-----Original Message----- From: Greg KH [mailto:gregkh@linuxfoundation.org] Sent: Thursday, February 15, 2018 8:28 AM To: Limonciello, Mario Mario_Limonciello@Dell.com Cc: stable@vger.kernel.org; andriy.shevchenko@linux.intel.com Subject: Re: [PATCH] platform/x86: dell-laptop: Allocate buffer on heap rather than globally
On Tue, Feb 13, 2018 at 07:54:10PM +0000, Mario.Limonciello@dell.com wrote:
-----Original Message----- From: Greg KH [mailto:gregkh@linuxfoundation.org] Sent: Tuesday, February 13, 2018 1:52 PM To: Limonciello, Mario 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
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
Greg,
I realized I forgot to send this 2 weeks ago when you said a clean backport didn't work. This was a follow up from a race condition that was seen in the wild and submitted to platform-x86.
Ok, what kernel tree(s) do you want it applied to? I need a hint please :)
thanks,
greg k-h
4.15.y please.
Thank you,