RDMA: Use GID from the ib_gid_attr during the add_gid() callback

Now that ib_gid_attr contains the GID, make use of that in the add_gid()
callback functions for the provider drivers to simplify the add_gid()
implementations.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/hns/hns_roce_device.h

@@ -736,7 +736,7 @@ struct hns_roce_hw {
 			 u16 token, int event);
 	int (*chk_mbox)(struct hns_roce_dev *hr_dev, unsigned long timeout);
 	int (*set_gid)(struct hns_roce_dev *hr_dev, u8 port, int gid_index,
-		       union ib_gid *gid, const struct ib_gid_attr *attr);
+		       const union ib_gid *gid, const struct ib_gid_attr *attr);
 	int (*set_mac)(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr);
 	void (*set_mtu)(struct hns_roce_dev *hr_dev, u8 phy_port,
 			enum ib_mtu mtu);

drivers/infiniband/hw/hns/hns_roce_hw_v1.c

@@ -1728,7 +1728,7 @@ static int hns_roce_v1_chk_mbox(struct hns_roce_dev *hr_dev,
 }
 
 static int hns_roce_v1_set_gid(struct hns_roce_dev *hr_dev, u8 port,
-			       int gid_index, union ib_gid *gid,
+			       int gid_index, const union ib_gid *gid,
 			       const struct ib_gid_attr *attr)
 {
 	u32 *p = NULL;

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -1308,7 +1308,7 @@ static int hns_roce_v2_chk_mbox(struct hns_roce_dev *hr_dev,
 }
 
 static int hns_roce_v2_set_gid(struct hns_roce_dev *hr_dev, u8 port,
-			       int gid_index, union ib_gid *gid,
+			       int gid_index, const union ib_gid *gid,
 			       const struct ib_gid_attr *attr)
 {
 	enum hns_roce_sgid_type sgid_type = GID_TYPE_FLAG_ROCE_V1;

drivers/infiniband/hw/hns/hns_roce_main.c

@@ -74,8 +74,7 @@ static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u8 port, u8 *addr)
 	return hr_dev->hw->set_mac(hr_dev, phy_port, addr);
 }
 
-static int hns_roce_add_gid(const union ib_gid *gid,
-			    const struct ib_gid_attr *attr, void **context)
+static int hns_roce_add_gid(const struct ib_gid_attr *attr, void **context)
 {
 	struct hns_roce_dev *hr_dev = to_hr_dev(attr->device);
 	u8 port = attr->port_num - 1;
@@ -87,8 +86,7 @@ static int hns_roce_add_gid(const union ib_gid *gid,
 
 	spin_lock_irqsave(&hr_dev->iboe.lock, flags);
 
-	ret = hr_dev->hw->set_gid(hr_dev, port, attr->index,
-				  (union ib_gid *)gid, attr);
+	ret = hr_dev->hw->set_gid(hr_dev, port, attr->index, &attr->gid, attr);
 
 	spin_unlock_irqrestore(&hr_dev->iboe.lock, flags);