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 X-Spam-Level: X-Spam-Status: No, score=-16.7 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 D8DD5C48BC2 for ; Thu, 24 Jun 2021 01:36:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3BBA6137D for ; Thu, 24 Jun 2021 01:36:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229759AbhFXBjQ (ORCPT ); Wed, 23 Jun 2021 21:39:16 -0400 Received: from mga17.intel.com ([192.55.52.151]:8652 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229930AbhFXBjP (ORCPT ); Wed, 23 Jun 2021 21:39:15 -0400 IronPort-SDR: Trn/a6TXtJHlb3MAVjjxsnSiI9wT4AGBVAfnIn20cCQ23ZoSPyEadgYnmvacAXkSv39dshyIsi 74GrJSna9FrA== X-IronPort-AV: E=McAfee;i="6200,9189,10024"; a="187756984" X-IronPort-AV: E=Sophos;i="5.83,295,1616482800"; d="scan'208";a="187756984" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2021 18:36:55 -0700 IronPort-SDR: fRKD1f4RaCC1K7hGgeS8GV+N/JRU7rBAyUkzR141Hn/ChHgXQjIuHc4qbE0hs27OLiKNrX0zTY 6KYtUZeOSvWw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,295,1616482800"; d="scan'208";a="490928468" Received: from otc-lr-04.jf.intel.com ([10.54.39.41]) by fmsmga002.fm.intel.com with ESMTP; 23 Jun 2021 18:36:52 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@redhat.com, linux-kernel@vger.kernel.org Cc: eranian@google.com, namhyung@kernel.org, acme@kernel.org, jolsa@redhat.com, ak@linux.intel.com, Kan Liang , gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com Subject: [PATCH 1/7] driver core: Add a way to get to bus devices kset Date: Wed, 23 Jun 2021 18:22:03 -0700 Message-Id: <1624497729-158864-2-git-send-email-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1624497729-158864-1-git-send-email-kan.liang@linux.intel.com> References: <1624497729-158864-1-git-send-email-kan.liang@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kan Liang Add an accessor function to get to the bus devices kset associated with a struct bus_type. The user of this is the following perf changes, which will need to get to the kobj of the 'devices' directory of a certain bus. Reviewed-by: Rafael J. Wysocki Signed-off-by: Kan Liang Cc: gregkh@linuxfoundation.org Cc: rafael.j.wysocki@intel.com --- drivers/base/bus.c | 6 ++++++ include/linux/device/bus.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 36d0c65..3d621a8 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -899,6 +899,12 @@ struct kset *bus_get_kset(struct bus_type *bus) } EXPORT_SYMBOL_GPL(bus_get_kset); +struct kset *bus_get_devices_kset(struct bus_type *bus) +{ + return bus->p->devices_kset; +} +EXPORT_SYMBOL_GPL(bus_get_devices_kset); + struct klist *bus_get_device_klist(struct bus_type *bus) { return &bus->p->klist_devices; diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index 1ea5e1d..0ab9273 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -283,6 +283,7 @@ extern int bus_unregister_notifier(struct bus_type *bus, #define BUS_NOTIFY_DRIVER_NOT_BOUND 0x00000008 /* driver fails to be bound */ extern struct kset *bus_get_kset(struct bus_type *bus); +extern struct kset *bus_get_devices_kset(struct bus_type *bus); extern struct klist *bus_get_device_klist(struct bus_type *bus); #endif -- 2.7.4