tree:   https://github.com/AsahiLinux/linux bits/090-spi-hid
head:   bd3ea9c827680dbc49e10be104d6bb78b0f5527c
commit: 44717a151a8637bd88bd2a41b5d8e05625e4626f [23/34] WIP: HID: transport: spi: add Apple SPI transport
config: loongarch-randconfig-r026-20221017
compiler: loongarch64-linux-gcc (GCC) 12.1.0
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/AsahiLinux/linux/commit/44717a151a8637bd88bd2a41b5d8e05625e4626f
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux bits/090-spi-hid
        git checkout 44717a151a8637bd88bd2a41b5d8e05625e4626f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/hid/spi-hid/

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

All warnings (new ones prefixed by >>):

>> drivers/hid/spi-hid/spi-hid-apple-core.c:259:22: warning: no previous prototype for 'spihid_get_data' [-Wmissing-prototypes]
     259 | struct spihid_apple *spihid_get_data(struct spihid_interface *idev)
         |                      ^~~~~~~~~~~~~~~
--
>> drivers/hid/spi-hid/spi-hid-apple-of.c:24:5: warning: no previous prototype for 'spihid_apple_of_power_on' [-Wmissing-prototypes]
      24 | int spihid_apple_of_power_on(struct spihid_apple_ops *ops)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hid/spi-hid/spi-hid-apple-of.c:40:5: warning: no previous prototype for 'spihid_apple_of_power_off' [-Wmissing-prototypes]
      40 | int spihid_apple_of_power_off(struct spihid_apple_ops *ops)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hid/spi-hid/spi-hid-apple-of.c:50:5: warning: no previous prototype for 'spihid_apple_of_enable_irq' [-Wmissing-prototypes]
      50 | int spihid_apple_of_enable_irq(struct spihid_apple_ops *ops)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hid/spi-hid/spi-hid-apple-of.c:59:5: warning: no previous prototype for 'spihid_apple_of_disable_irq' [-Wmissing-prototypes]
      59 | int spihid_apple_of_disable_irq(struct spihid_apple_ops *ops)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/spihid_get_data +259 drivers/hid/spi-hid/spi-hid-apple-core.c

   258	
 > 259	struct spihid_apple *spihid_get_data(struct spihid_interface *idev)
   260	{
   261		switch (idev->id) {
   262		case SPIHID_DEVICE_ID_KBD:
   263			return container_of(idev, struct spihid_apple, kbd);
   264		case SPIHID_DEVICE_ID_TP:
   265			return container_of(idev, struct spihid_apple, tp);
   266		default:
   267			return NULL;
   268		}
   269	}
   270	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp