RDMA/hns: Eliminate compilation alarms in arch x86

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Add type cast to eliminiate compilation alarms. Use "virt_to_page" and
"page_to_pfn" which supported by X86 platform instead of
unsupported interface "virt_to_pfn".

Feature or Bugfix:Bugfix
Signed-off-by: NYangyang Li <liyangyang20@huawei.com>
Reviewed-by: Nchenglang <chenglang@huawei.com>
Reviewed-by: Noulijun <oulijun@huawei.com>
Reviewed-by: Nliweihang <liweihang@hisilicon.com>
Reviewed-by: Nliuyixian <liuyixian@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2536,7 +2536,7 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
 	hns_roce_free_link_table(hr_dev, &priv->tsq);
 
 err_tsq_init_failed:
-	free_page(hr_dev->reset_page);
+	free_page((unsigned long)hr_dev->reset_page);
 
 	return ret;
 }
@@ -2550,7 +2550,7 @@ static void hns_roce_v2_exit(struct hns_roce_dev *hr_dev)
 
 	hns_roce_free_link_table(hr_dev, &priv->tpq);
 	hns_roce_free_link_table(hr_dev, &priv->tsq);
-	free_page(hr_dev->reset_page);
+	free_page((unsigned long)hr_dev->reset_page);
 }
 
 static int hns_roce_query_mbox_status(struct hns_roce_dev *hr_dev)

drivers/infiniband/hw/hns/hns_roce_main.c

@@ -660,7 +660,7 @@ static int hns_roce_mmap(struct ib_ucontext *context,
 
 		if (hr_dev->reset_page)
 			if (remap_pfn_range(vma, vma->vm_start,
-					       virt_to_pfn(hr_dev->reset_page),
+				  page_to_pfn(virt_to_page(hr_dev->reset_page)),
 				  PAGE_SIZE, vma->vm_page_prot)) {
 				dev_err(hr_dev->dev,
 					"mmap reset page failed.\n");