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Subject[jirislaby:devel 8/19] drivers/tty/mxser.c:1784:30: warning: unused variable 'mxser_ops'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel
head: e07aaf938405b723f435206c00fcc50a11a70399
commit: f22cec00dbd414f61389ec805a29e70e55b9d84a [8/19] mxser: switch to uart_driver
config: i386-buildonly-randconfig-r002-20211208 (https://download.01.org/0day-ci/archive/20211208/202112082345.v46Z3TI4-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a)
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=f22cec00dbd414f61389ec805a29e70e55b9d84a
git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git
git fetch --no-tags jirislaby devel
git checkout f22cec00dbd414f61389ec805a29e70e55b9d84a
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/tty/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

drivers/tty/mxser.c:377:13: warning: unused function 'mxser_must_no_sw_flow_control' [-Wunused-function]
static void mxser_must_no_sw_flow_control(unsigned long baseio)
^
drivers/tty/mxser.c:591:13: warning: unused function 'mxser_change_speed' [-Wunused-function]
static void mxser_change_speed(struct tty_struct *tty,
^
drivers/tty/mxser.c:1394:13: warning: unused function 'mxser_start' [-Wunused-function]
static void mxser_start(struct tty_struct *tty)
^
>> drivers/tty/mxser.c:1784:30: warning: unused variable 'mxser_ops' [-Wunused-const-variable]
static const struct uart_ops mxser_ops = {
^
4 warnings generated.


vim +/mxser_ops +1784 drivers/tty/mxser.c

1783
> 1784 static const struct uart_ops mxser_ops = {
1785 .tx_empty = mxser_tx_empty,
1786 //.get_mctrl = mxser_get_mctrl,
1787 //.set_mctrl = mxser_set_mctrl,
1788 .stop_tx = mxser_stop_tx,
1789 .start_tx = mxser_start_tx,
1790 .stop_rx = mxser_stop_rx,
1791 .break_ctl = mxser_break_ctl,
1792 //.startup = mxser_startup,
1793 //.shutdown = mxser_shutdown,
1794 .set_termios = mxser_set_termios,
1795 //.pm = mxser_pm,
1796 //.type = mxser_type,
1797 //.release_port = mxser_release_port,
1798 //.request_port = mxser_request_port,
1799 //.config_port = mxser_config_port,
1800 //.verify_port = mxser_verify_port,
1801 };
1802
1803

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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