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| author | Yonghong Song <yonghong.song@linux.dev> | 2023-07-28 03:12:13 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-07-28 03:52:33 +0200 |
| commit | 0845c3db7bf5c4ceb7100bcd8fd594d9ccf3c29a (patch) | |
| tree | f60e9cb2004b103c0ab01257bdb9952d06df292d /arch/x86/net/bpf_jit_comp.c | |
| parent | bpf: Handle sign-extenstin ctx member accesses (diff) | |
| download | linux-0845c3db7bf5c4ceb7100bcd8fd594d9ccf3c29a.tar.xz linux-0845c3db7bf5c4ceb7100bcd8fd594d9ccf3c29a.zip | |
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/x86/net/bpf_jit_comp.c')
| -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 */ |