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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2018-11-09 00:18:03 +0100
committerDavid S. Miller <davem@davemloft.net>2018-11-08 20:45:04 -0800
commit5978f8a9fb492a74765822a545f16eb879fab937 (patch)
treef9925556bf4571f5e85b3d489a4a466d40c44532 /net/bridge
parent418a976d6c68d0835ffebf755cdbd53e9b9c6e7f (diff)
downloadlinux-5978f8a9fb492a74765822a545f16eb879fab937.tar.bz2
bridge: use __vlan_hwaccel helpers
This removes assumption than vlan_tci != 0 when tag is present. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_netfilter_hooks.c15
-rw-r--r--net/bridge/br_private.h2
-rw-r--r--net/bridge/br_vlan.c6
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;