Re: [LINUX PATCHv3 6/9] serial-uartlite: Change logic how console_port is setup

From: kbuild test robot
Date: Tue Oct 16 2018 - 10:10:45 EST


Hi Shubhrajyoti,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on next-20181016]
[cannot apply to v4.19-rc8]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/shubhrajyoti-datta-gmail-com/serial-uartlite-Add-support-for-dynamic-allocation/20181016-210709
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: i386-randconfig-x019-201841 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

Note: the linux-review/shubhrajyoti-datta-gmail-com/serial-uartlite-Add-support-for-dynamic-allocation/20181016-210709 HEAD 7aba44c5f67836025decfe4dc4ab364c1f83f44d builds fine.
It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

In file included from include/linux/ioport.h:13:0,
from include/linux/device.h:15,
from include/linux/platform_device.h:14,
from drivers/tty//serial/uartlite.c:9:
drivers/tty//serial/uartlite.c: In function 'ulite_assign':
>> drivers/tty//serial/uartlite.c:684:25: error: invalid type argument of '->' (have 'struct uart_driver')
!(ulite_uart_driver->cons->flags & CON_ENABLED))
^
include/linux/compiler.h:58:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/tty//serial/uartlite.c:683:2: note: in expansion of macro 'if'
if (console_port == port &&
^~
>> drivers/tty//serial/uartlite.c:684:25: error: invalid type argument of '->' (have 'struct uart_driver')
!(ulite_uart_driver->cons->flags & CON_ENABLED))
^
include/linux/compiler.h:58:42: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/tty//serial/uartlite.c:683:2: note: in expansion of macro 'if'
if (console_port == port &&
^~
>> drivers/tty//serial/uartlite.c:684:25: error: invalid type argument of '->' (have 'struct uart_driver')
!(ulite_uart_driver->cons->flags & CON_ENABLED))
^
include/linux/compiler.h:69:16: note: in definition of macro '__trace_if'
______r = !!(cond); \
^~~~
>> drivers/tty//serial/uartlite.c:683:2: note: in expansion of macro 'if'
if (console_port == port &&
^~

vim +684 drivers/tty//serial/uartlite.c

671
672 /* Register the port */
673 rc = uart_add_one_port(&ulite_uart_driver, port);
674 if (rc) {
675 dev_err(dev, "uart_add_one_port() failed; err=%i\n", rc);
676 port->mapbase = 0;
677 dev_set_drvdata(dev, NULL);
678 return rc;
679 }
680
681 #ifdef CONFIG_SERIAL_UARTLITE_CONSOLE
682 /* This is not port which is used for console that's why clean it up */
> 683 if (console_port == port &&
> 684 !(ulite_uart_driver->cons->flags & CON_ENABLED))
685 console_port = NULL;
686 #endif
687
688 return 0;
689 }
690

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