This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8188ee: 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-rtl8188ee-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 6b6392715856d563719991e9ce95e773491a8983 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Date: Tue, 4 Mar 2014 16:53:52 -0600
Subject: rtlwifi: rtl8188ee: Fix too long disable of IRQs
From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
commit 6b6392715856d563719991e9ce95e773491a8983 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 rtl8188ee.
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/rtl8188ee/hw.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
@@ -1025,9 +1025,20 @@ int rtl88ee_hw_init(struct ieee80211_hw
bool rtstatus = true;
int err = 0;
u8 tmp_u1b, u1byte;
+ unsigned long flags;
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "Rtl8188EE hw init\n");
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);
tmp_u1b = rtl_read_byte(rtlpriv, REG_SYS_CLKR+1);
@@ -1043,7 +1054,7 @@ int rtl88ee_hw_init(struct ieee80211_hw
if (rtstatus != true) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Init MAC failed\n");
err = 1;
- return err;
+ goto exit;
}
err = rtl88e_download_fw(hw, false);
@@ -1051,8 +1062,7 @@ int rtl88ee_hw_init(struct ieee80211_hw
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;
}
@@ -1135,10 +1145,12 @@ int rtl88ee_hw_init(struct ieee80211_hw
}
rtl_write_byte(rtlpriv, REG_NAV_CTRL+2, ((30000+127)/128));
rtl88e_dm_init(hw);
+exit:
+ local_irq_restore(flags);
rtlpriv->rtlhal.being_init_adapter = false;
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "end of Rtl8188EE hw init %x\n",
err);
- return 0;
+ return err;
}
static enum version_8188e _rtl88ee_read_chip_version(struct ieee80211_hw *hw)
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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