diff options
| author | Xu Kuohai <xukuohai@huawei.com> | 2023-08-15 18:41:55 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-08-18 16:46:09 +0300 |
| commit | 1104247f3f97916f0afc29b73112c97affbfdbd2 (patch) | |
| tree | f099b200c58934ce478aa66189a894ea6c24b535 /arch/arm64/net | |
| parent | bb0a1d6b49cb8293b09d290536315b4a134ef1e7 (diff) | |
| download | linux-1104247f3f97916f0afc29b73112c97affbfdbd2.tar.xz | |
bpf, arm64: Support unconditional bswap
Add JIT support for unconditional bswap instructions.
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Florent Revest <revest@chromium.org>
Acked-by: Florent Revest <revest@chromium.org>
Link: https://lore.kernel.org/bpf/20230815154158.717901-5-xukuohai@huaweicloud.com
Diffstat (limited to 'arch/arm64/net')
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 9b796e74ef42..1d35acb880dc 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -855,11 +855,12 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, /* dst = BSWAP##imm(dst) */ case BPF_ALU | BPF_END | BPF_FROM_LE: case BPF_ALU | BPF_END | BPF_FROM_BE: + case BPF_ALU64 | BPF_END | BPF_FROM_LE: #ifdef CONFIG_CPU_BIG_ENDIAN - if (BPF_SRC(code) == BPF_FROM_BE) + if (BPF_CLASS(code) == BPF_ALU && BPF_SRC(code) == BPF_FROM_BE) goto emit_bswap_uxt; #else /* !CONFIG_CPU_BIG_ENDIAN */ - if (BPF_SRC(code) == BPF_FROM_LE) + if (BPF_CLASS(code) == BPF_ALU && BPF_SRC(code) == BPF_FROM_LE) goto emit_bswap_uxt; #endif switch (imm) { |