linux-kernel - [PATCH 2/2 net-next] ipvlan: Remove usage of the deprecated ida_simple

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Date: Fri,  5 Jan 2024 10:27:09 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: alexis.lothore@...tlin.com,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	netdev@...r.kernel.org
Subject: [PATCH 2/2 net-next] ipvlan: Remove usage of the deprecated ida_simple_xx() API

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

This is less verbose.

Note that the upper bound of ida_alloc_range() is inclusive while the one
of ida_simple_get() was exclusive. So calls have been updated accordingly.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/net/ipvlan/ipvlan_main.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index e080e4fc41e4..df7c43a109e1 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -605,11 +605,11 @@ int ipvlan_link_new(struct net *src_net, struct net_device *dev,
 	 * Assign IDs between 0x1 and 0xFFFE (used by the master) to each
 	 * slave link [see addrconf_ifid_eui48()].
 	 */
-	err = ida_simple_get(&port->ida, port->dev_id_start, 0xFFFE,
-			     GFP_KERNEL);
+	err = ida_alloc_range(&port->ida, port->dev_id_start, 0xFFFD,
+			      GFP_KERNEL);
 	if (err < 0)
-		err = ida_simple_get(&port->ida, 0x1, port->dev_id_start,
-				     GFP_KERNEL);
+		err = ida_alloc_range(&port->ida, 0x1, port->dev_id_start - 1,
+				      GFP_KERNEL);
 	if (err < 0)
 		goto unregister_netdev;
 	dev->dev_id = err;
@@ -641,7 +641,7 @@ int ipvlan_link_new(struct net *src_net, struct net_device *dev,
 unlink_netdev:
 	netdev_upper_dev_unlink(phy_dev, dev);
 remove_ida:
-	ida_simple_remove(&port->ida, dev->dev_id);
+	ida_free(&port->ida, dev->dev_id);
 unregister_netdev:
 	unregister_netdevice(dev);
 	return err;
@@ -661,7 +661,7 @@ void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
 	}
 	spin_unlock_bh(&ipvlan->addrs_lock);
 
-	ida_simple_remove(&ipvlan->port->ida, dev->dev_id);
+	ida_free(&ipvlan->port->ida, dev->dev_id);
 	list_del_rcu(&ipvlan->pnode);
 	unregister_netdevice_queue(dev, head);
 	netdev_upper_dev_unlink(ipvlan->phy_dev, dev);
-- 
2.34.1