Re: [PATCH] iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()

From: Jiri Kosina
Date: Sat Mar 13 2021 - 11:00:13 EST


On Sat, 13 Mar 2021, Kalle Valo wrote:

> >> > From: Jiri Kosina <jkosina@xxxxxxx>
> >> >
> >> > It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs
> >> > disabled (e.g. from LED core). We can't enable BHs in such a situation.
> >> >
> >> > Turn the unconditional BH-enable/BH-disable code into
> >> > hardirq-disable/conditional-enable.
> >> >
> >> > This fixes the warning below.
> >>
> >> Hi,
> >>
> >> friendly ping on this one ...
> >
> > Luca,
> >
> > Johannes is telling me that he merged this patch internally, but I have no
> > idea what is happening to it ... ?
> >
> > The reported splat is a clear bug, so it should be fixed one way or the
> > other.
>
> Should I take this to wireless-drivers?

I can't speak for the maintainers, but as far as I am concerned, it
definitely is a 5.12 material, as it fixes real scheduling bug.

Thanks,

--
Jiri Kosina
SUSE Labs