[kbuild-all] ERROR: "max_low_pfn" undefined!

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 42f82040ee66db13525dc6f14b8559890b2f4c1c commit: ec3e5c0f0c2b716e768c0eee0fec30d572939ef5 drm/amdgpu: make pmu support optional, again date: 9 months ago config: ia64-randconfig-r003-20200710 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 checkout ec3e5c0f0c2b716e768c0eee0fec30d572939ef5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ERROR: "min_low_pfn" [net/mac80211/mac80211.ko] undefined! ERROR: "max_low_pfn" [net/mac80211/mac80211.ko] undefined! ERROR: "min_low_pfn" [net/rxrpc/rxrpc.ko] undefined! ERROR: "max_low_pfn" [net/rxrpc/rxrpc.ko] undefined! ERROR: "max_low_pfn" [drivers/ntb/ntb_transport.ko] undefined! ERROR: "min_low_pfn" [drivers/ntb/ntb_transport.ko] undefined! ERROR: "min_low_pfn" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "max_low_pfn" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "min_low_pfn" [drivers/crypto/cavium/nitrox/n5pf.ko] undefined! ERROR: "max_low_pfn" [drivers/crypto/cavium/nitrox/n5pf.ko] undefined! ERROR: "max_low_pfn" [drivers/md/dm-crypt.ko] undefined! ERROR: "min_low_pfn" [drivers/md/dm-crypt.ko] undefined! ERROR: "max_low_pfn" [drivers/media/common/videobuf2/videobuf2-dma-contig.ko] undefined! ERROR: "min_low_pfn" [drivers/media/common/videobuf2/videobuf2-dma-contig.ko] undefined! ERROR: "ia64_delay_loop" [drivers/net/phy/mdio-cavium.ko] undefined! ERROR: "min_low_pfn" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! ERROR: "max_low_pfn" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! ERROR: "max_low_pfn" [drivers/dma/fsl-edma-common.ko] undefined! ERROR: "min_low_pfn" [drivers/dma/fsl-edma-common.ko] undefined! ERROR: "max_low_pfn" [crypto/tcrypt.ko] undefined! ERROR: "min_low_pfn" [crypto/tcrypt.ko] undefined! ERROR: "max_low_pfn" [crypto/ccm.ko] undefined! ERROR: "min_low_pfn" [crypto/ccm.ko] undefined! --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org