[PATCH V2 net-next 2/3] ARM: net: add support for BPF_ANC | SKF_AD_PAY_OFFSET in ARM JIT.
Nicolas Schichan
nschichan at freebox.fr
Tue Jul 21 05:16:39 PDT 2015
Signed-off-by: Nicolas Schichan <nschichan at freebox.fr>
---
arch/arm/net/bpf_jit_32.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 67a2d44..fe28beb 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -884,6 +884,14 @@ b_epilogue:
off = offsetof(struct sk_buff, queue_mapping);
emit(ARM_LDRH_I(r_A, r_skb, off), ctx);
break;
+ case BPF_ANC | SKF_AD_PAY_OFFSET:
+ ctx->seen |= SEEN_SKB | SEEN_CALL;
+
+ emit(ARM_MOV_R(ARM_R0, r_skb), ctx);
+ emit_mov_i(ARM_R3, (unsigned int)skb_get_poff, ctx);
+ emit_blx_r(ARM_R3, ctx);
+ emit(ARM_MOV_R(r_A, ARM_R0), ctx);
+ break;
case BPF_LDX | BPF_W | BPF_ABS:
/*
* load a 32bit word from struct seccomp_data.
--
1.9.1
More information about the linux-arm-kernel
mailing list