drm/i915: Inline ringbuffer_emit()

As the function has been reduced to a store plus increment, the body is
now smaller than the call so inline it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -735,14 +735,6 @@ void intel_ring_begin(struct drm_device *dev,
 	ring->space -= n;
 }
 
-void intel_ring_emit(struct drm_device *dev,
-		struct intel_ring_buffer *ring, unsigned int data)
-{
-	unsigned int *virt = ring->virtual_start + ring->tail;
-	*virt = data;
-	ring->tail += 4;
-}
-
 void intel_ring_advance(struct drm_device *dev,
 		struct intel_ring_buffer *ring)
 {

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -106,8 +106,16 @@ int intel_wrap_ring_buffer(struct drm_device *dev,
 		struct intel_ring_buffer *ring);
 void intel_ring_begin(struct drm_device *dev,
 		struct intel_ring_buffer *ring, int n);
-void intel_ring_emit(struct drm_device *dev,
-		struct intel_ring_buffer *ring, u32 data);
+
+static inline void intel_ring_emit(struct drm_device *dev,
+				   struct intel_ring_buffer *ring,
+				   unsigned int data)
+{
+	unsigned int *virt = ring->virtual_start + ring->tail;
+	*virt = data;
+	ring->tail += 4;
+}
+
 void intel_fill_struct(struct drm_device *dev,
 		struct intel_ring_buffer *ring,
 		void *data,