3.2.58-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
commit 2610decdd0b3808ba20471a999835cfee5275f98 upstream.
In commit f78bccd79ba3cd9d9664981b501d57bdb81ab8a4 entitled "rtlwifi:
rtl8192ce: Fix too long disable of IRQs", Olivier Langlois
<olivier@xxxxxxxxxxxxxx> fixed a problem caused by an extra long disabling
of interrupts. This patch makes the same fix for rtl8192se.
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
[bwh: Backported to 3.2:
- Adjust context
- Drop change to an error path that we don't have]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
--- a/drivers/net/wireless/rtlwifi/rtl8192se/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/hw.c
@@ -924,7 +924,7 @@ int rtl92se_hw_init(struct ieee80211_hw
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
u8 tmp_byte = 0;
-
+ unsigned long flags;
bool rtstatus = true;
u8 tmp_u1b;
int err = false;
@@ -936,6 +936,16 @@ int rtl92se_hw_init(struct ieee80211_hw
rtlpci->being_init_adapter = true;
+ /* As this function can take a very long time (up to 350 ms)
+ * and can be called with irqs disabled, reenable the irqs
+ * to let the other devices continue being serviced.
+ *
+ * It is safe doing so since our own interrupts will only be enabled
+ * in a subsequent step.
+ */
+ local_save_flags(flags);
+ local_irq_enable();
+
rtlpriv->intf_ops->disable_aspm(hw);
/* 1. MAC Initialize */
@@ -969,7 +979,8 @@ int rtl92se_hw_init(struct ieee80211_hw
/* 3. Initialize MAC/PHY Config by MACPHY_reg.txt */
if (rtl92s_phy_mac_config(hw) != true) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("MAC Config failed\n"));
- return rtstatus;
+ err = rtstatus;
+ goto exit;
}
/* Make sure BB/RF write OK. We should prevent enter IPS. radio off. */
@@ -979,7 +990,8 @@ int rtl92se_hw_init(struct ieee80211_hw
/* 4. Initialize BB After MAC Config PHY_reg.txt, AGC_Tab.txt */
if (rtl92s_phy_bb_config(hw) != true) {
RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, ("BB Config failed\n"));
- return rtstatus;
+ err = rtstatus;
+ goto exit;
}
/* 5. Initiailze RF RAIO_A.txt RF RAIO_B.txt */
@@ -1015,7 +1027,8 @@ int rtl92se_hw_init(struct ieee80211_hw
if (rtl92s_phy_rf_config(hw) != true) {
RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("RF Config failed\n"));
- return rtstatus;
+ err = rtstatus;
+ goto exit;
}
/* After read predefined TXT, we must set BB/MAC/RF
@@ -1089,8 +1102,9 @@ int rtl92se_hw_init(struct ieee80211_hw
rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_ON);
rtl92s_dm_init(hw);
+exit:
+ local_irq_restore(flags);
rtlpci->being_init_adapter = false;
-
return err;
}
--
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