linux-kernel - [PATCH v2 3/5] bug: When !CONFIG_BUG, make WARN call no

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Message-ID: <770b3955bdcec63564ae09741ae154f8908c22c6.1393385236.git.josh@joshtriplett.org>
Date:	Tue, 25 Feb 2014 19:49:05 -0800
From:	Josh Triplett <josh@...htriplett.org>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/5] bug: When !CONFIG_BUG, make WARN call no_printk to
 check format and args

The stub version of WARN for !CONFIG_BUG completely ignored its format
string and subsequent arguments; make it check them instead, using
no_printk.

Reported-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Josh Triplett <josh@...htriplett.org>
---
 include/asm-generic/bug.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 2d54d8d..a97fa11 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -155,6 +155,7 @@ extern void warn_slowpath_null(const char *file, const int line);
 #ifndef WARN
 #define WARN(condition, format...) ({					\
 	int __ret_warn_on = !!(condition);				\
+	no_printk(format);						\
 	unlikely(__ret_warn_on);					\
 })
 #endif
-- 
1.9.0

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