[linux-next:master 6415/11577] drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c:90:6: warning: no previous prototype for 'should_disable_otg'

[linux-next:master 6415/11577] drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c:90:6: warning: no previous prototype for 'should_disable_otg'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   20f513df926fac0594a3b65f79d856bd64251861
commit: 7cf5ceb30d4d527d763ae78c5405e3faca1fb8b1 [6415/11577] drm/amd/display: avoid disable otg when dig was disabled
config: arm64-buildonly-randconfig-r002-20230209 (https://download.01.org/0day-ci/archive/20230210/202302101311.HcpZnVFl-lkp@intel.com/config)
compiler: aarch64-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7cf5ceb30d4d527d763ae78c5405e3faca1fb8b1
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 7cf5ceb30d4d527d763ae78c5405e3faca1fb8b1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

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/202302101311.HcpZnVFl-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c:90:6: warning: no previous prototype for 'should_disable_otg' [-Wmissing-prototypes]
      90 | bool should_disable_otg(struct pipe_ctx *pipe)
         |      ^~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/resource.h:28,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/clk_mgr_internal.h:36,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c:29:
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:142:22: warning: 'SYNAPTICS_DEVICE_ID' defined but not used [-Wunused-const-variable=]
     142 | static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
         |                      ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:139:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_3' defined but not used [-Wunused-const-variable=]
     139 | static const uint8_t DP_VGA_LVDS_CONVERTER_ID_3[] = "dnomlA";
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:137:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_2' defined but not used [-Wunused-const-variable=]
     137 | static const uint8_t DP_VGA_LVDS_CONVERTER_ID_2[] = "sivarT";
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:134:17: warning: 'DP_SINK_BRANCH_DEV_NAME_7580' defined but not used [-Wunused-const-variable=]
     134 | static const u8 DP_SINK_BRANCH_DEV_NAME_7580[] = "7580\x80u";
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:132:22: warning: 'DP_SINK_DEVICE_STR_ID_2' defined but not used [-Wunused-const-variable=]
     132 | static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5};
         |                      ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:131:22: warning: 'DP_SINK_DEVICE_STR_ID_1' defined but not used [-Wunused-const-variable=]
     131 | static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3};
         |                      ^~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:36,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/dccg.h:29,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c:28:
   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";
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/should_disable_otg +90 drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c

    89	
  > 90	bool should_disable_otg(struct pipe_ctx *pipe)
    91	{
    92		bool ret = true;
    93	
    94		if (pipe->stream->link->link_enc && pipe->stream->link->link_enc->funcs->is_dig_enabled &&
    95				pipe->stream->link->link_enc->funcs->is_dig_enabled(pipe->stream->link->link_enc))
    96			ret = false;
    97		return ret;
    98	}
    99	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests