LoongArch: BPF: Split unconditional branch JA paths statically

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In build_insn(), both 32-bit and 64-bit unconditional branch JA paths
currently share a single case block. It relies on a runtime condition
check to multiplex between the 'off' and 'imm' fields.

Since the instruction classes are already resolved at compile-time via
distinct switch-case labels, this runtime check is redundant.

Split the two paths into individual case blocks to remove the redundant
runtime check.

Acked-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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Tiezhu Yang 2026-08-17 22:07:39 +08:00 • committed by Huacai Chen

parent 252ae40ba9

commit 9fcdba3423

1 changed files with 5 additions and 4 deletions

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arch/loongarch/net/bpf_jit.c

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