Hi John, kernel test robot noticed the following build errors: [auto build test ERROR on b794563ea12fb46d9499da9e30c33d9607e33697] url: https://github.com/intel-lab-lkp/linux/commits/John-Ogness/serial-8250-Split-out-IER-from-rs485_start_tx/20240913-220810 base: b794563ea12fb46d9499da9e30c33d9607e33697 patch link: https://lore.kernel.org/r/20240913140538.221708-3-john.ogness%40linutronix.de patch subject: [PATCH next v2 2/4] serial: 8250: Split out IER from rs485_stop_tx() config: parisc-randconfig-r064-20240914 (https://download.01.org/0day-ci/archive/20240914/202409141849.iyZNNZgc-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240914/202409141849.iyZNNZgc-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/202409141849.iyZNNZgc-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 drivers/devfreq/governor_performance.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_userspace.o >> ERROR: modpost: "serial8250_rs485_stop_tx" [drivers/tty/serial/8250/8250_omap.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
