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Commit 6df6b4a9 authored by Moni Shoua's avatar Moni Shoua Committed by Doug Ledford
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IB/cma: Destination and source addr families must match 



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: 19b752a1 ("IB/cma: Allow port reuse for rdma_id")
Signed-off-by: default avatarMoni Shoua <monis@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 89052d78

drivers/infiniband/core/cma.c

+4 −0
Original line number Diff line number Diff line
@@ -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)