From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-196919-1522174088-2-16455324450567424991 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, URIBL_BLACK 1.7, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1522174088; b=KQq/ZumRp2kqjXY8GXphligyOfzyM5wpSRrHbu4hoHviu+/ /AdMUFyXnDqOJ12DdqlAo/p79dchOLyRBi5guukFeb+GnYmW8CuRZ2dN0KDRckZu qpWheYBiYSfKdYPQGVF/qET3PPAKkHnYiWnAkMD1PAKV5degzMCxQhs/SWxKvILj ELW/sCg/qxLhRgzBnkO5Gz2hIkLIVfmG8zbxqExnT/D46pft4wUE4t3sIjaJqs0N Wt8W+/yTrAs/l6GqJb+xvi70ZIQOeDM7flN4vxILnMBL3tCQcd9atkxkHi6NpFP0 uud6aeMzpcmnOsaClelO9rjj3CNymGhelCRnxLg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1522174088; bh=vxZTEl/0IbHtpYr+vTNxZF3pVJ 6fx6Plao5XZLuvm8M=; b=KsrArolbtMu5U9rF7G64RmR0+7ZzsSkZTiDftyAXWi zkI/QsO/btybomVu037W/c2VJGBJ3wK728gea94T0jP9JRkhGnzDfxThacp+tteE 0ouJUigDVZM308yihiv84xDkbCTgA+TcfKxiC2+qjRyg3ooagxmfllZm5Orgxxvk VOEOwr/t8krcOfUKQQG18qImoEFeU250/5QLOwUBWrguDecHZkWc1ZxkZYa4fqdD nrPiRkoasoKakJLZLWRk+2EAtYw2xlFHjpNQXjpy+MKdxFibsDXwx/qbQihGVmso TPb3Ud/XWj/0q2PKul+bXK4eSFo0eAoV8KSpbniPej9w== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfP+tfA67or7JCi7lTxHNoN/pIq+KxerGb7xgrZPoaeSqUxsFEYtoGCs8+n4kLXylc6NAA0vpng6kvmw0Wn5h2RK7N/shwjHj4QIVfjyzixCkkR4H3E+m PYXFEwEI9AR2I5oPaEOu7KOisRLJiivgHGseNGzJFhoxECChXzXN6ahBjN4ctCRczQ+PzP3wedH/rir33Dq04aee4Txi9KzrY50LhXE2mXngTeWZ1zKyJFGn X-CM-Analysis: v=2.3 cv=JLoVTfCb c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=IkcTkHD0fZMA:10 a=v2DPQv5-lfwA:10 a=yQdBAQUQAAAA:8 a=VwQbUJbxAAAA:8 a=Op-mwl0xAAAA:8 a=LpQP-O61AAAA:8 a=ag1SF4gXAAAA:8 a=PiMjbuRkwvBlGGGJ92oA:9 a=QEXdDO2ut3YA:10 a=SzazLyfi1tnkUD6oumHU:22 a=AjGcO6oz07-iQ99wixmX:22 a=_kNtSFdpYmJUICABlfa3:22 a=pioyyrs4ZptJ924tMmac:22 a=Yupwre4RP9_Eg_Bd0iYG:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751110AbeC0SH4 (ORCPT ); Tue, 27 Mar 2018 14:07:56 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:41360 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751192AbeC0Q3a (ORCPT ); Tue, 27 Mar 2018 12:29:30 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Larry Finger , James Cameron , Kalle Valo Subject: [PATCH 4.4 27/43] rtlwifi: rtl8723be: Fix loss of signal Date: Tue, 27 Mar 2018 18:27:31 +0200 Message-Id: <20180327162717.940562599@linuxfoundation.org> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180327162716.407986916@linuxfoundation.org> References: <20180327162716.407986916@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Larry Finger 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 Cc: Stable Tested-by: James Cameron Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- 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