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IB/cma: Destination and source addr families must match

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The destination address in a listening rdma_id does not have an address
family. Since address family in both sides of a connection must be the
same in rdma_bind_addr() we set the address family of the destination to
the address family of the source.

This patch serves the logic in cma_port_is_unique() which requires to
know if destination address that is associated with a rdma_id is any address
(cma_zero_addr() and cma_loopback_addr()).

This can happen when port reuse is checked for a port number
that is being listened to.

Fixes: 19b752a19d ("IB/cma: Allow port reuse for rdma_id")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moni Shoua 2017-02-14 07:24:08 +02:00 committed by Doug Ledford
parent 89052d784b
commit 6df6b4a9ce
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/core/cma.c
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@ -3297,6 +3297,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
{
struct rdma_id_private *id_priv;
int ret;
struct sockaddr *daddr;
if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&
addr->sa_family != AF_IB)
@ -3336,6 +3337,9 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
if (ret)
goto err2;
daddr = cma_dst_addr(id_priv);
daddr->sa_family = addr->sa_family;
return 0;
err2:
if (id_priv->cma_dev)