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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 21E84C64E8A for ; Tue, 1 Dec 2020 17:29:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA1C721D7A for ; Tue, 1 Dec 2020 17:29:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="cWQpemZ9"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Nux9htAO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730909AbgLAR2x (ORCPT ); Tue, 1 Dec 2020 12:28:53 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:56782 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727826AbgLAR2x (ORCPT ); Tue, 1 Dec 2020 12:28:53 -0500 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606843691; 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=27ELMoHJXn3b8+hiqsrg9icIzbuPOs5y3FOlQUsqIB4=; b=cWQpemZ9a8kYbaab9vBsrF70DINP/sl7/f536Z967AZUolItnvqS+Rna1p+C+P4ZuzA2RV nMcN9Vk7VL3DkpMeX6IKyDSIoy4XrmQRr8MqSSkNek4YQVmJn/BB3cVfkWENovAqEiaZVd TGsAaj0/Dbejlotam3E50tZlCu2cANP0dgfvu/2BPoM9E1A152PyIv2piLVPI01TpxtpGd 7PLg3aKf7+EigclyQn5WNC0JOyLrHKUqrKrIdwyqlglFTyl+kFJoNF3BEYvsNhfLcYvLAT 6c2Zs+sHe17eErelFMTtQDoDWk+fxyQ46zNIJI3n7xin7+9ZqV/n7hJZKKeZcQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606843691; 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=27ELMoHJXn3b8+hiqsrg9icIzbuPOs5y3FOlQUsqIB4=; b=Nux9htAOFg3I46sIoyYEyXO8aK0gYSHbKoJ1s9kXYsRo4VvFd/2RkgaLkF9b1UceOUt6Fc MWQAmeay6zHUoRAg== To: John Garry , jejb@linux.ibm.com, martin.petersen@oracle.com, lenb@kernel.org, rjw@rjwysocki.net, gregkh@linuxfoundation.org, maz@kernel.org Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linuxarm@huawei.com, linux-acpi@vger.kernel.org, dwagner@suse.de Subject: Re: [PATCH v4 1/5] genirq/affinity: Add irq_update_affinity_desc() In-Reply-To: <22315d74-0696-85ef-882c-85961cfb4f32@huawei.com> References: <1606757759-6076-1-git-send-email-john.garry@huawei.com> <1606757759-6076-2-git-send-email-john.garry@huawei.com> <87y2iih1pv.fsf@nanos.tec.linutronix.de> <22315d74-0696-85ef-882c-85961cfb4f32@huawei.com> Date: Tue, 01 Dec 2020 18:28:10 +0100 Message-ID: <87pn3tfnbp.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 01 2020 at 15:22, John Garry wrote: > /* > * There are certain limitations on when it may be used - attempts to > use it for when the kernel is configured for generic IRQ reservation > mode (in config GENERIC_IRQ_RESERVATION_MODE) will fail, as it may > conflict with managed/non-managed interrupt accounting. In addition, > attempts to use it on an interrupt which is already started or which has > already been configured as managed will also fail, as these mean invalid > init state or double init. > > ... > > Let me know if not good, if not I'll post again soon. LGTM