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 8CC43C369DC for ; Tue, 29 Apr 2025 15:26:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=nUlWML/fsXetNwxqvoOqkD0pz1cXL+R3ZbMDWiTp+MA=; b=Q21WwaMk78/d+rvG0dSrdxOkNU e3//irDxA3pgTsL9lxCwZpaqn3Hi7b4Tpj/RXhzkKa3P3DUGy754cmaxQEsv7fj1MesN+24U4J9bK BNPjht9OgzOUb3sIXvcAArArNx88EOCVzJxs+QWVAva6npSHE36dwCu1mmtjveLcJ0zPWmL1u+5oN 9XSP0IG7hyR9Wz6L1Mln58KfrfETEWf1UjFjpuG69csFkb+ku1V+2tP3QEAd+ogLfqZ228PJbCsru ffRFA8DV9Eslpyoe4wwOXe6jqfgzeL3+EjM5ERDDcejSS6u5+SV3qgpep0KgCaF41oZWbFnH6zll8 2ON7ePow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u9mrB-0000000A7i3-3k4G; Tue, 29 Apr 2025 15:26:49 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u9mV7-0000000A3Nm-2kmQ for linux-arm-kernel@lists.infradead.org; Tue, 29 Apr 2025 15:04:01 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 0E05761567; Tue, 29 Apr 2025 15:03:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8E5C4CEE3; Tue, 29 Apr 2025 15:03:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745939040; bh=07G9Y0+nqlY03fvr8srBQeJEfqq0mWj7H4qgzsSSMC0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=b2RSriF1PYemUlOEM4eytLR7EQokiggwNpQWL0brlA0py7t88h57IFIcL3nc5JPlr zCEIvgdOJeWphGywZ/RdE3vyNdiDgxakgkRvo8c5nD9A+l8FFq94QHjjT6CL3E7iQD +098om27DJSagNnfegkQWkf90HjK3jV2dh7n9xJvapwQSzFEtyQuLE3O+aKosQPIzQ PWsy1RFZv3tZbkoSWBEeBtLsfLMRcnP+abFPekl8OrQKHAU9m66tMiwhjoC1X6b8EX KL2W+7To5tAf31adc5+48VNfVCFm1h1z3tMqjdEWqeuGGTOIegkqrdycZSIQPOmxaN u4KpDbEcNoCrw== Date: Tue, 29 Apr 2025 16:03:54 +0100 From: Will Deacon To: Linus Walleij Cc: tglx@linutronix.de, ruanjinjie@huawei.com, catalin.marinas@arm.com, oleg@redhat.com, sstabellini@kernel.org, peterz@infradead.org, luto@kernel.org, linux-kernel@vger.kernel.org, arnd@arndb.de, paulmck@kernel.org, mingo@redhat.com, dietmar.eggemann@arm.com, linux-arm-kernel@lists.infradead.org, mark.rutland@arm.com, joey.gouly@arm.com, kevin.brodsky@arm.com, dave.martin@arm.com Subject: Re: [PATCH -next v6 1/8] entry: Split generic entry into generic exception and syscall entry Message-ID: <20250429150353.GA26272@willie-the-truck> References: <20250213130007.1418890-2-ruanjinjie@huawei.com> <20250320142612.396250-1-linus.walleij@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Apr 28, 2025 at 04:46:02PM +0200, Linus Walleij wrote: > Hi Thomas, > > On Thu, Mar 20, 2025 at 3:26 PM Linus Walleij wrote: > > > > Currently CONFIG_GENERIC_ENTRY enables both the generic exception > > > entry logic and the generic syscall entry logic, which are otherwise > > > loosely coupled. > > > > > > Introduce separate config options for these so that archtiectures can > > > select the two independently. This will make it easier for > > > architectures to migrate to generic entry code. > > > > > > Suggested-by: Mark Rutland > > > Signed-off-by: Jinjie Ruan > > > > If the generic entry maintainer (hi Thomas) thinks this patch is > > OK it would be nice to have it applied because it will also make > > the ARM32 transition to generic entry easier as we can work on > > exception and syscall entry each in isolation. > > > > Acked-by: Linus Walleij > > Do you think this patch is something you could queue on some > tip branch for v6.16? > > I don't know if either arm64 or arm32 is going anywhere with > generic entry for v6.16, but having this in-tree makes it easier > to split the task going forward. We can always pull it into some > branch or just wait for v6.16-rc1 to get this patch under our > patch stacks. Agreed, having the core part merged would be really helpful if possible. Cheers, Will