netdev - Re: regression: tethering fails in 3.5 with iwlwifi

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Message-ID: <1348145224.4161.27.camel@jlt4.sipsolutions.net>
Date:	Thu, 20 Sep 2012 14:47:04 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Eric Dumazet <edumazet@...gle.com>
Cc:	artem.bityutskiy@...ux.intel.com, linux-wireless@...r.kernel.org,
	netdev <netdev@...r.kernel.org>
Subject: Re: regression: tethering fails in 3.5 with iwlwifi

On Thu, 2012-09-20 at 14:40 +0200, Eric Dumazet wrote:
> OK, but which netif_receive_skb(), as I count 5 occurrences in
> net/mac80211/rx.c ?

The one you modified in the other email :-)

> Instead of skb_linearize() calls
> 
> you could try several values of XXX in
> 
> pskb_may_pull(skb, XXX)
> 
> So that you make sure XXX bytes are available in skb->head, and not
> the whole frame.
> 
> One you know the limit for XXX, it might give a clue where a
> pskb_may_pull(skb, XXX) is missing.

Good idea.

johannes

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