From 6df6b4a9ce43deb57d3e23b0e79a529464b5cf37 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Tue, 14 Feb 2017 07:24:08 +0200 Subject: [PATCH] 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: 19b752a19dce ("IB/cma: Allow port reuse for rdma_id") Signed-off-by: Moni Shoua Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/core/cma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index f98ec19..ba60e4b 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -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) -- 2.7.4