From: Parav Pandit <parav@mellanox.com>
Date: Sun, 1 Apr 2018 13:51:28 -0500
Subject: IB/qedr: Remove GID add/del dummy routines
Patch-mainline: v4.17-rc1
Git-commit: ca486a3b338ea0858104bab80d86475de3575966
References: bsc#1104376 FATE#325886

qedr driver's add_gid() and del_gid() callbacks are doing simple
checks which are already done by the ib core before invoking these
callback routines.

Therefore, code is simplified to skip implementing add_gid() and
del_gid() callback functions.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/qedr/main.c  |    3 ---
 drivers/infiniband/hw/qedr/verbs.c |   31 -------------------------------
 drivers/infiniband/hw/qedr/verbs.h |    5 -----
 3 files changed, 39 deletions(-)

--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -164,9 +164,6 @@ static void qedr_roce_register_device(st
 	dev->ibdev.node_type = RDMA_NODE_IB_CA;
 	dev->ibdev.query_gid = qedr_query_gid;
 
-	dev->ibdev.add_gid = qedr_add_gid;
-	dev->ibdev.del_gid = qedr_del_gid;
-
 	dev->ibdev.get_port_immutable = qedr_roce_port_immutable;
 }
 
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -105,37 +105,6 @@ int qedr_query_gid(struct ib_device *ibd
 	return rc;
 }
 
-int qedr_add_gid(struct ib_device *device, u8 port_num,
-		 unsigned int index, const union ib_gid *gid,
-		 const struct ib_gid_attr *attr, void **context)
-{
-	if (!rdma_cap_roce_gid_table(device, port_num))
-		return -EINVAL;
-
-	if (port_num > QEDR_MAX_PORT)
-		return -EINVAL;
-
-	if (!context)
-		return -EINVAL;
-
-	return 0;
-}
-
-int qedr_del_gid(struct ib_device *device, u8 port_num,
-		 unsigned int index, void **context)
-{
-	if (!rdma_cap_roce_gid_table(device, port_num))
-		return -EINVAL;
-
-	if (port_num > QEDR_MAX_PORT)
-		return -EINVAL;
-
-	if (!context)
-		return -EINVAL;
-
-	return 0;
-}
-
 int qedr_query_device(struct ib_device *ibdev,
 		      struct ib_device_attr *attr, struct ib_udata *udata)
 {
--- a/drivers/infiniband/hw/qedr/verbs.h
+++ b/drivers/infiniband/hw/qedr/verbs.h
@@ -48,11 +48,6 @@ struct ib_ucontext *qedr_alloc_ucontext(
 int qedr_dealloc_ucontext(struct ib_ucontext *);
 
 int qedr_mmap(struct ib_ucontext *, struct vm_area_struct *vma);
-int qedr_del_gid(struct ib_device *device, u8 port_num,
-		 unsigned int index, void **context);
-int qedr_add_gid(struct ib_device *device, u8 port_num,
-		 unsigned int index, const union ib_gid *gid,
-		 const struct ib_gid_attr *attr, void **context);
 struct ib_pd *qedr_alloc_pd(struct ib_device *,
 			    struct ib_ucontext *, struct ib_udata *);
 int qedr_dealloc_pd(struct ib_pd *pd);