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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A54FEE7F154 for ; Fri, 29 Sep 2023 21:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233807AbjI2VzH (ORCPT ); Fri, 29 Sep 2023 17:55:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233081AbjI2VzF (ORCPT ); Fri, 29 Sep 2023 17:55:05 -0400 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE1BE1B3 for ; Fri, 29 Sep 2023 14:55:02 -0700 (PDT) Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1c5ff5f858dso85968145ad.2 for ; Fri, 29 Sep 2023 14:55:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1696024502; x=1696629302; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=8kFisjx+D089Bl0n+c9sa0dcFrh55Nv3CjkrAPKvHaQ=; b=XPKNorQzWdiHhidzSTv6sPzxHcNeh7oqxFhbO98zA1CETZMkqUz2psX2XA2dGVDurF fMjoWNC2reY/ze60h2Fi9QVoalwvpaTriQ4ewUkpBFPK/Zg3K/xqBLLCxGlU09161MFM nm4z4rTd82k1yE55pKJcW9uWkNHIjv1dZ+7KU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696024502; x=1696629302; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=8kFisjx+D089Bl0n+c9sa0dcFrh55Nv3CjkrAPKvHaQ=; b=rbCrziYf6mvbHwG5BSugsrMHnDQ7NxTL5mYXZlkTZslCQw04k17GFdqUS7at/3Ic+X BPR9xDEcML4PFgTXOSJfxyk41CBp77GMpYPDhOV+da59cbumQU94W1/y7vcA/hVT9Oyr AbJM6HiXgy5Ej8BG9EB7zdxnaiChYPQHgnUuI2nZLozhKzoRNmCI0CH90+sgM/j7/rZX ovhKw+vKHOPdwnR+oMfvYwJL1mpkNByNBqwsVulxF+95+HnQr/7B0txurIQXLXSGe0yk VtW08AJsoQuakEYmogL949O6tnANkz7QGW6ORDbdt06D5v9rElCN2UpgAa6jwJnJWjLL +G7w== X-Gm-Message-State: AOJu0YwsTjNcQghLZX9joYMH0wvqniIAXPwAJZmisrGnqWxzIm2AYNk3 vRSLP8ILrjuhzL19TP955ceMr26yUTZfP2JThtc= X-Google-Smtp-Source: AGHT+IGnbAGwryCCvO6jabCBmevCmJ/0eVxJN4Y82GDsZjB3QfXDLV1KZNYrwCXcUGHGoTsq/uDbWQ== X-Received: by 2002:a17:902:ecd0:b0:1c0:c86a:5425 with SMTP id a16-20020a170902ecd000b001c0c86a5425mr6564288plh.19.1696024501806; Fri, 29 Sep 2023 14:55:01 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id l13-20020a170902f68d00b001b54d064a4bsm17338377plg.259.2023.09.29.14.55.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 14:55:01 -0700 (PDT) Date: Fri, 29 Sep 2023 14:55:00 -0700 From: Kees Cook To: Sami Tolvanen Cc: Paul Walmsley , Palmer Dabbelt , Albert Ou , Andrew Morton , linux-mm@kvack.org, linux-riscv@lists.infradead.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] mm: Change mmap_rnd_bits_max to __ro_after_init Message-ID: <202309291454.436E19663@keescook> References: <20230929211155.3910949-4-samitolvanen@google.com> <20230929211155.3910949-5-samitolvanen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230929211155.3910949-5-samitolvanen@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 29, 2023 at 09:11:57PM +0000, Sami Tolvanen wrote: > Allow mmap_rnd_bits_max to be updated on architectures that > determine virtual address space size at runtime instead of relying > on Kconfig options by changing it from const to __ro_after_init. > > Signed-off-by: Sami Tolvanen Just the kind of thing __ro_after_init was made for. :) Reviewed-by: Kees Cook -- Kees Cook