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SubjectRe: SUBDIRS= replacement
Hi Christoph

On Thu, Jan 17, 2019 at 03:55:31PM +0100, Christoph Hellwig wrote:
> Hi Masahiro, hi Michal,
>
> I just got this beatiful warning:
>
> hch@carbon:~/work/xfs$ make -j4 SUBDIRS=fs/xfs
> Makefile:189: ================= WARNING ================
> Makefile:190: 'SUBDIRS' will be removed after Linux 5.3
> Makefile:191: Please use 'M=' or 'KBUILD_EXTMOD' instead
> Makefile:192: ==========================================
>
> Both the replacement seem to be geared towards building externals
> modules. But what is the replacement for just building a directory
> of the normal kernel tree?
>
> E.g. what hit this is that I rebased an XFS series, and wanted to
> compile test just the xfs code for each step using
>
> make -j4 SUBDIRS=fs/xfs

Try:

make -j4 fs/xfs/

This is the recommend way to do so.
Let us know if you see problem with this approach.

Sam

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