From: Kalle Valo <kvalo@codeaurora.org>
To: Brian Norris <briannorris@chromium.org>
Cc: Amitkumar Karwar <amitkarwar@gmail.com>,
Nishant Sarmukadam <nishants@marvell.com>,
Ganapathi Bhat <gbhat@marvell.com>,
Xinming Hu <huxinming820@gmail.com>,
linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Doug Anderson <dianders@chromium.org>,
Matthias Kaehlcke <mka@chromium.org>,
Brian Norris <briannorris@chromium.org>,
Amitkumar Karwar <akarwar@marvell.com>
Subject: Re: [PATCH] Revert "mwifiex: fix system hang problem after resume"
Date: Tue, 6 Aug 2019 12:43:41 +0000 (UTC) [thread overview]
Message-ID: <20190806124341.AC16760590@smtp.codeaurora.org> (raw)
In-Reply-To: <20190805171504.48122-1-briannorris@chromium.org>
Brian Norris <briannorris@chromium.org> wrote:
> This reverts commit 437322ea2a36d112e20aa7282c869bf924b3a836.
>
> This above-mentioned "fix" does not actually do anything to prevent a
> race condition. It simply papers over it so that the issue doesn't
> appear.
>
> If this is a real problem, it should be explained better than the above
> commit does, and an alternative, non-racy solution should be found.
>
> For further reason to revert this: there's no reason we can't try
> resetting the card when it's *actually* stuck in host-sleep mode. So
> instead, this is unnecessarily creating scenarios where we can't recover
> Wifi (and in fact, I'm fielding reports of Chromebooks that can't
> recover after the aforementioned commit).
>
> Note that this was proposed in 2017 and Ack'ed then, but due to my
> marking as RFC, it never went anywhere:
>
> https://patchwork.kernel.org/patch/9657277/
> [RFC] Revert "mwifiex: fix system hang problem after resume"
>
> Cc: Amitkumar Karwar <akarwar@marvell.com>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Acked-by: Amitkumar Karwar <amitkarwar@gmail.com>
> Tested-by: Matthias Kaehlcke <mka@chromium.org>
Patch applied to wireless-drivers-next.git, thanks.
654026df2635 Revert "mwifiex: fix system hang problem after resume"
--
https://patchwork.kernel.org/patch/11077645/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2019-08-06 12:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-05 17:15 [PATCH] Revert "mwifiex: fix system hang problem after resume" Brian Norris
2019-08-06 12:43 ` Kalle Valo [this message]
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