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ath9k-htc: replace __dev_alloc_skb with alloc_skb in reg in path

PATCH New [email protected] 1 participant 1 message Apr 10, 2010 Qualcomm Atheros ATH9K wireless driver

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PATCH 2/3 ath9k-htc: replace __dev_alloc_skb with alloc_skb in reg in path

From: Ming Lei <[email protected]>

In ath9k-htc register in path, ath9k-htc will pass skb->data into usb hcd and usb hcd will do dma mapping and unmapping to the buffer pointed by skb->data, so we should pass a cache-line aligned address.

This patch replace __dev_alloc_skb with alloc_skb to make skb->data pointed to a cacheline aligned address simply since ath9k-htc does not skb_push on the skb.

Signed-off-by Ming Lei <[email protected]>
---
 drivers/net/wireless/ath/ath9k/hif_usb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
drivers/net/wireless/ath/ath9k/hif_usb.c +2 -2
index a498815..be4dfbd 100644
@@ -499,7 +499,7 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
 	if (likely(urb->actual_length != 0)) {
 		skb_put(skb, urb->actual_length);
 
-		nskb = __dev_alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC);
+		nskb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC);
 		if (!nskb)
 			goto resubmit;
 

@@ -684,7 +684,7 @@ static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb *hif_dev)
 	if (hif_dev->reg_in_urb == NULL)
 		return -ENOMEM;
 
-	skb = __dev_alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
+	skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
 	if (!skb)
 		goto err;
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