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hyperv/hn: Add comment about ether_ifattach event subscription.

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MFC after:	3 days
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D11710
This commit is contained in:
sephe 2017-08-01 02:55:43 +00:00
parent f1555b6b44
commit 571da5685c
1 changed files with 6 additions and 0 deletions
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6
sys/dev/hyperv/netvsc/if_hn.c
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@ -1541,6 +1541,12 @@ hn_attach(device_t dev)
sc->hn_ifaddr_evthand = EVENTHANDLER_REGISTER(ifaddr_event,
hn_ifaddr_event, sc, EVENTHANDLER_PRI_ANY);
/*
* NOTE:
* Subscribe ether_ifattach event, instead of ifnet_arrival event,
* since interface's LLADDR is needed; interface LLADDR is not
* available when ifnet_arrival event is triggered.
*/
sc->hn_ifnet_atthand = EVENTHANDLER_REGISTER(ether_ifattach_event,
hn_ifnet_attevent, sc, EVENTHANDLER_PRI_ANY);
sc->hn_ifnet_dethand = EVENTHANDLER_REGISTER(ifnet_departure_event,