]> git.karo-electronics.de Git - karo-tx-linux.git/commit
do not export kernel's NULL #define to userspace
authorLubos Lunak <l.lunak@suse.cz>
Wed, 21 Mar 2012 13:08:24 +0000 (14:08 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 14 Apr 2012 14:47:49 +0000 (07:47 -0700)
commit2084c24a81413b75bc97e4bee56b32ffece70460
tree299c0e84719c352eea4c79db560912f858b08b33
parent668ce0ac707719d866af7e432e518af7b4c575ad
do not export kernel's NULL #define to userspace

GCC's NULL is actually __null, which allows detecting some questionable
NULL usage and warn about it.  Moreover each platform/compiler should
have its own stddef.h anyway (which is different from linux/stddef.h).

So there's no good reason to leak kernel's NULL to userspace and
override what the compiler provides.

Signed-off-by: Luboš Luňák <l.lunak@suse.cz>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/stddef.h