Re: [PATCH] serial: core: Add support for dev_name:0.0 naming for kernel console

[kernel test robot <lkp@intel.com>]

Hi Tony,

kernel test robot noticed the following build errors:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on tty/tty-next tty/tty-linus usb/usb-testing usb/usb-next usb/usb-linus linus/master v6.5-rc2 next-20230719]
[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/Tony-Lindgren/serial-core-Add-support-for-dev_name-0-0-naming-for-kernel-console/20230719-131657
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
patch link:    https://lore.kernel.org/r/20230719051525.46494-1-tony%40atomide.com
patch subject: [PATCH] serial: core: Add support for dev_name:0.0 naming for kernel console
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230720/202307200137.Wk1s5BY7-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230720/202307200137.Wk1s5BY7-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307200137.Wk1s5BY7-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/tty/serial/serial_core.c: In function 'serial_core_add_preferred_console':
>> drivers/tty/serial/serial_core.c:3337:36: error: 'struct uart_port' has no member named 'port_id'
    3337 |                                port->port_id);
         |                                    ^~


vim +3337 drivers/tty/serial/serial_core.c

  3324	
  3325	/*
  3326	 * Add preferred console if configured on kernel command line with naming
  3327	 * "console=dev_name:0.0".
  3328	 */
  3329	static int serial_core_add_preferred_console(struct uart_driver *drv,
  3330						     struct uart_port *port)
  3331	{
  3332		char *port_match, *opt, *name;
  3333		int len, ret = 0;
  3334	
  3335		port_match = kasprintf(GFP_KERNEL, "console=%s:%i.%i",
  3336				       dev_name(port->dev), port->ctrl_id,
> 3337				       port->port_id);
  3338		if (!port_match)
  3339			return -ENOMEM;
  3340	
  3341		opt = strstr(saved_command_line, port_match);
  3342		if (!opt)
  3343			goto free_port_match;
  3344	
  3345		len = strlen(port_match);
  3346	
  3347		if (strlen(opt) > len + 1 && opt[len] == ',')
  3348			opt += len + 1;
  3349		else
  3350			opt = NULL;
  3351	
  3352		name = kstrdup(drv->dev_name, GFP_KERNEL);
  3353		if (!name) {
  3354			ret = -ENOMEM;
  3355			goto free_port_match;
  3356		}
  3357	
  3358		add_preferred_console(name, port->line, opt);
  3359	
  3360		kfree(name);
  3361	
  3362	free_port_match:
  3363		kfree(port_match);
  3364	
  3365		return ret;
  3366	}
  3367	

-- 
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https://github.com/intel/lkp-tests/wiki