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Date: Fri, 18 Mar 2022 09:59:13 +0800 From: Ziyang Xuan <william.xuanziyang@...wei.com> To: <davem@...emloft.net>, <kuba@...nel.org>, <netdev@...r.kernel.org> CC: <edumazet@...gle.com>, <sakiwit@...il.com>, <sainath.grandhi@...el.com>, <maheshb@...gle.com>, <linux-kernel@...r.kernel.org> Subject: [PATCH net-next v2 2/3] net: ipvlan: add net device refcount tracker Add net device refcount tracker to ipvlan. Signed-off-by: Ziyang Xuan <william.xuanziyang@...wei.com> --- 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) -- 2.25.1
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