[Patch net-next 09/11] net:fec: remove unnessary memory copy for address alignment in .xmit()
From: Frank Li <hidden>
Date: 2014-09-03 20:38:15
Also in:
linux-devicetree
Subsystem:
freescale imx / mxc fec driver, networking drivers, the rest · Maintainers:
Wei Fang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2014-09-03 · [Patch net-next 09/11] net:fec: remove unnessary memory copy for address alignment in .xmit() · <hidden>
- 2014-09-03 · [Patch net-next 09/11] net:fec: remove unnessary memory copy for address alignment in .xmit() · <hidden>
From: Fugang Duan <redacted> i.MX6SX enet-avb IP support buffer address byte alignment for tx DMA transfer, so remove the unnessary memory copy for the enet avb IP. Signed-off-by: Fugang Duan <redacted> Signed-off-by: Frank Li <redacted> --- drivers/net/ethernet/freescale/fec_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index b388e29f..d09fe16 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c@@ -518,8 +518,9 @@ static int fec_enet_txq_submit_skb(struct fec_enet_priv_tx_q *txq, queue = skb_get_queue_mapping(skb); index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep); - if (((unsigned long) bufaddr) & FEC_ALIGNMENT || - id_entry->driver_data & FEC_QUIRK_SWAP_FRAME) { + if (!(id_entry->driver_data & FEC_QUIRK_HAS_AVB) && + ((((unsigned long)bufaddr) & FEC_ALIGNMENT || + id_entry->driver_data & FEC_QUIRK_SWAP_FRAME))) { memcpy(txq->tx_bounce[index], skb->data, buflen); bufaddr = txq->tx_bounce[index];
--
1.9.1
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