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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2019-06-27 23:19:09 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-29 12:29:39 -0700 |
| commit | f072218cca5b076dd99f3dfa3aaafedfd0023a51 (patch) | |
| tree | 116642c249c9fb87a4837c6e64c4efacca1888d0 /drivers/net | |
| parent | r8169: consider that 32 Bit DMA is the default (diff) | |
| download | linux-dev-f072218cca5b076dd99f3dfa3aaafedfd0023a51.tar.xz linux-dev-f072218cca5b076dd99f3dfa3aaafedfd0023a51.zip | |
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: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 1b5f125e1b6c..a73f2532115b 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -5785,7 +5785,6 @@ static struct sk_buff *rtl8169_try_rx_copy(void *data, skb = napi_alloc_skb(&tp->napi, pkt_size); if (skb) skb_copy_to_linear_data(skb, data, pkt_size); - dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE); return skb; } |