[PATCH for-next 1/2] RDMA/hns: Limit gmv_entry_num to avoid memory waste

The GMV entry is a HW object corresponding to a GID. Since gid_table_len
is already limited to a maximum of 256, there is no need to allocate
memory for those extra GMV entries as they will never be touched.

Fixes: 7243396aaf12 ("RDMA/hns: Add a max length of gid table")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 27cc7df55ee7..3edceadbca76 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2416,8 +2416,7 @@ static void apply_func_caps(struct hns_roce_dev *hr_dev)
 					 caps->gmv_bt_num *
 					 (HNS_HW_PAGE_SIZE / caps->gmv_entry_sz));
 
-		caps->gmv_entry_num = caps->gmv_bt_num * (HNS_HW_PAGE_SIZE /
-							  caps->gmv_entry_sz);
+		caps->gmv_entry_num = (u32)caps->gid_table_len[0];
 	} else {
 		u32 func_num = max_t(u32, 1, hr_dev->func_num);
 

-- 
2.33.0