linux-kernel - [PATCH v2 05/23] linux/printk.h: use DYNAMIC_DEBUG_BRANCH in pr_debug

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Date:   Tue,  9 Oct 2018 13:19:55 +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>,
        Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 05/23] linux/printk.h: use DYNAMIC_DEBUG_BRANCH in pr_debug_ratelimited

pr_debug_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.

Acked-by: Petr Mladek <pmladek@...e.com>
Acked-by: Jason Baron <jbaron@...mai.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 include/linux/printk.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index cf3eccfe1543..d3ba3245531d 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -466,7 +466,7 @@ do {									\
 				      DEFAULT_RATELIMIT_INTERVAL,	\
 				      DEFAULT_RATELIMIT_BURST);		\
 	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt));		\
-	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) &&	\
+	if (DYNAMIC_DEBUG_BRANCH(descriptor) &&				\
 	    __ratelimit(&_rs))						\
 		__dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__);	\
 } while (0)
-- 
2.19.1.3.g1d92a00e68