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authorJohn Fastabend <john.r.fastabend@intel.com>2010-10-30 16:22:37 +0200
committerDavid S. Miller <davem@davemloft.net>2010-11-15 19:11:40 +0100
commit8f5549f381ced6a255f2c7127b2b3b3b05fdfd6e (patch)
tree495c1ed3e1031a8f07b659cf3772ed2be22ea9d3
parent8021q: set hard_header_len when VLAN offload features are toggled (diff)
downloadlinux-8f5549f381ced6a255f2c7127b2b3b3b05fdfd6e.tar.xz
linux-8f5549f381ced6a255f2c7127b2b3b3b05fdfd6e.zip
net: remove check for headroom in vlan_dev_create
It is possible for the headroom to be smaller then the hard_header_len for a short period of time after toggling the vlan offload setting. This is not a hard error and skb_cow_head is called in __vlan_put_tag() to resolve this. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/8021q/vlan_dev.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 14e3d1fa07a0..afb03c5a7adc 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -274,9 +274,6 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
u16 vlan_tci = 0;
int rc;
- if (WARN_ON(skb_headroom(skb) < dev->hard_header_len))
- return -ENOSPC;
-
if (!(vlan_dev_info(dev)->flags & VLAN_FLAG_REORDER_HDR)) {
vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);