Hi Liu, kernel test robot noticed the following build warnings: [auto build test WARNING on shawnguo/for-next] [also build test WARNING on linus/master v6.13-rc1 next-20241128] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Liu-Ying/dt-bindings-display-imx-Add-i-MX8qxp-Display-Controller-processing-units/20241202-110331 base: https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git for-next patch link: https://lore.kernel.org/r/20241202025635.1274467-11-victor.liu%40nxp.com patch subject: [PATCH v5 10/19] drm/imx: Add i.MX8qxp Display Controller pixel engine config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20241202/202412021617.HmlPGJLh-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241202/202412021617.HmlPGJLh-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412021617.HmlPGJLh-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/imx/dc/dc-fl.c: In function 'dc_fl_bind': >> drivers/gpu/drm/imx/dc/dc-fl.c:136:57: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 3 [-Wformat-truncation=] 136 | snprintf(fu->name, sizeof(fu->name), "FetchLayer%d", fl->id); | ^~ drivers/gpu/drm/imx/dc/dc-fl.c:136:46: note: directive argument in the range [0, 2147483647] 136 | snprintf(fu->name, sizeof(fu->name), "FetchLayer%d", fl->id); | ^~~~~~~~~~~~~~ drivers/gpu/drm/imx/dc/dc-fl.c:136:9: note: 'snprintf' output between 12 and 21 bytes into a destination of size 13 136 | snprintf(fu->name, sizeof(fu->name), "FetchLayer%d", fl->id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- drivers/gpu/drm/imx/dc/dc-fw.c: In function 'dc_fw_bind': >> drivers/gpu/drm/imx/dc/dc-fw.c:175:56: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=] 175 | snprintf(fu->name, sizeof(fu->name), "FetchWarp%u", fw->id); | ^~ drivers/gpu/drm/imx/dc/dc-fw.c:175:46: note: directive argument in the range [0, 2147483647] 175 | snprintf(fu->name, sizeof(fu->name), "FetchWarp%u", fw->id); | ^~~~~~~~~~~~~ drivers/gpu/drm/imx/dc/dc-fw.c:175:9: note: 'snprintf' output between 11 and 20 bytes into a destination of size 13 175 | snprintf(fu->name, sizeof(fu->name), "FetchWarp%u", fw->id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +136 drivers/gpu/drm/imx/dc/dc-fl.c 92 93 static int dc_fl_bind(struct device *dev, struct device *master, void *data) 94 { 95 struct platform_device *pdev = to_platform_device(dev); 96 struct dc_drm_device *dc_drm = data; 97 struct dc_pe *pe = dc_drm->pe; 98 void __iomem *base_cfg; 99 struct dc_fl *fl; 100 struct dc_fu *fu; 101 int i; 102 103 fl = devm_kzalloc(dev, sizeof(*fl), GFP_KERNEL); 104 if (!fl) 105 return -ENOMEM; 106 107 fu = &fl->fu; 108 109 base_cfg = devm_platform_ioremap_resource_byname(pdev, "cfg"); 110 if (IS_ERR(base_cfg)) 111 return PTR_ERR(base_cfg); 112 113 fu->reg_cfg = devm_regmap_init_mmio(dev, base_cfg, 114 &dc_fl_cfg_regmap_config); 115 if (IS_ERR(fu->reg_cfg)) 116 return PTR_ERR(fu->reg_cfg); 117 118 fl->id = of_alias_get_id(dev->of_node, "dc0-fetchlayer"); 119 if (fl->id < 0) { 120 dev_err(dev, "failed to get alias id: %d\n", fl->id); 121 return fl->id; 122 } 123 124 fu->link_id = LINK_ID_FETCHLAYER0; 125 fu->id = DC_FETCHUNIT_FL0; 126 for (i = 0; i < DC_FETCHUNIT_FRAC_NUM; i++) { 127 fu->reg_baseaddr[i] = BASEADDRESS(i); 128 fu->reg_sourcebufferattributes[i] = SOURCEBUFFERATTRIBUTES(i); 129 fu->reg_sourcebufferdimension[i] = SOURCEBUFFERDIMENSION(i); 130 fu->reg_layeroffset[i] = LAYEROFFSET(i); 131 fu->reg_clipwindowoffset[i] = CLIPWINDOWOFFSET(i); 132 fu->reg_clipwindowdimensions[i] = CLIPWINDOWDIMENSIONS(i); 133 fu->reg_constantcolor[i] = CONSTANTCOLOR(i); 134 fu->reg_layerproperty[i] = LAYERPROPERTY(i); 135 } > 136 snprintf(fu->name, sizeof(fu->name), "FetchLayer%d", fl->id); 137 138 dc_fl_set_ops(fu); 139 140 pe->fu_disp[fu->id] = fu; 141 142 return 0; 143 } 144 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
