/usr/src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c: In function 'cz_smu_check_finished':
/usr/src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c:252:6: error: this statement may fall through [-Werror=implicit-fallthrough=]
   if (adev->smu.fw_flags & AMDGPU_CPPFP_UCODE_LOADED)
      ^
/usr/src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c:254:2: note: here
  case AMDGPU_UCODE_ID_CP_ME:
  ^~~~
cc1: all warnings being treated as errors

Index: sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c
===================================================================
RCS file: /cvsroot/src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c,v
retrieving revision 1.1
diff -u -r1.1 amdgpu_cz_smc.c
--- sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c	27 Aug 2018 14:10:14 -0000	1.1
+++ sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_cz_smc.c	23 Feb 2019 11:07:10 -0000
@@ -251,6 +251,7 @@
 	case AMDGPU_UCODE_ID_CP_PFP:
 		if (adev->smu.fw_flags & AMDGPU_CPPFP_UCODE_LOADED)
 			return 0;
+		break;
 	case AMDGPU_UCODE_ID_CP_ME:
 		if (adev->smu.fw_flags & AMDGPU_CPME_UCODE_LOADED)
 			return 0;