Re: regression: tethering fails in 3.5 with iwlwifi
From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Date: 2012-09-20 13:17:35
Also in:
netdev
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2013-03-23 · Re: regression: tethering fails in 3.5 with iwlwifi · Luis Henriques <hidden>
- 2013-03-22 · Re: regression: tethering fails in 3.5 with iwlwifi · Artem Bityutskiy <hidden>
- 2013-03-21 · Re: regression: tethering fails in 3.5 with iwlwifi · David Miller <davem@davemloft.net>
- 2013-03-21 · Re: regression: tethering fails in 3.5 with iwlwifi · Johannes Berg <johannes@sipsolutions.net>
- 2012-09-20 · Re: regression: tethering fails in 3.5 with iwlwifi · Eric Dumazet <hidden>
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 BityutskiyAttachments
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