Re: [PATCH v5 5/6] HID: add spi-hid, transport driver for HID over SPI bus

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Hi Jarrett,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hid/for-next]
[also build test WARNING on dtor-input/next robh/for-next linus/master v5.19-rc6 next-20220711]
[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/Jarrett-Schultz/Add-spi-hid-transport-for-HID-over-SPI-bus/20220708-010203
base:   https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220712/202207120839.Ga8kjAG8-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 77a38f6839980bfac61babb40d83772c51427011)
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/intel-lab-lkp/linux/commit/d0121c2f2d1bb21824555c34c233dd3fbc6aee96
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jarrett-Schultz/Add-spi-hid-transport-for-HID-over-SPI-bus/20220708-010203
        git checkout d0121c2f2d1bb21824555c34c233dd3fbc6aee96
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/hid/spi-hid/ drivers/md/ drivers/net/ethernet/marvell/prestera/ drivers/vfio/pci/mlx5/

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/hid/spi-hid/spi-hid-core.c:193:20: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
   static const char *const spi_hid_power_mode_string(u8 power_state)
                      ^~~~~~
>> drivers/hid/spi-hid/spi-hid-core.c:691:4: warning: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Wformat]
                           hid->vendor, hid->product);
                           ^~~~~~~~~~~
   drivers/hid/spi-hid/spi-hid-core.c:691:17: warning: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Wformat]
                           hid->vendor, hid->product);
                                        ^~~~~~~~~~~~
   drivers/hid/spi-hid/spi-hid-core.c:1318:13: error: incompatible function pointer types initializing 'void (*)(struct spi_device *)' with an expression of type 'int (struct spi_device *)' [-Werror,-Wincompatible-function-pointer-types]
           .remove         = spi_hid_remove,
                             ^~~~~~~~~~~~~~
   3 warnings and 1 error generated.
--
   In file included from drivers/hid/spi-hid/trace.c:9:
   In file included from drivers/hid/spi-hid/./spi-hid_trace.h:194:
   In file included from include/trace/define_trace.h:102:
   In file included from include/trace/trace_events.h:237:
>> drivers/hid/spi-hid/./spi-hid_trace.h:140:92: warning: more '%' conversions than data arguments [-Wformat-insufficient-args]
           TP_printk("spi%d.%d: (%04x:%04x v%d) HID v%d.%d state i:%d p:%d len i:%d o:%d r:%d flags %c",
                                                                                                    ~^
   include/trace/stages/stage3_trace_output.h:9:33: note: expanded from macro 'TP_printk'
   #define TP_printk(fmt, args...) fmt "\n", args
                                   ^~~
   include/trace/trace_events.h:203:27: note: expanded from macro 'DECLARE_EVENT_CLASS'
           trace_event_printf(iter, print);                                \
                                    ^~~~~
   1 warning generated.


vim +/const +193 drivers/hid/spi-hid/spi-hid-core.c

   192	
 > 193	static const char *const spi_hid_power_mode_string(u8 power_state)
   194	{
   195		switch (power_state) {
   196		case SPI_HID_POWER_MODE_ON:
   197			return "d0";
   198		case SPI_HID_POWER_MODE_SLEEP:
   199			return "d2";
   200		case SPI_HID_POWER_MODE_OFF:
   201			return "d3";
   202		case SPI_HID_POWER_MODE_WAKING_SLEEP:
   203			return "d3*";
   204		default:
   205			return "unknown";
   206		}
   207	}
   208	

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



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