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From: Luca Coelho <luca@coelho.fi>
To: Jiri Kosina <jikos@kernel.org>, Kalle Valo <kvalo@codeaurora.org>
Cc: Johannes Berg <johannes.berg@intel.com>,
	Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
	linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()
Date: Sat, 13 Mar 2021 18:32:26 +0200	[thread overview]
Message-ID: <f103b4a29b7c1942f091bd7b90d7a927d72c20a2.camel@coelho.fi> (raw)
In-Reply-To: <nycvar.YFH.7.76.2103131642290.12405@cbobk.fhfr.pm>

On Sat, 2021-03-13 at 16:43 +0100, Jiri Kosina wrote:
> On Sat, 13 Mar 2021, Kalle Valo wrote:
> 
> > > > > From: Jiri Kosina <jkosina@suse.cz>
> > > > > 
> > > > > 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.

Yes, please take this to w-d.  We have a similar patch internally, but
there's a backlog and it will take me some time to get to it.  I'll
resolve eventual conflicts when time comes.

Thanks!

--
Cheers,
Luca.


  reply	other threads:[~2021-03-13 16:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-02 10:26 [PATCH] iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd() Jiri Kosina
2021-03-08  8:25 ` Jiri Kosina
2021-03-13  1:44   ` Jiri Kosina
2021-03-13  5:31     ` Kalle Valo
2021-03-13  5:49       ` Sedat Dilek
2021-03-13 15:43       ` Jiri Kosina
2021-03-13 16:32         ` Luca Coelho [this message]
2021-03-13 17:06           ` Kalle Valo
2021-03-13 17:35             ` Luca Coelho
2021-03-22 12:12               ` Jiri Kosina
2021-03-23  9:13                 ` Sedat Dilek
2021-03-23  9:25                   ` Jiri Kosina
2021-03-23  9:35 ` Kalle Valo

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