Re: [PATCH v3 07/12] kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod

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On Fri, Jul 26, 2019 at 12:27 AM Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote:
>
> On 25.07.19 17:18, Masahiro Yamada wrote:
> > Hi Jan,
> >
> > On Thu, Jul 25, 2019 at 5:39 PM Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote:
> >>>
> >>
> >> This affects also external modules builds: I have patterns here that do
> >>
> >> [Makefile]
> >> subdir-y := some-module
> >>
> >> [some-module/Makefile]
> >> obj-m := some-module.o
> >>
> >> and since this patch, the final some-module.ko is no longer built. Am I missing
> >> something in the kbuild makefiles, or is this a regression?
> >
> > Thanks for the report.
> > Interesting. I have never imagined that Makefiles were written like that.
> >
> > I just wrote a fix-up, but I have not determined to apply it.
> > https://patchwork.kernel.org/patch/11059033/
> >
> > It is easy to fixup your Makefile, though.
>
> Thanks for addressing this quickly! I'm happy to adjust our code [1]. Is the
> suggested pattern usable with recent stable kernels as well, say down to 4.4 at
> least?

Yes, should work for any kernel version.



> Jan
>
> [1] https://github.com/siemens/jailhouse/blob/master/Kbuild#L54

Maybe,

obj-m := driver/ hypervisor/ configs/ inmates/ tools/

   and

$(patsubst %/,$(obj)/%,$(obj-m)): $(GEN_CONFIG_MK)


Not tested at all.


-- 
Best Regards
Masahiro Yamada



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