From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 3 Aug 2021 21:20:34 +0300
Subject: RDMA/core: Remove protection from wrong in-kernel API usage
Patch-mainline: v5.15-rc1
Git-commit: 20e2bcc4c2a8ede2fe6e335b9eea357bcfbe79bb
References: jsc#SLE-19249

The ib_create_named_qp() is kernel verb that is not used for user supplied
attributes. In such case, it is ULP responsibility to provide valid QP
attributes.

In-kernel API shouldn't check it, exactly like other functions that don't
check device capabilities.

Link: https://lore.kernel.org/r/b9b9e981d1af148b750750196e686199dbbf61f8.1628014762.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/verbs.c |   10 ----------
 1 file changed, 10 deletions(-)

--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1219,16 +1219,6 @@ struct ib_qp *ib_create_named_qp(struct
 	struct ib_qp *qp;
 	int ret;
 
-	if (qp_init_attr->rwq_ind_tbl &&
-	    (qp_init_attr->recv_cq ||
-	    qp_init_attr->srq || qp_init_attr->cap.max_recv_wr ||
-	    qp_init_attr->cap.max_recv_sge))
-		return ERR_PTR(-EINVAL);
-
-	if ((qp_init_attr->create_flags & IB_QP_CREATE_INTEGRITY_EN) &&
-	    !(device->attrs.device_cap_flags & IB_DEVICE_INTEGRITY_HANDOVER))
-		return ERR_PTR(-EINVAL);
-
 	/*
 	 * If the callers is using the RDMA API calculate the resources
 	 * needed for the RDMA READ/WRITE operations.