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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 F0F57C64E7D for ; Tue, 24 Nov 2020 16:56:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DED8206F9 for ; Tue, 24 Nov 2020 16:56:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="F3xY49qw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390683AbgKXQ4X (ORCPT ); Tue, 24 Nov 2020 11:56:23 -0500 Received: from mail.kernel.org ([198.145.29.99]:57900 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729093AbgKXQ4W (ORCPT ); Tue, 24 Nov 2020 11:56:22 -0500 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (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 E3EF9206D8; Tue, 24 Nov 2020 16:56:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1606236982; bh=tLrka8nxaKUEtt9+F6qlTOzBV2bzpNmC5eWDUQqTESc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=F3xY49qwcv1JZpU9jG/Qld5skJ2Y7RozDs0g2qHZZ/YQiH4duUheMEqu0lgACMrcn KupzQRhzAPlT82Uj9mgO1Q6mJCJe/2StBJur3tkvJzcJu6j5CMHmBnaf9ELgXQvTGI TIA1gLSC6eyqug4LCI6JSITfZRNONlziYBz553lc= Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1khbc3-00DJCV-PE; Tue, 24 Nov 2020 16:56:20 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 24 Nov 2020 16:56:19 +0000 From: Marc Zyngier To: Peter Zijlstra Cc: LAK , linux-kernel , Will Deacon , Catalin Marinas , Thomas Gleixner , Valentin Schneider , Mark Rutland , Russell King , Android Kernel Team Subject: Re: [PATCH v2 2/6] genirq: Allow an interrupt to be marked as 'raw' In-Reply-To: <20201124162609.GK2414@hirez.programming.kicks-ass.net> References: <20201124141449.572446-1-maz@kernel.org> <20201124141449.572446-3-maz@kernel.org> <20201124162609.GK2414@hirez.programming.kicks-ass.net> User-Agent: Roundcube Webmail/1.4.9 Message-ID: <8235a7217b88bc0192eb387ee2be005d@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: peterz@infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, will@kernel.org, catalin.marinas@arm.com, tglx@linutronix.de, Valentin.Schneider@arm.com, mark.rutland@arm.com, linux@arm.linux.org.uk, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-11-24 16:26, Peter Zijlstra wrote: > On Tue, Nov 24, 2020 at 02:14:45PM +0000, Marc Zyngier wrote: >> Some interrupts (such as the rescheduling IPI) rely on not going >> through >> the irq_enter()/irq_exit() calls. To distinguish such interrupts, add >> a new IRQ flag that allows the low-level handling code to sidestep the >> enter()/exit() calls. > > Well, not quite. The scheduler_ipi() function is perfectly fine being > called with irq_enter/irq_exit. As per this very series, that's your > current reality. > > The function just doesn't need it. Yup, definitely a very bad choice of words here. /me goes and repaint the commit message. Thanks, M. -- Jazz is not dead. It just smells funny...