From 40efca7a46a04223e6792fbe23ba337f54cff794 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgg@mellanox.com>
Date: Sun, 25 Nov 2018 20:58:40 +0200
Subject: [PATCH] RDMA/uverbs: Fill in the response for
IB_USER_VERBS_EX_CMD_MODIFY_QP
A response struct was defined, and userspace is providing it (but not
checking it). Fill it in and write it out.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---
drivers/infiniband/core/uverbs_cmd.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 7f8b0a7dcb1735..c605412708b88d 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1953,6 +1953,9 @@ static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs,
struct ib_udata *ucore)
{
struct ib_uverbs_ex_modify_qp cmd;
+ struct ib_uverbs_ex_modify_qp_resp resp = {
+ .response_length = uverbs_response_length(attrs, sizeof(resp))
+ };
int ret;
ret = uverbs_request(attrs, &cmd, sizeof(cmd));
@@ -1969,7 +1972,11 @@ static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs,
~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1))
return -EOPNOTSUPP;
- return modify_qp(attrs, &cmd);
+ ret = modify_qp(attrs, &cmd);
+ if (ret)
+ return ret;
+
+ return uverbs_response(attrs, &resp, sizeof(resp));
}
static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs,
--
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