Re: [PATCH v3 6/6] Driver: VMBus: Add device tree support

[kernel test robot]

Hi Saurabh,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20230206]
[cannot apply to robh/for-next tip/timers/core brgl/gpio/for-next wsa/i2c/for-next linus/master v6.2-rc7 v6.2-rc6 v6.2-rc5 v6.2-rc7]
[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/Saurabh-Sengar/drivers-clocksource-hyper-v-non-ACPI-support-in-hyperv-clock/20230207-015625
patch link:    https://lore.kernel.org/r/1675706060-22361-7-git-send-email-ssengar%40linux.microsoft.com
patch subject: [PATCH v3 6/6] Driver: VMBus: Add device tree support
config: i386-randconfig-a014-20230206 (https://download.01.org/0day-ci/archive/20230207/202302071011.XjQOfXVK-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/121473f34bab66918912399f1cfe9e06a9ea0294
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Saurabh-Sengar/drivers-clocksource-hyper-v-non-ACPI-support-in-hyperv-clock/20230207-015625
        git checkout 121473f34bab66918912399f1cfe9e06a9ea0294
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/hv/

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

All warnings (new ones prefixed by >>):

   drivers/hv/vmbus_drv.c: In function 'vmbus_mmio_remove':
   drivers/hv/vmbus_drv.c:2285:1: error: no return statement in function returning non-void [-Werror=return-type]
    2285 | }
         | ^
   At top level:
>> drivers/hv/vmbus_drv.c:2691:34: warning: 'vmbus_of_match' defined but not used [-Wunused-const-variable=]
    2691 | static const struct of_device_id vmbus_of_match[] = {
         |                                  ^~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/vmbus_of_match +2691 drivers/hv/vmbus_drv.c

  2690	
> 2691	static const struct of_device_id vmbus_of_match[] = {
  2692		{
  2693			.compatible = "microsoft,vmbus",
  2694		},
  2695		{
  2696			/* sentinel */
  2697		},
  2698	};
  2699	MODULE_DEVICE_TABLE(of, vmbus_of_match);
  2700	

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