linux-kernel - [PATCH] mips: bug: add unlikely() to BUG

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Date:   Fri,  7 Sep 2018 21:03:02 +0300
From:   Igor Stoppa <igor.stoppa@...il.com>
To:     David Daney <ddaney@...iumnetworks.com>
Cc:     igor.stoppa@...il.com, Igor Stoppa <igor.stoppa@...wei.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>, linux-mips@...ux-mips.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mips: bug: add unlikely() to BUG_ON()

Add a hint to the compiler that probably it won't be necessary to BUG()

Signed-off-by: Igor Stoppa <igor.stoppa@...wei.com>
Cc: David Daney <ddaney@...iumnetworks.com>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Paul Burton <paul.burton@...s.com>
Cc: James Hogan <jhogan@...nel.org>
Cc: linux-mips@...ux-mips.org
Cc: linux-kernel@...r.kernel.org
---
 arch/mips/include/asm/bug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/bug.h b/arch/mips/include/asm/bug.h
index 745dc160a069..02101b54aec2 100644
--- a/arch/mips/include/asm/bug.h
+++ b/arch/mips/include/asm/bug.h
@@ -31,7 +31,7 @@ static inline void  __BUG_ON(unsigned long condition)
 			     : : "r" (condition), "i" (BRK_BUG));
 }
 
-#define BUG_ON(C) __BUG_ON((unsigned long)(C))
+#define BUG_ON(C) __BUG_ON(unlikely((unsigned long)(C)))
 
 #define HAVE_ARCH_BUG_ON
 
-- 
2.17.1