Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp6447511iob; Tue, 10 May 2022 19:50:55 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyhNXIOsbnkEaLcZni0WB2vhqR8Gsf7AeA5pPDqDz8niJwblJWH9wfYRbL/azVo+hqXCY1S X-Received: by 2002:a63:82c3:0:b0:3c2:85f2:b042 with SMTP id w186-20020a6382c3000000b003c285f2b042mr19025636pgd.419.1652237454903; Tue, 10 May 2022 19:50:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652237454; cv=none; d=google.com; s=arc-20160816; b=lmA7+R9p3WOhAjiIRZ5FR9i2jZESjxX09X+KDP/D2UwE7I2vi4CpfoOP4zO3UGTB/L RuJOCvQX/wHnTjB3mFk3bAQTL2AraiOVteCqQFva+TA9sBh+YX/tW3E+bf/RBYmbLwq3 KA8ckx15UYjt7qFldtzAqcH+sbrEnzD2o7A/+c/f20a8YAdWU78aZwJY291UDZVgaSYl xKgb7OLhI3qg4Er8NqO/o2JXMNOWi3bEIRaCkATdUtM0RdueZfOpJknNF1t3+moUoEgW pNRMFW8qFM5YY4fYa3ABP8d2ZiyGqdqU/szuIR+WnYhCLhz9+YMvl7BZbFsxDWWPKijU QEiw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:message-id:date:references :in-reply-to:subject:cc:to:dkim-signature:dkim-signature:from; bh=b/Hc0xBzi9qcoaDWgLQZwP9MQj6a0ovFYtpu2lUE0Gw=; b=GGyW1fkSsTdwjcv6/2hrXcLhlEIatUxj7r+xq+G0+dlByKDGvIlvg269lj8a5Ivhfx cNPUICSjt26MSCcGJx3bVJM00zn0M/hmnsZOGZJnjOjhfoWdia6pq+y8ig64hIUiIIav DqVYsMHsc0WRfYYtT7o4bHyavufIiUUe2nSSUKMISkFQuP4k48Kt9IdAe52fDZUR35uH lqqZGPsczoI2D+qrZa/kcClMGNFNHyjWZI2UsoUxrQIzTen4BbQqTSZ4jaMNfgs7V6pc 7l0ReI9iu1Ms0YEMP8gWVYaKAu1/zz9BF7NCJt6W2hbEtGQr+7oa00cuzgezFX9N1F3u /Qug== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=cS0Hlic5; dkim=neutral (no key) header.i=@linutronix.de; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id d1-20020a655ac1000000b003c1a429260fsi1271464pgt.791.2022.05.10.19.50.41; Tue, 10 May 2022 19:50:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=cS0Hlic5; dkim=neutral (no key) header.i=@linutronix.de; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348370AbiEJRsq (ORCPT + 99 others); Tue, 10 May 2022 13:48:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241938AbiEJRso (ORCPT ); Tue, 10 May 2022 13:48:44 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C65B22C13FE for ; Tue, 10 May 2022 10:44:46 -0700 (PDT) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1652204685; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=b/Hc0xBzi9qcoaDWgLQZwP9MQj6a0ovFYtpu2lUE0Gw=; b=cS0Hlic5blpLSoLhRbBtJdl5r7NhbsODIbqoMKIhLPZ+kV7RuNf6ZdEBHbMPBK39iSnuyy wO8Rxg++6CiQj3QEWJZLQc4C4TSlAmK1ctisxztbmh5SArIgHSoQs5ELWVts2Z1YJ54YaT AEUneTp0oTeeN0sGIOaePILTXFUIJNWT5q8b3ZxXAvAJcKw3GvzfONrKHX4n7GNs3HFXWL RMICnaQ8x4hZ8fTd1MNSK1FRf730XUgo1qo6tmEoYZd6k3mdHEEWnrA//MH4+BL4zGQkw1 VqYlQtzPv4ttp8o65d/7p3cWwaSWj/OFpeocMcnxu3GuNq856cgac8F6/1MiHQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1652204685; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=b/Hc0xBzi9qcoaDWgLQZwP9MQj6a0ovFYtpu2lUE0Gw=; b=J3+PlA10UEeWYsIFweAxknRwtegIrA2o2Ut3PPPgLSNJLhK8R1oFxMDL4BfMcrbtKSNTtw PGGLUXeO/uZqERCw== To: Thomas Pfaff , Greg Kroah-Hartman , Jiri Slaby Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] tty: Remove pointless synchronize_irq() in uart_port_shutdown() In-Reply-To: <4fe2d4a1-fc6a-c7fa-d884-5ebd01bebd3@pcs.com> References: <4fe2d4a1-fc6a-c7fa-d884-5ebd01bebd3@pcs.com> Date: Tue, 10 May 2022 19:44:44 +0200 Message-ID: <87czglp9ir.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 10 2022 at 15:54, Thomas Pfaff wrote: > From: Thomas Pfaff > > Calling synchronize_irq() after free_irq() is pointless, the context to > the irq is already lost. > It was noticed while creating the bugfix "genirq: Synchronize interrupt > thread startup". > > Signed-off-by: Thomas Pfaff Reviewed-by: Thomas Gleixner