Re: linux-next: build failure after merge of the perf tree

Mark Brown
2026-01-19T17:02:42Z

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On Mon, Jan 19, 2026 at 04:55:31PM +0000, James Clark wrote:
> On 19/01/2026 4:43 pm, Mark Brown wrote:

> > No, all the -next builds are done incrementally so the working tree will
> > start with whatever the last commit that got built was. This would also
> > break bisection cases...

> Oh I see, that's an out of source build path not actually in the repo.

Yeah, all the -next builds are out of tree builds (he says grumpily
looking at the kselftest coverage he just enabled :/) - the source tree
is kept clean.

> That is a problem then, will take a look. I'm not sure why those files are
> even copied out of the tree. It would make sense if they're generated, but
> those ones specifically are not.

> Seems like the build will need to be fixed to either handle deleted files or
> just not copy them in the first place.

Great, thanks.

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