[PATCH] net: stmmac: Fix RX Coalesce IOC always true issue

[Biao Huang]

Currently rx_count_frames in stmmac_rx_refill always 0, which leads to
use_rx_wd false, and IOC bit of rx_desc3 true forever. Fix it.

Fixes: 6fa9d691b91ac ("net: stmmac: Prevent divide-by-zero")
Signed-off-by: Biao Huang <biao.hu...@mediatek.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c 
b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index e6898fd5223f..87b529743fd0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3607,8 +3607,7 @@ static inline void stmmac_rx_refill(struct stmmac_priv 
*priv, u32 queue)
                stmmac_refill_desc3(priv, rx_q, p);
 
                rx_q->rx_count_frames++;
-               rx_q->rx_count_frames += priv->rx_coal_frames;
-               if (rx_q->rx_count_frames > priv->rx_coal_frames)
+               if (rx_q->rx_count_frames >= priv->rx_coal_frames)
                        rx_q->rx_count_frames = 0;
 
                use_rx_wd = !priv->rx_coal_frames;
-- 
2.18.0