drm/i915: Remove two sloppy inline functions from .h

Get rid of sloppy inline functions now that we don't have more users:

i915_gem_request_get_seqno
i915_gem_request_get_engine

v2:
- request->engine is always non-NULL (Chris)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1478589108-3702-1-git-send-email-joonas.lahtinen@linux.intel.com

drivers/gpu/drm/i915/i915_debugfs.c

@@ -547,11 +547,11 @@ static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 					   pipe, plane);
 			}
 			if (work->flip_queued_req) {
-				struct intel_engine_cs *engine = i915_gem_request_get_engine(work->flip_queued_req);
+				struct intel_engine_cs *engine = work->flip_queued_req->engine;
 
 				seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
 					   engine->name,
-					   i915_gem_request_get_seqno(work->flip_queued_req),
+					   work->flip_queued_req->global_seqno,
 					   atomic_read(&dev_priv->gt.global_timeline.next_seqno),
 					   intel_engine_get_seqno(engine),
 					   i915_gem_request_completed(work->flip_queued_req));

drivers/gpu/drm/i915/i915_gem_request.h

@@ -162,18 +162,6 @@ int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
 				   struct drm_file *file);
 void i915_gem_request_retire_upto(struct drm_i915_gem_request *req);
 
-static inline u32
-i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
-{
-	return req ? req->global_seqno : 0;
-}
-
-static inline struct intel_engine_cs *
-i915_gem_request_get_engine(struct drm_i915_gem_request *req)
-{
-	return req ? req->engine : NULL;
-}
-
 static inline struct drm_i915_gem_request *
 to_request(struct dma_fence *fence)
 {

drivers/gpu/drm/i915/i915_gpu_error.c

@@ -861,16 +861,19 @@ out:
 static inline uint32_t
 __active_get_seqno(struct i915_gem_active *active)
 {
-	return i915_gem_request_get_seqno(__i915_gem_active_peek(active));
+	struct drm_i915_gem_request *request;
+
+	request = __i915_gem_active_peek(active);
+	return request ? request->global_seqno : 0;
 }
 
 static inline int
 __active_get_engine_id(struct i915_gem_active *active)
 {
-	struct intel_engine_cs *engine;
+	struct drm_i915_gem_request *request;
 
-	engine = i915_gem_request_get_engine(__i915_gem_active_peek(active));
-	return engine ? engine->id : -1;
+	request = __i915_gem_active_peek(active);
+	return request ? request->engine->id : -1;
 }
 
 static void capture_bo(struct drm_i915_error_buffer *err,