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Date: Fri, 8 May 2020 14:31:09 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Majd Dibbiny <majd@...lanox.com>, Saeed Mahameed <saeedm@...lanox.com>, "David S. Miller" <davem@...emloft.net> Subject: [PATCH 4.4 078/312] net/mlx5: Fix masking of reserved bits in XRCD number From: Majd Dibbiny <majd@...lanox.com> commit 9cd3411c42c5d5ba55d6e745edfe7df53c1ffa41 upstream. 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@...lanox.com> Signed-off-by: Saeed Mahameed <saeedm@...lanox.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/ethernet/mellanox/mlx5/core/qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/qp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/qp.c @@ -393,7 +393,7 @@ int mlx5_core_xrcd_alloc(struct mlx5_cor 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; }
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