Commit fb7c03df authored Mar 20, 2014 by Eric W. Biederman

if_vlan: Call dev_kfree_skb_any instead of kfree_skb.



Replace kfree_skb with dev_kfree_skb_any in vlan_insert_tag as
vlan_insert_tag can be called from hard irq context (netpoll)
and from other contexts.

dev_kfree_skb_any is used as vlan_insert_tag only frees the skb if the
skb can not be modified to insert a tag, in which case vlan_insert_tag
drops the skb.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

parent 85e94525

include/linux/if_vlan.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -288,7 +288,7 @@ static inline struct sk_buff vlan_insert_tag(struct sk_buff skb,
		struct vlan_ethhdr *veth;

		if (skb_cow_head(skb, VLAN_HLEN) < 0) {
		kfree_skb(skb);
		dev_kfree_skb_any(skb);
		return NULL;
		}
		veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN);

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