diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-12-12 12:43:24 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-12-13 15:34:05 -0500 |
| commit | 6539306b2c3ceafbc4094cf68c58094c282da053 (patch) | |
| tree | 5ebe30b3b6aca06fb801abfd4a9abedeae1332f6 /drivers/net/wireless/rtlwifi/ps.c | |
| parent | 41affd5286fb91176eb99b34ecd8eb522ba22369 (diff) | |
rtlwifi: merge ips,lps spinlocks into one mutex
With previous patch "rtlwifi: use work for lps" we can now use mutex for
protecting ps mode changing critical sections. This fixes running system
with interrupts disabled for long time.
Merge ips_lock and lps_lock as they seems to protect the same data
structures (accessed in rtl_ps_set_rf_state() function).
Reported-by: Philipp Dreimann <philipp@dreimann.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Mike McCormack <mikem@ring3k.org>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtlwifi/ps.c')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/ps.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c index 55c8e50f45fd..a14a68b24635 100644 --- a/drivers/net/wireless/rtlwifi/ps.c +++ b/drivers/net/wireless/rtlwifi/ps.c @@ -241,7 +241,7 @@ void rtl_ips_nic_on(struct ieee80211_hw *hw) if (mac->opmode != NL80211_IFTYPE_STATION) return; - spin_lock(&rtlpriv->locks.ips_lock); + mutex_lock(&rtlpriv->locks.ps_mutex); if (ppsc->inactiveps) { rtstate = ppsc->rfpwr_state; @@ -257,7 +257,7 @@ void rtl_ips_nic_on(struct ieee80211_hw *hw) } } - spin_unlock(&rtlpriv->locks.ips_lock); + mutex_unlock(&rtlpriv->locks.ps_mutex); } /*for FW LPS*/ @@ -395,7 +395,7 @@ void rtl_lps_enter(struct ieee80211_hw *hw) if (mac->link_state != MAC80211_LINKED) return; - spin_lock_irq(&rtlpriv->locks.lps_lock); + mutex_lock(&rtlpriv->locks.ps_mutex); /* Idle for a while if we connect to AP a while ago. */ if (mac->cnt_after_linked >= 2) { @@ -407,7 +407,7 @@ void rtl_lps_enter(struct ieee80211_hw *hw) } } - spin_unlock_irq(&rtlpriv->locks.lps_lock); + mutex_unlock(&rtlpriv->locks.ps_mutex); } /*Leave the leisure power save mode.*/ @@ -416,9 +416,8 @@ void rtl_lps_leave(struct ieee80211_hw *hw) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); - unsigned long flags; - spin_lock_irqsave(&rtlpriv->locks.lps_lock, flags); + mutex_lock(&rtlpriv->locks.ps_mutex); if (ppsc->fwctrl_lps) { if (ppsc->dot11_psmode != EACTIVE) { @@ -439,7 +438,7 @@ void rtl_lps_leave(struct ieee80211_hw *hw) rtl_lps_set_psmode(hw, EACTIVE); } } - spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flags); + mutex_unlock(&rtlpriv->locks.ps_mutex); } /* For sw LPS*/ @@ -540,9 +539,9 @@ void rtl_swlps_rf_awake(struct ieee80211_hw *hw) RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM); } - spin_lock_irq(&rtlpriv->locks.lps_lock); + mutex_lock(&rtlpriv->locks.ps_mutex); rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS); - spin_unlock_irq(&rtlpriv->locks.lps_lock); + mutex_unlock(&rtlpriv->locks.ps_mutex); } void rtl_swlps_rfon_wq_callback(void *data) @@ -575,9 +574,9 @@ void rtl_swlps_rf_sleep(struct ieee80211_hw *hw) if (rtlpriv->link_info.busytraffic) return; - spin_lock_irq(&rtlpriv->locks.lps_lock); + mutex_lock(&rtlpriv->locks.ps_mutex); rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS); - spin_unlock_irq(&rtlpriv->locks.lps_lock); + mutex_unlock(&rtlpriv->locks.ps_mutex); if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM && !RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) { |