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Message-Id: <1437065195-10887-5-git-send-email-nschichan@freebox.fr> Date: Thu, 16 Jul 2015 18:46:33 +0200 From: Nicolas Schichan <nschichan@...ebox.fr> To: "David S. Miller" <davem@...emloft.net>, Daniel Borkmann <dborkman@...hat.com>, Nicolas Schichan <nschichan@...ebox.fr>, Mircea Gherzan <mgherzan@...il.com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Cc: Russell King <linux@....linux.org.uk>, Alexei Starovoitov <ast@...mgrid.com> Subject: [PATCH 4/6] ARM: net: add support for BPF_ANC | SKF_AD_PKTTYPE in ARM JIT. Signed-off-by: Nicolas Schichan <nschichan@...ebox.fr> --- arch/arm/net/bpf_jit_32.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index c011e22..6ff248c 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -895,6 +895,17 @@ b_epilogue: OP_IMM3(ARM_AND, r_A, r_A, 0x1, ctx); } break; + case BPF_ANC | SKF_AD_PKTTYPE: + ctx->seen |= SEEN_SKB; + BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, + __pkt_type_offset[0]) != 1); + off = PKT_TYPE_OFFSET(); + emit(ARM_LDRB_I(r_A, r_skb, off), ctx); + emit(ARM_AND_I(r_A, r_A, PKT_TYPE_MAX), ctx); +#ifdef __BIG_ENDIAN_BITFIELD + emit(ARM_LSR_I(r_A, r_A, 5), ctx); +#endif + break; case BPF_ANC | SKF_AD_QUEUE: ctx->seen |= SEEN_SKB; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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