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[PATCH v5 net-next 1/7] net: mvneta: Optimize rx path for small frame

From Gregory CLEMENT <gregory.clement@free-electrons.com>
Newsgroups linux.kernel
Subject [PATCH v5 net-next 1/7] net: mvneta: Optimize rx path for small frame
Date 2016-11-30 22:50 +0100
Message-ID <sJkVk-31F-27@gated-at.bofh.it> (permalink)
References <sJkVj-31F-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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>
---
 drivers/net/ethernet/marvell/mvneta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 87274d4ab102..1b84f746d748 100644
--- 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);
-- 
git-series 0.8.10

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[PATCH v5 net-next 1/7] net: mvneta: Optimize rx path for small frame Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-11-30 22:50 +0100

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