[PATCH 12/24] x86: Update _static_cpu_has to use all named variables

From: Peter Zijlstra
Date: Tue Jan 23 2018 - 10:42:57 EST



Requested-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
arch/x86/include/asm/cpufeature.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -153,7 +153,7 @@ static __always_inline __pure bool _stat
".section .altinstructions,\"a\"\n"
" .long 1b - .\n" /* src offset */
" .long 4f - .\n" /* repl offset */
- " .word %P1\n" /* always replace */
+ " .word %P[always]\n" /* always replace */
" .byte 3b - 1b\n" /* src len */
" .byte 5f - 4f\n" /* repl len */
" .byte 3b - 2b\n" /* pad len */
@@ -165,7 +165,7 @@ static __always_inline __pure bool _stat
".section .altinstructions,\"a\"\n"
" .long 1b - .\n" /* src offset */
" .long 0\n" /* no replacement */
- " .word %P0\n" /* feature bit */
+ " .word %P[feature]\n" /* feature bit */
" .byte 3b - 1b\n" /* src len */
" .byte 0\n" /* repl len */
" .byte 0\n" /* pad len */
@@ -176,8 +176,9 @@ static __always_inline __pure bool _stat
" jnz %l[t_yes]\n"
" jmp %l[t_no]\n"
".previous\n"
- : : "i" (bit), "i" (X86_FEATURE_ALWAYS),
- [bitnum] "i" (1 << (bit & 7)),
+ : : [feature] "i" (bit),
+ [always] "i" (X86_FEATURE_ALWAYS),
+ [bitnum] "i" (1 << (bit & 7)),
[cap_byte] "m" (((const char *)boot_cpu_data.x86_capability)[bit >> 3])
: : t_yes, t_no);
t_yes: