Re: [PATCH 1/2] asus-wmi: Use led multicolor class for keyboard backlight

[kernel test robot]

Hi Abhijeet,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.17-rc3 next-20220211]
[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]

url:    https://github.com/0day-ci/linux/commits/Abhijeet-V/asus-wmi-Keyboard-rgb-led-multicolor-support/20220212-040427
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f1baf68e1383f6ed93eb9cff2866d46562607a43
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220213/202202130255.uwrbJQfB-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f6685f774697c85d6a352dcea013f46a99f9fe31)
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/0day-ci/linux/commit/860e9e7427b00b9dbd0c35851cecda00be1968f2
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Abhijeet-V/asus-wmi-Keyboard-rgb-led-multicolor-support/20220212-040427
        git checkout 860e9e7427b00b9dbd0c35851cecda00be1968f2
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/platform/x86/

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

All warnings (new ones prefixed by >>):

>> drivers/platform/x86/asus-wmi.c:958:5: warning: no previous prototype for function 'kbd_led_classdev_init' [-Wmissing-prototypes]
   int kbd_led_classdev_init(struct asus_wmi *asus, int brightness)
       ^
   drivers/platform/x86/asus-wmi.c:958:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int kbd_led_classdev_init(struct asus_wmi *asus, int brightness)
   ^
   static 
   1 warning generated.


vim +/kbd_led_classdev_init +958 drivers/platform/x86/asus-wmi.c

   957	
 > 958	int kbd_led_classdev_init(struct asus_wmi *asus, int brightness)
   959	{
   960		int rv;
   961	
   962		asus->kbd_led_wk = brightness;
   963		asus->kbd_led_mc.led_cdev.name = "asus::kbd_backlight";
   964		asus->kbd_led_mc.led_cdev.flags = LED_BRIGHT_HW_CHANGED;
   965		asus->kbd_led_mc.led_cdev.brightness_set = kbd_led_brightness_set;
   966		asus->kbd_led_mc.led_cdev.brightness_get = kbd_led_brightness_get;
   967		asus->kbd_led_mc.led_cdev.max_brightness = 3;
   968	
   969		asus->kbd_led_mc.num_colors = ASUS_KBD_SUBLED_COUNT;
   970	
   971		rv = led_classdev_multicolor_register(&asus->platform_device->dev,
   972						&asus->kbd_led_mc);
   973		return rv;
   974	}
   975	

---
0-DAY CI Kernel Test Service, Intel Corporation
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