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SubjectRe: [PATCH net-next v3 2/3] net: ipvlan: add net device refcount tracker
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On 3/19/22 02:53, Ziyang Xuan wrote:
> Add net device refcount tracker to ipvlan.


Just squash this to prior patch.


Ideally all new dev_hold()/dev_put() should be

dev_hold_track() and dev_put_track()


> Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.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)

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