On Thu, 2012-09-20 at 15:04 +0200, Eric Dumazet wrote:
> Try to pull 40 bytes : Thats OK for tcp performance, because 40 bytes
> is the minimum size of IP+TCP headers
>
> pskb_may_pull(skb, 40);
OK, I've tried almost this (see below) and it solves my issue:
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 965e6ec..7f079d0 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1798,9 +1798,13 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
if (skb) {
/* deliver to local stack */
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_receive_skb(skb);
+ if (pskb_may_pull(skb, 40)) {
+ skb->protocol = eth_type_trans(skb, dev);
+ memset(skb->cb, 0, sizeof(skb->cb));
+ netif_receive_skb(skb);
+ } else {
+ kfree_skb(skb);
+ }
}
}
--
Best Regards,
Artem Bityutskiy
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