Patch "rtlwifi: rtl8723be: Fix loss of signal" has been added to the 4.9-stable tree

Patch "rtlwifi: rtl8723be: Fix loss of signal" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    rtlwifi: rtl8723be: Fix loss of signal

to the 4.9-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-rtl8723be-fix-loss-of-signal.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 78dc897b7ee67205423dbbc6b56be49fb18d15b5 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 22 Feb 2018 14:28:59 -0600
Subject: rtlwifi: rtl8723be: Fix loss of signal

From: Larry Finger <Larry.Finger@lwfinger.net>

commit 78dc897b7ee67205423dbbc6b56be49fb18d15b5 upstream.

In commit c713fb071edc ("rtlwifi: rtl8821ae: Fix connection lost problem
correctly") a problem in rtl8821ae that caused loss of signal was fixed.
That same problem has now been reported for rtl8723be. Accordingly,
the ASPM L1 latency has been increased from 0 to 7 to fix the instability.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
@@ -1125,7 +1125,8 @@ static void _rtl8723be_enable_aspm_back_
 
 	/* Configuration Space offset 0x70f BIT7 is used to control L0S */
 	tmp8 = _rtl8723be_dbi_read(rtlpriv, 0x70f);
-	_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7));
+	_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7) |
+			     ASPM_L1_LATENCY << 3);
 
 	/* Configuration Space offset 0x719 Bit3 is for L1
 	 * BIT4 is for clock request


Patches currently in stable-queue which might be from Larry.Finger@lwfinger.net are

queue-4.9/rtlwifi-rtl8723be-fix-loss-of-signal.patch