From: Arjan van de Ven <arjan@infradead.org>
Date: Fri, 2 Oct 2009 14:50:50 +0000 (-0700)
Subject: x86: Add a Kconfig option to turn the copy_from_user warnings into errors
X-Git-Tag: v2.6.33-rc1~396^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63312b6a6faae3f2e5577f2b001e3b504f10a2aa;p=pandora-kernel.git

x86: Add a Kconfig option to turn the copy_from_user warnings into errors

For automated testing it is useful to have the option to turn
the warnings on copy_from_user() etc checks into errors:

 In function ‘copy_from_user’,
     inlined from ‘fd_copyin’ at drivers/block/floppy.c:3080,
     inlined from ‘fd_ioctl’ at drivers/block/floppy.c:3503:
   linux/arch/x86/include/asm/uaccess_32.h:213:
  error: call to ‘copy_from_user_overflow’ declared with attribute error:
  copy_from_user buffer size is not provably correct

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <20091002075050.4e9f7641@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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