This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8723ae: Fix too long disable of IRQs
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtlwifi-rtl8723ae-fix-too-long-disable-of-irqs.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bfc1010c418a22cbebd8b1bd1e75dad6a527a609 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Date: Tue, 4 Mar 2014 16:53:53 -0600
Subject: rtlwifi: rtl8723ae: Fix too long disable of IRQs
From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
commit bfc1010c418a22cbebd8b1bd1e75dad6a527a609 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 rtl8723ae.
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/rtl8723ae/hw.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c
@@ -880,14 +880,25 @@ int rtl8723ae_hw_init(struct ieee80211_h
bool rtstatus = true;
int err;
u8 tmp_u1b;
+ unsigned long flags;
rtlpriv->rtlhal.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);
rtstatus = _rtl8712e_init_mac(hw);
if (rtstatus != true) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Init MAC failed\n");
err = 1;
- return err;
+ goto exit;
}
err = rtl8723ae_download_fw(hw);
@@ -895,8 +906,7 @@ int rtl8723ae_hw_init(struct ieee80211_h
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
"Failed to download FW. Init HW without FW now..\n");
err = 1;
- rtlhal->fw_ready = false;
- return err;
+ goto exit;
} else {
rtlhal->fw_ready = true;
}
@@ -971,6 +981,8 @@ int rtl8723ae_hw_init(struct ieee80211_h
RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "under 1.5V\n");
}
rtl8723ae_dm_init(hw);
+exit:
+ local_irq_restore(flags);
rtlpriv->rtlhal.being_init_adapter = false;
return err;
}
Patches currently in stable-queue which might be from Larry.Finger@xxxxxxxxxxxx are
queue-3.14/rtlwifi-rtl8192cu-fix-too-long-disable-of-irqs.patch
queue-3.14/rtlwifi-rtl8188ee-initialize-packet_beacon.patch
queue-3.14/rtlwifi-rtl8192se-fix-regression-due-to-commit-1bf4bbb.patch
queue-3.14/rtlwifi-rtl8188ee-fix-too-long-disable-of-irqs.patch
queue-3.14/rtlwifi-rtl8723ae-fix-too-long-disable-of-irqs.patch
queue-3.14/rtlwifi-rtl8192se-fix-too-long-disable-of-irqs.patch
queue-3.14/b43-fix-machine-check-error-due-to-improper-access-of-b43_mmio_psm_phy_hdr.patch
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