netdev - Re: [next] ar5523: use container

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Message-Id: <20150313140749.B266A1415F0@smtp.codeaurora.org>
Date:	Fri, 13 Mar 2015 14:07:49 +0000 (UTC)
From:	Kalle Valo <kvalo@...eaurora.org>
To:	Florian Westphal <fw@...len.de>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	Florian Westphal <fw@...len.de>
Subject: Re: [next] ar5523: use container_of


> If we want to shrink skb->cb then we'd have to see about
> reducing struct ieee80211_tx_info, which gets embedded inside
> skb->cb[].
> 
> It provides a scratch space to be used by wireless drivers.
> ar5523 uses the maximum space available today (40 bytes), but it seems
> we don't need this -- data->skb pointer seems to always point back to the
> skb whose cb buffer the data structure resides, iow, given a pointer to the
> embedded control buffer we can infer the skb address.
> 
> Tested-by: Pontus Fuchs <pontus.fuchs@...il.com>
> Signed-off-by: Florian Westphal <fw@...len.de>

Thanks, applied to wireless-drivers-next.git.

Kalle Valo
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