt),	\
 				  ##__VA_ARGS__);			\
-- 
2.16.4