From: Majd Dibbiny <majd@mellanox.com>
Date: Thu, 9 Jun 2016 21:07:29 +0000 (+0300)
Subject: net/mlx5: Fix masking of reserved bits in XRCD number
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9cd3411c42c5d5ba55d6e745edfe7df53c1ffa41;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

net/mlx5: Fix masking of reserved bits in XRCD number

Mask the reserved bits when reading the number of newly
created XRCD.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/qp.c b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
index b720a274220d..b82d65802d96 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
@@ -418,7 +418,7 @@ int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn)
 	if (out.hdr.status)
 		err = mlx5_cmd_status_to_err(&out.hdr);
 	else
-		*xrcdn = be32_to_cpu(out.xrcdn);
+		*xrcdn = be32_to_cpu(out.xrcdn) & 0xffffff;
 
 	return err;
 }