drm/i915/execlists: Drop unused parameter to lookup_priolist()

lookup_priolist() no longer attaches the request into the priolist, it
just returns the priolist for the given priority instead. Drop the
unused parameter.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180508003046.2633-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/intel_lrc.c

@@ -258,9 +258,7 @@ intel_lr_context_descriptor_update(struct i915_gem_context *ctx,
 }
 
 static struct i915_priolist *
-lookup_priolist(struct intel_engine_cs *engine,
-		struct i915_sched_node *node,
-		int prio)
+lookup_priolist(struct intel_engine_cs *engine, int prio)
 {
 	struct intel_engine_execlists * const execlists = &engine->execlists;
 	struct i915_priolist *p;
@@ -345,7 +343,7 @@ static void __unwind_incomplete_requests(struct intel_engine_cs *engine)
 		GEM_BUG_ON(rq_prio(rq) == I915_PRIORITY_INVALID);
 		if (rq_prio(rq) != last_prio) {
 			last_prio = rq_prio(rq);
-			p = lookup_priolist(engine, &rq->sched, last_prio);
+			p = lookup_priolist(engine, last_prio);
 		}
 
 		list_add(&rq->sched.link, &p->requests);
@@ -1145,7 +1143,7 @@ static void queue_request(struct intel_engine_cs *engine,
 			  int prio)
 {
 	list_add_tail(&node->link,
-		      &lookup_priolist(engine, node, prio)->requests);
+		      &lookup_priolist(engine, prio)->requests);
 }
 
 static void __submit_queue(struct intel_engine_cs *engine, int prio)