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| author |   David S. Miller <davem@davemloft.net> | 2015-12-31 18:20:10 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-31 18:20:10 -0500 |
| commit | c07f30ad68053181b3e8a0e65b0630e12e844f91 (patch) | |
| tree | 8758968aabc844c435ff2a5d7d02c835fccd02a3 /drivers/net/geneve.c | |
| parent | Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next (diff) | |
| parent | Merge tag 'pci-v4.4-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci (diff) | |
| download | linux-dev-c07f30ad68053181b3e8a0e65b0630e12e844f91.tar.xz linux-dev-c07f30ad68053181b3e8a0e65b0630e12e844f91.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/net/geneve.c')
| -rw-r--r-- | drivers/net/geneve.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 20dd66423ec8..24b077a32c1c 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1223,7 +1223,7 @@ static int geneve_configure(struct net *net, struct net_device *dev, struct geneve_net *gn = net_generic(net, geneve_net_id); struct geneve_dev *t, *geneve = netdev_priv(dev); bool tun_collect_md, tun_on_same_port; - int err; + int err, encap_len; if (!remote) return -EINVAL; @@ -1256,6 +1256,14 @@ static int geneve_configure(struct net *net, struct net_device *dev, if (t) return -EBUSY; + /* make enough headroom for basic scenario */ + encap_len = GENEVE_BASE_HLEN + ETH_HLEN; + if (remote->sa.sa_family == AF_INET) + encap_len += sizeof(struct iphdr); + else + encap_len += sizeof(struct ipv6hdr); + dev->needed_headroom = encap_len + ETH_HLEN; + if (metadata) { if (tun_on_same_port) return -EPERM; |