LinuxKPI: add KPI for netdev_notifier_info returning ifp
While currently the ifp gets cast to a net_device and then returned and consumers are expecting an ifp again, allow parallel usage now and in the future by extending and also passing the ifp directly back in the netdev_notifier_info. Add a function to return the ifp instead of the net_device. Sponsored by: The FreeBSD Foundation MFC after: 10 days Suggested by: hselasky Reviewed by: hselasky Differential Revision: https://reviews.freebsd.org/D30522
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@ -59,6 +59,7 @@
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/* According to linux::ipoib_main.c. */
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struct netdev_notifier_info {
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struct net_device *dev;
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struct ifnet *ifp;
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};
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static inline struct net_device *
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@ -67,6 +68,12 @@ netdev_notifier_info_to_dev(struct netdev_notifier_info *ni)
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return (ni->dev);
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}
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static inline struct ifnet *
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netdev_notifier_info_to_ifp(struct netdev_notifier_info *ni)
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{
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return (ni->ifp);
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}
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int register_netdevice_notifier(struct notifier_block *);
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int register_inetaddr_notifier(struct notifier_block *);
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int unregister_netdevice_notifier(struct notifier_block *);
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@ -2315,6 +2315,7 @@ linux_handle_ifnet_link_event(void *arg, struct ifnet *ifp, int linkstate)
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struct netdev_notifier_info ni;
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nb = arg;
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ni.ifp = ifp;
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ni.dev = (struct net_device *)ifp;
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if (linkstate == LINK_STATE_UP)
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nb->notifier_call(nb, NETDEV_UP, &ni);
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@ -2329,6 +2330,7 @@ linux_handle_ifnet_arrival_event(void *arg, struct ifnet *ifp)
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struct netdev_notifier_info ni;
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nb = arg;
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ni.ifp = ifp;
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ni.dev = (struct net_device *)ifp;
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nb->notifier_call(nb, NETDEV_REGISTER, &ni);
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}
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@ -2340,6 +2342,7 @@ linux_handle_ifnet_departure_event(void *arg, struct ifnet *ifp)
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struct netdev_notifier_info ni;
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nb = arg;
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ni.ifp = ifp;
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ni.dev = (struct net_device *)ifp;
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nb->notifier_call(nb, NETDEV_UNREGISTER, &ni);
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}
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@ -2351,6 +2354,7 @@ linux_handle_iflladdr_event(void *arg, struct ifnet *ifp)
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struct netdev_notifier_info ni;
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nb = arg;
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ni.ifp = ifp;
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ni.dev = (struct net_device *)ifp;
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nb->notifier_call(nb, NETDEV_CHANGEADDR, &ni);
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}
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@ -2362,6 +2366,7 @@ linux_handle_ifaddr_event(void *arg, struct ifnet *ifp)
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struct netdev_notifier_info ni;
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nb = arg;
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ni.ifp = ifp;
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ni.dev = (struct net_device *)ifp;
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nb->notifier_call(nb, NETDEV_CHANGEIFADDR, &ni);
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}
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