From 26e990badde40b2fb824bfa3cb9d4288a79584bc Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Sat, 3 Oct 2020 20:20:06 -0300 Subject: RDMA: Check attr_mask during modify_qp Each driver should check that it can support the provided attr_mask during modify_qp. IB_USER_VERBS_EX_CMD_MODIFY_QP was being used to block modify_qp_ex because the driver didn't check RATE_LIMIT. Link: https://lore.kernel.org/r/6-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.com Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mthca/mthca_qp.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/infiniband/hw/mthca') diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 08a2a7afafd3..07cfc0934b17 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -863,6 +863,9 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, enum ib_qp_state cur_state, new_state; int err = -EINVAL; + if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS) + return -EOPNOTSUPP; + mutex_lock(&qp->mutex); if (attr_mask & IB_QP_CUR_STATE) { cur_state = attr->cur_qp_state; -- cgit v1.2.3-59-g8ed1b