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Message-Id: <1430314657-2552-4-git-send-email-nschichan@freebox.fr> Date: Wed, 29 Apr 2015 15:37:36 +0200 From: Nicolas Schichan <nschichan@...ebox.fr> To: Russell King <linux@....linux.org.uk>, "David S. Miller" <davem@...emloft.net>, Daniel Borkmann <dborkman@...hat.com>, Nicolas Schichan <nschichan@...ebox.fr>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH 3/4] ARM: net: add JIT support for loads from struct seccomp_data. Signed-off-by: Nicolas Schichan <nschichan@...ebox.fr> --- arch/arm/net/bpf_jit_32.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index e1268f9..b5f470d 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -852,6 +852,16 @@ b_epilogue: off = offsetof(struct sk_buff, queue_mapping); emit(ARM_LDRH_I(r_A, r_skb, off), ctx); break; + case BPF_LDX | BPF_W | BPF_ABS: + /* + * load a 32bit word from struct seccomp_data. + * seccomp_check_filter() will already have checked + * that k is 32bit aligned and lies within the + * struct seccomp_data. + */ + ctx->seen |= SEEN_SKB; + emit(ARM_LDR_I(r_A, r_skb, k), ctx); + break; default: return -1; } -- 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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