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| author | Alexei Starovoitov <ast@plumgrid.com> | 2014-09-23 23:36:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-26 22:52:09 +0200 |
| commit | cec08315190a4461a369d47041a510d104a5d2a2 (patch) | |
| tree | a117d1ff3c707fe9d1d6477bb0459951ac38d487 | |
| parent | net: bcmgenet: Fix compile warning (diff) | |
| download | linux-cec08315190a4461a369d47041a510d104a5d2a2.tar.xz linux-cec08315190a4461a369d47041a510d104a5d2a2.zip | |
sparc: bpf_jit: add support for BPF_LD(X) | BPF_LEN instructions
BPF_LD | BPF_W | BPF_LEN instruction is occasionally used by tcpdump
and present in 11 tests in lib/test_bpf.c
Teach sparc JIT compiler to emit it.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/net/bpf_jit_comp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c index c1c60c32f6dd..f33e7c7a3bf7 100644 --- a/arch/sparc/net/bpf_jit_comp.c +++ b/arch/sparc/net/bpf_jit_comp.c @@ -624,7 +624,12 @@ void bpf_jit_compile(struct bpf_prog *fp) emit_and(r_A, r_TMP, r_A); } break; - + case BPF_LD | BPF_W | BPF_LEN: + emit_skb_load32(len, r_A); + break; + case BPF_LDX | BPF_W | BPF_LEN: + emit_skb_load32(len, r_X); + break; case BPF_LD | BPF_IMM: emit_loadimm(K, r_A); break; |