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authorMike McCormack <mikem@ring3k.org>2011-05-31 08:49:23 +0900
committerJohn W. Linville <linville@tuxdriver.com>2011-06-03 14:57:33 -0400
commit67fc6052a49b781efbcfc138f3b68fe79ddd0c2f (patch)
treef4d4b5a1ac2dc2c304c2e87bca6917f6bdb08f1d
parent34ddb2077e5ced1a09a1dd2cbb82f807bfc5f88b (diff)
rtlwifi: Run IPS leave work in a tasklet
This removes the need to use IRQ safe spinlocks in many places. Signed-off-by: Mike McCormack <mikem@ring3k.org> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/rtlwifi/pci.c14
-rw-r--r--drivers/net/wireless/rtlwifi/ps.c1
-rw-r--r--drivers/net/wireless/rtlwifi/wifi.h1
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index b44de0d0cc9c..6c1b9dffc075 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 a73ffbe68ba4..fd3b04f0843f 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 03213285f77b..9d003e0864f5 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 {