tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8006b911c90a4ec09958447d24c8a4c3538f5723 commit: 187502afe87a0fc96832056558978fa423920ee0 [5901/7806] drm: rcar-du: Don't create encoder for unconnected LVDS outputs config: arm64-randconfig-r002-20211014 (attached as .config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 187502afe87a0fc96832056558978fa423920ee0 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash 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 >>): aarch64-linux-ld: Unexpected GOT/PLT entries detected! aarch64-linux-ld: Unexpected run-time procedure linkages detected! aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_crtc_atomic_enable': rcar_du_crtc.c:(.text+0x1b34): undefined reference to `rcar_cmm_enable' aarch64-linux-ld: rcar_du_crtc.c:(.text+0x1ba8): undefined reference to `rcar_lvds_clk_enable' aarch64-linux-ld: rcar_du_crtc.c:(.text+0x1c44): undefined reference to `rcar_cmm_setup' aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_crtc_atomic_begin': rcar_du_crtc.c:(.text+0x1d14): undefined reference to `rcar_cmm_setup' aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_crtc_atomic_disable': rcar_du_crtc.c:(.text+0x2244): undefined reference to `rcar_cmm_disable' aarch64-linux-ld: rcar_du_crtc.c:(.text+0x232c): undefined reference to `rcar_lvds_clk_disable' aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_drv.o: in function `rcar_du_init': rcar_du_drv.c:(.init.text+0x14): undefined reference to `rcar_du_of_init' aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_encoder.o: in function `rcar_du_encoder_init': rcar_du_encoder.c:(.text+0x1f0): undefined reference to `rcar_lvds_dual_link' aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_kms.o: in function `rcar_du_modeset_init': rcar_du_kms.c:(.text+0x102c): undefined reference to `rcar_cmm_init' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org