Return-path: Received: from mail-pw0-f46.google.com ([209.85.160.46]:54174 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753042Ab1E3Xt3 (ORCPT ); Mon, 30 May 2011 19:49:29 -0400 Received: by pwi15 with SMTP id 15so1804309pwi.19 for ; Mon, 30 May 2011 16:49:28 -0700 (PDT) Message-ID: <4DE42D03.4050407@ring3k.org> (sfid-20110531_014933_003836_B6D95301) Date: Tue, 31 May 2011 08:49:23 +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 4/8] rtlwifi: Run IPS leave work in a tasklet Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: This removes the need to use IRQ safe spinlocks in many places. Signed-off-by: Mike McCormack Signed-off-by: Larry Finger --- drivers/net/wireless/rtlwifi/pci.c | 14 ++++++++++++-- drivers/net/wireless/rtlwifi/ps.c | 1 + drivers/net/wireless/rtlwifi/wifi.h | 1 + 3 files changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index b44de0d..6c1b9df 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -622,7 +622,7 @@ tx_status_ok: if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) { - rtl_lps_leave(hw); + tasklet_schedule(&rtlpriv->works.ips_leave_tasklet); } } @@ -766,7 +766,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) { - rtl_lps_leave(hw); + tasklet_schedule(&rtlpriv->works.ips_leave_tasklet); } skb = new_skb; @@ -936,6 +936,11 @@ static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw) _rtl_pci_tx_chk_waitq(hw); } +static void _rtl_pci_ips_leave_tasklet(struct ieee80211_hw *hw) +{ + rtl_lps_leave(hw); +} + static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); @@ -1034,6 +1039,9 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw, tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet, (unsigned long)hw); + tasklet_init(&rtlpriv->works.ips_leave_tasklet, + (void (*)(unsigned long))_rtl_pci_ips_leave_tasklet, + (unsigned long)hw); } static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw, @@ -1503,6 +1511,7 @@ static void rtl_pci_deinit(struct ieee80211_hw *hw) synchronize_irq(rtlpci->pdev->irq); tasklet_kill(&rtlpriv->works.irq_tasklet); + tasklet_kill(&rtlpriv->works.ips_leave_tasklet); flush_workqueue(rtlpriv->works.rtl_wq); destroy_workqueue(rtlpriv->works.rtl_wq); @@ -1577,6 +1586,7 @@ static void rtl_pci_stop(struct ieee80211_hw *hw) set_hal_stop(rtlhal); rtlpriv->cfg->ops->disable_interrupt(hw); + tasklet_kill(&rtlpriv->works.ips_leave_tasklet); spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); while (ppsc->rfchange_inprogress) { diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c index 39b0297..5552b8c 100644 --- a/drivers/net/wireless/rtlwifi/ps.c +++ b/drivers/net/wireless/rtlwifi/ps.c @@ -68,6 +68,7 @@ bool rtl_ps_disable_nic(struct ieee80211_hw *hw) /*<2> Disable Interrupt */ rtlpriv->cfg->ops->disable_interrupt(hw); + tasklet_kill(&rtlpriv->works.irq_tasklet); /*<3> Disable Adapter */ rtlpriv->cfg->ops->hw_disable(hw); diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index 0321328..9d003e0 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -1535,6 +1535,7 @@ struct rtl_works { /* For SW LPS */ struct delayed_work ps_work; struct delayed_work ps_rfon_wq; + struct tasklet_struct ips_leave_tasklet; }; struct rtl_debug { -- 1.7.4.1