drm/i915: Remove unused ring->irq_seqno

Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NBen Widawsky <ben@bwidawsk.net>
Signed-Off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_debugfs.c

@@ -414,8 +414,6 @@ static void i915_ring_seqno_info(struct seq_file *m,
 	if (ring->get_seqno) {
 		seq_printf(m, "Current sequence (%s): %d\n",
 			   ring->name, ring->get_seqno(ring));
-		seq_printf(m, "IRQ sequence (%s):     %d\n",
-			   ring->name, ring->irq_seqno);
 	}
 }
 

drivers/gpu/drm/i915/i915_irq.c

@@ -331,15 +331,12 @@ static void notify_ring(struct drm_device *dev,
 			struct intel_ring_buffer *ring)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 seqno;
 
 	if (ring->obj == NULL)
 		return;
 
-	seqno = ring->get_seqno(ring);
-	trace_i915_gem_request_complete(ring, seqno);
+	trace_i915_gem_request_complete(ring, ring->get_seqno(ring));
 
-	ring->irq_seqno = seqno;
 	wake_up_all(&ring->irq_queue);
 	if (i915_enable_hangcheck) {
 		dev_priv->hangcheck_count = 0;

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -58,7 +58,6 @@ struct  intel_ring_buffer {
 
 	u32		irq_refcount;		/* protected by dev_priv->irq_lock */
 	u32		irq_enable_mask;	/* bitmask to enable ring interrupt */
-	u32		irq_seqno;		/* last seq seem at irq time */
 	u32		trace_irq_seqno;
 	u32		sync_seqno[I915_NUM_RINGS-1];
 	bool __must_check (*irq_get)(struct intel_ring_buffer *ring);