linux-kernel - [PATCH 2/8] x86/asm: Make asm/alternative.h safe from assembly

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Message-Id: <e5b693fcef99fe6e80341c9e97a002fb23871e91.1461698311.git.luto@kernel.org>
Date:	Tue, 26 Apr 2016 12:23:25 -0700
From:	Andy Lutomirski <luto@...nel.org>
To:	x86@...nel.org
Cc:	linux-kernel@...r.kernel.org, Borislav Petkov <bp@...en8.de>,
	Brian Gerst <brgerst@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 2/8] x86/asm: Make asm/alternative.h safe from assembly

asm/alternative.h isn't directly useful from assembly, but it
shouldn't break the build.

Signed-off-by: Andy Lutomirski <luto@...nel.org>
---
 arch/x86/include/asm/alternative.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index be4496c961db..e77a6443104f 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_X86_ALTERNATIVE_H
 #define _ASM_X86_ALTERNATIVE_H
 
+#ifndef __ASSEMBLY__
+
 #include <linux/types.h>
 #include <linux/stddef.h>
 #include <linux/stringify.h>
@@ -232,4 +234,6 @@ static inline int alternatives_text_reserved(void *start, void *end)
  */
 #define ASM_NO_INPUT_CLOBBER(clbr...) "i" (0) : clbr
 
+#endif /* __ASSEMBLY__ */
+
 #endif /* _ASM_X86_ALTERNATIVE_H */
-- 
2.5.5