CC: linux-kernel@vger.kernel.org
TO: Daniel Vetter <redacted>

tree:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
head:   45d9c8dde4cd8589f9180309ec60f0da2ce486e4
commit: 804b6e5ee613b019b942ba6be52cccecd9d33655 [2/3] drm/shmem-helpers: Allocate wc pages on x86
config: x86_64-randconfig-a001-20210829 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add drm-drm-misc git://anongit.freedesktop.org/drm/drm-misc
        git fetch --no-tags drm-drm-misc drm-misc-next
        git checkout 804b6e5ee613b019b942ba6be52cccecd9d33655
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash block// drivers/gpu/ fs/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

quoted

drivers/gpu/drm/drm_gem_shmem_helper.o: warning: objtool: drm_gem_shmem_purge_locked()+0x2f6: unreachable instruction

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org