From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754007AbcGaPfB (ORCPT ); Sun, 31 Jul 2016 11:35:01 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:35658 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753684AbcGaPer (ORCPT ); Sun, 31 Jul 2016 11:34:47 -0400 From: Cristina Moraru To: linux-kernel@vger.kernel.org Cc: mcgrof@kernel.org, teg@jklm.no, kay@vrfy.org, rusty@rustcorp.com.au, akpm@linux-foundation.org, Cristina Moraru Subject: [RFC PATCH 1/3] Add kconfig_symbol attribute to struct module Date: Sun, 31 Jul 2016 17:33:50 +0200 Message-Id: <1469979232-15531-2-git-send-email-cristina.moraru09@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1469979232-15531-1-git-send-email-cristina.moraru09@gmail.com> References: <1469979232-15531-1-git-send-email-cristina.moraru09@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Create additional attribute in struct module in order for each module to store its associate kconfig CONFIG_* symbol. The goal is to enable each module to expose in /sys its corresponding CONFIG_* option. The value of this attribute will be dynamically pegged by modpost without requiring extra work from the driver developers. Further, this information will be used by a hardware interogation tool to extract build information about the existent devices. This patch is part of a research project within Google Summer of Code of porting 'make localmodconfig' for backported drivers. Signed-off-by: Cristina Moraru --- include/linux/module.h | 1 + kernel/module.c | 1 + 2 files changed, 2 insertions(+) diff --git a/include/linux/module.h b/include/linux/module.h index 3daf2b3..bef5e44 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -353,6 +353,7 @@ struct module { struct module_attribute *modinfo_attrs; const char *version; const char *srcversion; + const char *kconfig_symbol; struct kobject *holders_dir; /* Exported symbols */ diff --git a/kernel/module.c b/kernel/module.c index 5f71aa6..4463c6c 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -757,6 +757,7 @@ static struct module_attribute modinfo_##field = { \ MODINFO_ATTR(version); MODINFO_ATTR(srcversion); +MODINFO_ATTR(kconfig_symbol); static char last_unloaded_module[MODULE_NAME_LEN+1]; -- 2.7.4