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-rw-r--r--net/core/dev.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index ec5be1c..220f52a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -217,7 +217,7 @@ static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex)
static inline void *skb_gro_mac_header(struct sk_buff *skb)
{
- return skb_headlen(skb) ? skb_mac_header(skb) :
+ return skb_mac_header(skb) < skb->data ? skb_mac_header(skb) :
page_address(skb_shinfo(skb)->frags[0].page) +
skb_shinfo(skb)->frags[0].page_offset;
}
@@ -2469,11 +2469,19 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
napi->gro_list = skb;
ret = GRO_HELD;
+pull:
+ if (unlikely(!pskb_may_pull(skb, skb_gro_offset(skb)))) {
+ if (napi->gro_list == skb)
+ napi->gro_list = skb->next;
+ ret = GRO_DROP;
+ }
+
ok:
return ret;
normal:
- return GRO_NORMAL;
+ ret = GRO_NORMAL;
+ goto pull;
}
EXPORT_SYMBOL(dev_gro_receive);
@@ -2589,14 +2597,10 @@ EXPORT_SYMBOL(napi_fraginfo_skb);
int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
{
int err = NET_RX_SUCCESS;
- int may;
switch (ret) {
case GRO_NORMAL:
case GRO_HELD:
- may = pskb_may_pull(skb, skb_gro_offset(skb));
- BUG_ON(!may);
-
skb->protocol = eth_type_trans(skb, napi->dev);
if (ret == GRO_NORMAL)