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Date: Fri, 31 Aug 2018 01:34:09 +0300 From: Igor Stoppa <igor.stoppa@...il.com> To: linux-kernel@...r.kernel.org Cc: igor.stoppa@...il.com, Igor Stoppa <igor.stoppa@...wei.com>, Arnd Bergmann <arnd@...db.de> Subject: [PATCH 03/23] asm-generic: bug: add unlikely() to BUG_ON() Add a hint to the compiler. If BUG_ON() is used instead of BUG(), it means that probably the preferred outcome is to not BUG(). Signed-off-by: Igor Stoppa <igor.stoppa@...wei.com> Cc: Arnd Bergmann <arnd@...db.de> --- include/asm-generic/bug.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 20561a60db9c..34c48444c942 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -183,7 +183,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint, #endif #ifndef HAVE_ARCH_BUG_ON -#define BUG_ON(condition) do { if (condition) BUG(); } while (0) +#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0) #endif #ifndef HAVE_ARCH_WARN_ON -- 2.17.1
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