[added to the 4.1 stable tree] IB/srpt: Disable RDMA access by the initiator

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From: Bart Van Assche <bart.vanassche@xxxxxxx>

This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit bec40c26041de61162f7be9d2ce548c756ce0f65 ]

With the SRP protocol all RDMA operations are initiated by the target.
Since no RDMA operations are initiated by the initiator, do not grant
the initiator permission to submit RDMA reads or writes to the target.

Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 416cd07ab87a..6c30192dcb78 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -958,8 +958,7 @@ static int srpt_init_ch_qp(struct srpt_rdma_ch *ch, struct ib_qp *qp)
 		return -ENOMEM;
 
 	attr->qp_state = IB_QPS_INIT;
-	attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ |
-	    IB_ACCESS_REMOTE_WRITE;
+	attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE;
 	attr->port_num = ch->sport->port;
 	attr->pkey_index = 0;
 
-- 
2.14.1




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