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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E34F8C433E6 for ; Wed, 3 Feb 2021 12:48:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A3BA564DE7 for ; Wed, 3 Feb 2021 12:48:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230154AbhBCMru (ORCPT ); Wed, 3 Feb 2021 07:47:50 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:12117 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231252AbhBCMnX (ORCPT ); Wed, 3 Feb 2021 07:43:23 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4DW1Wh25k2z163X0; Wed, 3 Feb 2021 20:41:20 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.498.0; Wed, 3 Feb 2021 20:42:28 +0800 From: Xiaofei Tan To: , CC: Xiaofei Tan , , , Subject: [PATCH 3/6] rtc: r7301: Replace spin_lock_irqsave with spin_lock in hard IRQ Date: Wed, 3 Feb 2021 20:39:38 +0800 Message-ID: <1612355981-6764-4-git-send-email-tanxiaofei@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1612355981-6764-1-git-send-email-tanxiaofei@huawei.com> References: <1612355981-6764-1-git-send-email-tanxiaofei@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is redundant to do irqsave and irqrestore in hardIRQ context, where it has been in a irq-disabled context. Signed-off-by: Xiaofei Tan --- drivers/rtc/rtc-r7301.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-r7301.c b/drivers/rtc/rtc-r7301.c index aaf1b95..5dbaeb7 100644 --- a/drivers/rtc/rtc-r7301.c +++ b/drivers/rtc/rtc-r7301.c @@ -320,11 +320,10 @@ static irqreturn_t rtc7301_irq_handler(int irq, void *dev_id) { struct rtc_device *rtc = dev_id; struct rtc7301_priv *priv = dev_get_drvdata(rtc->dev.parent); - unsigned long flags; irqreturn_t ret = IRQ_NONE; u8 alrm_ctrl; - spin_lock_irqsave(&priv->lock, flags); + spin_lock(&priv->lock); rtc7301_select_bank(priv, 1); @@ -335,7 +334,7 @@ static irqreturn_t rtc7301_irq_handler(int irq, void *dev_id) rtc_update_irq(rtc, 1, RTC_IRQF | RTC_AF); } - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock(&priv->lock); return ret; } -- 2.8.1