From e3dc747804eff4777d7bbc3eacc463910134fea8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 9 Oct 2009 00:01:39 -0700 Subject: [PATCH] include/linux/compiler-gcc4.h: Fix build bug - gcc-4.0.2 doesn't understand __builtin_object_size Maybe 4.1.0 doesn't too, but this fixed it for me. Caused by: 0918485: x86: Turn the copy_from_user check into an (optional) compile time warning 3bc6066: x86: Use __builtin_object_size() to validate the buffer size for copy_from_user() Signed-off-by: Andrew Morton Cc: Arjan van de Ven LKML-Reference: <200910090724.n997OQl6013538@imap1.linux-foundation.org> Signed-off-by: Ingo Molnar --- include/linux/compiler-gcc4.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h index 77542c57e20a4..e6ef279ca20c4 100644 --- a/include/linux/compiler-gcc4.h +++ b/include/linux/compiler-gcc4.h @@ -38,7 +38,9 @@ #endif +#if __GNUC_MINOR__ > 0 #define __compiletime_object_size(obj) __builtin_object_size(obj, 0) +#endif #if __GNUC_MINOR__ >= 4 #define __compiletime_warning(message) __attribute__((warning(message))) #define __compiletime_error(message) __attribute__((error(message))) -- 2.39.5