Commit f072218c authored by Heiner Kallweit's avatar Heiner Kallweit Committed by David S. Miller

r8169: remove not needed call to dma_sync_single_for_device

DMA_API_HOWTO.txt includes an example explaining when
dma_sync_single_for_device() is not needed, and that example matches
our use case. The buffer isn't changed by the CPU and direction is
DMA_FROM_DEVICE, so we can remove the call to
dma_sync_single_for_device().
Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3c18cbe3
...@@ -5785,7 +5785,6 @@ static struct sk_buff *rtl8169_try_rx_copy(void *data, ...@@ -5785,7 +5785,6 @@ static struct sk_buff *rtl8169_try_rx_copy(void *data,
skb = napi_alloc_skb(&tp->napi, pkt_size); skb = napi_alloc_skb(&tp->napi, pkt_size);
if (skb) if (skb)
skb_copy_to_linear_data(skb, data, pkt_size); skb_copy_to_linear_data(skb, data, pkt_size);
dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
return skb; return skb;
} }
......
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