linux-kernel - [agd5f:drm-next 353/388] drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2720:6: warning: no previous prototype for 'dc_reset

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Date:   Wed, 6 Jul 2022 16:20:41 +0800
From:   kernel test robot <lkp@...el.com>
To:     Rodrigo Siqueira <Rodrigo.Siqueira@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>
Subject: [agd5f:drm-next 353/388]
 drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2720:6: warning: no
 previous prototype for 'dc_reset_state'

tree:   https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head:   fc25fd602b1e101a45650475a8d2f00d7bb8e971
commit: 97ca308925a50aa80711ccfaf814fa3898374862 [353/388] drm/amd/display: Add minimal pipe split transition state
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220706/202207061638.WngLaW9T-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
        git fetch --no-tags agd5f drm-next
        git checkout 97ca308925a50aa80711ccfaf814fa3898374862
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2720:6: warning: no previous prototype for 'dc_reset_state' [-Wmissing-prototypes]
    2720 | void dc_reset_state(struct dc *dc, struct dc_state *context)
         |      ^~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:33:
   drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:137:22: warning: 'SYNAPTICS_DEVICE_ID' defined but not used [-Wunused-const-variable=]
     137 | static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
         |                      ^~~~~~~~~~~~~~~~~~~
   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, 0};
         |                      ^~~~~~~~~~~~~~~~~~~~~~~
   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, 0};
         |                      ^~~~~~~~~~~~~~~~~~~~~~~


vim +/dc_reset_state +2720 drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c

  2719	
> 2720	void dc_reset_state(struct dc *dc, struct dc_state *context)
  2721	{
  2722		dc_resource_state_destruct(context);
  2723	
  2724		/* clear the structure, but don't reset the reference count */
  2725		memset(context, 0, offsetof(struct dc_state, refcount));
  2726	
  2727		init_state(dc, context);
  2728	}
  2729	

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