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 <jgg@nvidia.com>
diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c
index 1c469f9..947b8b1 100644
--- a/drivers/infiniband/sw/siw/siw_verbs.c
+++ b/drivers/infiniband/sw/siw/siw_verbs.c
@@ -544,6 +544,9 @@ int siw_verbs_modify_qp(struct ib_qp *base_qp, struct ib_qp_attr *attr,
if (!attr_mask)
return 0;
+ if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS)
+ return -EOPNOTSUPP;
+
memset(&new_attrs, 0, sizeof(new_attrs));
if (attr_mask & IB_QP_ACCESS_FLAGS) {