Hi Amitesh, kernel test robot noticed the following build warnings: [auto build test WARNING on lee-leds/for-leds-next] [also build test WARNING on linus/master v6.7-rc4 next-20231208] [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/Amitesh-Singh/feat-kernel-pca963x-implement-power-management/20231210-194846 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git for-leds-next patch link: https://lore.kernel.org/r/881c6ba1-1701-41be-a4ac-81cdca5f0eea%40gmail.com patch subject: [PATCH] feat(kernel/pca963x): implement power management config: arc-randconfig-002-20231211 (https://download.01.org/0day-ci/archive/20231211/202312110656.twrTxNHo-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231211/202312110656.twrTxNHo-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/202312110656.twrTxNHo-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/leds/leds-pca963x.c:399:12: warning: 'pca963x_resume' defined but not used [-Wunused-function] 399 | static int pca963x_resume(struct device *dev) | ^~~~~~~~~~~~~~ >> drivers/leds/leds-pca963x.c:385:12: warning: 'pca963x_suspend' defined but not used [-Wunused-function] 385 | static int pca963x_suspend(struct device *dev) | ^~~~~~~~~~~~~~~ vim +/pca963x_resume +399 drivers/leds/leds-pca963x.c 383 384 #ifdef CONFIG_PM > 385 static int pca963x_suspend(struct device *dev) 386 { 387 struct pca963x *chip; 388 u8 reg; 389 390 chip = dev_get_drvdata(dev); 391 392 reg = i2c_smbus_read_byte_data(chip->client, PCA963X_MODE1); 393 reg = reg | (1 << PCA963X_MODE1_SLEEP); 394 i2c_smbus_write_byte_data(chip->client, PCA963X_MODE1, reg); 395 396 return 0; 397 } 398 > 399 static int pca963x_resume(struct device *dev) 400 { 401 struct pca963x *chip; 402 u8 reg; 403 404 chip = dev_get_drvdata(dev); 405 406 reg = i2c_smbus_read_byte_data(chip->client, PCA963X_MODE1); 407 reg = reg & ~(1 << PCA963X_MODE1_SLEEP); 408 i2c_smbus_write_byte_data(chip->client, PCA963X_MODE1, reg); 409 410 return 0; 411 } 412 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
