warning: (PMAC_BACKLIGHT && ..) selects FB_BACKLIGHT which has unmet direct dependencies (HAS_IOMEM && ..)

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   85e97be32c6242c98dbbc7a241b4a78c1b93327b
commit: 339b19e3c4ff728a5dcdbd388a5fbe83c1aabc37 drm/ast: make fbdev support really optional
date:   3 weeks ago
config: x86_64-randconfig-b0-08111650 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout 339b19e3c4ff728a5dcdbd388a5fbe83c1aabc37
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

warning: (PMAC_BACKLIGHT && DRM_NOUVEAU && FB_TFT) selects FB_BACKLIGHT which has unmet direct dependencies (HAS_IOMEM && FB)

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

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