linux-kernel - [PATCH] x86/paravirt: return full 64-bit result

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Date:	Tue, 03 Feb 2009 16:00:38 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Xen-devel <xen-devel@...ts.xensource.com>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: [PATCH] x86/paravirt: return full 64-bit result

A hunk went missing in the original patch, and callee-save callsites were
not marked as returning the upper 32-bit of result, causing Badness.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 arch/x86/include/asm/paravirt.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

===================================================================
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -522,7 +522,7 @@
 					"=c" (__ecx)
 #define PVOP_CALL_CLOBBERS		PVOP_VCALL_CLOBBERS
 
-#define PVOP_VCALLEE_CLOBBERS		"=a" (__eax)
+#define PVOP_VCALLEE_CLOBBERS		"=a" (__eax), "=d" (__edx)
 #define PVOP_CALLEE_CLOBBERS		PVOP_VCALLEE_CLOBBERS
 
 #define EXTRA_CLOBBERS


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