drm/i915: Tidy common test_bit probing of i915_request->fence.flags

A repeated pattern is to test the signaled bit of our
request->fence.flags. Make this an inline to shorten a few lines and
remove unnecessary line continuations.

Signed-off-by: Chris Wilson <[e-mail]>
Reviewed-by: Tvrtko Ursulin <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/i915_irq.c

···
 			struct i915_request *waiter = wait->request;
 
 			if (waiter &&
-			    !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
-				      &waiter->fence.flags) &&
+			    !i915_request_signaled(waiter) &&
 			    intel_wait_check_request(wait, waiter))
 				rq = i915_request_get(waiter);
 

drivers/gpu/drm/i915/i915_request.c

···
 	spin_unlock(&engine->timeline.lock);
 
 	spin_lock(&rq->lock);
-	if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &rq->fence.flags))
+	if (!i915_request_signaled(rq))
 		dma_fence_signal_locked(&rq->fence);
 	if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &rq->fence.flags))
 		intel_engine_cancel_signaling(rq);

drivers/gpu/drm/i915/i915_request.h

···
 #define I915_WAIT_ALL		BIT(3) /* used by i915_gem_object_wait() */
 #define I915_WAIT_FOR_IDLE_BOOST BIT(4)
 
+static inline bool i915_request_signaled(const struct i915_request *rq)
+{
+	return test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &rq->fence.flags);
+}
+
 static inline bool intel_engine_has_started(struct intel_engine_cs *engine,
 					    u32 seqno);
 static inline bool intel_engine_has_completed(struct intel_engine_cs *engine,

drivers/gpu/drm/i915/intel_breadcrumbs.c

···
 				rq->signaling.wait.seqno = 0;
 				__list_del_entry(&rq->signaling.link);
 
-				if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
-					      &rq->fence.flags)) {
+				if (!i915_request_signaled(rq)) {
 					list_add_tail(&rq->signaling.link,
 						      &list);
 					i915_request_get(rq);

drivers/gpu/drm/i915/intel_lrc.c

···
 	list_for_each_entry(rq, &engine->timeline.requests, link) {
 		GEM_BUG_ON(!rq->global_seqno);
 
-		if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &rq->fence.flags))
+		if (i915_request_signaled(rq))
 			continue;
 
 		dma_fence_set_error(&rq->fence, -EIO);

drivers/gpu/drm/i915/intel_pm.c

···
 	if (!rps->enabled)
 		return;
 
-	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &rq->fence.flags))
+	if (i915_request_signaled(rq))
 		return;
 
 	/* Serializes with i915_request_retire() */

drivers/gpu/drm/i915/intel_ringbuffer.c

···
 	list_for_each_entry(request, &engine->timeline.requests, link) {
 		GEM_BUG_ON(!request->global_seqno);
 
-		if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
-			     &request->fence.flags))
+		if (i915_request_signaled(request))
 			continue;
 
 		dma_fence_set_error(&request->fence, -EIO);