linux-kernel - [PATCH] Kbuild: Disable the -Wformat-security gcc flag

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Date:	Mon, 15 Jun 2009 08:54:02 +0300 (EEST)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	Floris Kraak <randakar@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Trivial Patch Monkey <trivial@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH] Kbuild: Disable the -Wformat-security gcc flag

From: Floris Kraak <randakar@...il.com>

Some distributions have enabled the gcc flag -Wformat-security by default.
This results in a number of warnings about format arguments to functions,
sometimes in cases where fixing the warning is not likely to actually fix a
bug.  Instead of hand patching a dozens of places (possibly more) that produce
warnings that get ignored anyway we just turn off the flag in the Makefile.

Signed-off-by: Floris Kraak <randakar@...il.com>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
 Makefile |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/Makefile b/Makefile
index 03373bb..5ef1f72 100644
--- a/Makefile
+++ b/Makefile
@@ -351,7 +351,8 @@ KBUILD_CPPFLAGS := -D__KERNEL__
 
 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common \
-		   -Werror-implicit-function-declaration
+		   -Werror-implicit-function-declaration \
+		   -Wno-format-security
 KBUILD_AFLAGS   := -D__ASSEMBLY__
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
-- 
1.6.0.4

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