Return-path: Received: from mail-pz0-f193.google.com ([209.85.222.193]:40429 "EHLO mail-pz0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751696Ab0DJPFe (ORCPT ); Sat, 10 Apr 2010 11:05:34 -0400 Received: by mail-pz0-f193.google.com with SMTP id 31so817455pzk.33 for ; Sat, 10 Apr 2010 08:05:33 -0700 (PDT) From: tom.leiming@gmail.com To: Sujith.Manoharan@atheros.com, lrodriguez@atheros.com Cc: linux-wireless@vger.kernel.org, linville@tuxdriver.com, Ming Lei Subject: [PATCH 2/3] ath9k-htc: replace __dev_alloc_skb with alloc_skb in reg in path Date: Sat, 10 Apr 2010 23:05:09 +0800 Message-Id: <1270911909-5750-1-git-send-email-tom.leiming@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ming Lei 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 --- 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