[PATCH net-next v2 2/3] net: ipvlan: add net device refcount tracker
From: Ziyang Xuan <hidden>
Date: 2022-03-18 01:41:37
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add net device refcount tracker to ipvlan. Signed-off-by: Ziyang Xuan <redacted> --- drivers/net/ipvlan/ipvlan.h | 1 + drivers/net/ipvlan/ipvlan_main.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
index 3837c897832e..6605199305b7 100644
--- a/drivers/net/ipvlan/ipvlan.h
+++ b/drivers/net/ipvlan/ipvlan.h@@ -64,6 +64,7 @@ struct ipvl_dev { struct list_head pnode; struct ipvl_port *port; struct net_device *phy_dev; + netdevice_tracker dev_tracker; struct list_head addrs; struct ipvl_pcpu_stats __percpu *pcpu_stats; DECLARE_BITMAP(mac_filters, IPVLAN_MAC_FILTER_SIZE);
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index dcdc01403f22..be06f122092e 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c@@ -160,7 +160,7 @@ static int ipvlan_init(struct net_device *dev) port->count += 1; /* Get ipvlan's reference to phy_dev */ - dev_hold(phy_dev); + dev_hold_track(phy_dev, &ipvlan->dev_tracker, GFP_KERNEL); return 0; }
@@ -674,7 +674,7 @@ static void ipvlan_dev_free(struct net_device *dev) struct ipvl_dev *ipvlan = netdev_priv(dev); /* Get rid of the ipvlan's reference to phy_dev */ - dev_put(ipvlan->phy_dev); + dev_put_track(ipvlan->phy_dev, &ipvlan->dev_tracker); } void ipvlan_link_setup(struct net_device *dev)
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2.25.1