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Red Hat Bugzilla – Attachment 574671 Details for
Bug 809014
strange build error with ndiswrapper on i686
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[patch]
Proposed fix
fix.patch (text/plain), 1.00 KB, created by
Jeremy Fitzhardinge
on 2012-04-02 23:06:24 UTC
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Description:
Proposed fix
Filename:
MIME Type:
Creator:
Jeremy Fitzhardinge
Created:
2012-04-02 23:06:24 UTC
Size:
1.00 KB
patch
obsolete
>From 7b8ed6e628e874a27abae309a1308d86bcefc7f5 Mon Sep 17 00:00:00 2001 >From: Jeremy Fitzhardinge <jeremy@goop.org> >Date: Mon, 2 Apr 2012 16:02:10 -0700 >Subject: [PATCH] x86: use 'q' constraint for byte operands on xchg macro > >x86-64 can access the low half of any register, but i386 can only do >it with a subset of registers. 'r' causes compilation failures on i386, >but 'q' expresses the constraint properly. > >Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> >Reported-by: Leigh Scott <leigh123linux@googlemail.com> > >diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h >index b3b7332..bc18d0e 100644 >--- a/arch/x86/include/asm/cmpxchg.h >+++ b/arch/x86/include/asm/cmpxchg.h >@@ -43,7 +43,7 @@ extern void __add_wrong_size(void) > switch (sizeof(*(ptr))) { \ > case __X86_CASE_B: \ > asm volatile (lock #op "b %b0, %1\n" \ >- : "+r" (__ret), "+m" (*(ptr)) \ >+ : "+q" (__ret), "+m" (*(ptr)) \ > : : "memory", "cc"); \ > break; \ > case __X86_CASE_W: \
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bug 809014
: 574671