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Re: [v3, 01/11] mwifiex: check tx_hw_pending before downloading sleep confirm

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Amitkumar Karwar <akarwar@xxxxxxxxxxx> wrote:
> From: Shengzhen Li <szli@xxxxxxxxxxx>
> 
> We may get SLEEP event from firmware even if TXDone interrupt
> for last Tx packet is still pending. In this case, we may
> end up accessing PCIe memory for handling TXDone after power
> save handshake is completed. This causes kernel crash with
> external abort.
> 
> This patch will only allow downloading sleep confirm
> when no tx done interrupt is pending in the hardware.
> 
> Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
> Signed-off-by: Shengzhen Li <szli@xxxxxxxxxxx>
> Tested-by: Xinming Hu <huxm@xxxxxxxxxxx>
> Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
> Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>

(A note to myself)

Depends on this patchset:

[ 12] [v4,1/3] mwifiex: Allow mwifiex early access to device st... 2016-11-15 Amitkumar Ka Awaiting Upstream
[ 13] [v4,2/3] mwifiex: Introduce mwifiex_probe_of() to parse c... 2016-11-15 Amitkumar Ka Awaiting Upstream
[ 14] [v4,3/3] mwifiex: Enable WoWLAN for both sdio and pcie       2016-11-15 Amitkumar Ka Awaiting Upstream

-- 
https://patchwork.kernel.org/patch/9423003/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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