diff --git a/rdma/dev.c b/rdma/dev.c
index 9fadf3ac..03ab8683 100644
--- a/rdma/dev.c
+++ b/rdma/dev.c
@@ -241,33 +241,7 @@ static int dev_one_show(struct rd *rd)
 
 static int dev_show(struct rd *rd)
 {
-	struct dev_map *dev_map;
-	int ret = 0;
-
-	if (rd->json_output)
-		jsonw_start_array(rd->jw);
-	if (rd_no_arg(rd)) {
-		list_for_each_entry(dev_map, &rd->dev_map_list, list) {
-			rd->dev_idx = dev_map->idx;
-			ret = dev_one_show(rd);
-			if (ret)
-				goto out;
-		}
-	} else {
-		dev_map = dev_map_lookup(rd, false);
-		if (!dev_map) {
-			pr_err("Wrong device name\n");
-			ret = -ENOENT;
-			goto out;
-		}
-		rd_arg_inc(rd);
-		rd->dev_idx = dev_map->idx;
-		ret = dev_one_show(rd);
-	}
-out:
-	if (rd->json_output)
-		jsonw_end_array(rd->jw);
-	return ret;
+	return rd_exec_dev(rd, dev_one_show);
 }
 
 int cmd_dev(struct rd *rd)
diff --git a/rdma/rdma.h b/rdma/rdma.h
index c07493c9..b85e3748 100644
--- a/rdma/rdma.h
+++ b/rdma/rdma.h
@@ -72,6 +72,7 @@ uint32_t get_port_from_argv(struct rd *rd);
 int cmd_dev(struct rd *rd);
 int cmd_link(struct rd *rd);
 int rd_exec_cmd(struct rd *rd, const struct rd_cmd *c, const char *str);
+int rd_exec_dev(struct rd *rd, int (*cb)(struct rd *rd));
 
 /*
  * Device manipulation
diff --git a/rdma/utils.c b/rdma/utils.c
index bb29fa1a..5c0f021a 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -159,6 +159,37 @@ void rd_free_devmap(struct rd *rd)
 	dev_map_cleanup(rd);
 }
 
+int rd_exec_dev(struct rd *rd, int (*cb)(struct rd *rd))
+{
+	struct dev_map *dev_map;
+	int ret = 0;
+
+	if (rd->json_output)
+		jsonw_start_array(rd->jw);
+	if (rd_no_arg(rd)) {
+		list_for_each_entry(dev_map, &rd->dev_map_list, list) {
+			rd->dev_idx = dev_map->idx;
+			ret = cb(rd);
+			if (ret)
+				goto out;
+		}
+	} else {
+		dev_map = dev_map_lookup(rd, false);
+		if (!dev_map) {
+			pr_err("Wrong device name\n");
+			ret = -ENOENT;
+			goto out;
+		}
+		rd_arg_inc(rd);
+		rd->dev_idx = dev_map->idx;
+		ret = cb(rd);
+	}
+out:
+	if (rd->json_output)
+		jsonw_end_array(rd->jw);
+	return ret;
+}
+
 int rd_exec_cmd(struct rd *rd, const struct rd_cmd *cmds, const char *str)
 {
 	const struct rd_cmd *c;