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From: Kalle Valo <kalle.valo@iki.fi>
To: Vivek Natarajan <vivek.natraj@gmail.com>
Cc: linux-wireless@vger.kernel.org,
	Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [RFC PATCH 2/2] mac80211: Reset dynamic ps timer in Rx path.
Date: Fri, 05 Feb 2010 14:25:14 +0200	[thread overview]
Message-ID: <87sk9fj2dx.fsf@purkki.valot.fi> (raw)
In-Reply-To: <8e92b4101002040212k6a8e594ao6191fda61ca867b4@mail.gmail.com> (Vivek Natarajan's message of "Thu\, 4 Feb 2010 15\:42\:00 +0530")

Vivek Natarajan <vivek.natraj@gmail.com> writes:

>>> +     if ((local->hw.flags & IEEE80211_HW_NEEDS_RX_PS_RESET) &&
>>> +         ieee80211_is_data(hdr->frame_control) &&
>>> +         !is_multicast_ether_addr(hdr->addr1)) {
>>> +             if (local->hw.conf.dynamic_ps_timeout > 0 && local->ps_sdata) {
>>> +                     mod_timer(&local->dynamic_ps_timer, jiffies +
>>> +                      msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
>>> +             }
>>> +     }
>>
>> What if CONF_PS is set? You need to take that into account here and
>> disable powersave when it's enabled.
>
> With ath9k, for a data frame(non-multicast) to reach mac80211,
> CONF_PS should have been disabled. in other words,a data packet will
> not reach mac80211 when CONF_PS is set. Hence that check might be
> redundant here.

I checked this now, and that indeed is the case. So no need to check
CONF_PS here.

-- 
Kalle Valo

  reply	other threads:[~2010-02-05 12:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-04  6:54 [RFC PATCH 1/2] mac80211: Retry null data frame for power save Vivek Natarajan
2010-02-04  6:54 ` [RFC PATCH 2/2] mac80211: Reset dynamic ps timer in Rx path Vivek Natarajan
2010-02-04  8:14   ` Johannes Berg
2010-02-04 10:15     ` Vivek Natarajan
2010-02-04  8:59   ` Kalle Valo
2010-02-04 10:12     ` Vivek Natarajan
2010-02-05 12:25       ` Kalle Valo [this message]
2010-02-04  8:25 ` [RFC PATCH 1/2] mac80211: Retry null data frame for power save Johannes Berg
2010-02-04  9:14   ` Kalle Valo
2010-02-04  9:00 ` Kalle Valo

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