From: Jason Gunthorpe <jgg@mellanox.com>
Date: Wed, 8 Jan 2020 19:22:00 +0200
Subject: RDMA/core: Do not erase the type of ib_srq.uobject
Patch-mainline: v5.6-rc1
Git-commit: 9fbe334c6a67c3c09f187e4b9b0e6eaf0ad31429
References: jsc#SLE-8449

This is a struct ib_usrq_object pointer, instead of using container_of()
all over the place just store it with its actual type.

Link: https://lore.kernel.org/r/1578504126-9400-9-git-send-email-yishaih@mellanox.com
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/uverbs_cmd.c  |   17 +++++++++++------
 drivers/infiniband/core/uverbs_main.c |    3 +--
 include/rdma/ib_verbs.h               |    3 ++-
 3 files changed, 14 insertions(+), 9 deletions(-)

--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1492,7 +1492,8 @@ static int create_qp(struct uverbs_attr_
 		rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
 					UVERBS_LOOKUP_READ);
 	if (srq)
-		uobj_put_obj_read(srq);
+		rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
+					UVERBS_LOOKUP_READ);
 	if (ind_tbl)
 		uobj_put_obj_read(ind_tbl);
 
@@ -1513,7 +1514,8 @@ err_put:
 		rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
 					UVERBS_LOOKUP_READ);
 	if (srq)
-		uobj_put_obj_read(srq);
+		rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
+					UVERBS_LOOKUP_READ);
 	if (ind_tbl)
 		uobj_put_obj_read(ind_tbl);
 
@@ -2390,7 +2392,8 @@ static int ib_uverbs_post_srq_recv(struc
 	resp.bad_wr = 0;
 	ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr);
 
-	uobj_put_obj_read(srq);
+	rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
+				UVERBS_LOOKUP_READ);
 
 	if (ret)
 		for (next = wr; next; next = next->next) {
@@ -3458,7 +3461,7 @@ static int __uverbs_create_xsrq(struct u
 	srq->device        = pd->device;
 	srq->pd            = pd;
 	srq->srq_type	   = cmd->srq_type;
-	srq->uobject       = &obj->uevent.uobject;
+	srq->uobject       = obj;
 	srq->event_handler = attr.event_handler;
 	srq->srq_context   = attr.srq_context;
 
@@ -3584,7 +3587,8 @@ static int ib_uverbs_modify_srq(struct u
 	ret = srq->device->ops.modify_srq(srq, &attr, cmd.attr_mask,
 					  &attrs->driver_udata);
 
-	uobj_put_obj_read(srq);
+	rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
+				UVERBS_LOOKUP_READ);
 
 	return ret;
 }
@@ -3607,7 +3611,8 @@ static int ib_uverbs_query_srq(struct uv
 
 	ret = ib_query_srq(srq, &attr);
 
-	uobj_put_obj_read(srq);
+	rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
+				UVERBS_LOOKUP_READ);
 
 	if (ret)
 		return ret;
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -493,8 +493,7 @@ void ib_uverbs_srq_event_handler(struct
 {
 	struct ib_uevent_object *uobj;
 
-	uobj = container_of(event->element.srq->uobject,
-			    struct ib_uevent_object, uobject);
+	uobj = &event->element.srq->uobject->uevent;
 
 	ib_uverbs_async_handler(context_ptr, uobj->uobject.user_handle,
 				event->event, &uobj->event_list,
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -73,6 +73,7 @@
 
 struct ib_umem_odp;
 struct ib_uqp_object;
+struct ib_usrq_object;
 
 extern struct workqueue_struct *ib_wq;
 extern struct workqueue_struct *ib_comp_wq;
@@ -1575,7 +1576,7 @@ struct ib_cq {
 struct ib_srq {
 	struct ib_device       *device;
 	struct ib_pd	       *pd;
-	struct ib_uobject      *uobject;
+	struct ib_usrq_object  *uobject;
 	void		      (*event_handler)(struct ib_event *, void *);
 	void		       *srq_context;
 	enum ib_srq_type	srq_type;