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Date:   Thu, 26 May 2022 21:24:00 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Yury Norov <yury.norov@gmail.com>
Cc:     Vitaly Kuznetsov <vkuznets@redhat.com>,
        Paolo Bonzini <pbonzini@redhat.com>, stable@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: Patch for stable
Message-ID: <Yo/T0LPar9q8LROO@kroah.com>
References: <Yo+t8QAgVTi2E6B4@yury-laptop>
 <Yo+vidb+a9Ctqyih@kroah.com>
 <Yo+9KLc6VG8CKeH+@yury-laptop>
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On Thu, May 26, 2022 at 10:47:20AM -0700, Yury Norov wrote:
> + Vitaly Kuznetsov <vkuznets@redhat.com>
> + Paolo Bonzini <pbonzini@redhat.com>
> 
> On Thu, May 26, 2022 at 06:49:13PM +0200, Greg Kroah-Hartman wrote:
> > On Thu, May 26, 2022 at 09:42:25AM -0700, Yury Norov wrote:
> > > Hi Greg,
> > > 
> > > Can you please consider taking the patch "KVM: x86: hyper-v: fix type
> > > of valid_bank_mask" into stable?
> > > 
> > > Commit ea8c66fe8d8f4f93df941e52120a3512d7bf5128 upstream.
> > 
> > For what kernel tree(s) should thie be backported?
> 
> For me, Ubuntu LTS is important (4.15 and 5.4). I believe, Vitaly
> and Paolo may know better for Red Hat, and in general.

Did you test this on any of these older kernels?  Please do so and
provide the backported kernels.  Also you can not skip a kernel version
(i.e. it needs to be in all stable kernels back to 5.4 if you want it
there.)

And note that 4.15 is not a supported kernel by us, please work with
Canonical if you want a patch applied to their random kernel tree.

thanks,

greg k-h