Subject: Re: alloc skb based on a given data buffer
From: Johannes Berg <johannes@sipsolutions.net>
To: David Miller <davem@davemloft.net>
Cc: yi.zhu@intel.com, mel@csn.ul.ie, reinette.chatre@intel.com,
	elendil@planet.nl, Larry.Finger@lwfinger.net,
	linville@tuxdriver.com, penberg@cs.helsinki.fi,
	linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
	ipw3945-devel@lists.sourceforge.net, akpm@linux-foundation.org,
	cl@linux-foundation.org, assaf.krauss@intel.com,
	mohamed.abbas@intel.com, netdev@vger.kernel.org
In-Reply-To: <20090915.141606.134994761.davem@davemloft.net>
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	 <1253006111.7549.61.camel@debian>
	 <1253028631.23427.55.camel@johannes.local>
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Date: Fri, 18 Sep 2009 22:56:06 -0700
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On Tue, 2009-09-15 at 14:16 -0700, David Miller wrote:
> From: Johannes Berg <johannes@sipsolutions.net>
> Date: Tue, 15 Sep 2009 08:30:31 -0700
>=20
> > Hold, mac80211 can't cope with that at this point for sw crypto and
> > possibly other things.
>=20
> Then it should skb_linearize() at input, or similar.

Not all that much won then since that again means an order-2 allocation.
Fewer, certainly, as most packets are actually much smaller than that.

johannes

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