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 2488FC433EF for ; Sat, 2 Jul 2022 04:45:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232086AbiGBEp2 (ORCPT ); Sat, 2 Jul 2022 00:45:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42024 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231967AbiGBEp0 (ORCPT ); Sat, 2 Jul 2022 00:45:26 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EA5C1EEF5 for ; Fri, 1 Jul 2022 21:45:24 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id bi22-20020a05600c3d9600b003a04de22ab6so2622231wmb.1 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=t7mi3yy5Bb+5p8twoToj9fm7lbmU9mDusARkLol1Xlw=; b=ToiJRwS6pHXrzSjSnTuHKxFVajRY6aXB/gVJWYYGBYlJVeHfqUGCP8/NkcNLu8aPzS yAOOvgYc22jh+Ikzs9ojVS618CJvQWW0Z97RwPq1uPsDJ/vycBrrF221lVSw4M6VXvq2 yU5nnT96ekMdJnLtnaRqL9+rkDomXR3MrVZv5/TxlrwecNu1Vzn5cRtMPwOcaazePNKB 2Oyw8LlGu+7F1aTYqbpryOS5nb1Mt/2ADKyvkMNtkbIGsSbO/Wa8T7I1DKhb19/Da22J YZT4avDTtiyl/qcvBs1tzvEdKsMGe183psRR69Vrl33yQGz4PQTulS3siqE8hMGdRuGe mtZg== 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=t7mi3yy5Bb+5p8twoToj9fm7lbmU9mDusARkLol1Xlw=; b=e4okM74TDAg2pewovt/uSqXoxsM1sn1Wusxp5gSPd0P+j7moZZsBXkwU+0xNYY6k1a RkUi8Mmcg3qRJnyw5bNruH+myY4+KXGMy5Y8A0v1+kQf87Sg2vl+WuVn8S/ju/xKwj5r 0o0JvbnrIaw0iW67ufgNXFm/wNAVoP6P+ZLVg2uqRtJMQy6IJdYLhBy9QrSiGHNuXKDk Zl4F9/DkV/gTTyNqm3nvss3vKuFWinx54r9NZeJoquuws9U/EYZE2W1Gtz4RB25pwKqf gpHs7eHaI7uYyDsADhKuTTc02iKZT1Vn0Jh2byJ0D9HapewnU81XkaoIa00bZ5pP+WzE 0Hxg== X-Gm-Message-State: AJIora+//2qbpOY55Er+BrfpGIZFKqtpndnjlWEI32i5My3TnJNi12Pb 4runTajwVSb1fsguCFVKLA5GVlZswbkuQ1Uckq7FjA== 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="000000000000b53f7605e2cb2bd3" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org --000000000000b53f7605e2cb2bd3 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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