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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 B5269C11D04 for ; Thu, 20 Feb 2020 08:42:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D8E324656 for ; Thu, 20 Feb 2020 08:42:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582188122; bh=8040ipU19Whua9AEwBIO6II4ixMc8OOuUr42dSrJ2/U=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=O5c2+KG8nZy7E/4ChcTj0K8V5ODGTlK54waFus43wgV/0z8gx0dxXCZZNBKtEoQEz vWwRagPwDs5alB6UzM4uBtiBglvyhkzp8aQm1qpatsj0QfbEKmVF08PDLCi0GCFehx Q/8Z4vhrW05+GNFyuxkX2x9e+bumw77HIUBSYj1E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726882AbgBTImB (ORCPT ); Thu, 20 Feb 2020 03:42:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:46858 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726764AbgBTImB (ORCPT ); Thu, 20 Feb 2020 03:42:01 -0500 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 1E6E3207FD; Thu, 20 Feb 2020 08:41:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582188120; bh=8040ipU19Whua9AEwBIO6II4ixMc8OOuUr42dSrJ2/U=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=L973ugZPZxGg5Ed17eRAlWhoj6FPr7OSx9Gr2s4faK9Wv9JYh4ecB7AMCld3+a10M B6TUo3O33fza86PMtqjOnJogUgErRICABq5vlfJvjuD6Uyu8R04oC+JIv1UsSlIck2 uJedzCUrZ9cXVuD9KFDb19+3MR56Mzq5gAC6ZnD8= Date: Thu, 20 Feb 2020 08:41:53 +0000 From: Will Deacon To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, rostedt@goodmis.org, mingo@kernel.org, joel@joelfernandes.org, gregkh@linuxfoundation.org, gustavo@embeddedor.com, tglx@linutronix.de, paulmck@kernel.org, josh@joshtriplett.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, luto@kernel.org, tony.luck@intel.com, frederic@kernel.org, dan.carpenter@oracle.com, mhiramat@kernel.org, Marc Zyngier , Michael Ellerman , Petr Mladek Subject: Re: [PATCH v3 01/22] hardirq/nmi: Allow nested nmi_enter() Message-ID: <20200220084153.GA11827@willie-the-truck> References: <20200219144724.800607165@infradead.org> <20200219150744.428764577@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200219150744.428764577@infradead.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 19, 2020 at 03:47:25PM +0100, Peter Zijlstra wrote: > Since there are already a number of sites (ARM64, PowerPC) that > effectively nest nmi_enter(), lets make the primitive support this > before adding even more. > > Cc: Will Deacon > Cc: Marc Zyngier > Cc: Michael Ellerman > Cc: Petr Mladek > Signed-off-by: Peter Zijlstra (Intel) > --- > arch/arm64/include/asm/hardirq.h | 4 ++-- > arch/arm64/kernel/sdei.c | 14 ++------------ > arch/arm64/kernel/traps.c | 8 ++------ For these arm64 bits: Acked-by: Will Deacon Will