[radeon-alex:drm-next-4.12 202/315] ERROR: "soc15_grbm_select" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!

[kbuild test robot]

tree:   git://people.freedesktop.org/~agd5f/linux.git drm-next-4.12
head:   60508d3df2d2052881190ac82802a12cabcef53c
commit: b1023571479020e9e9c15a51b43bf8e15406952b [202/315] drm/amdgpu: implement GFX 9.0 support (v2)
config: x86_64-randconfig-s2-03311121 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout b1023571479020e9e9c15a51b43bf8e15406952b
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the radeon-alex/drm-next-4.12 HEAD 60508d3df2d2052881190ac82802a12cabcef53c builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> ERROR: "soc15_grbm_select" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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