tree: https://github.com/krzk/linux n/dts-mfd-rtc-interrupt-level-fixup-exynos-sec-maxim head: 4cb9d4fa11c696c5fffcd097744f1d06360469be commit: 4cb9d4fa11c696c5fffcd097744f1d06360469be [27/27] power: supply: max17040: Do not enforce (incorrect) interrupt trigger type config: ia64-randconfig-p001-20201209 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 # https://github.com/krzk/linux/commit/4cb9d4fa11c696c5fffcd097744f1d063604... git remote add krzk-github https://github.com/krzk/linux git fetch --no-tags krzk-github n/dts-mfd-rtc-interrupt-level-fixup-exynos-sec-maxim git checkout 4cb9d4fa11c696c5fffcd097744f1d06360469be # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/ia64/include/asm/pgtable.h:154, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from arch/ia64/include/asm/sections.h:11, from include/linux/interrupt.h:20, from drivers/power/supply/max17040_battery.c:16: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:41: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ drivers/power/supply/max17040_battery.c: In function 'max17040_enable_alert_irq': 365 | unsigned int flags; | ^~~~~ vim +/flags +365 drivers/power/supply/max17040_battery.c 2e17ed94de68953 Matheus Castello 2019-12-05 361 2e17ed94de68953 Matheus Castello 2019-12-05 362 static int max17040_enable_alert_irq(struct max17040_chip *chip) 2e17ed94de68953 Matheus Castello 2019-12-05 363 { 2e17ed94de68953 Matheus Castello 2019-12-05 364 struct i2c_client *client = chip->client; 2e17ed94de68953 Matheus Castello 2019-12-05 @365 unsigned int flags; 2e17ed94de68953 Matheus Castello 2019-12-05 366 int ret; 2e17ed94de68953 Matheus Castello 2019-12-05 367 2e17ed94de68953 Matheus Castello 2019-12-05 368 flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 2e17ed94de68953 Matheus Castello 2019-12-05 369 ret = devm_request_threaded_irq(&client->dev, client->irq, NULL, 4cb9d4fa11c696c Krzysztof Kozlowski 2020-12-10 370 max17040_thread_handler, IRQF_ONESHOT, 2e17ed94de68953 Matheus Castello 2019-12-05 371 chip->battery->desc->name, chip); 2e17ed94de68953 Matheus Castello 2019-12-05 372 2e17ed94de68953 Matheus Castello 2019-12-05 373 return ret; 2e17ed94de68953 Matheus Castello 2019-12-05 374 } 2e17ed94de68953 Matheus Castello 2019-12-05 375 :::::: The code at line 365 was first introduced by commit :::::: 2e17ed94de68953b17ed91b64f4bd176cdf38ad4 power: supply: max17040: Add IRQ handler for low SOC alert :::::: TO: Matheus Castello <matheus(a)castello.eng.br&gt; :::::: CC: Sebastian Reichel <sre(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org