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| author | Guo Ren <guoren@linux.alibaba.com> | 2022-05-05 11:55:23 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-21 10:31:46 -0700 |
| commit | 1d7f6932c522ea95668e14265175ce3d753d0c24 (patch) | |
| tree | 1e086c935a6ee78823da19e88172fcacb5172800 /scripts/patch-kernel | |
| parent | riscv: atomic: Cleanup unnecessary definition (diff) | |
| download | linux-1d7f6932c522ea95668e14265175ce3d753d0c24.tar.gz linux-1d7f6932c522ea95668e14265175ce3d753d0c24.zip | |
riscv: atomic: Optimize dec_if_positive functions
Current implementation wastes another register to pass the
argument, but we only need addi to calculate the result. Optimize
the code with minimize the usage of registers.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20220505035526.2974382-3-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions