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| author | Pu Lehui <pulehui@huawei.com> | 2023-08-24 09:50:00 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-08-24 09:13:08 -0700 |
| commit | 83cc63afab718c5a31ce94d3e7f3827acc501042 (patch) | |
| tree | 94d8eb0e8ddee46e566f40738a4e1168c53b338e | |
| parent | 3e18ff4bce9b50d351479bb4baee6e8305e98a5b (diff) | |
| download | linux-stable-83cc63afab718c5a31ce94d3e7f3827acc501042.tar.gz linux-stable-83cc63afab718c5a31ce94d3e7f3827acc501042.tar.bz2 linux-stable-83cc63afab718c5a31ce94d3e7f3827acc501042.zip | |
riscv, bpf: Support unconditional bswap insn
Add support unconditional bswap instruction. Since riscv is always
little-endian, just treat the unconditional scenario the same as
big-endian conversion.
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20230824095001.3408573-7-pulehui@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | arch/riscv/net/bpf_jit_comp64.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index ba4535ac194f..8423f4ddf8f5 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -1168,6 +1168,7 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx, break; case BPF_ALU | BPF_END | BPF_FROM_BE: + case BPF_ALU64 | BPF_END | BPF_FROM_LE: emit_li(RV_REG_T2, 0, ctx); emit_andi(RV_REG_T1, rd, 0xff, ctx); |