tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 46debfec12b4e038b93c62a86bd78ae62f9ba4ea commit: e2b44fa97cb8f316d61555ef1a45cfee8dbd5c93 [9608/9715] Merge remote-tracking branch 'drm/drm-next' config: arm64-allyesconfig (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 e2b44fa97cb8f316d61555ef1a45cfee8dbd5c93 # 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 >>): drivers/gpu/drm/mediatek/mtk_disp_aal.c: In function 'mtk_aal_config': 60 | mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_AAL_OUTPUT_SIZE); | ^~~~ drivers/gpu/drm/mediatek/mtk_disp_aal.c:60:47: note: each undeclared identifier is reported only once for each function it appears in vim +/priv +60 drivers/gpu/drm/mediatek/mtk_disp_aal.c 52 53 void mtk_aal_config(struct device *dev, unsigned int w, 54 unsigned int h, unsigned int vrefresh, 55 unsigned int bpc, struct cmdq_pkt *cmdq_pkt) 56 { 57 struct mtk_disp_aal *aal = dev_get_drvdata(dev); 58 59 mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_SIZE); 61 } 62 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org