Re: [PATCH 5.13] mwifiex: bring down link before deleting interface

[Brian Norris]

On Fri, May 14, 2021 at 7:45 PM Brian Norris <briannorris@xxxxxxxxxxxx> wrote:
>
> We can deadlock when rmmod'ing the driver or going through firmware
> reset, because the cfg80211_unregister_wdev() has to bring down the link
> for us, ... which then grab the same wiphy lock.
...
> Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Link: https://lore.kernel.org/linux-wireless/98392296-40ee-6300-369c-32e16cff3725@xxxxxxxxx/
> Link: https://lore.kernel.org/linux-wireless/ab4d00ce52f32bd8e45ad0448a44737e@xxxxxxxxx/
> Reported-by: Maximilian Luz <luzmaximilian@xxxxxxxxx>
> Reported-by: dave@xxxxxxxxx
> Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> Signed-off-by: Brian Norris <briannorris@xxxxxxxxxxxx>

Ping - is this going to get merged? It's a 5.12 regression, and we
have multiple people complaining about it (and they tested the fix
too!).

Thanks,
Brian