From patchwork Wed Aug 18 21:24:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas De Marchi X-Patchwork-Id: 12445391 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 90719C4320A for ; Wed, 18 Aug 2021 21:24:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 748CC610E5 for ; Wed, 18 Aug 2021 21:24:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234028AbhHRVZa (ORCPT ); Wed, 18 Aug 2021 17:25:30 -0400 Received: from mga03.intel.com ([134.134.136.65]:16751 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233896AbhHRVZa (ORCPT ); Wed, 18 Aug 2021 17:25:30 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10080"; a="216463458" X-IronPort-AV: E=Sophos;i="5.84,332,1620716400"; d="scan'208";a="216463458" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2021 14:24:54 -0700 X-IronPort-AV: E=Sophos;i="5.84,332,1620716400"; d="scan'208";a="531855762" Received: from lucas-s2600cw.jf.intel.com ([10.165.21.202]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2021 14:24:54 -0700 From: Lucas De Marchi To: linux-modules Cc: Michal Suchanek , Takashi Iwai , Petr Vorel , Lucas De Marchi Subject: [PATCH v2] libkmod: Set builtin to no when module is created from path. Date: Wed, 18 Aug 2021 14:24:39 -0700 Message-Id: <20210818212440.2224127-1-lucas.demarchi@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210818205159.6066-1-msuchanek@suse.de> References: <20210818205159.6066-1-msuchanek@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: From: Michal Suchanek A recent bug report showed that modinfo doesn't give the signature information for certain modules, and it turned out to happen only on the modules that are built-in on the running kernel; then modinfo skips the signature check, as if the target module file never exists. The behavior is, however, inconsistent when modinfo is performed for external modules (no matter which kernel version is) and the module file path is explicitly given by a command-line argument, which guarantees the presence of the module file itself. Fixes: e7e2cb61fa9f ("modinfo: Show information about built-in modules") Link: https://lore.kernel.org/linux-modules/CAKi4VAJVvY3=JdSZm-GD1hJqyCPYaYz-jBJ_REeY5BakVb6_ww@mail.gmail.com/ BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1189537 Suggested-by: Lucas De Marchi Signed-off-by: Michal Suchanek Reviewed-by: Petr Vorel --- libkmod/libkmod-module.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c index 6e0ff1a..6f7747c 100644 --- a/libkmod/libkmod-module.c +++ b/libkmod/libkmod-module.c @@ -431,17 +431,18 @@ KMOD_EXPORT int kmod_module_new_from_path(struct kmod_ctx *ctx, return -EEXIST; } - *mod = kmod_module_ref(m); - return 0; - } + kmod_module_ref(m); + } else { + err = kmod_module_new(ctx, name, name, namelen, NULL, 0, &m); + if (err < 0) { + free(abspath); + return err; + } - err = kmod_module_new(ctx, name, name, namelen, NULL, 0, &m); - if (err < 0) { - free(abspath); - return err; + m->path = abspath; } - m->path = abspath; + m->builtin = KMOD_MODULE_BUILTIN_NO; *mod = m; return 0;