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RDMA/cma: Make sure that PSN is not over max allowed
authorMoni Shoua <monis@mellanox.com>
Sun, 26 Nov 2017 18:23:54 +0000 (20:23 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 25 Feb 2018 10:07:57 +0000 (11:07 +0100)
[ Upstream commit 23a9cd2ad90543e9da3786878d2b2729c095439d ]

This patch limits the initial value for PSN to 24 bits as
spec requires.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/infiniband/core/cma.c patch | blob | blame | history

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index c07d0451cd4ad894cc24cbbae9e5a461589af4b9..e457dface2d21f1b6da4f4c07af68e361c5f22c5 100644 (file)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -801,6 +801,7 @@ struct rdma_cm_id *rdma_create_id(struct net *net,
        INIT_LIST_HEAD(&id_priv->mc_list);
        get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);
        id_priv->id.route.addr.dev_addr.net = get_net(net);
+       id_priv->seq_num &= 0x00ffffff;
 
        return &id_priv->id;
 }