Search Linux Wireless

Re: [PATCH 2/2] ath9k: Fix power save usage count imbalance on deinit

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jan 21, 2011 at 04:32:20AM +0530, Luis R. Rodriguez wrote:
> On Wed, Jan 19, 2011 at 11:51 PM, Rajkumar Manoharan
> <rmanoharan@xxxxxxxxxxx> wrote:
> > On Thu, Jan 20, 2011 at 12:54:56AM +0530, Luis R. Rodriguez wrote:
> >> On Wed, Jan 19, 2011 at 7:47 AM, Rajkumar Manoharan
> >> <rmanoharan@xxxxxxxxxxx> wrote:
> >> > Upon unloading the driver, the ps_usecount is incremented
> >> > before configuring gpio registers in deinit_device.
> >> > But it is failed to restore the ps_usecount after that.
> >> > The problem is that the chip is moved to FULL SLEEP
> >> > by radio_disable when mac80211 is reporting as idle
> >> > though ps_usecount is not zero.
> >> >
> >> > This patch retores ps_usecount properly and ensures that
> >> > the chip is always moved to full sleep only if ps usage
> >> > counte is zero which helps in debugging. And also fixes
> >> > the following warning.
> >> >
> >> > ath: DMA failed to stop in 10 ms AR_CR=0xdeadbeef AR_DIAG_SW=0xdeadbeef
> >> > ath: Could not stop RX, we could be confusing the DMA engine when we
> >> > start RX up
> >> > ------------[ cut here ]------------
> >> > WARNING: at drivers/net/wireless/ath/ath9k/recv.c:536
> >> > ath_stoprecv+0xf4/0x100 [ath9k]()
> >> >
> >>
> >> Are you sure this hunk does not regress the suspend/resume case when
> >> using the new dbus API?
> >>
> > I verfied the suspend/resume case with AR9280 card. But I don't
> > understand how the new dbus API is related with this patch?
> 
> Paul, if you get a chance to give this a spin before it gets merged
> it'd be appreciated.
Paul,
Did you get a chance to evaluate this patch? Shall we proceed further?

--
Rajkumar
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux