From: Johannes Berg <johannes@sipsolutions.net>
To: David Miller <davem@davemloft.net>
Cc: eric@regit.org, netdev@vger.kernel.org,
linux-wireless@vger.kernel.org, linville@tuxdriver.com
Subject: Re: [RFC PATCH] af_packet: don't to defrag shared skb
Date: Fri, 07 Dec 2012 21:42:03 +0100 [thread overview]
Message-ID: <1354912923.9124.1.camel@jlt4.sipsolutions.net> (raw)
In-Reply-To: <20121207.153134.25835204617509469.davem@davemloft.net>
On Fri, 2012-12-07 at 15:31 -0500, David Miller wrote:
> From: Eric Leblond <eric@regit.org>
> Date: Fri, 7 Dec 2012 19:56:01 +0100
>
> Wireless folks, please take a look. The issue is that,
> under the circumstances listed below, we get SKBs in
> the AF_PACKET input path that are shared.
>
> Given the logic present in ieee80211_deliver_skb() I think
> the mac80211 code doesn't expect this either.
Indeed, it would certainly not like this, I'll take a look.
Eric, what's the driver you're using? I'm wondering whether paged skbs
vs. all data in the header would make a difference, hence the question.
johannes
next prev parent reply other threads:[~2012-12-07 20:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-07 18:56 [RFC PATCH] af_packet: don't to defrag shared skb Eric Leblond
2012-12-07 19:10 ` David Miller
2012-12-07 20:31 ` David Miller
2012-12-07 20:42 ` Johannes Berg [this message]
2012-12-07 20:54 ` Eric Leblond
2012-12-07 21:30 ` Johannes Berg
2012-12-07 21:41 ` Johannes Berg
[not found] ` <1354916502.9124.18.camel-8Nb76shvtaUJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2012-12-07 22:12 ` Johannes Berg
2012-12-07 22:23 ` Johannes Berg
[not found] ` <1354919017.9124.33.camel-8Nb76shvtaUJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2012-12-10 9:29 ` Johannes Berg
2012-12-10 9:41 ` [PATCH] ipv4: ip_check_defrag must not modify skb before unsharing Johannes Berg
2012-12-10 11:02 ` Eric Leblond
2012-12-10 18:41 ` David Miller
2012-12-10 18:45 ` Johannes Berg
[not found] ` <1355165152.8083.4.camel-8Nb76shvtaUJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2012-12-10 18:50 ` David Miller
2012-12-07 21:46 ` [RFC PATCH] af_packet: don't to defrag shared skb Eric Leblond
2012-12-07 21:56 ` Johannes Berg
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