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riscv/atomic.h: use RISCV_FULL_BARRIER in _arch_atomic* function.

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Replace the same code with the pre-defined macro
RISCV_FULL_BARRIER to simplify the code.

Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn>
Link: https://patch.msgid.link/20251120095831.64211-1-min_halo@163.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
This commit is contained in:
Zongmin Zhou 2025-11-20 17:58:31 +08:00 committed by Paul Walmsley
parent 6118ebed3b
commit f02dd25472
1 changed files with 4 additions and 4 deletions
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8
arch/riscv/include/asm/atomic.h
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@ -203,7 +203,7 @@ ATOMIC_OPS(xor, xor, i)
" add %[rc], %[p], %[a]\n" \
" sc." sfx ".rl %[rc], %[rc], %[c]\n" \
" bnez %[rc], 0b\n" \
" fence rw, rw\n" \
RISCV_FULL_BARRIER \
"1:\n" \
: [p]"=&r" (_prev), [rc]"=&r" (_rc), [c]"+A" (counter) \
: [a]"r" (_a), [u]"r" (_u) \
@ -242,7 +242,7 @@ static __always_inline s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a,
" addi %[rc], %[p], 1\n" \
" sc." sfx ".rl %[rc], %[rc], %[c]\n" \
" bnez %[rc], 0b\n" \
" fence rw, rw\n" \
RISCV_FULL_BARRIER \
"1:\n" \
: [p]"=&r" (_prev), [rc]"=&r" (_rc), [c]"+A" (counter) \
: \
@ -268,7 +268,7 @@ static __always_inline bool arch_atomic_inc_unless_negative(atomic_t *v)
" addi %[rc], %[p], -1\n" \
" sc." sfx ".rl %[rc], %[rc], %[c]\n" \
" bnez %[rc], 0b\n" \
" fence rw, rw\n" \
RISCV_FULL_BARRIER \
"1:\n" \
: [p]"=&r" (_prev), [rc]"=&r" (_rc), [c]"+A" (counter) \
: \
@ -294,7 +294,7 @@ static __always_inline bool arch_atomic_dec_unless_positive(atomic_t *v)
" bltz %[rc], 1f\n" \
" sc." sfx ".rl %[rc], %[rc], %[c]\n" \
" bnez %[rc], 0b\n" \
" fence rw, rw\n" \
RISCV_FULL_BARRIER \
"1:\n" \
: [p]"=&r" (_prev), [rc]"=&r" (_rc), [c]"+A" (counter) \
: \