core/trivial: add code comment for nm_manager_get_best_device_for_connection()

1 files changed, 5 insertions, 1 deletions

diff --git a/src/nm-manager.c b/src/nm-manager.c
index 6f7b456c77..1e0a0c44cc 100644
--- a/src/nm-manager.c
+++ b/src/nm-manager.c
@@ -3501,7 +3501,11 @@ found_better:
 		if (   prio <= best.prio
 		    && best.device) {
 			/* we already have a matching device with a better priority. This candidate
-			 * cannot be better. Skip the check. */
+			 * cannot be better. Skip the check.
+			 *
+			 * Also note, that below we collect the best error message @local_best.
+			 * Since we already have best.device, the error message does not matter
+			 * either, and we can skip nm_device_check_connection_available() altogether. */
 			continue;
 		}