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=-14.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 40A63C433DB for ; Sun, 21 Mar 2021 11:45:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0DB406157E for ; Sun, 21 Mar 2021 11:45:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229926AbhCULna (ORCPT ); Sun, 21 Mar 2021 07:43:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229835AbhCULnU (ORCPT ); Sun, 21 Mar 2021 07:43:20 -0400 Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2522C061574 for ; Sun, 21 Mar 2021 04:43:19 -0700 (PDT) Received: by mail-ej1-x62b.google.com with SMTP id l4so16693666ejc.10 for ; Sun, 21 Mar 2021 04:43:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=TDSs0Wdws3Dw1QRt+KH/0C9LcbA2OE9+PNRlmoNP6DY=; b=a/UFs9KHU/efP1ZlxzYbmsMsY7371zSPuE7qMbp2ceV0HCtNvLuM02SijCoBveSEAu vdmghvfm20Tj6C6PIxD/QJ/xNzrKrGCYENqtrhoCacfy4sdQakDp4PyCGY/Yl8Oa6zQD JLIclKW7d8twLZYoATSXf5zpU4SiQ7Tw3f7UP/S5yN39R/5VzbHU7q1r1DvOimhq2DSF izCF1zmmLMhMrrIno4UyBMm9aGVQL6YpOoMQUkIrq5YdRcU+20MHGmeQivPqKz2ITsr4 IG4MZeyfdrpEAYRR6m3DJ25Q//+q+s06VaFL7GaeYHzuhk5Xn6xsUKdFr2G9QkVKD+9Q 7s2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :mime-version:content-disposition; bh=TDSs0Wdws3Dw1QRt+KH/0C9LcbA2OE9+PNRlmoNP6DY=; b=jQE5XC8sZjFrXt3Yq71adyVebkQUyd7JKJIwOOKGCg4Fm1dp+z35dQRPajse2wyEXk XC+ABFJbCQfq/v95uSTWr5mM9jLQ0rF0hc2TVi065izyzHi1H/Vzy2uJbtj58jjk1+d4 gD3zQaTOyIpUJ73WCj1gXiSuizv3DCpY2PCsjTxrom+pq2YPC/sIz2QHKeFc7TlXbv5P a7lQuZ1N7PtP+abfFcoz8xUlp2xCGBxYIzVyf5IFRiCBFNJ3mVh/SAvUAsGTggLwOWmO qmKEQ6M0vJJbZxIU6vZbYIrZBbsiuK8OCeVEqEbiOoeCX6nERugA30qQquArX3DLjbYN +BOQ== X-Gm-Message-State: AOAM530fGdj/cnHgYdoEXZ4i2EpDYsWVVupvEQw2HM5VgBVHjq9sq5OW NJNXiaxAd8LIxpE4SaHKF80= X-Google-Smtp-Source: ABdhPJxseaSemOOH8IkeaYt2ggXpGzgZFPn0Idm52oxXl7qPr93mnhtxcNnKieSPAw6vTlLRNBd06Q== X-Received: by 2002:a17:906:2692:: with SMTP id t18mr13913791ejc.16.1616326998408; Sun, 21 Mar 2021 04:43:18 -0700 (PDT) Received: from gmail.com (54033286.catv.pool.telekom.hu. [84.3.50.134]) by smtp.gmail.com with ESMTPSA id jv19sm6930576ejc.74.2021.03.21.04.43.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Mar 2021 04:43:17 -0700 (PDT) Sender: Ingo Molnar Date: Sun, 21 Mar 2021 12:43:15 +0100 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Peter Zijlstra , Borislav Petkov , Andrew Morton Subject: [GIT PULL] IRQ updates & fixes Message-ID: <20210321114315.GA290313@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest irq/urgent git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-urgent-2021-03-21 # HEAD: 81e2073c175b887398e5bca6c004efa89983f58d genirq: Disable interrupts for force threaded handlers A change to robustify force-threaded IRQ handlers to always disable interrupts, plus a DocBook fix. [ Note: the force-threaded IRQ handler change has been accelerated from the normal schedule of such a change to keep the bad pattern/workaround of spin_lock_irqsave() in handlers or IRQF_NOTHREAD as a kludge from spreading. ] Thanks, Ingo ------------------> Andy Shevchenko (1): genirq/irq_sim: Fix typos in kernel doc (fnode -> fwnode) Thomas Gleixner (1): genirq: Disable interrupts for force threaded handlers kernel/irq/irq_sim.c | 4 ++-- kernel/irq/manage.c | 4 ++++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/kernel/irq/irq_sim.c b/kernel/irq/irq_sim.c index 48006608baf0..40880c350b95 100644 --- a/kernel/irq/irq_sim.c +++ b/kernel/irq/irq_sim.c @@ -159,7 +159,7 @@ static const struct irq_domain_ops irq_sim_domain_ops = { * irq_domain_create_sim - Create a new interrupt simulator irq_domain and * allocate a range of dummy interrupts. * - * @fnode: struct fwnode_handle to be associated with this domain. + * @fwnode: struct fwnode_handle to be associated with this domain. * @num_irqs: Number of interrupts to allocate. * * On success: return a new irq_domain object. @@ -228,7 +228,7 @@ static void devm_irq_domain_release_sim(struct device *dev, void *res) * a managed device. * * @dev: Device to initialize the simulator object for. - * @fnode: struct fwnode_handle to be associated with this domain. + * @fwnode: struct fwnode_handle to be associated with this domain. * @num_irqs: Number of interrupts to allocate * * On success: return a new irq_domain object. diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index dec3f73e8db9..21ea370fccda 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -1142,11 +1142,15 @@ irq_forced_thread_fn(struct irq_desc *desc, struct irqaction *action) irqreturn_t ret; local_bh_disable(); + if (!IS_ENABLED(CONFIG_PREEMPT_RT)) + local_irq_disable(); ret = action->thread_fn(action->irq, action->dev_id); if (ret == IRQ_HANDLED) atomic_inc(&desc->threads_handled); irq_finalize_oneshot(desc, action); + if (!IS_ENABLED(CONFIG_PREEMPT_RT)) + local_irq_enable(); local_bh_enable(); return ret; }