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arm64: make ll/sc __cmpxchg_case_##name asm consistent

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The ll/sc __cmpxchg_case_##name assembly mostly uses symbolic names for
operands, but in a single case uses %2 to refer to what is otherwise
known as %[v]. This makes the code more painful to read than is
necessary.

Use %[v] instead.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Mark Rutland 2015-08-04 17:27:34 +01:00 committed by Will Deacon
parent 97942c2862
commit 7f08a414f2
1 changed files with 1 additions and 1 deletions
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arch/arm64/include/asm/atomic_ll_sc.h
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@ -181,7 +181,7 @@ __LL_SC_PREFIX(__cmpxchg_case_##name(volatile void *ptr, \
unsigned long tmp, oldval; \
\
asm volatile( \
" prfm pstl1strm, %2\n" \
" prfm pstl1strm, %[v]\n" \
"1: ldxr" #sz "\t%" #w "[oldval], %[v]\n" \
" eor %" #w "[tmp], %" #w "[oldval], %" #w "[old]\n" \
" cbnz %" #w "[tmp], 2f\n" \