Hi Mario, kernel test robot noticed the following build warnings: [auto build test WARNING on 2cc14f52aeb78ce3f29677c2de1f06c0e91471ab] url: https://github.com/intel-lab-lkp/linux/commits/Mario-Limonciello/rtc-mc146818-lib-Adjust-failure-return-code-for-mc146818_get_time/20231128-032825 base: 2cc14f52aeb78ce3f29677c2de1f06c0e91471ab patch link: https://lore.kernel.org/r/20231127192553.9734-4-mario.limonciello%40amd.com patch subject: [PATCH v3 3/4] rtc: Add support for configuring the UIP timeout for RTC reads config: alpha-defconfig (https://download.01.org/0day-ci/archive/20231128/202311280605.EB8LQAVD-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231128/202311280605.EB8LQAVD-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/202311280605.EB8LQAVD-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:22, from arch/alpha/include/asm/bug.h:23, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:6, from ./arch/alpha/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/delay.h:23, from drivers/rtc/rtc-mc146818-lib.c:3: drivers/rtc/rtc-mc146818-lib.c: In function 'mc146818_avoid_UIP': >> include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/printk.h:427:25: note: in definition of macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~ include/linux/printk.h:508:9: note: in expansion of macro 'printk' 508 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~ include/linux/kern_levels.h:12:25: note: in expansion of macro 'KERN_SOH' 12 | #define KERN_WARNING KERN_SOH "4" /* warning conditions */ | ^~~~~~~~ include/linux/printk.h:508:16: note: in expansion of macro 'KERN_WARNING' 508 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~ drivers/rtc/rtc-mc146818-lib.c:81:25: note: in expansion of macro 'pr_warn' 81 | pr_warn("Reading current time from RTC took around %d ms\n", | ^~~~~~~ vim +5 include/linux/kern_levels.h 314ba3520e513a Joe Perches 2012-07-30 4 04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c83d0e3a Joe Perches 2012-07-30 7 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki