drm/i915/bdw+: Replace list_del+list_add_tail with list_move_tail

Same effect for slightly less source code and resulting binary.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452521321-4032-2-git-send-email-tvrtko.ursulin@linux.intel.com

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index f7fac5f..ab344e0 100644 (file)
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -431,9 +431,8 @@ static void execlists_context_unqueue(struct intel_engine_cs *ring)
                        /* Same ctx: ignore first request, as second request
                         * will update tail past first request's workload */
                        cursor->elsp_submitted = req0->elsp_submitted;
-                       list_del(&req0->execlist_link);
-                       list_add_tail(&req0->execlist_link,
-                               &ring->execlist_retired_req_list);
+                       list_move_tail(&req0->execlist_link,
+                                      &ring->execlist_retired_req_list);
                        req0 = cursor;
                } else {
                        req1 = cursor;
@@ -485,9 +484,8 @@ static bool execlists_check_remove_request(struct intel_engine_cs *ring,
                             "Never submitted head request\n");
 
                        if (--head_req->elsp_submitted <= 0) {
-                               list_del(&head_req->execlist_link);
-                               list_add_tail(&head_req->execlist_link,
-                                       &ring->execlist_retired_req_list);
+                               list_move_tail(&head_req->execlist_link,
+                                              &ring->execlist_retired_req_list);
                                return true;
                        }
                }
@@ -608,9 +606,8 @@ static int execlists_context_queue(struct drm_i915_gem_request *request)
                if (request->ctx == tail_req->ctx) {
                        WARN(tail_req->elsp_submitted != 0,
                                "More than 2 already-submitted reqs queued\n");
-                       list_del(&tail_req->execlist_link);
-                       list_add_tail(&tail_req->execlist_link,
-                               &ring->execlist_retired_req_list);
+                       list_move_tail(&tail_req->execlist_link,
+                                      &ring->execlist_retired_req_list);
                }
        }