diff options
| author | Alexei Starovoitov <ast@fb.com> | 2017-05-30 23:31:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-01 02:29:47 +0300 |
| commit | 71189fa9b092ef125ee741eccb2f5fa916798afd (patch) | |
| tree | 6a2f3dd82c3332011d215d85d9b56d38502e8864 /kernel/bpf/core.c | |
| parent | d2e0ef493ad953048bdf562b06cc4330b3fd9fb7 (diff) | |
| download | linux-71189fa9b092ef125ee741eccb2f5fa916798afd.tar.xz | |
bpf: free up BPF_JMP | BPF_CALL | BPF_X opcode
free up BPF_JMP | BPF_CALL | BPF_X opcode to be used by actual
indirect call by register and use kernel internal opcode to
mark call instruction into bpf_tail_call() helper.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf/core.c')
| -rw-r--r-- | kernel/bpf/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index dedf367f59bb..339289402b96 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -824,7 +824,7 @@ static unsigned int __bpf_prog_run(void *ctx, const struct bpf_insn *insn) [BPF_ALU64 | BPF_NEG] = &&ALU64_NEG, /* Call instruction */ [BPF_JMP | BPF_CALL] = &&JMP_CALL, - [BPF_JMP | BPF_CALL | BPF_X] = &&JMP_TAIL_CALL, + [BPF_JMP | BPF_TAIL_CALL] = &&JMP_TAIL_CALL, /* Jumps */ [BPF_JMP | BPF_JA] = &&JMP_JA, [BPF_JMP | BPF_JEQ | BPF_X] = &&JMP_JEQ_X, |