From patchwork Fri Jan 17 17:41:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 213270 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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS 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 46457C33CB3 for ; Fri, 17 Jan 2020 17:43:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1BD8324679 for ; Fri, 17 Jan 2020 17:43:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729826AbgAQRnh (ORCPT ); Fri, 17 Jan 2020 12:43:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:39864 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727766AbgAQRl3 (ORCPT ); Fri, 17 Jan 2020 12:41:29 -0500 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E5CC521582; Fri, 17 Jan 2020 17:41:28 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.93) (envelope-from ) id 1isVcd-000QN6-OQ; Fri, 17 Jan 2020 12:41:27 -0500 Message-Id: <20200117174127.641378857@goodmis.org> User-Agent: quilt/0.65 Date: Fri, 17 Jan 2020 12:41:13 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-rt-users Cc: Thomas Gleixner , Carsten Emde , Sebastian Andrzej Siewior , John Kacur , Julia Cartwright , Daniel Wagner , Tom Zanussi Subject: [PATCH RT 02/32] i2c: hix5hd2: Remove IRQF_ONESHOT References: <20200117174111.282847363@goodmis.org> MIME-Version: 1.0 Sender: linux-rt-users-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org 4.19.94-rt39-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior [ Upstream commit e88b481f3f86f11e3243e0808a830e5ca5782a9d ] The drivers sets IRQF_ONESHOT and passes only a primary handler. The IRQ is masked while the primary is handler is invoked independently of IRQF_ONESHOT. With IRQF_ONESHOT the core code will not force-thread the interrupt and this is probably not intended. I *assume* that the original author copied the IRQ registration from another driver which passed a primary and secondary handler and removed the secondary handler but keeping the ONESHOT flag. Remove IRQF_ONESHOT. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Steven Rostedt (VMware) --- drivers/i2c/busses/i2c-hix5hd2.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-hix5hd2.c b/drivers/i2c/busses/i2c-hix5hd2.c index 061a4bfb03f4..575aff50b19a 100644 --- a/drivers/i2c/busses/i2c-hix5hd2.c +++ b/drivers/i2c/busses/i2c-hix5hd2.c @@ -449,8 +449,7 @@ static int hix5hd2_i2c_probe(struct platform_device *pdev) hix5hd2_i2c_init(priv); ret = devm_request_irq(&pdev->dev, irq, hix5hd2_i2c_irq, - IRQF_NO_SUSPEND | IRQF_ONESHOT, - dev_name(&pdev->dev), priv); + IRQF_NO_SUSPEND, dev_name(&pdev->dev), priv); if (ret != 0) { dev_err(&pdev->dev, "cannot request HS-I2C IRQ %d\n", irq); goto err_clk;