RE: backport Rewrite sync_core() to use IRET-to-self to stable kernels?

From: Zhang, Ning A
Date: Wed Jan 24 2018 - 03:19:56 EST


Thanks Greg, Andy

How about c198b121b1a1d7a7171770c634cd49191bac4477?
Will both patches go to stable kernel?

BR.
Ning.

-----Original Message-----
From: gregkh@xxxxxxxxxxxxxxxxxxx [mailto:gregkh@xxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, January 23, 2018 3:26 PM
To: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Zhang, Ning A <ning.a.zhang@xxxxxxxxx>; tglx@xxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: backport Rewrite sync_core() to use IRET-to-self to stable kernels?

On Mon, Jan 22, 2018 at 07:06:29PM -0800, Andy Lutomirski wrote:
> On Mon, Jan 22, 2018 at 6:59 PM, Zhang, Ning A <ning.a.zhang@xxxxxxxxx> wrote:
> > hello, Greg, Andy, Thomas
> >
> > would you like to backport these two patches to LTS kernel?
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.
> > git/commit/arch/x86/include/asm/processor.h?h=v4.14.14&id=1c52d859cb
> > 2d417e7216d3e56bb7fea88444cec9
> >
> > x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit
> > kernels
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.
> > git/commit/arch/x86/include/asm/processor.h?h=v4.14.14&id=c198b121b1
> > a1d7a7171770c634cd49191bac4477
> >
> > x86/asm: Rewrite sync_core() to use IRET-to-self
> >
>
> I'd be in favor of backporting
> 1c52d859cb2d417e7216d3e56bb7fea88444cec9. I see no compelling reason
> to backport the other one, since it doesn't fix a bug. Greg, can you
> do this?

I'll work on this after this round of stable kernels are released.

thanks,

greg k-h