Patch "IB/mlx5: Fix entries checks in mlx5_ib_create_cq" has been added to the 4.4-stable tree

Patch "IB/mlx5: Fix entries checks in mlx5_ib_create_cq" 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: Fix entries checks in mlx5_ib_create_cq

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-fix-entries-checks-in-mlx5_ib_create_cq.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 9ea578528656e191c1097798a771ff08bab6f323 Mon Sep 17 00:00:00 2001
From: Noa Osherovich <noaos@mellanox.com>
Date: Sat, 4 Jun 2016 15:15:34 +0300
Subject: IB/mlx5: Fix entries checks in mlx5_ib_create_cq

From: Noa Osherovich <noaos@mellanox.com>

commit 9ea578528656e191c1097798a771ff08bab6f323 upstream.

Number of entries shouldn't be greater than the device's max
capability. This should be checked before rounding the entries number
to power of two.

Fixes: 51ee86a4af639 ('IB/mlx5: Fix check of number of entries...')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/infiniband/hw/mlx5/cq.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -763,7 +763,8 @@ struct ib_cq *mlx5_ib_create_cq(struct i
 	if (attr->flags)
 		return ERR_PTR(-EINVAL);
 
-	if (entries < 0)
+	if (entries < 0 ||
+	    (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))))
 		return ERR_PTR(-EINVAL);
 
 	entries = roundup_pow_of_two(entries + 1);


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

queue-4.4/ib-mlx5-fix-returned-values-of-query-qp.patch
queue-4.4/ib-mlx5-return-port_err-in-active-to-initializing-tranisition.patch
queue-4.4/ib-mlx5-fix-entries-checks-in-mlx5_ib_create_cq.patch
queue-4.4/ib-mlx5-fix-entries-check-in-mlx5_ib_resize_cq.patch
queue-4.4/ib-mlx5-check-blueflame-hca-support.patch