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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C4B6010987A2 for ; Fri, 20 Mar 2026 16:17:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To :Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0DMysUyCKw0otyFT/nci6R5IeD3beJ0jMK2AHwZg6Js=; b=oX8ULa0z0pREl3A/zrI0BQMGOD 6gshaBdHyaa9QsRkE2tkxLjvp/t+4V5kjEIrN+nPz1313RBt1grYFuDjmzQdmudX98jDdq3kBAovd 5HJTNhqFipCczaYrFgPVlIpb4sTDecIlubiO8nVFKerzsp6wDrPoSabiOTrawpMaSLWccQI/W+zHA PYZCdv0RvcPzRYYbdZTM+vq/az8HMURI4y+hR+j146knAbSX1FMUDJ+w7SafNuLYxkvKruI6FVq3C r4K2fw1XvTbteSGjT0E87bZCIHlEFy5ODx2OPKwNiACpCOSNyFBWzEz41VOdB18KvfdAMc8yf0pfv Sutl8W2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3cX6-0000000D6kx-2WPP; Fri, 20 Mar 2026 16:17:08 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3cX2-0000000D6kW-2UCD for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2026 16:17:06 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E8C61165C; Fri, 20 Mar 2026 09:16:56 -0700 (PDT) Received: from J2N7QTR9R3.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 679433F7BD; Fri, 20 Mar 2026 09:17:01 -0700 (PDT) Date: Fri, 20 Mar 2026 16:16:59 +0000 From: Mark Rutland To: Peter Zijlstra Subject: Re: [PATCH 1/2] arm64/entry: Fix involuntary preemption exception masking Message-ID: References: <20260320113026.3219620-1-mark.rutland@arm.com> <20260320113026.3219620-2-mark.rutland@arm.com> <20260320130433.GV3738786@noisy.programming.kicks-ass.net> <87h5qak2uv.ffs@tglx> <20260320153421.GM2872@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260320153421.GM2872@noisy.programming.kicks-ass.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260320_091705_618746_3AC22F09 X-CRM114-Status: GOOD ( 11.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vladimir.murzin@arm.com, catalin.marinas@arm.com, ruanjinjie@huawei.com, linux-kernel@vger.kernel.org, Thomas Gleixner , luto@kernel.org, will@kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Mar 20, 2026 at 04:34:21PM +0100, Peter Zijlstra wrote: > On Fri, Mar 20, 2026 at 02:57:37PM +0000, Mark Rutland wrote: > > > I know that arm64 currently uses exit_to_user_mode_prepare_legacy(), and > > I want to go clean that up too. :) > > This series; and this patch in particular: > > https://lkml.kernel.org/r/20260320102620.1336796-10-ruanjinjie@huawei.com > > seem to already take care of that. Sure, and Jinjie's patch might be the right option. I'd like to fix the irqentry stuff as a whle *before* we convert the syscall stuff, so that we're not just creating more work for ourselves. Mark.