lkml.org 
[lkml]   [2015]   [Jul]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 next-next 1/3] ARM: net: add support for BPF_ANC | SKF_AD_PKTTYPE in ARM JIT.
Date
Signed-off-by: Nicolas Schichan <nschichan@freebox.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 4550d24..67a2d44 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -864,6 +864,17 @@ b_epilogue:
else
OP_IMM3(ARM_AND, r_A, r_A, VLAN_TAG_PRESENT, 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


\
 
 \ /
  Last update: 2015-07-21 14:41    [W:0.185 / U:0.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site