From 5978f8a9fb492a74765822a545f16eb879fab937 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= Date: Fri, 9 Nov 2018 00:18:03 +0100 Subject: [PATCH] bridge: use __vlan_hwaccel helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This removes assumption than vlan_tci != 0 when tag is present. Signed-off-by: Michał Mirosław Signed-off-by: David S. Miller --- net/bridge/br_netfilter_hooks.c | 15 +++++++++------ net/bridge/br_private.h | 2 +- net/bridge/br_vlan.c | 6 +++--- 3 files changed, 13 insertions(+), 10 deletions(-) diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index b1b5e8516724..c9383c470a83 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -671,10 +671,8 @@ static int br_nf_push_frag_xmit(struct net *net, struct sock *sk, struct sk_buff return 0; } - if (data->vlan_tci) { - skb->vlan_tci = data->vlan_tci; - skb->vlan_proto = data->vlan_proto; - } + if (data->vlan_proto) + __vlan_hwaccel_put_tag(skb, data->vlan_proto, data->vlan_tci); skb_copy_to_linear_data_offset(skb, -data->size, data->mac, data->size); __skb_push(skb, data->encap_size); @@ -740,8 +738,13 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff data = this_cpu_ptr(&brnf_frag_data_storage); - data->vlan_tci = skb->vlan_tci; - data->vlan_proto = skb->vlan_proto; + if (skb_vlan_tag_present(skb)) { + data->vlan_tci = skb->vlan_tci; + data->vlan_proto = skb->vlan_proto; + } else { + data->vlan_proto = 0; + } + data->encap_size = nf_bridge_encap_header_len(skb); data->size = ETH_HLEN + data->encap_size; diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 2920e06a5403..67105c66584a 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -905,7 +905,7 @@ static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) int err = 0; if (skb_vlan_tag_present(skb)) { - *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; + *vid = skb_vlan_tag_get_id(skb); } else { *vid = 0; err = -EINVAL; diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 8c9297a01947..a7e869da21bf 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -420,7 +420,7 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br, } if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) - skb->vlan_tci = 0; + __vlan_hwaccel_clear_tag(skb); if (p && (p->flags & BR_VLAN_TUNNEL) && br_handle_egress_vlan_tunnel(skb, v)) { @@ -493,8 +493,8 @@ static bool __allowed_ingress(const struct net_bridge *br, __vlan_hwaccel_put_tag(skb, br->vlan_proto, pvid); else /* Priority-tagged Frame. - * At this point, We know that skb->vlan_tci had - * VLAN_TAG_PRESENT bit and its VID field was 0x000. + * At this point, we know that skb->vlan_tci VID + * field was 0. * We update only VID field and preserve PCP field. */ skb->vlan_tci |= pvid;