[stretch] ABI bump for 4.9 with retpoline support?

From	Yves-Alexis Perez <corsac@debian.org>
Newsgroups	linux.debian.kernel
Subject	[stretch] ABI bump for 4.9 with retpoline support?
Date	2018-02-16 12:00 +0100
Message-ID	<vjLUd-7UK-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi kernel team

I am currently working on 4.9.81 (and will work on 4.9.82 when it's out) for
stretch-pu. Fixes for Spectre started appearing in recent versions (especially
retpoline) and Moritz has worked a lot on gcc with retpoline support, so it
looks that we'll be able to ship a kernel with retpoline enabled and
functional in stretch-pu before the next point release.

It doesn't seem that building with a retpoline-aware gcc will bump the ABI by
itself, but do we still want to do it?

There's a bunch of ABI breaks in 4.9.81 again, and we ignored/reverted a lot
of them since 4.9.65+kaiser, so maybe it'll be a good idea at one point, but I
don't have a strong opinion on this right now.

Regards, 
-- 
Yves-Alexis

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Thread

[stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-16 12:00 +0100
  Re: [stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-16 18:40 +0100
    Re: [stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-17 21:00 +0100
      Re: [stretch] ABI bump for 4.9 with retpoline support? Moritz Mühlenhoff <jmm@inutil.org> - 2018-02-18 12:20 +0100
    Re: [stretch] ABI bump for 4.9 with retpoline support? Ben Hutchings <ben@decadent.org.uk> - 2018-02-17 21:00 +0100

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