mlx4_core: fix wrong comment about the reason of subtract one from the max_cqes

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>
(Ported from Mellanox OFED 2.4)

Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 481978f288a23acc6779348c34c0be5ec88b0910..35f455d53b640f04b43674c4f2aa667ae2431a44 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -447,8 +447,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
        dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
        /*
         * Subtract 1 from the limit because we need to allocate a
-        * spare CQE so the HCA HW can tell the difference between an
-        * empty CQ and a full CQ.
+        * spare CQE to enable resizing the CQ
         */
        dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
        dev->caps.reserved_cqs       = dev_cap->reserved_cqs;