Hi Lorenzo, kernel test robot noticed the following build errors: [auto build test ERROR on 8400291e289ee6b2bf9779ff1c83a291501f017b] url: https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Bianconi/dt-bindings-pwm-Document-Airoha-EN7581-PWM/20240818-200409 base: 8400291e289ee6b2bf9779ff1c83a291501f017b patch link: https://lore.kernel.org/r/20240818-airoha-pwm-drv-v3-2-e398f3e41916%40kernel.org patch subject: [PATCH v3 2/2] pwm: airoha: Add support for EN7581 SoC config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20240819/202408190953.0Ritcb6y-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240819/202408190953.0Ritcb6y-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/202408190953.0Ritcb6y-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): sh4-linux-ld: drivers/pwm/pwm-airoha.o: in function `airoha_pwm_config_flash_map': >> pwm-airoha.c:(.text+0xd0): undefined reference to `__ffssi2' sh4-linux-ld: drivers/pwm/pwm-airoha.o: in function `airoha_pwm_apply': pwm-airoha.c:(.text+0x7f0): undefined reference to `__ffssi2' sh4-linux-ld: drivers/media/i2c/tc358746.o: in function `tc358746_probe': tc358746.c:(.text+0x1b90): undefined reference to `devm_clk_hw_register' sh4-linux-ld: tc358746.c:(.text+0x1b98): undefined reference to `devm_of_clk_add_hw_provider' sh4-linux-ld: tc358746.c:(.text+0x1b9c): undefined reference to `of_clk_hw_simple_get' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki