tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel head: ed6825d02a9a25b15a7c5bfd73a0b2dc2f559c26 commit: 8fbfacb554953e655090ca5822d5af473e866bd6 [101/117] TTY: move hw_stopped to tty_port config: riscv-randconfig-r016-20210407 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commit/?id=8fbfacb554953e655090ca5822d5af473e866bd6 git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git git fetch --no-tags jirislaby devel git checkout 8fbfacb554953e655090ca5822d5af473e866bd6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/tty/mxser.c: In function 'mxser_flush_chars': >> drivers/tty/mxser.c:1015:8: error: 'struct tty_struct' has no member named 'hw_stopped' 1015 | (tty->hw_stopped && info->type != PORT_16550A && | ^~ >> drivers/tty/mxser.c:1016:17: error: 'struct mxser_board' has no member named 'chip_flag' 1016 | !info->board->chip_flag)) | ^~ vim +1015 drivers/tty/mxser.c ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1008 ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1009 1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 1010 static void mxser_flush_chars(struct tty_struct *tty) 1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 1011 { 1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 1012 struct mxser_port *info = tty->driver_data; ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1013 5d269128b6fdb6 drivers/tty/mxser.c Jiri Slaby 2021-03-30 1014 if (!info->xmit_cnt || tty->flow.stopped || !info->port.xmit_buf || ace7dd96695769 drivers/char/mxser.c Jiri Slaby 2008-07-25 @1015 (tty->hw_stopped && info->type != PORT_16550A && 8fbfacb554953e drivers/tty/mxser.c Jiri Slaby 2013-02-11 @1016 !info->board->chip_flag)) 1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 1017 return; ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1018 17f9f096e4c636 drivers/tty/mxser.c Jiri Slaby 2021-03-30 1019 mxser_start_tx(info); ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1020 } ^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 1021 :::::: The code at line 1015 was first introduced by commit :::::: ace7dd96695769f9d76980c7e52139e73228221c Char: mxser, various cleanups :::::: TO: Jiri Slaby :::::: CC: Linus Torvalds --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org