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[2620:137:e000::1:20]) by mx.google.com with ESMTP id d5-20020a170902854500b001b34159f341si14841949plo.596.2023.06.18.14.15.40; Sun, 18 Jun 2023 14:15:52 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b="JQkMJx/c"; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=STOPmkG8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229663AbjFRU40 (ORCPT + 99 others); Sun, 18 Jun 2023 16:56:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229659AbjFRU4Z (ORCPT ); Sun, 18 Jun 2023 16:56:25 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 59E86123 for ; Sun, 18 Jun 2023 13:56:24 -0700 (PDT) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1687121482; 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=80zSDouk0Pz5PYDC8ofRBo/DLaYMErhK8kdE7HknteM=; b=JQkMJx/cKObx5SbKv6uQkN2aI1FDIg2TXsWysWRog1kXoIv1Ip+MEEJRoEcjjneNHQvPxU dDQguWjTgfiU5I9AZZsz1eW5LizXRxflEDFrpQ7vrQWxWA0BvQMQXYZVkVEXz9s5TP4+fy pdhbrET6fkEzCR/bQxuicYBwi/0TsAy8M05spG78kyPLoybRiCaeZGNFhl8+yDb7Xv/Zh+ X5lQkJ8Kotdlwrvs6VKoOkriy6UhuGcolK9TV3DCB4PPPlVT1nmJrRc3W89fia9wO3+O/C WGCEpXK+D+aG+B9rQdNW50pXWO7++MRT2JAe8gafUbUz+S24ljN9GMvDAjkUGg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1687121482; 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=80zSDouk0Pz5PYDC8ofRBo/DLaYMErhK8kdE7HknteM=; b=STOPmkG8Rs5PDxEN71jQH8KMhWbbD/KxPUMmDi55mq07Nr73dlVUvqbmSyatrnqqQVuPCO rxou/LqAHYZst3Dg== To: Nikolay Borisov , x86@kernel.org Cc: linux-kernel@vger.kernel.org, mhocko@suse.com, jslaby@suse.cz, Nikolay Borisov Subject: Re: [PATCH v3 2/5] x86/entry: Rename ignore_sysret In-Reply-To: <20230616125730.1164989-3-nik.borisov@suse.com> References: <20230616125730.1164989-1-nik.borisov@suse.com> <20230616125730.1164989-3-nik.borisov@suse.com> Date: Sun, 18 Jun 2023 22:51:22 +0200 Message-ID: <87sfaoqyt1.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 16 2023 at 15:57, Nikolay Borisov wrote: > Give ignore_sysret() a more descriptive name as it's actually used to make > 32bit syscalls return ENOSYS, rather than doing anything specific with That's not really correct. This is not about 32bit syscalls in general. It's specifically about the SYSCALL entry point on 32bit, right? The reason why this is required is because 32bit SYSCALL cannot be disabled in hardware. Thanks, tglx