From: Jason Gunthorpe <jgg@mellanox.com>
Date: Tue, 20 Mar 2018 13:59:50 -0600
Subject: RDMA/cxgb3: Use structs to describe the uABI instead of opencoding
Patch-mainline: v4.17-rc1
Git-commit: 761fc376c999df9febaa491bffae2f6722f423ff
References: bsc#1103992 FATE#326009

Open coding a loose value is not acceptable for describing the uABI in
RDMA. Provide the missing struct.

Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/cxgb3/iwch_provider.c |    4 +++-
 include/uapi/rdma/cxgb3-abi.h               |    5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -440,7 +440,9 @@ static struct ib_pd *iwch_allocate_pd(st
 	php->pdid = pdid;
 	php->rhp = rhp;
 	if (context) {
-		if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
+		struct iwch_alloc_pd_resp resp = {.pdid = php->pdid};
+
+		if (ib_copy_to_udata(udata, &resp, sizeof(resp))) {
 			iwch_deallocate_pd(&php->ibpd);
 			return ERR_PTR(-EFAULT);
 		}
--- a/include/uapi/rdma/cxgb3-abi.h
+++ b/include/uapi/rdma/cxgb3-abi.h
@@ -73,4 +73,9 @@ struct iwch_create_qp_resp {
 struct iwch_reg_user_mr_resp {
 	__u32 pbl_addr;
 };
+
+struct iwch_alloc_pd_resp {
+	__u32 pdid;
+};
+
 #endif /* CXGB3_ABI_USER_H */