Thread (8 messages) 8 messages, 1 author, 2021-08-03
STALE1780d LANDED
Revisions (3)
  1. v1 [diff vs current]
  2. v1 [diff vs current]
  3. v2 current

[PATCH rdma-next v2 3/7] RDMA/core: Remove protection from wrong in-kernel API usage

From: Leon Romanovsky <leon@kernel.org>
Date: 2021-08-03 18:20:58
Also in: lkml
Subsystem: infiniband subsystem, the rest · Maintainers: Jason Gunthorpe, Leon Romanovsky, Linus Torvalds

From: Leon Romanovsky <leonro@nvidia.com>

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.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/core/verbs.c | 10 ----------
 1 file changed, 10 deletions(-)
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 635642a3ecbc..2090f3c9f689 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1219,16 +1219,6 @@ struct ib_qp *ib_create_named_qp(struct ib_pd *pd,
 	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.
-- 
2.31.1
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