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-allmodconfig (https://download.01.org/0day-ci/archive/20240819/202408190759.z1PdIIZb-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/20240819/202408190759.z1PdIIZb-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/202408190759.z1PdIIZb-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/locking/test-ww_mutex.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_objpool.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/ch341.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/usb_debug.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/mxuport.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/navman.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/qcaux.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/usb-serial-simple.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/symbolserial.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_simpleondemand.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_performance.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_powersave.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_userspace.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-core.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-hub.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-aspeed.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-gpio.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-ast-cf.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-scom.o >> ERROR: modpost: "__ffssi2" [drivers/pwm/pwm-airoha.ko] undefined! ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko] undefined! ERROR: modpost: "devm_of_clk_add_hw_provider" [drivers/media/i2c/tc358746.ko] undefined! ERROR: modpost: "devm_clk_hw_register" [drivers/media/i2c/tc358746.ko] undefined! ERROR: modpost: "of_clk_hw_simple_get" [drivers/media/i2c/tc358746.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki