From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Wed, 18 Jul 2018 09:25:16 -0700
Subject: IB/core: Allow ULPs to specify NULL as the third
 ib_post_(send|recv|srq_recv)() argument
Patch-mainline: v4.19-rc1
Git-commit: bb039a870c0593a4deaa72c2693d02a87723305c
References: bsc#1103992 FATE#326009

This patch does not change the behavior of the modified functions.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/rdma/ib_verbs.h |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3280,7 +3280,9 @@ static inline int ib_post_srq_recv(struc
 				   struct ib_recv_wr *recv_wr,
 				   struct ib_recv_wr **bad_recv_wr)
 {
-	return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr);
+	struct ib_recv_wr *dummy;
+
+	return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr ? : &dummy);
 }
 
 /**
@@ -3381,7 +3383,9 @@ static inline int ib_post_send(struct ib
 			       struct ib_send_wr *send_wr,
 			       struct ib_send_wr **bad_send_wr)
 {
-	return qp->device->post_send(qp, send_wr, bad_send_wr);
+	struct ib_send_wr *dummy;
+
+	return qp->device->post_send(qp, send_wr, bad_send_wr ? : &dummy);
 }
 
 /**
@@ -3396,7 +3400,9 @@ static inline int ib_post_recv(struct ib
 			       struct ib_recv_wr *recv_wr,
 			       struct ib_recv_wr **bad_recv_wr)
 {
-	return qp->device->post_recv(qp, recv_wr, bad_recv_wr);
+	struct ib_recv_wr *dummy;
+
+	return qp->device->post_recv(qp, recv_wr, bad_recv_wr ? : &dummy);
 }
 
 struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private,