netdev - Re: pull request: wireless 2011-12-15

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Message-ID: <CACna6rxO2dC=Y3nv-d-w89MqyM0j0aumk=r5Yh_KEg=MwOcvEQ@mail.gmail.com>
Date:	Mon, 26 Dec 2011 00:36:59 +0100
From:	Rafał Miłecki <zajec5@...il.com>
To:	"John W. Linville" <linville@...driver.com>,
	Greg KH <greg@...ah.com>
Cc:	davem@...emloft.net, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: pull request: wireless 2011-12-15

W dniu 16 grudnia 2011 07:40 użytkownik Rafał Miłecki
<zajec5@...il.com> napisał:
> W dniu 15 grudnia 2011 22:38 użytkownik John W. Linville
> <linville@...driver.com> napisał:
>> On Thu, Dec 15, 2011 at 09:04:29PM +0100, Rafał Miłecki wrote:
>>> 2011/12/15 John W. Linville <linville@...driver.com>:
>>> > commit 42a3b63bb2ca4996a3d1210a004eae2333f1119e
>>> >
>>> > Dave,
>>> >
>>> > Here are a few more fixes intended for the 3.2 release.  They are
>>> > all small and narrowly focused.
>>>
>>> John, I've made a mistake and didn't use [PATCH 3.2] header to make it
>>> clean my patch is fix. Could you take a look at
>>> [PATCH] bcma: support for suspend and resume
>>> please?
>>>
>>> It's not one-liner, but fixes lock ups, which I believe - we really
>>> want to avoid.
>>
>> It's late in the release cycle, and Dave specifically asked me to slow down.
>>
>> Are these suspend/resume lockups a regression?  Or have they always
>> been there?  Do they happen to everyone?
>
> The bug is present since first days of bcma. That's why I even decided
> to add stable to CC.
>
> Personally I've tested that only on 1 machine (I don't have more
> suspendable machines with mini PCIe slot). However all Macbook 8.1/8.2
> users have to remove b43 & bcma before suspending [0], they complain
> about that since ever.
>
> Arend: I know you're also complaining for suspend in bcma. Can you
> comment on this?
>
> [0] http://ubuntuforums.org/showthread.php?t=1695746

User nephyrin on #bcm-users has confirmed this patch fixes
suspend&resume for him. Without this patch he got deadlock without
seeing any kernel panic logs - quite an ugly case.

I still think this patch may be worth taking as fix and backporting too.

-- 
Rafał
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