net: hns: Fix for __udivdi3 compiler error

Lin Yun Sheng · davem330 · commit 967b2e2a76e3 · 2017-08-04T11:06:59.000-07:00
This patch fixes the __udivdi3 undefined error reported by test robot. Fixes: b8c17f7 ("net: hns: Add self-adaptive interrupt coalesce support in hns driver") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -847,7 +847,8 @@ static void hns_update_rx_rate(struct hnae_ring *ring)
 
 	total_bytes = ring->stats.rx_bytes - ring->coal_last_rx_bytes;
 	time_passed_ms = jiffies_to_msecs(jiffies - ring->coal_last_jiffies);
-	ring->coal_rx_rate = (total_bytes / time_passed_ms) >> 10;
+	do_div(total_bytes, time_passed_ms);
+	ring->coal_rx_rate = total_bytes >> 10;
 
 	ring->coal_last_rx_bytes = ring->stats.rx_bytes;
 	ring->coal_last_jiffies = jiffies;
