Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp164660pxb; Wed, 20 Jan 2021 04:05:34 -0800 (PST) X-Google-Smtp-Source: ABdhPJwRtdPFrCAugczHK84KHl0AIHF4f5MfH6TFu9dSBWOVxFu9xiUh/JnCjipX4ZHftDdhjYtC X-Received: by 2002:a05:6402:1d86:: with SMTP id dk6mr7380053edb.126.1611144254368; Wed, 20 Jan 2021 04:04:14 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611144254; cv=none; d=google.com; s=arc-20160816; b=XVH7BYdK6cDdFktz5U0qkbdXePcNe0cDADRkppX7fIRriC/HBM4rWrouhzZM5v4K8B 6r2P1WqAPrkvVuH37oMn4xYkc/Yb7V7Ff4H2/TR5wRKJyl/QCm3Kwfb0VrttefziOC8H QmX8GhI+ei/okTuXmyQBARPYUskQiobTrrsYpJzflrNtSb9pdqaJWzd2x4KQ8P0imdSK 1M5npY0V5UP0cI0Nd++jzvIwX0xPLSQtC505jR27oLt5bgDo0SNOv95UGqeC1VX0xGr0 GFJpPLSJziTKxBld7RbRqYVDaZrKTW3ol8/ffK/3m71evuH2TF8f6KH+I/psaM39osHu R/fA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=rA6bdLKAlmIoLWUk8dCMAvfvN7Iy5mLs9O7w+8do8z8=; b=pZLeV08hsRrSSH/pToPXKmq+BV23jSwQYWCqPVOEqsG5rBF+Ys7xx2dY7OIIyYoWCf rtZuCWJqvk5E1HhWsu+a7Usu8wCtvMLXK8nn5TWr+hgGHRLoY0zpBNcaQe+wijDsTVAf 3LzYY7BwcCu/vmg0ysqhVM5zLN64asqSTEbT7fGpJOmkhpKXkzYq3VK2F991xkKTZxsM pprk0vDqZY6GW2wVA3/4BsJRHPrOkbXmwJyeX1zsm1hiGKxdIaz/3hftVi8afSpaK/en g+URSO+5cX3DQ5R+qC+FfMJArmIEmBR1rkUTi/Np5+yxpEJTNOMbNvo4DxBzFYjuYqKM t42A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@shutemov-name.20150623.gappssmtp.com header.s=20150623 header.b=hUIiRPln; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id w5si735997edd.350.2021.01.20.04.03.42; Wed, 20 Jan 2021 04:04:14 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@shutemov-name.20150623.gappssmtp.com header.s=20150623 header.b=hUIiRPln; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388307AbhATLoI (ORCPT + 99 others); Wed, 20 Jan 2021 06:44:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732958AbhATL1Y (ORCPT ); Wed, 20 Jan 2021 06:27:24 -0500 Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7E8CC061786 for ; Wed, 20 Jan 2021 03:26:42 -0800 (PST) Received: by mail-lj1-x234.google.com with SMTP id i17so499076ljn.1 for ; Wed, 20 Jan 2021 03:26:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=rA6bdLKAlmIoLWUk8dCMAvfvN7Iy5mLs9O7w+8do8z8=; b=hUIiRPlnMeeaTktx9TiA8UFdRaSKm6zh4+y0j9kDeNHP8TdZPrstvxTNIJydx3b3rk laCm9uscm9uZlNF+jgD9LxV234ABWDAqEJwDD3sYViomVYIACHg5ywtJBI2OOLJvja5V 5ZQj1utqaWnS+NOXIbmT0DGsJ7HgKMLkiZlTG9xVwLg6a8dUgChg6WGgTR/sGcPf3cwf Clv4SaBcGsAmSQ9zVOKQY0v5ZMbPeMnTvpzmVAXJAwuEJwGmL+kmqqK7n0ySEuuvvmK6 k7W1CfEpdhfGc8BNtERIX75nlK0Yu/vY54bSxpx7JrQntZIiDyMbNBbsve/ZKNsRxDeh Sx0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=rA6bdLKAlmIoLWUk8dCMAvfvN7Iy5mLs9O7w+8do8z8=; b=hdkOAmTYIxicjMR7o6HvbUryvLtYHShEc5LVDxLCCdChlg2bkD86f7upF0gFPybuUr Z7OBmZAGy5SCYHzqIuekSk+pXtcD3R9KjIiIdyBs77p3j9748VN16wOckZTLj9Bnro5t bw0KlOoWU3vWdltELlRQGJ6BwNZDWekm528aovFRyptKjzb3+hjus5KmFZMBX9tS2ufI G+x2RgdwmBdxaaoZiSux8Zq4lJBVbS8uwXU9gAcm9P2gyH6SsZH/iYl7Lk1V46yfAdHe G9m+rSDEFIhb0mTcib/ulj3K5GUB/BaLHPPZEWLJFJzT/XoQEUV2nxhKHT++25ynOD6n nQeQ== X-Gm-Message-State: AOAM532gCLS7Cx1s2iipy/kHqNjUJnc1ep6+VQVrxe5dfCVYavGPxAEg 1cvntiRNJwNwCQuUZkApRJm4eQ== X-Received: by 2002:a2e:b1d2:: with SMTP id e18mr4163694lja.101.1611142001496; Wed, 20 Jan 2021 03:26:41 -0800 (PST) Received: from box.localdomain ([86.57.175.117]) by smtp.gmail.com with ESMTPSA id 189sm172195lfj.192.2021.01.20.03.26.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 03:26:40 -0800 (PST) Received: by box.localdomain (Postfix, from userid 1000) id 4462C101448; Wed, 20 Jan 2021 14:26:43 +0300 (+03) Date: Wed, 20 Jan 2021 14:26:43 +0300 From: "Kirill A. Shutemov" To: Arvind Sankar Cc: Borislav Petkov , Ard Biesheuvel , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , X86 ML , Nathan Chancellor , Nick Desaulniers , Arnd Bergmann , Darren Hart , Andy Shevchenko , "H. Peter Anvin" , linux-efi , platform-driver-x86@vger.kernel.org, Linux Kernel Mailing List , clang-built-linux , "Kirill A. Shutemov" Subject: Re: [PATCH] x86: efi: avoid BUILD_BUG_ON() for non-constant p4d_index Message-ID: <20210120112643.ozlsru67yuur323i@box> References: <20210107223424.4135538-1-arnd@kernel.org> <20210118202409.GG30090@zn.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 18, 2021 at 04:42:20PM -0500, Arvind Sankar wrote: > AFAICT, MODULES_END is only relevant as being something that happens to > be in the top 512GiB, and -1ul would be clearer. I think you are right. But -1UL is not very self-descriptive. :/ -- Kirill A. Shutemov