4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Larry Finger <Larry.Finger@xxxxxxxxxxxx> 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@xxxxxxxxxxxx> Cc: Stable <stable@xxxxxxxxxxxxxxx> Tested-by: James Cameron <quozl@xxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -1123,7 +1123,8 @@ 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