Commit-ID: 7ab152470e8416ef2a44c800fdc157e2192f2974
Gitweb: http://git.kernel.org/tip/7ab152470e8416ef2a44c800fdc157e2192f2974
Author: "Cyrill Gorcunov" <gorcunov@xxxxxxxxx>
AuthorDate: Fri, 6 Mar 2009 19:08:34 +0300
Commit: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 6 Mar 2009 17:14:12 +0100
x86: linkage.h - guard assembler specifics by __ASSEMBLY__
Stephen Rothwell reported:
|Today's linux-next build (x86_64 allmodconfig) produced this warning:
|
|In file included from drivers/char/epca.c:49:
|drivers/char/digiFep1.h:7:1: warning: "GLOBAL" redefined
|In file included from include/linux/linkage.h:5,
| from include/linux/kernel.h:11,
| from arch/x86/include/asm/system.h:10,
| from arch/x86/include/asm/processor.h:17,
| from include/linux/prefetch.h:14,
| from include/linux/list.h:6,
| from include/linux/module.h:9,
| from drivers/char/epca.c:29:
|arch/x86/include/asm/linkage.h:55:1: warning: this is the location of the previous definition
|
|Probably introduced by commit 95695547a7db44b88a7ee36cf5df188de267e99e
|("x86: asm linkage - introduce GLOBAL macro") from the x86 tree.
Any assembler specific snippets being placed in headers
are to be protected by __ASSEMBLY__. Fixed.
Also move __ALIGN definition under the same protection as well.
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
LKML-Reference: <20090306160833.GB7420@localhost>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/include/asm/linkage.h | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 9320e2a..a0d70b4 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -4,11 +4,6 @@
#undef notrace
#define notrace __attribute__((no_instrument_function))
-#ifdef CONFIG_X86_64
-#define __ALIGN .p2align 4,,15
-#define __ALIGN_STR ".p2align 4,,15"
-#endif
-
#ifdef CONFIG_X86_32
#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
/*
@@ -50,16 +45,25 @@
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
"g" (arg4), "g" (arg5), "g" (arg6))
-#endif
+#endif /* CONFIG_X86_32 */
+
+#ifdef __ASSEMBLY__
#define GLOBAL(name) \
.globl name; \
name:
+#ifdef CONFIG_X86_64
+#define __ALIGN .p2align 4,,15
+#define __ALIGN_STR ".p2align 4,,15"
+#endif
+
#ifdef CONFIG_X86_ALIGNMENT_16
#define __ALIGN .align 16,0x90
#define __ALIGN_STR ".align 16,0x90"
#endif
+#endif /* __ASSEMBLY__ */
+
#endif /* _ASM_X86_LINKAGE_H */
--
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