From: Parav Pandit <parav@mellanox.com>
Date: Tue, 9 Jan 2018 15:58:56 +0200
Subject: RDMA/cma: Update cma_validate_port to honor net namespace
Patch-mainline: v4.16-rc1
Git-commit: 66c74d746db127152fadb33f75b2a8ffa4a02b27
References: bsc#1103992 FATE#326009

cma_validate_port uses rdma_dev_addr to validate the port of the cm_id.
It needs to honor the net namespace which is setup during cm_id creation
when finding netdevice.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/cma.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -628,7 +628,7 @@ static inline int cma_validate_port(stru
 		return ret;
 
 	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {
-		ndev = dev_get_by_index(&init_net, bound_if_index);
+		ndev = dev_get_by_index(dev_addr->net, bound_if_index);
 		if (!ndev)
 			return ret;
 	} else {