From b701a47ba48b698976fb2fe05fb285b0edc1d26a Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 29 Apr 2010 16:03:57 -0700 Subject: [PATCH] x86: Fix LOCK_PREFIX_HERE for uniprocessor build Checkin b3ac891b67bd4b1fc728d1c784cad1212dea433d: x86: Add support for lock prefix in alternatives ... did not define LOCK_PREFIX_HERE in the case of a uniprocessor build. As a result, it would cause any of the usages of this macro to fail on a uniprocessor build. Fix this by defining LOCK_PREFIX_HERE as a null string. Signed-off-by: H. Peter Anvin Cc: Luca Barbieri LKML-Reference: <1267005265-27958-2-git-send-email-luca@luca-barbieri.com> --- arch/x86/include/asm/alternative.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 55fee12cea6d..e29a6c9bba00 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -38,6 +38,7 @@ #define LOCK_PREFIX LOCK_PREFIX_HERE "\n\tlock; " #else /* ! CONFIG_SMP */ +#define LOCK_PREFIX_HERE "" #define LOCK_PREFIX "" #endif -- 2.11.0