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=-5.1 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 275B1C433E1 for ; Sun, 23 Aug 2020 23:05:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F2E4820724 for ; Sun, 23 Aug 2020 23:05:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598223928; bh=MT4hXiSC7bB81yIZ9jkCCwMmUeVSdfkfkly0vsYtmPU=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=FfrIh1dqDF0zS5FNqhxMqcCL5RvkaChQgzk+E0arH1nmvy59uAOp/Juc6I9Kb9NKM wV+LN/itMICRHD5FwaNwml7a89UcxBc52GwULpdiTIZVKUFYC7nliHUdCGke+91KeR aywDuI+ahNhIkgsi45LniW5c29sB4bsvzrCWAwZA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727040AbgHWXF0 (ORCPT ); Sun, 23 Aug 2020 19:05:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:37364 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726631AbgHWXFZ (ORCPT ); Sun, 23 Aug 2020 19:05:25 -0400 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B320E22B3F for ; Sun, 23 Aug 2020 23:05:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598223925; bh=MT4hXiSC7bB81yIZ9jkCCwMmUeVSdfkfkly0vsYtmPU=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=P75IuQ5hAYqoH15pniwwGB2pjnMfpNvP1nCJt7rlXAz/5OT/5RntYPqnDpxQiFplp ACocrfjHX0Y4olJJddRMi+P+Hvg3uq6RiUzENxgLMD7KQ9B8CeP/hW99QzUekIH7sp mnFTvoYyQ6RwbuOw3+2uruE/NBmS6txw3lM7QN9A= Received: by mail-wr1-f51.google.com with SMTP id c15so6861196wrs.11 for ; Sun, 23 Aug 2020 16:05:24 -0700 (PDT) X-Gm-Message-State: AOAM532q4bxUR0KkvIgzHKDA4ko5OJOVMqqMXtta5eFTaSwFoN6vXaB1 xbGTLW/iA0q94vb9C8fKNuYnbKH3o++fAia4JoaUUw== X-Google-Smtp-Source: ABdhPJw3YGuseiXCPiqboMP11UPr12JryRp1xwhFLf/rVOMZP43mBgZCkm3+cDcQJewT9khUZ1LhWQMbkvdU5g26J2Y= X-Received: by 2002:adf:9283:: with SMTP id 3mr3110796wrn.70.1598223923309; Sun, 23 Aug 2020 16:05:23 -0700 (PDT) MIME-Version: 1.0 References: <20200821093912.815135402@infradead.org> <20200821102052.969925934@infradead.org> In-Reply-To: <20200821102052.969925934@infradead.org> From: Andy Lutomirski Date: Sun, 23 Aug 2020 16:05:12 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 4/8] x86/debug: Remove handle_debug(.user) argument To: Peter Zijlstra Cc: X86 ML , LKML , Kyle Huey , Alexandre Chartre , "Robert O'Callahan" , "Paul E. McKenney" , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Andy Lutomirski , Josh Poimboeuf , Daniel Thompson Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 21, 2020 at 3:21 AM Peter Zijlstra wrote: > > The handle_debug(.user) argument is used to terminate the #DB handler > early for the INT1-from-kernel case, since the kernel doesn't use > INT1. > > Remove the argument and handle this explicitly in #DB-from-kernel. Acked-by: Andy Lutomirski