From patchwork Wed Oct 21 03:05:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tian Tao X-Patchwork-Id: 11848205 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 60A6014B7 for ; Wed, 21 Oct 2020 03:04:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4EB8F2225D for ; Wed, 21 Oct 2020 03:04:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406831AbgJUDEy (ORCPT ); Tue, 20 Oct 2020 23:04:54 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:37502 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2406694AbgJUDEy (ORCPT ); Tue, 20 Oct 2020 23:04:54 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A26D780450BD7FB833D0; Wed, 21 Oct 2020 11:04:51 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Wed, 21 Oct 2020 11:04:46 +0800 From: Tian Tao To: , , , , , , Subject: [PATCH] thermal: replace spin_lock_irqsave by spin_lock in hard IRQ Date: Wed, 21 Oct 2020 11:05:30 +0800 Message-ID: <1603249530-25218-1-git-send-email-tiantao6@hisilicon.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org The code has been in a irq-disabled context since it is hard IRQ. There is no necessity to do it again. Signed-off-by: Tian Tao Tested-by: Niklas Söderlund --- drivers/thermal/rcar_thermal.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 5c2a13b..6ae757d 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -409,16 +409,15 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data) { struct rcar_thermal_common *common = data; struct rcar_thermal_priv *priv; - unsigned long flags; u32 status, mask; - spin_lock_irqsave(&common->lock, flags); + spin_lock(&common->lock); mask = rcar_thermal_common_read(common, INTMSK); status = rcar_thermal_common_read(common, STR); rcar_thermal_common_write(common, STR, 0x000F0F0F & mask); - spin_unlock_irqrestore(&common->lock, flags); + spin_unlock(&common->lock); status = status & ~mask;