> -----Original Message----- > From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] > Sent: Tuesday, February 13, 2018 1:52 PM > To: Limonciello, Mario <Mario_Limonciello@xxxxxxxx> > Cc: linux-stable <stable@xxxxxxxxxxxxxxx>; Andy Shevchenko > <andriy.shevchenko@xxxxxxxxxxxxxxx> > 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@xxxxxxxxx> > > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxxx> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > --- > > 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. No kernel Bugzilla as far as I could tell was filed for it though. Thanks,