As reported by Aaro this patch causes network problems on
MIPS Loongson platform. Therefore revert it.
Fixes: f072218cca5b ("r8169: remove not needed call to
dma_sync_single_for_device")
Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
Reported-by: Aaro Koskinen <aaro.koski...@iki.fi>
---
drivers/net/ethernet/realtek/r8169_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c
b/drivers/net/ethernet/realtek/r8169_main.c
index 910944120..6182e7d33 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5822,6 +5822,10 @@ static int rtl_rx(struct net_device *dev, struct
rtl8169_private *tp, u32 budget
skb->tail += pkt_size;
skb->len = pkt_size;
+ dma_sync_single_for_device(tp_to_dev(tp),
+ le64_to_cpu(desc->addr),
+ pkt_size, DMA_FROM_DEVICE);
+
rtl8169_rx_csum(skb, status);
skb->protocol = eth_type_trans(skb, dev);
--
2.23.0
