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r8169: fix DMA issue on MIPS platform 

As reported by Aaro this patch causes network problems on
MIPS Loongson platform. Therefore revert it.

Fixes: f072218cca ("r8169: remove not needed call to dma_sync_single_for_device")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2019-08-23 20:07:26 +02:00 committed by David S. Miller
parent bd1200b795
commit d4ed7463d0
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/realtek/r8169_main.c
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@ -5822,6 +5822,10 @@ process_pkt:
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);