From f9bfea992e7d7557c40a58e8536ad8c6f177de25 Mon Sep 17 00:00:00 2001 From: Guy Levi Date: Thu, 17 Aug 2017 15:50:49 +0300 Subject: [PATCH] IB/mlx4: Check that reserved fields in mlx4_ib_create_qp_rss are zero According to mlx4 convention, need to fail the command due to a non-zero value in the user data which is expected to be zero. Fixes: 3078f5f1bd8b ("IB/mlx4: Add support for RSS QP") Signed-off-by: Guy Levi Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx4/qp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index c3958fcfed75..1ac148ddb250 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -812,6 +812,9 @@ static struct ib_qp *_mlx4_ib_create_qp_rss(struct ib_pd *pd, return ERR_PTR(-EFAULT); } + if (memchr_inv(ucmd.reserved, 0, sizeof(ucmd.reserved))) + return ERR_PTR(-EOPNOTSUPP); + if (ucmd.comp_mask || ucmd.reserved1) return ERR_PTR(-EOPNOTSUPP); -- GitLab