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 04CBBCCA47C for ; Sat, 2 Jul 2022 04:45:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232079AbiGBEp2 (ORCPT ); Sat, 2 Jul 2022 00:45:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231985AbiGBEp0 (ORCPT ); Sat, 2 Jul 2022 00:45:26 -0400 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D1C920F70 for ; Fri, 1 Jul 2022 21:45:24 -0700 (PDT) Received: by mail-wm1-x32a.google.com with SMTP id l68so2377458wml.3 for ; Fri, 01 Jul 2022 21:45:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=9QUznk9CDtQUfHSvJwWyYyxggrlziRL1wWH9Qyntjes=; b=Z3yqNw5bty2PnRpfqBUpH8mBQplhZNpdUjGwTgGnoWVV69BNrv4qf/JiXrzcq53hIv qrEaV9LlzPafJlzbqbL4iRKlXwNvWZqfSVr8GAtN0e9HGuYAXTVZaa7vFztcCRpd6vvH YJVzRTpHj4DZCt+N2TbiaHcRzKCWAMR9R+Hfr6m3Yv8NPIaxxJZcD2Nx+LKKKw9CXfYr vUFzokpcpqgqMblaFSPoU0s6fYBsf7MgZ/8NA9Tf3qC4Xm79fFXNtQbfIlejLhaDTJTw Fm+XpuVSSRceUdFYYQ8HVDnGcsPATk62AhnIn6rnuF8R8/3cQsdrP0I+NcY1ZyPVgJH0 U/kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=9QUznk9CDtQUfHSvJwWyYyxggrlziRL1wWH9Qyntjes=; b=ApM7F/fJ3dzuoMeQeXQgSoJpY5Q5wtM1o1BLEQh2c3o6Yku4x7OW9uUJ4IEojWJuOT 6DJQx6zttXwWEddJvcZ/sG2E2HYFGU33NWLC0Pl9UtAjIIFFbwgOiIPvGfgF6xoQWjAN Izj2jHwnGncgiMPFxcntcmNYe6xIwomZTITIK9U7jPcqPw79F0iaGDte9X2Dd25myEal 66o0WJpljYvRb65uIx//fIaESLQpN7OqQnUl3H32FGn4QxlTMIxTEjiisfzdCO7vDOVd gzdiBC/663Dp670unyrZjiJLGf8F44BqUDYtvOIKj0DV3OUHoIBkBtf5smkAa0YMBbco 53wg== X-Gm-Message-State: AJIora9qIhWubC/2Akg7moA4suJXME0p0F32LItmvXjNQjyZ9GrJIQpa OYYjPa5UztliWeiuSW7P4SOH38fAd/LMIG7hCk7j+A== X-Google-Smtp-Source: AGRyM1tGijl82OhiA1sFnwORt2+qIpv+4fkfRv8eVyHlrNPW3B5mWZT8c68Tze0io1DNHJoLwaz7f9O0/Wy5pmlIPg0= X-Received: by 2002:a05:600c:34ce:b0:3a0:3b4b:9022 with SMTP id d14-20020a05600c34ce00b003a03b4b9022mr20217035wmq.66.1656737122786; Fri, 01 Jul 2022 21:45:22 -0700 (PDT) MIME-Version: 1.0 References: <20220702040959.3232874-1-davidgow@google.com> <20220702040959.3232874-2-davidgow@google.com> In-Reply-To: <20220702040959.3232874-2-davidgow@google.com> From: David Gow Date: Sat, 2 Jul 2022 12:45:11 +0800 Message-ID: Subject: Re: [PATCH v5 2/4] module: panic: Taint the kernel when selftest modules load To: Brendan Higgins , Andy Shevchenko , Jonathan Corbet , Andrew Morton , Kees Cook , Shuah Khan , Greg KH , Luis Chamberlain , Masahiro Yamada Cc: "Guilherme G . Piccoli" , Sebastian Reichel , John Ogness , Joe Fradley , Daniel Latypov , KUnit Development , "open list:KERNEL SELFTEST FRAMEWORK" , "open list:DOCUMENTATION" , Linux Kernel Mailing List , Jani Nikula , Lucas De Marchi , Aaron Tomlin , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, Michal Marek , Nick Desaulniers , Linux Kbuild mailing list Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000b5450b05e2cb2be3" Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org --000000000000b5450b05e2cb2be3 Content-Type: text/plain; charset="UTF-8" On Sat, Jul 2, 2022 at 12:10 PM David Gow wrote: > > Taint the kernel with TAINT_TEST whenever a test module loads, by adding > a new "TEST" module property, and setting it for all modules in the > tools/testing directory. This property can also be set manually, for > tests which live outside the tools/testing directory with: > MODULE_INFO(test, "Y"); > > Reviewed-by: Luis Chamberlain > Signed-off-by: David Gow > --- I forgot the changelogs here. The only significant difference from v4 is the change from pr_warn() to pr_warn_once(). Changes since v4: https://lore.kernel.org/linux-kselftest/20220701084744.3002019-2-davidgow@google.com/ - Use pr_warn_once() to only log a warning the first time a module taints the kernel with TAINT_TEST - Loading lots of test modules is a common usecase, and this would otherwise spam the logs too much. - Thanks Luis. - Remove a superfluous newline (Thanks Greg) - Add Luis' Reviewed-by tag. 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