tree: https://github.com/cminyard/linux-ipmi ipmi-wdt-rework head: e25cca1514b717a229931e182000c21bb5a74db3 commit: 8fbe2d52d47664f9391872afdea91875734d49fc [6/14] watchdog: Add functions to set the timeout and pretimeout config: i386-randconfig-r001-20200621 (attached as .config) compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 reproduce (this is a W=1 build): git checkout 8fbe2d52d47664f9391872afdea91875734d49fc # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>): static int watchdog_set_timeout(struct fschmd_data *data, int timeout) ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/hwmon/fschmd.c:34:0: include/linux/watchdog.h:205:5: note: previous declaration of 'watchdog_set_timeout' was here int watchdog_set_timeout(struct watchdog_device *wdd, unsigned int timeout); ^~~~~~~~~~~~~~~~~~~~ vim +/watchdog_set_timeout +697 drivers/hwmon/fschmd.c 569ff1022662a8 Hans de Goede 2007-10-11 691 569ff1022662a8 Hans de Goede 2007-10-11 692 569ff1022662a8 Hans de Goede 2007-10-11 693 /* 97950c3d423e47 Hans de Goede 2009-01-07 694 * Watchdog routines 97950c3d423e47 Hans de Goede 2009-01-07 695 */ 97950c3d423e47 Hans de Goede 2009-01-07 696 97950c3d423e47 Hans de Goede 2009-01-07 @697 static int watchdog_set_timeout(struct fschmd_data *data, int timeout) 97950c3d423e47 Hans de Goede 2009-01-07 698 { 97950c3d423e47 Hans de Goede 2009-01-07 699 int ret, resolution; 97950c3d423e47 Hans de Goede 2009-01-07 700 int kind = data->kind + 1; /* 0-x array index -> 1-x module param */ 97950c3d423e47 Hans de Goede 2009-01-07 701 97950c3d423e47 Hans de Goede 2009-01-07 702 /* 2 second or 60 second resolution? */ 97950c3d423e47 Hans de Goede 2009-01-07 703 if (timeout <= 510 || kind == fscpos || kind == fscscy) 97950c3d423e47 Hans de Goede 2009-01-07 704 resolution = 2; 97950c3d423e47 Hans de Goede 2009-01-07 705 else 97950c3d423e47 Hans de Goede 2009-01-07 706 resolution = 60; 97950c3d423e47 Hans de Goede 2009-01-07 707 97950c3d423e47 Hans de Goede 2009-01-07 708 if (timeout < resolution || timeout > (resolution * 255)) 97950c3d423e47 Hans de Goede 2009-01-07 709 return -EINVAL; 97950c3d423e47 Hans de Goede 2009-01-07 710 97950c3d423e47 Hans de Goede 2009-01-07 711 mutex_lock(&data->watchdog_lock); 97950c3d423e47 Hans de Goede 2009-01-07 712 if (!data->client) { 97950c3d423e47 Hans de Goede 2009-01-07 713 ret = -ENODEV; 97950c3d423e47 Hans de Goede 2009-01-07 714 goto leave; 97950c3d423e47 Hans de Goede 2009-01-07 715 } 97950c3d423e47 Hans de Goede 2009-01-07 716 97950c3d423e47 Hans de Goede 2009-01-07 717 if (resolution == 2) 97950c3d423e47 Hans de Goede 2009-01-07 718 data->watchdog_control &= ~FSCHMD_WDOG_CONTROL_RESOLUTION; 97950c3d423e47 Hans de Goede 2009-01-07 719 else 97950c3d423e47 Hans de Goede 2009-01-07 720 data->watchdog_control |= FSCHMD_WDOG_CONTROL_RESOLUTION; 97950c3d423e47 Hans de Goede 2009-01-07 721 97950c3d423e47 Hans de Goede 2009-01-07 722 data->watchdog_preset = DIV_ROUND_UP(timeout, resolution); 97950c3d423e47 Hans de Goede 2009-01-07 723 97950c3d423e47 Hans de Goede 2009-01-07 724 /* Write new timeout value */ c69ab2b78efbe3 Hans de Goede 2009-03-30 725 i2c_smbus_write_byte_data(data->client, c69ab2b78efbe3 Hans de Goede 2009-03-30 726 FSCHMD_REG_WDOG_PRESET[data->kind], data->watchdog_preset); 97950c3d423e47 Hans de Goede 2009-01-07 727 /* Write new control register, do not trigger! */ c69ab2b78efbe3 Hans de Goede 2009-03-30 728 i2c_smbus_write_byte_data(data->client, c69ab2b78efbe3 Hans de Goede 2009-03-30 729 FSCHMD_REG_WDOG_CONTROL[data->kind], 97950c3d423e47 Hans de Goede 2009-01-07 730 data->watchdog_control & ~FSCHMD_WDOG_CONTROL_TRIGGER); 97950c3d423e47 Hans de Goede 2009-01-07 731 97950c3d423e47 Hans de Goede 2009-01-07 732 ret = data->watchdog_preset * resolution; 97950c3d423e47 Hans de Goede 2009-01-07 733 97950c3d423e47 Hans de Goede 2009-01-07 734 leave: 97950c3d423e47 Hans de Goede 2009-01-07 735 mutex_unlock(&data->watchdog_lock); 97950c3d423e47 Hans de Goede 2009-01-07 736 return ret; 97950c3d423e47 Hans de Goede 2009-01-07 737 } 97950c3d423e47 Hans de Goede 2009-01-07 738 :::::: The code at line 697 was first introduced by commit :::::: 97950c3d423e474ef887749b238ee67731b532fe hwmon: (fschmd) Add watchdog support :::::: TO: Hans de Goede <hdegoede(a)redhat.com&gt; :::::: CC: Jean Delvare <khali(a)linux-fr.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org