iavf: enhance the duplicated FDIR list scan handling

When the FDIR entry is found, just return the result directly to break
the loop.
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/iavf/iavf_fdir.c

@@ -713,7 +713,6 @@ void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *f
 bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr)
 {
 	struct iavf_fdir_fltr *tmp;
-	bool ret = false;
 
 	list_for_each_entry(tmp, &adapter->fdir_list_head, list) {
 		if (tmp->flow_type != fltr->flow_type)
@@ -724,13 +723,11 @@ bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *
 		    !memcmp(&tmp->ip_data, &fltr->ip_data,
 			    sizeof(fltr->ip_data)) &&
 		    !memcmp(&tmp->ext_data, &fltr->ext_data,
-			    sizeof(fltr->ext_data))) {
-			ret = true;
-			break;
-		}
+			    sizeof(fltr->ext_data)))
+			return true;
 	}
 
-	return ret;
+	return false;
 }
 
 /**