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authorHeiner Kallweit <hkallweit1@gmail.com>2019-08-23 20:07:26 +0200
committerDavid S. Miller <davem@davemloft.net>2019-08-23 15:10:50 -0700
commitd4ed7463d02aef4b2270ec2a680813cd8b17def7 (patch)
tree98c637bfe27d1003aa3862788dfce5af445e4ad4
parentdrop_monitor: Make timestamps y2038 safe (diff)
downloadlinux-dev-d4ed7463d02aef4b2270ec2a680813cd8b17def7.tar.xz
linux-dev-d4ed7463d02aef4b2270ec2a680813cd8b17def7.zip
r8169: fix DMA issue on MIPS platform
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 <hkallweit1@gmail.com> Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/realtek/r8169_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 910944120a65..6182e7d33e01 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -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);