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| author | Yi-Hung Wei <yihung.wei@gmail.com> | 2017-03-30 12:36:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-01 12:16:46 -0700 |
| commit | 6f56f6186c18e3fd54122b73da68e870687b8c59 (patch) | |
| tree | 51175d46ffe17e561698db8e5ad67ed873ed657b | |
| parent | 3af887c38f1ae0db66c00c4ee2e8a0b1e99ffc29 (diff) | |
| download | linux-6f56f6186c18e3fd54122b73da68e870687b8c59.tar.bz2 | |
openvswitch: Fix ovs_flow_key_update()
ovs_flow_key_update() is called when the flow key is invalid, and it is
used to update and revalidate the flow key. Commit 329f45bc4f19
("openvswitch: add mac_proto field to the flow key") introduces mac_proto
field to flow key and use it to determine whether the flow key is valid.
However, the commit does not update the code path in ovs_flow_key_update()
to revalidate the flow key which may cause BUG_ON() on execute_recirc().
This patch addresses the aforementioned issue.
Fixes: 329f45bc4f19 ("openvswitch: add mac_proto field to the flow key")
Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/openvswitch/flow.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 9d4bb8eb63f2..3f76cb765e5b 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -527,7 +527,7 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) /* Link layer. */ clear_vlan(key); - if (key->mac_proto == MAC_PROTO_NONE) { + if (ovs_key_mac_proto(key) == MAC_PROTO_NONE) { if (unlikely(eth_type_vlan(skb->protocol))) return -EINVAL; @@ -745,7 +745,13 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) int ovs_flow_key_update(struct sk_buff *skb, struct sw_flow_key *key) { - return key_extract(skb, key); + int res; + + res = key_extract(skb, key); + if (!res) + key->mac_proto &= ~SW_FLOW_KEY_INVALID; + + return res; } static int key_extract_mac_proto(struct sk_buff *skb) |