[PATCH 6/7] neigh: Add device constructor/destructor capability.
DORMANTno replies
From: David Miller <hidden>
Date: 2011-07-25 10:01:38
Also in:
linux-rdma
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
If the neigh entry has device private state, it will need constructor/destructor ops. Signed-off-by: David S. Miller <redacted> --- include/linux/netdevice.h | 2 ++ net/core/neighbour.c | 15 ++++++++++++++- 2 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a50f6d6..016bb4e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h@@ -943,6 +943,8 @@ struct net_device_ops { u32 features); int (*ndo_set_features)(struct net_device *dev, u32 features); + int (*ndo_neigh_construct)(struct neighbour *n); + int (*ndo_neigh_destroy)(struct neighbour *n); }; /*
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 96ae4e4..ee5ce7e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c@@ -488,6 +488,14 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey, goto out_neigh_release; } + if (dev->netdev_ops->ndo_neigh_construct) { + error = dev->netdev_ops->ndo_neigh_construct(n); + if (error < 0) { + rc = ERR_PTR(error); + goto out_neigh_release; + } + } + /* Device specific setup. */ if (n->parms->neigh_setup && (error = n->parms->neigh_setup(n)) < 0) {
@@ -691,6 +699,8 @@ static inline void neigh_parms_put(struct neigh_parms *parms) */ void neigh_destroy(struct neighbour *neigh) { + struct net_device *dev = neigh->dev; + NEIGH_CACHE_STAT_INC(neigh->tbl, destroys); if (!neigh->dead) {
@@ -705,7 +715,10 @@ void neigh_destroy(struct neighbour *neigh) skb_queue_purge(&neigh->arp_queue); - dev_put(neigh->dev); + if (dev->netdev_ops->ndo_neigh_destroy) + dev->netdev_ops->ndo_neigh_destroy(neigh); + + dev_put(dev); neigh_parms_put(neigh->parms); NEIGH_PRINTK2("neigh %p is destroyed.\n", neigh);
--
1.7.6
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