diff options
| author | Mark Brown <broonie@kernel.org> | 2016-06-29 17:28:16 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-29 17:28:16 +0100 |
| commit | 10d832d607c621c101922442f4771737296e1241 (patch) | |
| tree | 421229d6bb43c301bbf5eb97b11c5901aae66e08 /net/openvswitch/actions.c | |
| parent | 1a695a905c18548062509178b98bc91e67510864 (diff) | |
| parent | a370f60a58ec7bad7045803041524ccdc4d79c75 (diff) | |
Merge tag 'ib-mfd-regulator-arm-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into regulator-rn5t618
Immutable branch between MFD, Regulator and ARM, due for v4.8
Diffstat (limited to 'net/openvswitch/actions.c')
| -rw-r--r-- | net/openvswitch/actions.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index 879185fe183f..9a3eb7a0ebf4 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -137,11 +137,23 @@ static bool is_flow_key_valid(const struct sw_flow_key *key) return !!key->eth.type; } +static void update_ethertype(struct sk_buff *skb, struct ethhdr *hdr, + __be16 ethertype) +{ + if (skb->ip_summed == CHECKSUM_COMPLETE) { + __be16 diff[] = { ~(hdr->h_proto), ethertype }; + + skb->csum = ~csum_partial((char *)diff, sizeof(diff), + ~skb->csum); + } + + hdr->h_proto = ethertype; +} + static int push_mpls(struct sk_buff *skb, struct sw_flow_key *key, const struct ovs_action_push_mpls *mpls) { __be32 *new_mpls_lse; - struct ethhdr *hdr; /* Networking stack do not allow simultaneous Tunnel and MPLS GSO. */ if (skb->encapsulation) @@ -160,9 +172,7 @@ static int push_mpls(struct sk_buff *skb, struct sw_flow_key *key, skb_postpush_rcsum(skb, new_mpls_lse, MPLS_HLEN); - hdr = eth_hdr(skb); - hdr->h_proto = mpls->mpls_ethertype; - + update_ethertype(skb, eth_hdr(skb), mpls->mpls_ethertype); if (!skb->inner_protocol) skb_set_inner_protocol(skb, skb->protocol); skb->protocol = mpls->mpls_ethertype; @@ -193,7 +203,7 @@ static int pop_mpls(struct sk_buff *skb, struct sw_flow_key *key, * field correctly in the presence of VLAN tags. */ hdr = (struct ethhdr *)(skb_mpls_header(skb) - ETH_HLEN); - hdr->h_proto = ethertype; + update_ethertype(skb, hdr, ethertype); if (eth_p_mpls(skb->protocol)) skb->protocol = ethertype; |