Hi Christian, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on groeck-staging/hwmon-next linus/master v6.11 next-20240920] [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/Christian-Marangi/watchdog-Add-support-for-Airoha-EN7851-watchdog/20240919-203006 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240919122759.10456-2-ansuelsmth%40gmail.com patch subject: [PATCH 2/2] watchdog: Add support for Airoha EN7851 watchdog config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240922/202409221503.OVlRRuM7-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 8663a75fa2f31299ab8d1d90288d9df92aadee88) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240922/202409221503.OVlRRuM7-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/202409221503.OVlRRuM7-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/watchdog/airoha_wdt.c:17: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/watchdog/airoha_wdt.c:17: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/watchdog/airoha_wdt.c:17: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ >> drivers/watchdog/airoha_wdt.c:155:26: error: call to undeclared function 'FIELD_MAX'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 155 | wdog_dev->max_timeout = FIELD_MAX(WDT_TIMER_VAL) / airoha_wdt->wdt_freq; | ^ 6 warnings and 1 error generated. vim +/FIELD_MAX +155 drivers/watchdog/airoha_wdt.c 125 126 static int airoha_wdt_probe(struct platform_device *pdev) 127 { 128 struct device *dev = &pdev->dev; 129 struct watchdog_device *wdog_dev; 130 struct airoha_wdt_desc *airoha_wdt; 131 int ret; 132 133 airoha_wdt = devm_kzalloc(dev, sizeof(*airoha_wdt), GFP_KERNEL); 134 if (!airoha_wdt) 135 return -ENOMEM; 136 137 airoha_wdt->base = devm_platform_ioremap_resource(pdev, 0); 138 if (IS_ERR(airoha_wdt->base)) 139 return PTR_ERR(airoha_wdt->base); 140 141 ret = device_property_read_u32(dev, "clock-frequency", 142 &airoha_wdt->wdt_freq); 143 if (ret) 144 return -EINVAL; 145 146 /* Watchdog ticks at half the bus rate */ 147 airoha_wdt->wdt_freq /= 2; 148 149 /* Initialize struct watchdog device */ 150 wdog_dev = &airoha_wdt->wdog_dev; 151 wdog_dev->timeout = heartbeat; 152 wdog_dev->info = &airoha_wdt_info; 153 wdog_dev->ops = &airoha_wdt_ops; 154 /* Bus 300MHz, watchdog 150MHz, 28 seconds */ > 155 wdog_dev->max_timeout = FIELD_MAX(WDT_TIMER_VAL) / airoha_wdt->wdt_freq; 156 wdog_dev->parent = dev; 157 158 watchdog_set_drvdata(wdog_dev, airoha_wdt); 159 watchdog_set_nowayout(wdog_dev, nowayout); 160 watchdog_stop_on_unregister(wdog_dev); 161 162 ret = devm_watchdog_register_device(dev, wdog_dev); 163 if (ret) 164 return ret; 165 166 platform_set_drvdata(pdev, airoha_wdt); 167 return 0; 168 } 169 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
