Hi Abdul,

On Thu, 22 Aug 2019 11:16:51 +0530 Abdul Haleem <abdhalee@linux.vnet.ibm.com> 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