tree: https://github.com/thierryreding/linux for-5.13/work head: 009ea3ee74a12859073a37d2ef800fa154ff7705 commit: bbc118a5ae5360b4b9f62107d199ed6473f1cd4e [41/49] drm/tegra: dc: Implement hardware cursor on Tegra186 and later config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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 # https://github.com/thierryreding/linux/commit/bbc118a5ae5360b4b9f62107d19... git remote add thierryreding https://github.com/thierryreding/linux git fetch --no-tags thierryreding for-5.13/work git checkout bbc118a5ae5360b4b9f62107d199ed6473f1cd4e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 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/tegra/dc.c: In function 'tegra_cursor_atomic_update': 939 | value &= ~CURSOR_COMPOSITION_MODE_XORG; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ | CURSOR_COMPOSITION_MODE_XOR drivers/gpu/drm/tegra/dc.c:939:13: note: each undeclared identifier is reported only once for each function it appears in drivers/gpu/drm/tegra/dc.c:883:6: warning: unused variable 'dma_mask' [-Wunused-variable] 883 | u64 dma_mask = *dc->dev->dma_mask; | ^~~~~~~~ vim +939 drivers/gpu/drm/tegra/dc.c 928 929 /* enable cursor and set blend mode */ 930 value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); 931 value |= CURSOR_ENABLE; 932 tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); 933 934 value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL); 935 value &= ~CURSOR_DST_BLEND_MASK; 936 value &= ~CURSOR_SRC_BLEND_MASK; 937 938 if (dc->soc->has_nvdisplay) 940 else 941 value |= CURSOR_MODE_NORMAL; 942 943 value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC; 944 value |= CURSOR_SRC_BLEND_K1_TIMES_SRC; 945 value |= CURSOR_ALPHA; 946 tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL); 947 948 /* nvdisplay relies on software for clipping */ 949 if (dc->soc->has_nvdisplay) { 950 unsigned int i, j, w, h; 951 952 x = new_state->dst.x1; 953 y = new_state->dst.y1; 954 955 i = new_state->src.x1 >> 16; 956 j = new_state->src.y1 >> 16; 957 958 value = ((j & tegra->vmask) << 16) | (i & tegra->hmask); 959 tegra_dc_writel(dc, value, DC_DISP_PCALC_HEAD_SET_CROPPED_POINT_IN_CURSOR); 960 961 w = (new_state->src.x2 - new_state->src.x1) >> 16; 962 h = (new_state->src.y2 - new_state->src.y1) >> 16; 963 964 value = ((h & tegra->vmask) << 16) | (w & tegra->hmask); 965 tegra_dc_writel(dc, value, DC_DISP_PCALC_HEAD_SET_CROPPED_SIZE_IN_CURSOR); 966 } else { 967 x = new_state->crtc_x; 968 y = new_state->crtc_y; 969 } 970 971 /* position the cursor */ 972 value = ((y & tegra->vmask) << 16) | (x & tegra->hmask); 973 tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION); 974 } 975 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org