ABACI reported the following bug by code static scanning: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_dccg.c:257:6: warning: no previous prototype for ‘dccg32_otg_drop_pixel’. drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_dccg.c:248:6: warning: no previous prototype for ‘dccg32_otg_add_pixel’. drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_dccg.c:211:6: warning: no previous prototype for ‘dccg32_set_dpstreamclk’. drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_dccg.c:136:6: warning: no previous prototype for ‘dccg32_set_dtbclk_dto’. In the following kernel version: [+]kernel: http://kernel.source.codeaurora.cn/pub/scm/linux/kernel/git/next/linux-next.git [+]branch: next-20220914 [+]commit: 0caac1da994900d12a9be6106edb8e98696712a3
submitted to upstream: https://lore.kernel.org/all/CADnq5_NmWKF+7UQov2oQ2JH5UW0Pzjw0bCUzhZWZQ=xH2mu17g@mail.gmail.com/