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Re: [PATCH v3 0/3] retpoline: add clang support + Kconfig selectable


  • To: Jan Beulich <jbeulich@xxxxxxxx>
  • From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Date: Wed, 30 Mar 2022 12:21:41 +0200
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  • Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
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On Fri, Feb 18, 2022 at 03:45:12PM +0000, Andrew Cooper wrote:
> On 18/02/2022 14:34, Roger Pau Monne wrote:
> > Hello,
> >
> > The following series adds retpoline support for clang builds, and also
> > allows the user to select whether to enable retpoline support at build
> > time via a new Kconfig option.
> >
> > I've tried adding a suitable description to the Kconfig option, but I'm
> > sure there's room for improvement.
> >
> > Thanks, Roger.
> >
> > Roger Pau Monne (3):
> >   x86/retpoline: split retpoline compiler support into separate option
> >   x86/clang: add retpoline support
> >   x86/Kconfig: introduce option to select retpoline usage
> 
> Thanks.  I think that's looking much better IMO.
> 
> One thing, we want CC_HAS_* for consistency.  I can fix this on commit.
> 
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Could the patches be backported to stable-4.16?

Thanks, Roger.



 


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