Hi Yongqiang, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on pza/reset/next linus/master v5.12-rc7] [cannot apply to next-20210413] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Yongqiang-Niu/gamma-set-with-cmdq/20210412-143659 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-randconfig-r023-20210413 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/b562bd6c318f4681373221cc292c78d51cb819e6 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yongqiang-Niu/gamma-set-with-cmdq/20210412-143659 git checkout b562bd6c318f4681373221cc292c78d51cb819e6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/mediatek/mtk_disp_gamma.c:76:50: warning: incompatible pointer to integer conversion passing 'void *' to parameter of type 'unsigned int' [-Wint-conversion] mtk_ddp_write(cmdq_pkt, word, cmdq_reg, regs, (lut_base + i * 4)); ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h:199:19: note: passing argument to parameter 'offset' here unsigned int offset); ^ 1 warning generated. vim +76 drivers/gpu/drm/mediatek/mtk_disp_gamma.c 57 58 void mtk_gamma_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg, 59 struct drm_crtc_state *state, struct cmdq_pkt *cmdq_pkt) 60 { 61 unsigned int i, reg; 62 struct drm_color_lut *lut; 63 void __iomem *lut_base; 64 u32 word; 65 66 if (state->gamma_lut) { 67 reg = readl(regs + DISP_GAMMA_CFG); 68 reg = reg | GAMMA_LUT_EN; 69 mtk_ddp_write(cmdq_pkt, reg, cmdq_reg, regs, DISP_GAMMA_CFG); 70 lut_base = regs + DISP_GAMMA_LUT; 71 lut = (struct drm_color_lut *)state->gamma_lut->data; 72 for (i = 0; i < MTK_LUT_SIZE; i++) { 73 word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + 74 (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + 75 ((lut[i].blue >> 6) & LUT_10BIT_MASK); > 76 mtk_ddp_write(cmdq_pkt, word, cmdq_reg, regs, (lut_base + i * 4)); 77 } 78 } 79 } 80 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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