[radeon-alex:amd-staging-4.7 1432/1444] ERROR: "amd_set_clockgating_by_smu" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!

[kbuild test robot]

tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-4.7
head:   1dc235cbe74b44f34e0962b86fc548eee7fe6ec0
commit: a5cce7abb3d24dd2bdab47d663e3d21f91ca1d8d [1432/1444] drm/amdgpu: set system clock gating for tonga/polaris.
config: i386-randconfig-r0-09190352 (attached as .config)
compiler: gcc-5 (Debian 5.4.1-2) 5.4.1 20160904
reproduce:
        git checkout a5cce7abb3d24dd2bdab47d663e3d21f91ca1d8d
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

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

---
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