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Re: [PATCH 2/4] ath9k: rework power state handling

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On 16.11.2011, at 18:42, "Luis R. Rodriguez" <mcgrof@xxxxxxxxxxxxxxxx> wrote:

> On Wed, Nov 16, 2011 at 4:08 AM, Felix Fietkau <nbd@xxxxxxxxxxx> wrote:
>> Turning off the radio when mac80211 tells the driver that it's idle is not
>> a good idea, as idle interfaces might still occasionally scan or send packets.
>> The only time the radio can be safely turned off is when drv_stop has been
>> called. In the mean time, use sc->ps_idle only to indicate network sleep vs
>> full sleep.
>> Move the LED GPIO changes out of the PCI suspend/resume path, the start/stop
>> functions already take care of that.
>> 
>> Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
> 
> This set of patches are going to need some good amount of testing for
> power impact. The benefits and gains need to be considered. I'll yield
> to Senthil and Paul for final approval on this.
One of the gains is that this series fixes some "PCI error" crashes on OpenWrt during hostapd restarts.

- Felix--
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