Re: [PATCH v6 2/3] serial: port: Add support of PNP IRQ to __uart_read_properties()

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

Hi Guanbing,

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 v6.9-rc3 next-20240409]
[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/Guanbing-Huang/PNP-Add-dev_is_pnp-macro/20240409-154558
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
patch link:    https://lore.kernel.org/r/e6dc33e399f119e6430bca48223cb2127930939b.1712646750.git.albanhuang%40tencent.com
patch subject: [PATCH v6 2/3] serial: port: Add support of PNP IRQ to __uart_read_properties()
config: sparc-allnoconfig (https://download.01.org/0day-ci/archive/20240410/202404100548.rbAa11Xr-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240410/202404100548.rbAa11Xr-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/202404100548.rbAa11Xr-lkp@intel.com/

All errors (new ones prefixed by >>):

   sparc-linux-ld: drivers/tty/serial/serial_port.o: in function `__uart_read_properties':
   serial_port.c:(.text+0x1c4): undefined reference to `pnp_bus_type'
>> sparc-linux-ld: serial_port.c:(.text+0x1c8): undefined reference to `pnp_bus_type'

-- 
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