diff options
| author | Yonghong Song | 2023-07-27 18:12:13 -0700 |
|---|---|---|
| committer | Alexei Starovoitov | 2023-07-27 18:52:33 -0700 |
| commit | 0845c3db7bf5c4ceb7100bcd8fd594d9ccf3c29a (patch) | |
| tree | f60e9cb2004b103c0ab01257bdb9952d06df292d /arch | |
| parent | 1f1e864b65554e33fe74e3377e58b12f4302f2eb (diff) | |
bpf: Support new unconditional bswap instruction
The existing 'be' and 'le' insns will do conditional bswap
depends on host endianness. This patch implements
unconditional bswap insns.
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230728011213.3712808-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/net/bpf_jit_comp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index 031ef3c4185d..4942a4c188b9 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -1322,6 +1322,7 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image, u8 *rw_image break; case BPF_ALU | BPF_END | BPF_FROM_BE: + case BPF_ALU64 | BPF_END | BPF_FROM_LE: switch (imm32) { case 16: /* Emit 'ror %ax, 8' to swap lower 2 bytes */ |