diff options
| author | Ming Lei <tom.leiming@gmail.com> | 2010-04-13 00:29:15 +0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-14 14:52:43 -0400 |
| commit | 0fa35a5836df2b8f285d6f53dfb4316c34621f88 (patch) | |
| tree | 220eccf35fdff1213f4d6a1fd2c9312021e55c89 /drivers/net/wireless/ath/ath9k/hif_usb.c | |
| parent | e6c6d33cb7d18721e56ce4bb5a0e22593956ef14 (diff) | |
ath9k-htc:respect usb buffer cacheline alignment in reg out path
In ath9k-htc register out 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 and pass it to mac80211, also use kfree_skb to free
the skb allocated by alloc_skb(we can use kfree_skb safely in hardirq
context since skb->destructor is NULL always in the path).
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hif_usb.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hif_usb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 259de170ea2..3d8f0f468f8 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -53,7 +53,7 @@ static void hif_usb_regout_cb(struct urb *urb) return; free: - dev_kfree_skb_any(cmd->skb); + kfree_skb(cmd->skb); kfree(cmd); } |