net: mvneta: Optimize rx path for small frame

For small frame reuse the phys_addr variable instead of accessing the
uncacheable value in the rx descriptor.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 0a24571e44b925622afdf586e48f98e06ba31a5d..2445428bd79c649643c29a5b8eb44ac3aba4ea28 100644 (file)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1918,7 +1918,7 @@ static int mvneta_rx_swbm(struct mvneta_port *pp, int rx_todo,
                                goto err_drop_frame;
 
                        dma_sync_single_range_for_cpu(dev->dev.parent,
-                                                     rx_desc->buf_phys_addr,
+                                                     phys_addr,
                                                      MVNETA_MH_SIZE + NET_SKB_PAD,
                                                      rx_bytes,
                                                      DMA_FROM_DEVICE);