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x86, asm: Use CC_SET()/CC_OUT() in <asm/percpu.h>
author
H. Peter Anvin
<hpa@zytor.com>
Wed, 8 Jun 2016 19:38:43 +0000
(12:38 -0700)
committer
H. Peter Anvin
<hpa@linux.intel.com>
Wed, 8 Jun 2016 19:41:20 +0000
(12:41 -0700)
Remove open-coded uses of set instructions to use CC_SET()/CC_OUT() in
<asm/percpu.h>.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link:
http://lkml.kernel.org/r/1465414726-197858-8-git-send-email-hpa@linux.intel.com
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
arch/x86/include/asm/percpu.h
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diff --git
a/arch/x86/include/asm/percpu.h
b/arch/x86/include/asm/percpu.h
index 184d7f3ecb9f7de55444596f396e1bc0332d2bed..e02e3f80d363bbb87d8db6c74b2a0d5370818419 100644
(file)
--- a/
arch/x86/include/asm/percpu.h
+++ b/
arch/x86/include/asm/percpu.h
@@
-511,8
+511,9
@@
do { \
#define x86_test_and_clear_bit_percpu(bit, var) \
({ \
bool old__; \
- asm volatile("btr %2,"__percpu_arg(1)"\n\tsetc %0" \
- : "=qm" (old__), "+m" (var) \
+ asm volatile("btr %2,"__percpu_arg(1)"\n\t" \
+ CC_SET(c) \
+ : CC_OUT(c) (old__), "+m" (var) \
: "dIr" (bit)); \
old__; \
})
@@
-535,8
+536,8
@@
static inline bool x86_this_cpu_variable_test_bit(int nr,
bool oldbit;
asm volatile("bt "__percpu_arg(2)",%1\n\t"
- "setc %0"
- :
"=qm"
(oldbit)
+ CC_SET(c)
+ :
CC_OUT(c)
(oldbit)
: "m" (*(unsigned long *)addr), "Ir" (nr));
return oldbit;
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