From: Ming Lei <tom.leiming@xxxxxxxxx>
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 <tom.leiming@xxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/hif_usb.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index a498815..be4dfbd 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -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;
--
1.6.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
