From patchwork Tue Aug 9 08:41:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 12939417 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7882DC25B07 for ; Tue, 9 Aug 2022 08:41:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240484AbiHIIlo (ORCPT ); Tue, 9 Aug 2022 04:41:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44118 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239203AbiHIIlj (ORCPT ); Tue, 9 Aug 2022 04:41:39 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 2EA3B1E3E3 for ; Tue, 9 Aug 2022 01:41:38 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 2798fJrbD006257, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36504.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 2798fJrbD006257 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Tue, 9 Aug 2022 16:41:19 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36504.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Tue, 9 Aug 2022 16:41:29 +0800 Received: from localhost (172.16.16.191) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Tue, 9 Aug 2022 16:41:28 +0800 From: Ping-Ke Shih To: , CC: , Subject: [PATCH v2 6/7] wifi: rtw88: add flag check before enter or leave IPS Date: Tue, 9 Aug 2022 16:41:06 +0800 Message-ID: <20220809084107.38137-7-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220809084107.38137-1-pkshih@realtek.com> References: <20220809084107.38137-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.16.16.191] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: trusted connection X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 08/09/2022 08:22:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIyLzgvOSCkV6TIIDA2OjU1?= =?big5_tw?b?OjAw?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-ServerInfo: RTEXH36504.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Chih-Kang Chang Enter or leave IPS controlled by mac80211 before driver support HW scan. After support HW scan, driver need to control IPS before start HW scan and scan complete, but mac80211 also ask driver enter or leave IPS. Therefore, we add flag check in IPS to prevent entering or leaving IPS twice. Signed-off-by: Chih-Kang Chang Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw88/ps.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/ps.c b/drivers/net/wireless/realtek/rtw88/ps.c index bfa64c038f5f0..c93da743681fc 100644 --- a/drivers/net/wireless/realtek/rtw88/ps.c +++ b/drivers/net/wireless/realtek/rtw88/ps.c @@ -19,14 +19,14 @@ static int rtw_ips_pwr_up(struct rtw_dev *rtwdev) rtw_err(rtwdev, "leave idle state failed\n"); rtw_set_channel(rtwdev); - clear_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags); return ret; } int rtw_enter_ips(struct rtw_dev *rtwdev) { - set_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags); + if (test_and_set_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + return 0; rtw_coex_ips_notify(rtwdev, COEX_IPS_ENTER); @@ -50,6 +50,9 @@ int rtw_leave_ips(struct rtw_dev *rtwdev) { int ret; + if (!test_and_clear_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + return 0; + rtw_hci_link_ps(rtwdev, false); ret = rtw_ips_pwr_up(rtwdev);