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| author | Jiong Wang <jiong.wang@netronome.com> | 2018-12-05 13:52:35 -0500 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-12-07 13:30:48 -0800 |
| commit | c49f7dbd4f9c2c49df7fc0f5b50c1350ee7e01ee (patch) | |
| tree | b3c2daf6038c24e8ddbb1958c045e8e8bffc4fea /kernel/bpf | |
| parent | 2dc6b100f928aac8d7532bf7112d3f8d3f952bad (diff) | |
| download | linux-c49f7dbd4f9c2c49df7fc0f5b50c1350ee7e01ee.tar.bz2 | |
bpf: verifier remove the rejection on BPF_ALU | BPF_ARSH
This patch remove the rejection on BPF_ALU | BPF_ARSH as we have supported
them on interpreter and all JIT back-ends
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/verifier.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 7658c61c1a88..2752d35ad073 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3649,11 +3649,6 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn) return -EINVAL; } - if (opcode == BPF_ARSH && BPF_CLASS(insn->code) != BPF_ALU64) { - verbose(env, "BPF_ARSH not supported for 32 bit ALU\n"); - return -EINVAL; - } - if ((opcode == BPF_LSH || opcode == BPF_RSH || opcode == BPF_ARSH) && BPF_SRC(insn->code) == BPF_K) { int size = BPF_CLASS(insn->code) == BPF_ALU64 ? 64 : 32; |