[linux-yocto] v4.12.x - stable updates comprising v4.12.20

[Bruce Ashfield]

On 2018-02-15 7:33 PM, Paul Gortmaker wrote:
> Bruce, Yocto kernel folks:
> 
> Here is another 4.12.x stable update "extension" primarily created for
> the Yocto project, continuing on top of the previous v4.12.19 kernel.
> 
> As hinted at in the previous release, there was a desire to clear the
> queue of the stand-alone fixes to make room for more complicated
> changes we have here.
> 
> And so here we have a queue of patches that, unlike previous stable
> commits, has a much more complex interdependency, versus the stand alone
> commits we are used to seeing in stable releases of the past.
> 
> As much as I would like to not make changes to core files that aren't
> strictly bug fixes, it was necessary in order to bring back the mainline
> commits related to recent security concerns.  So we have more commits
> here in this round that don't have the normal "Fixes: <commit ID>" we
> are used to.
> 
> Expanding the sphere to include patches which were dependencies of the
> patches we wanted for KPTI seemed to be the right choice from a
> stability point of view, versus smashing a square peg into a round hole,
> even if it drove the patch count higher than I would have liked.
> 
> That said, we have a 4.12.x that contains 100% mainline commits.
> Keeping to the original stable goal of not using any commits that did
> not go mainline.  Having done this, I can appreciate the challenge, and
> how people on older releases have decided to use earlier "Kaiser"
> snapshots even though none of those commits ever were merged to mainline.
> 
> As usual, I've put this 4.12.x queue through the various testing that I
> figured made sense, which includes but is not limited to:
> 
> -x86-64 sanity boot test + workloads of defconfig on COTS Core2 box.
> -build MIPS, PPC, ARM, ARM64 with defconfig
> -build x86-64 allmodconfig/allyesconfig
> -build i386 allmodconfig/allyesconfig
> 
> I bumped the 4.12 Makefile and did the signed tag just as per the previously
> released 4.12.x versions.
> 
> Please find a signed v4.12.20 tag using this key:
> 
> http://pgp.mit.edu/pks/lookup?op=vindex&search=0xEBCE84042C07D1D6
> 
> in the repo in the kernel.org directory here:
> 
>     https://git.kernel.org/cgit/linux/kernel/git/paulg/linux-4.12.y.git/
>     git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux-4.12.y.git
> 
> for merge to standard/base in linux-yocto-4.12 and then out from there
> into the other base and BSP branches.
> 
> For those who are interested, the evolution of the commits is here:
> 
>     https://git.kernel.org/cgit/linux/kernel/git/paulg/longterm-queue-4.12.git/
> 
> This repo isn't needed for anything; it just exists for transparency and
> so people can see the raw commits that were used to create this 4.12.x
> release, similar to Greg's stable queue:
> 
>     https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/
> 
> One thing which is new for this release, is that the series file does now
> contain annotations which show the chronological progression of the
> commits in mainline, since that was instrumental in trying to get this
> release right.

Thanks Paul.

These are now staged locally and have passed build/boot tests on both
standard and -rt for me.

I'll have SRCREVs for the update sent shortly.

Bruce

> 
> Paul.
> --
>