Re: [PATCH v2 0/2] livepatch: Move tests from lib/livepatch to selftests/livepatch

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On Fri, Dec 02, 2022 at 04:05:25PM -0500, Joe Lawrence wrote:
> On 12/2/22 3:03 PM, Shuah Khan wrote:
> > On 12/2/22 02:25, Petr Mladek wrote:
> >>
> >> Yes, kABI is not backward compatible. But building the tests
> >> modules out-of-tree way would allow to build test modules with
> >> different kABI from the same sources.
> >>
> > 
> > Okay. This is a solid reason for livepatch modules to live under
> > sefltests. Let's capture this in README and the other updates that
> > need to be made to it in v3.
> > 
> 
> One additional benefit, however small, is that I think everyone is
> building production livepatches, source based or via kpatch-build, as
> out-of-tree modules.  (Miroslav/Petr/Marcos please correct me if I'm
> wrong about source based.)

You're correct. We construct our livepatches source based and build them
as out-of-tree modules.

> 
> Having the livepatch selftests live under selftests/ would imply that
> new subsystem (build) features would have to support the production
> build use case from the get go.

Agreed. This change makes the modules to be built as real world livepatches.

> 
> Regards,
> 
> -- 
> Joe
> 



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