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ath10k: remove DMA mapping wrappers

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There's no real benefit from using them. DMA-API
already provides debugging. Some skbuffs are
already mapped directly with DMA-API since wrapper
arguments were insufficient and extending them
would be pointless.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior
2014-02-27 18:50:03 +02:00
committed by Kalle Valo
parent a80ddb003a
commit 767d34fc67
6 changed files with 34 additions and 42 deletions
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11
drivers/net/wireless/ath/ath10k/htc.c
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@@ -63,7 +63,9 @@ static struct sk_buff *ath10k_htc_build_tx_ctrl_skb(void *ar)
static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc,
struct sk_buff *skb)
{
ath10k_skb_unmap(htc->ar->dev, skb);
struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
dma_unmap_single(htc->ar->dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE);
skb_pull(skb, sizeof(struct ath10k_htc_hdr));
}
@@ -122,6 +124,8 @@ int ath10k_htc_send(struct ath10k_htc *htc,
struct sk_buff *skb)
{
struct ath10k_htc_ep *ep = &htc->endpoint[eid];
struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
struct device *dev = htc->ar->dev;
int credits = 0;
int ret;
@@ -157,7 +161,8 @@ int ath10k_htc_send(struct ath10k_htc *htc,
ath10k_htc_prepare_tx_skb(ep, skb);
ret = ath10k_skb_map(htc->ar->dev, skb);
skb_cb->paddr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE);
ret = dma_mapping_error(dev, skb_cb->paddr);
if (ret)
goto err_credits;
@@ -169,7 +174,7 @@ int ath10k_htc_send(struct ath10k_htc *htc,
return 0;
err_unmap:
ath10k_skb_unmap(htc->ar->dev, skb);
dma_unmap_single(dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE);
err_credits:
if (ep->tx_credit_flow_enabled) {
spin_lock_bh(&htc->tx_lock);