ar5523: use container_of

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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@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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Florian Westphal 2015-03-10 15:25:39 +01:00 • committed by Kalle Valo

parent dd29511248

commit 6faf22d9ca

2 changed files with 5 additions and 5 deletions

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9

drivers/net/wireless/ath/ar5523/ar5523.c

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1

drivers/net/wireless/ath/ar5523/ar5523.h

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