Patch "IB/mlx5: Assign send CQ and recv CQ of UMR QP" has been added to the 4.4-stable tree

Patch "IB/mlx5: Assign send CQ and recv CQ of UMR QP" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    IB/mlx5: Assign send CQ and recv CQ of UMR QP

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ib-mlx5-assign-send-cq-and-recv-cq-of-umr-qp.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Tue Dec 12 13:38:50 CET 2017
From: Majd Dibbiny <majd@mellanox.com>
Date: Mon, 30 Oct 2017 14:23:13 +0200
Subject: IB/mlx5: Assign send CQ and recv CQ of UMR QP

From: Majd Dibbiny <majd@mellanox.com>


[ Upstream commit 31fde034a8bd964a5c7c1a5663fc87a913158db2 ]

The UMR's QP is created by calling mlx5_ib_create_qp directly, and
therefore the send CQ and the recv CQ on the ibqp weren't assigned.

Assign them right after calling the mlx5_ib_create_qp to assure
that any access to those pointers will work as expected and won't
crash the system as might happen as part of reset flow.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/mlx5/main.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1123,6 +1123,8 @@ static int create_umr_res(struct mlx5_ib
 	qp->real_qp    = qp;
 	qp->uobject    = NULL;
 	qp->qp_type    = MLX5_IB_QPT_REG_UMR;
+	qp->send_cq    = init_attr->send_cq;
+	qp->recv_cq    = init_attr->recv_cq;
 
 	attr->qp_state = IB_QPS_INIT;
 	attr->port_num = 1;


Patches currently in stable-queue which might be from majd@mellanox.com are

queue-4.4/ib-mlx5-assign-send-cq-and-recv-cq-of-umr-qp.patch
queue-4.4/ib-mlx4-increase-maximal-message-size-under-ud-qp.patch