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| author | Jan Beulich <JBeulich@novell.com> | 2009-05-11 19:49:28 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-05-11 19:54:33 +0400 |
| commit | 3c598766a2bae1b208470e7cc934ac462561e3cb (patch) | |
| tree | 3119bfbff3966146843b407eefc793db0da89064 /arch/x86 | |
| parent | 917a0153621572e88aeb2d5df025ad2e81027287 (diff) | |
| download | linux-3c598766a2bae1b208470e7cc934ac462561e3cb.tar.xz | |
x86: fix percpu_{to,from}_op()
- the byte operand constraints were wrong for 32-bit
- the to-op's input operands weren't properly parenthesized
[ Impact: fix possible miscompilation or build failure ]
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/percpu.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index aee103b26d01..02ecb30982a3 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -82,22 +82,22 @@ do { \ case 1: \ asm(op "b %1,"__percpu_arg(0) \ : "+m" (var) \ - : "ri" ((T__)val)); \ + : "qi" ((T__)(val))); \ break; \ case 2: \ asm(op "w %1,"__percpu_arg(0) \ : "+m" (var) \ - : "ri" ((T__)val)); \ + : "ri" ((T__)(val))); \ break; \ case 4: \ asm(op "l %1,"__percpu_arg(0) \ : "+m" (var) \ - : "ri" ((T__)val)); \ + : "ri" ((T__)(val))); \ break; \ case 8: \ asm(op "q %1,"__percpu_arg(0) \ : "+m" (var) \ - : "re" ((T__)val)); \ + : "re" ((T__)(val))); \ break; \ default: __bad_percpu_size(); \ } \ @@ -109,7 +109,7 @@ do { \ switch (sizeof(var)) { \ case 1: \ asm(op "b "__percpu_arg(1)",%0" \ - : "=r" (ret__) \ + : "=q" (ret__) \ : "m" (var)); \ break; \ case 2: \ |