Re: [PATCH] amdgpu: add a filter condition when set brightness

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

Hi Yuanzhi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on linus/master v6.2 next-20230227]
[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/Yuanzhi-Wang/amdgpu-add-a-filter-condition-when-set-brightness/20230227-154108
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230227073953.326-1-wangyuanzhi%40uniontech.com
patch subject: [PATCH] amdgpu: add a filter condition when set brightness
config: loongarch-randconfig-r036-20230226 (https://download.01.org/0day-ci/archive/20230227/202302272122.p3DfX4S8-lkp@intel.com/config)
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/intel-lab-lkp/linux/commit/95d9579e31d0b601aa1422cf767ca5138d3efcee
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yuanzhi-Wang/amdgpu-add-a-filter-condition-when-set-brightness/20230227-154108
        git checkout 95d9579e31d0b601aa1422cf767ca5138d3efcee
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/gpu/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302272122.p3DfX4S8-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: In function 'amdgpu_atif_handler':
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:50: warning: missing terminating " character
     449 |                                         DRM_WARN("old brightness %d is greater than ACPI brightness
         |                                                  ^
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:450:53: warning: missing terminating " character
     450 |                                                 %d\n", old_brightness, req.backlight_level);
         |                                                     ^
>> cc1: error: unterminated argument list invoking macro "DRM_WARN"
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: error: 'DRM_WARN' undeclared (first use in this function)
     449 |                                         DRM_WARN("old brightness %d is greater than ACPI brightness
         |                                         ^~~~~~~~
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:49: error: expected ';' at end of input
     449 |                                         DRM_WARN("old brightness %d is greater than ACPI brightness
         |                                                 ^
         |                                                 ;
   ......
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:448:33: note: '-Wmisleading-indentation' is disabled from this point onwards, since column-tracking was disabled due to the size of the code/headers
     448 |                                 if (old_brightness > req.backlight_level)
         |                                 ^~
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:448:33: note: adding '-flarge-source-files' will allow for more column-tracking support, at the expense of compilation time and memory
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: error: expected declaration or statement at end of input
     449 |                                         DRM_WARN("old brightness %d is greater than ACPI brightness
         |                                         ^~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: error: expected declaration or statement at end of input
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: error: expected declaration or statement at end of input
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:449:41: error: expected declaration or statement at end of input
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: At top level:
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:404:12: warning: 'amdgpu_atif_handler' defined but not used [-Wunused-function]
     404 | static int amdgpu_atif_handler(struct amdgpu_device *adev,
         |            ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:308:12: warning: 'amdgpu_atif_query_backlight_caps' defined but not used [-Wunused-function]
     308 | static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:240:12: warning: 'amdgpu_atif_get_notification_params' defined but not used [-Wunused-function]
     240 | static int amdgpu_atif_get_notification_params(struct amdgpu_atif *atif)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:195:12: warning: 'amdgpu_atif_verify_interface' defined but not used [-Wunused-function]
     195 | static int amdgpu_atif_verify_interface(struct amdgpu_atif *atif)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:36,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:64,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:35:
   drivers/gpu/drm/amd/amdgpu/../display/dc/dc_hdmi_types.h:53:22: warning: 'dp_hdmi_dongle_signature_str' defined but not used [-Wunused-const-variable=]
      53 | static const uint8_t dp_hdmi_dongle_signature_str[] = "DP-HDMI ADAPTOR";
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

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