Hi Florian, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on tty/tty-next tty/tty-linus pavel-leds/for-next staging/staging-testing staging/staging-next staging/staging-linus linus/master v6.2-rc8 next-20230213] [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/Florian-Eckert/tty-new-helper-function-tty_get_mget/20230213-223413 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing patch link: https://lore.kernel.org/r/20230213140638.620206-2-fe%40dev.tdt.de patch subject: [PATCH 1/2] tty: new helper function tty_get_mget config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230214/202302140320.YmmWP6V8-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/096ca9c9428ec2a8ebab4af0798461e66585cdde git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Florian-Eckert/tty-new-helper-function-tty_get_mget/20230213-223413 git checkout 096ca9c9428ec2a8ebab4af0798461e66585cdde # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/leds/trigger/ drivers/tty/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302140320.YmmWP6V8-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/tty/tty_io.c:76: include/linux/tty.h:423:17: error: expected ';', ',' or ')' before 'struct' 423 | struct serial_icounter_struct *icount); | ^~~~~~ >> drivers/tty/tty_io.c:2589:5: warning: no previous prototype for 'tty_get_icount' [-Wmissing-prototypes] 2589 | int tty_get_icount(struct tty_struct *tty, | ^~~~~~~~~~~~~~ vim +/tty_get_icount +2589 drivers/tty/tty_io.c ^1da177e4c3f41 drivers/char/tty_io.c Linus Torvalds 2005-04-16 2579 d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2580 /** d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2581 * tty_get_icount - get tty statistics d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2582 * @tty: tty device d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2583 * @icount: output parameter d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2584 * 796a75a98762f1 drivers/tty/tty_io.c Jiri Slaby 2021-11-26 2585 * Gets a copy of the @tty's icount statistics. d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2586 * d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2587 * Locking: none (up to the driver) d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2588 */ d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 @2589 int tty_get_icount(struct tty_struct *tty, d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2590 struct serial_icounter_struct *icount) d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2591 { d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2592 memset(icount, 0, sizeof(*icount)); d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2593 d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2594 if (tty->ops->get_icount) d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2595 return tty->ops->get_icount(tty, icount); d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2596 else 1b8b20868a6d64 drivers/tty/tty_io.c Johan Hovold 2021-04-07 2597 return -ENOTTY; d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2598 } d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2599 EXPORT_SYMBOL_GPL(tty_get_icount); d20c219c731784 drivers/tty/tty_io.c Uwe Kleine-König 2020-12-18 2600 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests