RDMA/hns: Remove redundant 'phy_addr' in hns_roce_hem_list_find_mtt()

This parameter has never been used. Remove it to simplify the function.

Link: https://lore.kernel.org/r/20220922123315.3732205-8-xuhaoyue1@hisilicon.comSigned-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/hns/hns_roce_hem.c

@@ -1462,19 +1462,17 @@ void hns_roce_hem_list_init(struct hns_roce_hem_list *hem_list)
 
 void *hns_roce_hem_list_find_mtt(struct hns_roce_dev *hr_dev,
 				 struct hns_roce_hem_list *hem_list,
-				 int offset, int *mtt_cnt, u64 *phy_addr)
+				 int offset, int *mtt_cnt)
 {
 	struct list_head *head = &hem_list->btm_bt;
 	struct hns_roce_hem_item *hem, *temp_hem;
 	void *cpu_base = NULL;
-	u64 phy_base = 0;
 	int nr = 0;
 
 	list_for_each_entry_safe(hem, temp_hem, head, sibling) {
 		if (hem_list_page_is_in_range(hem, offset)) {
 			nr = offset - hem->start;
 			cpu_base = hem->addr + nr * BA_BYTE_LEN;
-			phy_base = hem->dma_addr + nr * BA_BYTE_LEN;
 			nr = hem->end + 1 - offset;
 			break;
 		}
@@ -1483,8 +1481,5 @@ void *hns_roce_hem_list_find_mtt(struct hns_roce_dev *hr_dev,
 	if (mtt_cnt)
 		*mtt_cnt = nr;
 
-	if (phy_addr)
-		*phy_addr = phy_base;
-
 	return cpu_base;
 }

drivers/infiniband/hw/hns/hns_roce_hem.h

@@ -131,7 +131,7 @@ void hns_roce_hem_list_release(struct hns_roce_dev *hr_dev,
 			       struct hns_roce_hem_list *hem_list);
 void *hns_roce_hem_list_find_mtt(struct hns_roce_dev *hr_dev,
 				 struct hns_roce_hem_list *hem_list,
-				 int offset, int *mtt_cnt, u64 *phy_addr);
+				 int offset, int *mtt_cnt);
 
 static inline void hns_roce_hem_first(struct hns_roce_hem *hem,
 				      struct hns_roce_hem_iter *iter)

drivers/infiniband/hw/hns/hns_roce_mr.c

@@ -585,7 +585,7 @@ static int mtr_map_region(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
 	while (offset < end && npage < max_count) {
 		count = 0;
 		mtts = hns_roce_hem_list_find_mtt(hr_dev, &mtr->hem_list,
-						  offset, &count, NULL);
+						  offset, &count);
 		if (!mtts)
 			return -ENOBUFS;
 
@@ -834,7 +834,7 @@ int hns_roce_mtr_find(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
 		mtt_count = 0;
 		mtts = hns_roce_hem_list_find_mtt(hr_dev, &mtr->hem_list,
 						  start_index + total,
-						  &mtt_count, NULL);
+						  &mtt_count);
 		if (!mtts || !mtt_count)
 			goto done;