Hi all,

After merging the drm-misc tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/gpu/drm/v3d/v3d_sched.c:263:1: error: return type is an incomplete type
  263 | v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: In function 'v3d_gpu_reset_for_timeout':
drivers/gpu/drm/v3d/v3d_sched.c:289:9: error: 'return' with a value, in function returning void [-Werror=return-type]
  289 |  return DRM_GPU_SCHED_STAT_NOMINAL;
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:263:1: note: declared here
  263 | v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: At top level:
drivers/gpu/drm/v3d/v3d_sched.c:298:1: error: return type is an incomplete type
  298 | v3d_cl_job_timedout(struct drm_sched_job *sched_job, enum v3d_queue q,
      | ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: In function 'v3d_cl_job_timedout':
drivers/gpu/drm/v3d/v3d_sched.c:309:10: error: 'return' with a value, in function returning void [-Werror=return-type]
  309 |   return DRM_GPU_SCHED_STAT_NOMINAL;
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:298:1: note: declared here
  298 | v3d_cl_job_timedout(struct drm_sched_job *sched_job, enum v3d_queue q,
      | ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: At top level:
drivers/gpu/drm/v3d/v3d_sched.c:316:1: error: return type is an incomplete type
  316 | v3d_bin_job_timedout(struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:325:1: error: return type is an incomplete type
  325 | v3d_render_job_timedout(struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:334:1: error: return type is an incomplete type
  334 | v3d_generic_job_timedout(struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:342:1: error: return type is an incomplete type
  342 | v3d_csd_job_timedout(struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: In function 'v3d_csd_job_timedout':
drivers/gpu/drm/v3d/v3d_sched.c:353:10: error: 'return' with a value, in function returning void [-Werror=return-type]
  353 |   return DRM_GPU_SCHED_STAT_NOMINAL;
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:342:1: note: declared here
  342 | v3d_csd_job_timedout(struct drm_sched_job *sched_job)
      | ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c: At top level:
drivers/gpu/drm/v3d/v3d_sched.c:362:18: error: initialization of 'enum drm_gpu_sched_stat (*)(struct drm_sched_job *)' from incompatible pointer type 'void (*)(struct drm_sched_job *)' [-Werror=incompatible-pointer-types]
  362 |  .timedout_job = v3d_bin_job_timedout,
      |                  ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:362:18: note: (near initialization for 'v3d_bin_sched_ops.timedout_job')
drivers/gpu/drm/v3d/v3d_sched.c:369:18: error: initialization of 'enum drm_gpu_sched_stat (*)(struct drm_sched_job *)' from incompatible pointer type 'void (*)(struct drm_sched_job *)' [-Werror=incompatible-pointer-types]
  369 |  .timedout_job = v3d_render_job_timedout,
      |                  ^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:369:18: note: (near initialization for 'v3d_render_sched_ops.timedout_job')
drivers/gpu/drm/v3d/v3d_sched.c:376:18: error: initialization of 'enum drm_gpu_sched_stat (*)(struct drm_sched_job *)' from incompatible pointer type 'void (*)(struct drm_sched_job *)' [-Werror=incompatible-pointer-types]
  376 |  .timedout_job = v3d_generic_job_timedout,
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:376:18: note: (near initialization for 'v3d_tfu_sched_ops.timedout_job')
drivers/gpu/drm/v3d/v3d_sched.c:383:18: error: initialization of 'enum drm_gpu_sched_stat (*)(struct drm_sched_job *)' from incompatible pointer type 'void (*)(struct drm_sched_job *)' [-Werror=incompatible-pointer-types]
  383 |  .timedout_job = v3d_csd_job_timedout,
      |                  ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:383:18: note: (near initialization for 'v3d_csd_sched_ops.timedout_job')
drivers/gpu/drm/v3d/v3d_sched.c:390:18: error: initialization of 'enum drm_gpu_sched_stat (*)(struct drm_sched_job *)' from incompatible pointer type 'void (*)(struct drm_sched_job *)' [-Werror=incompatible-pointer-types]
  390 |  .timedout_job = v3d_generic_job_timedout,
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/v3d/v3d_sched.c:390:18: note: (near initialization for 'v3d_cache_clean_sched_ops.timedout_job')

Caused by commit

  a6a1f036c74e ("drm/scheduler: Job timeout handler returns status (v3)")

I have used the drm-misc tree from next-20210129 for today.

-- 
Cheers,
Stephen Rothwell