Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=200d1713b47200aa478f27e454e3d957264d49be
Commit: 200d1713b47200aa478f27e454e3d957264d49be
Parent: 732a2170f499ce7cf5f0bdd4f9e0b0c8337b67e1
Author: Moni Shoua <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 9 19:43:37 2007 -0700
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Mon Oct 15 14:20:45 2007 -0400
IB/ipoib: Verify address handle validity on send
When the bonding device senses a carrier loss of its active slave it
replaces
that slave with a new one. In between the times when the carrier of an IPoIB
device goes down and ipoib_neigh is destroyed, it is possible that the
bonding driver will send a packet on a new slave that uses an old
ipoib_neigh.
This patch detects and prevents this from happenning.
Signed-off-by: Moni Shoua <monis at voltaire.com>
Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
Acked-by: Roland Dreier <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c
b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index cae026c..362610d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -692,9 +692,10 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct
net_device *dev)
goto out;
}
} else if (neigh->ah) {
- if (unlikely(memcmp(&neigh->dgid.raw,
+ if (unlikely((memcmp(&neigh->dgid.raw,
skb->dst->neighbour->ha + 4,
- sizeof(union ib_gid)))) {
+ sizeof(union ib_gid))) ||
+ (neigh->dev != dev))) {
spin_lock(&priv->lock);
/*
* It's safe to call ipoib_put_ah() inside
-
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