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Date: Tue, 13 Feb 2018 20:51:32 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Mario Limonciello <mario.limonciello@dell.com>
Cc: linux-stable <stable@vger.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH] platform/x86: dell-laptop: Allocate buffer on heap
 rather than globally
Message-ID: <20180213195132.GA22142@kroah.com>
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On Tue, Feb 13, 2018 at 01:39:19PM -0600, Mario Limonciello wrote:
> There is no longer a need for the buffer to be defined in
> first 4GB physical address space.
> 
> Furthermore there may be race conditions with multiple different functions
> working on a module wide buffer causing incorrect results.
> 
> This commit has been backported from:
> commit 9862b43624 upstream
> 
> Fixes: 549b4930f057658dc50d8010e66219233119a4d8
> Suggested-by: Pali Rohar <pali.rohar@gmail.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/platform/x86/dell-laptop.c | 188 ++++++++++++++++++++-----------------
>  1 file changed, 103 insertions(+), 85 deletions(-)

Why is this a stable patch?  What bug does it fix?

confused,

greg k-h