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authorAndy Shevchenko2017-11-03 13:50:41 +0200
committerAndy Shevchenko2017-11-03 13:50:41 +0200
commit7d9a6ef558f6ff375aab9e29f08124cb0daa9bc5 (patch)
tree3916e6cf9678a41081ae822ef67ec5cae1c1fffa /net/ipv4/ip_gre.c
parent3fcf2b2a2529e268c537d8ad9dac5987ebc8a2f7 (diff)
parent0224d45c9d46401b6d7018a96cfe049c5da7d91c (diff)
Merge branch 'i2c/cht-wc-fusb302-immutable' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c/cht-wc-fusb302-immutable immutable branch from Wolfram Sang: as discussed before, here is the immutable branch for the i2c-cht-wc driver, so you can safely apply Hans' patch [1] "platform/x86: intel_cht_int33fe: Update fusb302 type string, add properties" on top of this. [1] http://patchwork.ozlabs.org/patch/824314/
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 0162fb955b33..467e44d7587d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -259,7 +259,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
struct ip_tunnel *tunnel;
struct erspanhdr *ershdr;
const struct iphdr *iph;
- __be32 session_id;
__be32 index;
int len;
@@ -275,8 +274,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
/* The original GRE header does not have key field,
* Use ERSPAN 10-bit session ID as key.
*/
- session_id = cpu_to_be32(ntohs(ershdr->session_id));
- tpi->key = session_id;
+ tpi->key = cpu_to_be32(ntohs(ershdr->session_id) & ID_MASK);
index = ershdr->md.index;
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex,
tpi->flags | TUNNEL_KEY,
@@ -733,7 +731,7 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb,
if (skb_cow_head(skb, dev->needed_headroom))
goto free_skb;
- if (skb->len > dev->mtu) {
+ if (skb->len - dev->hard_header_len > dev->mtu) {
pskb_trim(skb, dev->mtu);
truncate = true;
}
@@ -1223,6 +1221,7 @@ static int gre_tap_init(struct net_device *dev)
{
__gre_tunnel_init(dev);
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+ netif_keep_dst(dev);
return ip_tunnel_init(dev);
}
@@ -1246,13 +1245,16 @@ static int erspan_tunnel_init(struct net_device *dev)
tunnel->tun_hlen = 8;
tunnel->parms.iph.protocol = IPPROTO_GRE;
- t_hlen = tunnel->hlen + sizeof(struct iphdr) + sizeof(struct erspanhdr);
+ tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +
+ sizeof(struct erspanhdr);
+ t_hlen = tunnel->hlen + sizeof(struct iphdr);
dev->needed_headroom = LL_MAX_HEADER + t_hlen + 4;
dev->mtu = ETH_DATA_LEN - t_hlen - 4;
dev->features |= GRE_FEATURES;
dev->hw_features |= GRE_FEATURES;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+ netif_keep_dst(dev);
return ip_tunnel_init(dev);
}