From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B23E9C4321E for ; Tue, 16 Nov 2021 00:32:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 97EAB61A0A for ; Tue, 16 Nov 2021 00:32:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344065AbhKPAfM (ORCPT ); Mon, 15 Nov 2021 19:35:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:45396 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344006AbhKOTXH (ORCPT ); Mon, 15 Nov 2021 14:23:07 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A7151633A9; Mon, 15 Nov 2021 18:49:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637002199; bh=PMCUqF9vurBqj+h+7PPkSXjzQ2/2zTs6z01L2iua1wQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YDGeOucivKrgDhUcWpY/RFZHK0XI/kwkF4c7wPDJchxqQ1BHuwg87e7V4wY74VSBc ZdI6dDTLVa5ujIp/5uhEjRWQeEcqiRjpnZmNz1UQx7j36LaOvgUzaIkaXdDvfZt8Go Twm1oG0MSBic+NA7YW+ZzcKUAdNxORs6z0WEn0CQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 5.15 475/917] mt76: mt7921: always wake device if necessary in debugfs Date: Mon, 15 Nov 2021 17:59:30 +0100 Message-Id: <20211115165444.882834918@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lorenzo Bianconi [ Upstream commit 569008744178b672ea3ad9047fa3098f1b73ca55 ] Add missing device wakeup in debugfs code if we are accessing chip registers. Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support") Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c index 4c89c4ac8031a..30f3b3085c786 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c @@ -95,6 +95,8 @@ mt7921_tx_stats_show(struct seq_file *file, void *data) struct mt7921_dev *dev = file->private; int stat[8], i, n; + mt7921_mutex_acquire(dev); + mt7921_ampdu_stat_read_phy(&dev->phy, file); /* Tx amsdu info */ @@ -104,6 +106,8 @@ mt7921_tx_stats_show(struct seq_file *file, void *data) n += stat[i]; } + mt7921_mutex_release(dev); + for (i = 0; i < ARRAY_SIZE(stat); i++) { seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ", i + 1, stat[i]); @@ -124,6 +128,8 @@ mt7921_queues_acq(struct seq_file *s, void *data) struct mt7921_dev *dev = dev_get_drvdata(s->private); int i; + mt7921_mutex_acquire(dev); + for (i = 0; i < 16; i++) { int j, acs = i / 4, index = i % 4; u32 ctrl, val, qlen = 0; @@ -143,6 +149,8 @@ mt7921_queues_acq(struct seq_file *s, void *data) seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen); } + mt7921_mutex_release(dev); + return 0; } -- 2.33.0