diff options
| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2023-01-17 11:42:16 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-01-17 11:42:16 +0800 |
| commit | 2959fce7fdb73fc784aefd58cc34b1ba700826aa (patch) | |
| tree | 36e908ae88eb32480cddd35fc422c8d2df2fbc62 /arch/loongarch/kernel | |
| parent | d52fec86a465355b379e839fa372ead0334d62e6 (diff) | |
LoongArch: Use common function sign_extend64()
There exists a common function sign_extend64() to sign extend a 64-bit
value using specified bit as sign-bit in include/linux/bitops.h, it is
more efficient, let us use it and remove the arch-specific sign_extend()
under arch/loongarch.
Suggested-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel')
| -rw-r--r-- | arch/loongarch/kernel/alternative.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/loongarch/kernel/alternative.c b/arch/loongarch/kernel/alternative.c index c5aebeac960b..4ad13847e962 100644 --- a/arch/loongarch/kernel/alternative.c +++ b/arch/loongarch/kernel/alternative.c @@ -74,7 +74,7 @@ static void __init_or_module recompute_jump(union loongarch_instruction *buf, switch (src->reg0i26_format.opcode) { case b_op: case bl_op: - jump_addr = cur_pc + sign_extend((si_h << 16 | si_l) << 2, 27); + jump_addr = cur_pc + sign_extend64((si_h << 16 | si_l) << 2, 27); if (in_alt_jump(jump_addr, start, end)) return; offset = jump_addr - pc; @@ -93,7 +93,7 @@ static void __init_or_module recompute_jump(union loongarch_instruction *buf, fallthrough; case beqz_op: case bnez_op: - jump_addr = cur_pc + sign_extend((si_h << 16 | si_l) << 2, 22); + jump_addr = cur_pc + sign_extend64((si_h << 16 | si_l) << 2, 22); if (in_alt_jump(jump_addr, start, end)) return; offset = jump_addr - pc; @@ -112,7 +112,7 @@ static void __init_or_module recompute_jump(union loongarch_instruction *buf, case bge_op: case bltu_op: case bgeu_op: - jump_addr = cur_pc + sign_extend(si << 2, 17); + jump_addr = cur_pc + sign_extend64(si << 2, 17); if (in_alt_jump(jump_addr, start, end)) return; offset = jump_addr - pc; |