2019-08-22 07:03:47

by Abdul Haleem

[permalink] [raw]
Subject: [linux-next][PPC][bisected c7d8b7][gcc 6.4.1] build error at drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:1471

Greeting's

Today's linux-next kernel 5.3.0-rc5-next-20190820 failed to build on my
powerpc machine

Build errors:
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c: In function amdgpu_exit:
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:1471:2: error: implicit
declaration of function mmu_notifier_synchronize
[-Werror=implicit-function-declaration]
mmu_notifier_synchronize();
^~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[4]: *** [drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o] Error 1
make[3]: *** [drivers/gpu/drm/amd/amdgpu] Error 2

It was introduced with commit c7d8b7 (hmm: use mmu_notifier_get/put for
'struct hmm')

error disappears when commit is reverted.

--
Regard's

Abdul Haleem
IBM Linux Technology Centre




2019-08-22 07:04:37

by Stephen Rothwell

[permalink] [raw]
Subject: Re: [linux-next][PPC][bisected c7d8b7][gcc 6.4.1] build error at drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:1471

Hi Abdul,

On Thu, 22 Aug 2019 11:16:51 +0530 Abdul Haleem <[email protected]> wrote:
>
> Today's linux-next kernel 5.3.0-rc5-next-20190820 failed to build on my
> powerpc machine
>
> Build errors:
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c: In function amdgpu_exit:
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:1471:2: error: implicit
> declaration of function mmu_notifier_synchronize
> [-Werror=implicit-function-declaration]
> mmu_notifier_synchronize();
> ^~~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> make[4]: *** [drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o] Error 1
> make[3]: *** [drivers/gpu/drm/amd/amdgpu] Error 2
>
> It was introduced with commit c7d8b7 (hmm: use mmu_notifier_get/put for
> 'struct hmm')

This should have been fixed in next-20190821.

--
Cheers,
Stephen Rothwell


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