Hi Stephen, I love your patch! Yet something to improve: [auto build test ERROR on 8124c8a6b35386f73523d27eacb71b5364a68c4c] url: https://github.com/0day-ci/linux/commits/Stephen-Boyd/i2c-core-Disable-client-irq-on-reboot-shutdown/20210605-052848 base: 8124c8a6b35386f73523d27eacb71b5364a68c4c config: nios2-randconfig-s031-20210604 (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://github.com/0day-ci/linux/commit/2fb1417bc9d82a335db5ed8a1446be74bffae440 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Stephen-Boyd/i2c-core-Disable-client-irq-on-reboot-shutdown/20210605-052848 git checkout 2fb1417bc9d82a335db5ed8a1446be74bffae440 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/i2c/i2c-core-base.c: In function 'i2c_device_shutdown': >> drivers/i2c/i2c-core-base.c:631:3: error: implicit declaration of function 'disable_irq'; did you mean 'disable_srat'? [-Werror=implicit-function-declaration] 631 | disable_irq(client->irq); | ^~~~~~~~~~~ | disable_srat cc1: some warnings being treated as errors vim +631 drivers/i2c/i2c-core-base.c 619 620 static void i2c_device_shutdown(struct device *dev) 621 { 622 struct i2c_client *client = i2c_verify_client(dev); 623 struct i2c_driver *driver; 624 625 if (!client || !dev->driver) 626 return; 627 driver = to_i2c_driver(dev->driver); 628 if (driver->shutdown) 629 driver->shutdown(client); 630 else if (client->irq > 0) > 631 disable_irq(client->irq); 632 } 633 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org