On Fri, Sep 28, 2018 at 10:33:05AM +0200, Uros Bizjak wrote:
> Remove open-coded uses of set instructions to use CC_SET()/CC_OUT()
> for __cmpxchg_double.
>
> Signed-off-by: Uros Bizjak <ubiz...@gmail.com>
> ---
> arch/x86/include/asm/cmpxchg.h | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
> index a55d79b233d3..bfb85e5844ab 100644
> --- a/arch/x86/include/asm/cmpxchg.h
> +++ b/arch/x86/include/asm/cmpxchg.h
> @@ -242,10 +242,12 @@ extern void __add_wrong_size(void)
> BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \
> VM_BUG_ON((unsigned long)(p1) % (2 * sizeof(long))); \
> VM_BUG_ON((unsigned long)((p1) + 1) != (unsigned long)(p2)); \
> - asm volatile(pfx "cmpxchg%c4b %2; sete %0" \
> - : "=a" (__ret), "+d" (__old2), \
> - "+m" (*(p1)), "+m" (*(p2)) \
> - : "i" (2 * sizeof(long)), "a" (__old1), \
> + asm volatile(pfx "cmpxchg%c5b %1" \
> + CC_SET(e) \
> + : CC_OUT(e) (__ret), \
> + "+m" (*(p1)), "+m" (*(p2)), \
> + "+a" (__old1), "+d" (__old2) \
> + : "i" (2 * sizeof(long)), \
To quote checkpatch:
WARNING: please, no spaces at the start of a line
#34: FILE: arch/x86/include/asm/cmpxchg.h:245:
+ asm volatile(pfx "cmpxchg%c5b %1" \$
ERROR: code indent should use tabs where possible
#35: FILE: arch/x86/include/asm/cmpxchg.h:246:
+ CC_SET(e) \$
WARNING: please, no spaces at the start of a line
#35: FILE: arch/x86/include/asm/cmpxchg.h:246:
+ CC_SET(e) \$
ERROR: code indent should use tabs where possible
#36: FILE: arch/x86/include/asm/cmpxchg.h:247:
+ : CC_OUT(e) (__ret), \$
...
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
