linux-kernel - [RFC PATCH v2 08/12] arm64: cmpxchg: Include build_bug.h instead of bug.h for BUILD

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Date:   Mon, 26 Feb 2018 15:04:56 +0000
From:   Will Deacon <will.deacon@....com>
To:     linux-kernel@...r.kernel.org
Cc:     peterz@...radead.org, mingo@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        yamada.masahiro@...ionext.com, Will Deacon <will.deacon@....com>
Subject: [RFC PATCH v2 08/12] arm64: cmpxchg: Include build_bug.h instead of bug.h for BUILD_BUG

Having asm/cmpxchg.h pull in linux/bug.h is problematic because this
ends up pulling in the atomic bitops which themselves may be built on
top of atomic.h and cmpxchg.h.

Instead, just include build_bug.h for the definition of BUILD_BUG.

Signed-off-by: Will Deacon <will.deacon@....com>
---
 arch/arm64/include/asm/cmpxchg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index ae852add053d..bc9e07bc6428 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -18,7 +18,7 @@
 #ifndef __ASM_CMPXCHG_H
 #define __ASM_CMPXCHG_H
 
-#include <linux/bug.h>
+#include <linux/build_bug.h>
 
 #include <asm/atomic.h>
 #include <asm/barrier.h>
-- 
2.1.4