Re: mainline build failure (new) for x86_64 allmodconfig with clang

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Hi Nathan,

On Sat, Sep 17, 2022 at 2:25 PM Nathan Chancellor <nathan@xxxxxxxxxx> wrote:
>
> Hi Sudip,
>
> On Sat, Sep 17, 2022 at 11:55:05AM +0100, Sudip Mukherjee (Codethink) wrote:
> > Hi All,
> >
> > The latest mainline kernel branch fails to build for x86_64 allmodconfig
> > with clang. The errors are:
> >
> > drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_mode_vba_314.c:4020:6: error: stack frame size (2184) exceeds limit (2048) in 'dml314_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
> > void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
> >      ^
> > 1 error generated.
> >
> >
> > Note: This is a new error seen on top on a335366bad13 ("Merge tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux").
> > Previous reported clang build error is now fixed, thanks to Nathan.
> >
> > And, it appears Nathan has already sent a fix for this:
> > https://github.com/intel-lab-lkp/linux/commit/4ecc45d7585ae2e05d622879ad97e13a7d8c595b
> > https://github.com/intel-lab-lkp/linux/commit/819976a950b497d7f10cd9a198a94c26a9005b30
>
> I did not realize this was a mainline issue too :( it seems that
> commit af2f2a256e04 ("drm/amd/display: Enable dlg and vba compilation
> for dcn314") is needed to see this and it was only in -next for three
> releases (20220914 to 20220916), which I missed checking as closely as I
> normally do due to Plumbers wrapping up and traveling.

This has become a mainline issue since today.
I saw in it linux-next also, but missed reporting :(


-- 
Regards
Sudip



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