Return-path: Received: from mail-pv0-f174.google.com ([74.125.83.174]:44065 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752335Ab1E3XtO (ORCPT ); Mon, 30 May 2011 19:49:14 -0400 Received: by pvg12 with SMTP id 12so1775829pvg.19 for ; Mon, 30 May 2011 16:49:14 -0700 (PDT) Message-ID: <4DE42CF3.60108@ring3k.org> (sfid-20110531_014917_667877_067022FF) Date: Tue, 31 May 2011 08:49:07 +0900 From: Mike McCormack MIME-Version: 1.0 To: linville@tuxdriver.com CC: Larry.Finger@lwfinger.net, chaoming_li@realsil.com.cn, linux-wireless@vger.kernel.org Subject: [PATCH 3/8] rtlwifi: Store loop index in local variable Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: _rtl_pci_rx_interrupt uses rtlpci->rx_ring[rx_queue_idx].idx a few times, so store it in a separate variable. Signed-off-by: Mike McCormack Signed-off-by: Larry Finger --- drivers/net/wireless/rtlwifi/pci.c | 20 ++++++++------------ 1 files changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 89100e7..b44de0d 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -644,22 +644,23 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) .noise = -98, .rate = 0, }; + int index = rtlpci->rx_ring[rx_queue_idx].idx; /*RX NORMAL PKT */ while (count--) { /*rx descriptor */ struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[ - rtlpci->rx_ring[rx_queue_idx].idx]; + index]; /*rx pkt */ struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[ - rtlpci->rx_ring[rx_queue_idx].idx]; + index]; own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false, HW_DESC_OWN); if (own) { /*wait data to be filled by hardware */ - return; + break; } else { struct ieee80211_hdr *hdr; __le16 fc; @@ -770,10 +771,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) skb = new_skb; - rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci-> - rx_ring - [rx_queue_idx]. - idx] = skb; + rtlpci->rx_ring[rx_queue_idx].rx_buf[index] = skb; *((dma_addr_t *) skb->cb) = pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), rtlpci->rxbuffersize, @@ -792,17 +790,15 @@ done: HW_DESC_RXPKT_LEN, (u8 *)&rtlpci->rxbuffersize); - if (rtlpci->rx_ring[rx_queue_idx].idx == - rtlpci->rxringcount - 1) + if (index == rtlpci->rxringcount - 1) rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXERO, (u8 *)&tmp_one); - rtlpci->rx_ring[rx_queue_idx].idx = - (rtlpci->rx_ring[rx_queue_idx].idx + 1) % - rtlpci->rxringcount; + index = (index + 1) % rtlpci->rxringcount; } + rtlpci->rx_ring[rx_queue_idx].idx = index; } static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) -- 1.7.4.1