Re: [PATCH 10/11] serial: make uart_console_write->putchar()'s character a char

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Hi Jiri,

I love your patch! Yet something to improve:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on v5.17-rc1 next-20220124]
[cannot apply to shawnguo/for-next davem-sparc/master]
[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]

url:    https://github.com/0day-ci/linux/commits/Jiri-Slaby/TTY-patches-for-5-18/20220124-151758
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: arc-randconfig-r043-20220124 (https://download.01.org/0day-ci/archive/20220125/202201250004.SHBbOjs3-lkp@xxxxxxxxx/config)
compiler: arc-elf-gcc (GCC) 11.2.0
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/0day-ci/linux/commit/45520d4f6db241db0b77f41162adba4a9977956c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jiri-Slaby/TTY-patches-for-5-18/20220124-151758
        git checkout 45520d4f6db241db0b77f41162adba4a9977956c
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash drivers/tty/serial/

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

All errors (new ones prefixed by >>):

   drivers/tty/serial/omap-serial.c: In function 'serial_omap_console_write':
>> drivers/tty/serial/omap-serial.c:1272:49: error: passing argument 4 of 'uart_console_write' from incompatible pointer type [-Werror=incompatible-pointer-types]
    1272 |         uart_console_write(&up->port, s, count, serial_omap_console_putchar);
         |                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                                                 |
         |                                                 void (*)(struct uart_port *, int)
   In file included from drivers/tty/serial/omap-serial.c:30:
   include/linux/serial_core.h:402:32: note: expected 'void (*)(struct uart_port *, char)' but argument is of type 'void (*)(struct uart_port *, int)'
     402 |                         void (*putchar)(struct uart_port *, char));
         |                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/uart_console_write +1272 drivers/tty/serial/omap-serial.c

b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1248  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1249  static void
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1250  serial_omap_console_write(struct console *co, const char *s,
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1251  		unsigned int count)
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1252  {
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1253  	struct uart_omap_port *up = serial_omap_console_ports[co->index];
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1254  	unsigned long flags;
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1255  	unsigned int ier;
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1256  	int locked = 1;
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1257  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1258  	local_irq_save(flags);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1259  	if (up->port.sysrq)
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1260  		locked = 0;
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1261  	else if (oops_in_progress)
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1262  		locked = spin_trylock(&up->port.lock);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1263  	else
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1264  		spin_lock(&up->port.lock);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1265  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1266  	/*
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1267  	 * First save the IER then disable the interrupts
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1268  	 */
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1269  	ier = serial_in(up, UART_IER);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1270  	serial_out(up, UART_IER, 0);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1271  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27 @1272  	uart_console_write(&up->port, s, count, serial_omap_console_putchar);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1273  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1274  	/*
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1275  	 * Finally, wait for transmitter to become empty
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1276  	 * and restore the IER
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1277  	 */
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1278  	wait_for_xmitr(up);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1279  	serial_out(up, UART_IER, ier);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1280  	/*
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1281  	 * The receive handling will happen properly because the
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1282  	 * receive ready bit will still be set; it is not cleared
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1283  	 * on read.  However, modem control will not, we must
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1284  	 * call it if we have saved something in the saved flags
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1285  	 * while processing with interrupts off.
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1286  	 */
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1287  	if (up->msr_saved_flags)
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1288  		check_modem_status(up);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1289  
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1290  	if (locked)
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1291  		spin_unlock(&up->port.lock);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1292  	local_irq_restore(flags);
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1293  }
b612633b592807 drivers/serial/omap-serial.c Govindraj.R 2010-09-27  1294  

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



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