drm/i915: Remove the confusing global waiting/irq seqno

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 580244c..74f5525 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1984,7 +1984,7 @@
 
 		trace_i915_gem_request_wait_begin(dev, seqno);
 
-		ring->waiting_gem_seqno = seqno;
+		ring->waiting_seqno = seqno;
 		ring->user_irq_get(ring);
 		if (interruptible)
 			ret = wait_event_interruptible(ring->irq_queue,
@@ -1996,7 +1996,7 @@
 				|| atomic_read(&dev_priv->mm.wedged));
 
 		ring->user_irq_put(ring);
-		ring->waiting_gem_seqno = 0;
+		ring->waiting_seqno = 0;
 
 		trace_i915_gem_request_wait_end(dev, seqno);
 	}