linux-kernel - Re: [PATCH AUTOSEL 4.14 10/21] ARM: make lookup_processor_type() non-_

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Message-ID: <20181128173928.GI30658@n2100.armlinux.org.uk>
Date:   Wed, 28 Nov 2018 17:39:28 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Sasha Levin <sashal@...nel.org>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 4.14 10/21] ARM: make lookup_processor_type()
 non-__init

On Wed, Nov 28, 2018 at 09:12:52AM -0500, Sasha Levin wrote:
> On Fri, Nov 23, 2018 at 12:02:54AM +0000, Russell King - ARM Linux wrote:
> >Hi Sasha,
> >
> >We need to keep track of which Spectre patches have been backported
> >and which haven't.  David Long has been doing the backport work,
> >which doesn't include all the patches in my present spectre branch.
> >You've picked up the last five, meaning there's a bunch in the middle
> >of the entire series which haven't yet been considered - for example,
> >the Spectre variant 1.1 patches.
> 
> I'll drop all the ones you pointed out from my branches. Sometimes it's
> difficult to tell if a certain patch is part of the spectre fix.

Given that all the 32-bit ARM Spectre patches are sequential in a
branch, it shouldn't be too difficult as it's possible to list all
the commit IDs using:

$ git rev-list v4.16..383fb3ee8024

where 383fb3ee8024 is the current head.  I'm not anticipating at this
time anything further.

> >The entire series of 32-bit ARM Spectre patches can be listed in
> >mainline via:
> >
> >$ git log v4.16..383fb3ee8024
> >
> >where almost all of those need to be applied to stable kernels, with
> >possible manual back-porting where they don't apply.
> 
> Is it something that will be backported at some point?

Yes, as I mentioned, this is work that David Long is undertaking,
with a separate review process before submitting the backported
patches for inclusion in the appropriate stable tree.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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