Re: dw_mipi_dsi-stm.c:(.text+0x8db9a3): undefined reference to `clk_hw_unregister'

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On Tue, Sep 10, 2024 at 12:48:49PM GMT, Raphael Gallais-Pou wrote:
> 
> On 9/9/24 10:45, Borislav Petkov wrote:
> > On Mon, Sep 09, 2024 at 08:57:57AM +0200, Raphael Gallais-Pou wrote:
> >> Arnd Bergmann sent a patch regarding this issue on x86 that I merged several
> >> weeks ago.
> >>
> >> https://lore.kernel.org/lkml/20240719075454.3595358-1-arnd@xxxxxxxxxx/
> >> https://lore.kernel.org/all/c3d0757a-07c0-4f83-9f06-c3ad205aa1e9@xxxxxxxxxxx/
> > Thanks.
> >
> >> Now, I'm not familiar with PowerPC architecture and toolchains, but I think
> >> this patch should fix your problem.  Do you have the above fixup in your
> >> tree ? If not please try it.
> > Not PowerPC - it is an x86 build. I do random config builds as part of build
> > testing and when a driver depends on COMPILE_TEST, it does gets built in some
> > .configs. So some may fail, as in this case.
> 
> Unless I am mistaken, the link you provided refers to a PowerPC linker error:
> 
> [...]
> 
> compiler: powerpc-linux-gcc (GCC) 14.1.0
> 
> [...]
>    powerpc-linux-ld: drivers/gpu/drm/stm/dw_mipi_dsi-stm.o: in function `dw_mipi_dsi_stm_remove':
>    dw_mipi_dsi-stm.c:(.text+0x664): undefined reference to `of_clk_del_provider'
> >> powerpc-linux-ld: dw_mipi_dsi-stm.c:(.text+0x66c): undefined reference to `clk_hw_unregister'    powerpc-linux-ld: drivers/gpu/drm/stm/dw_mipi_dsi-stm.o: in function `dw_mipi_dsi_stm_probe':
>    dw_mipi_dsi-stm.c:(.text+0x98c): undefined reference to `clk_hw_register'
> 
> >
> > So I think you should send that patch to Linus now so that such randconfig
> > builds do not fail anymore.
> 
> What do you mean by 'sending it to Linus' ? If you meant to do a pull request,
> then no. This patch is already in the drm-misc tree, which means it will keep
> its usual pace of merging with the rest of the drm-misc tree.
> 
> For more information about drm-misc tree:
> https://drm.pages.freedesktop.org/maintainer-tools/repositories/drm-misc.html#merge-timeline

That's not entirely correct. This should have been merged in
drm-misc-fixes to begin with. I've cherry-picked the patch and pushed
it.

Maxime

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