APPLIED[Bionic/linux]: [SRU][Bionic/dell300x][PATCH 0/1] dell300x: rsi wifi and bluetooth crash after suspend and resume

[Kelsey Skunberg]

Applied to bionic/linux master-next for cycle 2021.09.06. thank you!

-Kelsey

On 2021-08-19 12:05:10 , Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1940488
> 
> I tested the upstream stable kernel 4.19.191, also could reproduce
> this issue, and reported this testing result to stable mail list.
> 
> 
> [Impact]
> On the Dell300x machine, after system suspend and resume, the wifi
> and bluetooth can't work anymore.
> 
> [Fix]
> Revert a patch which was applied to bionic kernel from stable update.
> 
> [Test]
> Booting up with the patched kernel, run $sudo rtcwake -m freeze -s 10,
> then check dmesg to make sure there is crashing log, and run 'nmcli d
> wifi' and 'bluetoothctl, power on, scan on', all worked well.
> 
> [Where problems could occur]
> After applying this SRU, the rsi wifi and bluetooth could have come
> change, like wifi and bluetooth can't work well after resume, but this
> possibility is very low, I already run '$sudo rtcwake -m freeze -s 10'
> for 50 times, the wifi and bluetooth still worked well.
> 
> 
> Hui Wang (1):
>   Revert "rsi: Use resume_noirq for SDIO"
> 
>  drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> -- 
> 2.25.1
> 
> 
> -- 
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