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From: Sujith <m.sujith@gmail.com>
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Date: Sat, 22 Jan 2011 22:28:49 +0530
To: Christian Lamparter <chunkeey@googlemail.com>
Cc: "linux-wireless" <linux-wireless@vger.kernel.org>,
	"ath9k-devel" <ath9k-devel@lists.ath9k.org>,
	Jouni Malinen <j@w1.fi>
Subject: Re: [RFC/WIP 00/33] ath9k_htc AP mode
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Christian Lamparter wrote:
> You only have to have a sane tx status if the IEEE80211_TX_CTL_REQ_TX_STATUS
> flag is set. In all other cases, the IEEE80211_TX_STAT_ACK handling is
> *optional*. In fact if you don't set the TX_STAT_ACK flag, mac80211 will
> automatically do the right thing when it sees that a STA has become
> "temporarily" unavailable.

Looking at mac80211, IEEE80211_TX_CTL_REQ_TX_STATUS is set only for mgmt and
a couple of action frames now, but of course this could be fixed for other
use cases too.

> Sure, IEEE80211_HW_REPORTS_TX_ACK_STATUS would be the way to go.
> Especially because IEEE80211_HW_PS_NULLFUNC_STACK also benefits
> from it.

Yeah, agreed.
Well, let's see how things turn out. :)

Sujith