You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
From 74e0deb89a8ba27c132b1f0e08643e215b5c1f92 Mon Sep 17 00:00:00 2001
|
|
From: Christoph Hellwig <hch@lst.de>
|
|
Date: Mon, 11 Feb 2019 14:20:00 +0100
|
|
Subject: [PATCH] lantiq_etop: pass struct device to DMA API functions
|
|
|
|
The DMA API generally relies on a struct device to work properly, and
|
|
only barely works without one for legacy reasons. Pass the easily
|
|
available struct device from the platform_device to remedy this.
|
|
|
|
Note this driver seems to lack dma_unmap_* calls entirely, but fixing
|
|
that is left for another time.
|
|
|
|
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/ethernet/lantiq_etop.c | 6 ++++--
|
|
1 file changed, 4 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/lantiq_etop.c
|
|
+++ b/drivers/net/ethernet/lantiq_etop.c
|
|
@@ -112,10 +112,12 @@ struct ltq_etop_priv {
|
|
static int
|
|
ltq_etop_alloc_skb(struct ltq_etop_chan *ch)
|
|
{
|
|
+ struct ltq_etop_priv *priv = netdev_priv(ch->netdev);
|
|
+
|
|
ch->skb[ch->dma.desc] = netdev_alloc_skb(ch->netdev, MAX_DMA_DATA_LEN);
|
|
if (!ch->skb[ch->dma.desc])
|
|
return -ENOMEM;
|
|
- ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL,
|
|
+ ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(&priv->pdev->dev,
|
|
ch->skb[ch->dma.desc]->data, MAX_DMA_DATA_LEN,
|
|
DMA_FROM_DEVICE);
|
|
ch->dma.desc_base[ch->dma.desc].addr =
|
|
@@ -493,7 +495,7 @@ ltq_etop_tx(struct sk_buff *skb, struct
|
|
netif_trans_update(dev);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
- desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len,
|
|
+ desc->addr = ((unsigned int) dma_map_single(&priv->pdev->dev, skb->data, len,
|
|
DMA_TO_DEVICE)) - byte_offset;
|
|
wmb();
|
|
desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |
|