linux-kernel - RE: [ 099/171 ] mwifiex: fix race when queuing commands

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Message-ID: <477F20668A386D41ADCC57781B1F70430D9DE96BE2@SC-VEXCH1.marvell.com>
Date:	Thu, 11 Apr 2013 14:29:55 -0700
From:	Bing Zhao <bzhao@...vell.com>
To:	Steven Rostedt <rostedt@...dmis.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
CC:	Daniel Drake <dsd@...top.org>, Marco Cesarano <marco@...vell.com>,
	Amitkumar Karwar <akarwar@...vell.com>,
	"John W. Linville" <linville@...driver.com>
Subject: RE: [ 099/171 ] mwifiex: fix race when queuing commands

Hi Steven,

> 3.6.11.2 stable review patch.
> If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Amitkumar Karwar <akarwar@...vell.com>
> 
> [ Upstream commit 00d7ea11ff0783e24fe70778f3141270b561aaa1 ]
> 
> Running the following script repeatedly on XO-4 with SD8787
> produces command timeout and system lockup.

The patch 099/171 and 100/171 (mwifiex: skip pending commands after function shutdown) are intended for 3.8 to solve a race issue found on XO-4 platform.

For 3.7 and lower kernel versions, these patches are not verified.
I'd suggest do not merge them to 3.6.11.x to avoid potential side effects.

Later, if we get a user report of the same problem on 3.6, we can verify these patches on his/her platform and add these patches back.

Thanks,
Bing

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