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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2018-11-10 19:58:36 +0100
committerDavid S. Miller <davem@davemloft.net>2018-11-16 19:25:29 -0800
commit0c4b2d370514cb4f3454dd3b18f031d2651fab73 (patch)
tree83c96b0c5bbf7c311fcee1ee1949c253d093fe57 /net
parent4b50d23179737e4b5f5f16e4bb58bedcf437addc (diff)
downloadlinux-0c4b2d370514cb4f3454dd3b18f031d2651fab73.tar.bz2
net: remove VLAN_TAG_PRESENT
Replace VLAN_TAG_PRESENT with single bit flag and free up VLAN.CFI overload. Now VLAN.CFI is visible in networking stack and can be passed around intact. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/filter.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index c151b906df53..10acbc00ff6c 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -301,9 +301,6 @@ static u32 convert_skb_access(int skb_field, int dst_reg, int src_reg,
/* dst_reg = *(u16 *) (src_reg + offsetof(vlan_tci)) */
*insn++ = BPF_LDX_MEM(BPF_H, dst_reg, src_reg,
offsetof(struct sk_buff, vlan_tci));
-#ifdef VLAN_TAG_PRESENT
- *insn++ = BPF_ALU32_IMM(BPF_AND, dst_reg, ~VLAN_TAG_PRESENT);
-#endif
break;
case SKF_AD_VLAN_TAG_PRESENT:
*insn++ = BPF_LDX_MEM(BPF_B, dst_reg, src_reg, PKT_VLAN_PRESENT_OFFSET());
@@ -6152,9 +6149,6 @@ static u32 bpf_convert_ctx_access(enum bpf_access_type type,
*insn++ = BPF_LDX_MEM(BPF_H, si->dst_reg, si->src_reg,
bpf_target_off(struct sk_buff, vlan_tci, 2,
target_size));
-#ifdef VLAN_TAG_PRESENT
- *insn++ = BPF_ALU32_IMM(BPF_AND, si->dst_reg, ~VLAN_TAG_PRESENT);
-#endif
break;
case offsetof(struct __sk_buff, cb[0]) ...