From patchwork Fri Jan 11 22:40:43 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 1968001 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id A00F0DF2A2 for ; Fri, 11 Jan 2013 22:44:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756051Ab3AKWoU (ORCPT ); Fri, 11 Jan 2013 17:44:20 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:22862 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755895Ab3AKWlU (ORCPT ); Fri, 11 Jan 2013 17:41:20 -0500 Received: from ucsinet21.oracle.com (ucsinet21.oracle.com [156.151.31.93]) by userp1040.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id r0BMfCXC028271 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 11 Jan 2013 22:41:12 GMT Received: from acsmt358.oracle.com (acsmt358.oracle.com [141.146.40.158]) by ucsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r0BMfB6m003240 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 11 Jan 2013 22:41:12 GMT Received: from abhmt117.oracle.com (abhmt117.oracle.com [141.146.116.69]) by acsmt358.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id r0BMfBPK019140; Fri, 11 Jan 2013 16:41:11 -0600 Received: from linux-siqj.site (/10.132.126.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 11 Jan 2013 14:41:11 -0800 From: Yinghai Lu To: Bjorn Helgaas , "Rafael J. Wysocki" , Len Brown , Taku Izumi , Jiang Liu Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu Subject: [PATCH v8 16/22] PCI, acpiphp: Don't bailout even no slots found yet. Date: Fri, 11 Jan 2013 14:40:43 -0800 Message-Id: <1357944049-29620-17-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1357944049-29620-1-git-send-email-yinghai@kernel.org> References: <1357944049-29620-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Could have root bus hot addde later and there may be slots that need acpiphp. Signed-off-by: Yinghai Lu --- drivers/pci/hotplug/acpiphp.h | 1 - drivers/pci/hotplug/acpiphp_core.c | 23 ++--------------------- drivers/pci/hotplug/acpiphp_glue.c | 22 ---------------------- 3 files changed, 2 insertions(+), 44 deletions(-) diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index a1afb5b..b3ead7a 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -193,7 +193,6 @@ extern void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot); /* acpiphp_glue.c */ extern int acpiphp_glue_init (void); extern void acpiphp_glue_exit (void); -extern int acpiphp_get_num_slots (void); typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data); extern int acpiphp_enable_slot (struct acpiphp_slot *slot); diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c index 96316b7..c2fd309 100644 --- a/drivers/pci/hotplug/acpiphp_core.c +++ b/drivers/pci/hotplug/acpiphp_core.c @@ -50,7 +50,6 @@ bool acpiphp_debug; /* local variables */ -static int num_slots; static struct acpiphp_attention_info *attention_info; #define DRIVER_VERSION "0.5" @@ -272,25 +271,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) return 0; } -static int __init init_acpi(void) -{ - int retval; - - /* initialize internal data structure etc. */ - retval = acpiphp_glue_init(); - - /* read initial number of slots */ - if (!retval) { - num_slots = acpiphp_get_num_slots(); - if (num_slots == 0) { - acpiphp_glue_exit(); - retval = -ENODEV; - } - } - - return retval; -} - /** * release_slot - free up the memory used by a slot * @hotplug_slot: slot to free @@ -379,7 +359,8 @@ static int __init acpiphp_init(void) return 0; /* read all the ACPI info from the system */ - return init_acpi(); + /* initialize internal data structure etc. */ + return acpiphp_glue_init(); } diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 02c41ab..30467ec 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -1446,28 +1446,6 @@ void acpiphp_glue_exit(void) acpi_pci_unregister_driver(&acpi_pci_hp_driver); } - -/** - * acpiphp_get_num_slots - count number of slots in a system - */ -int __init acpiphp_get_num_slots(void) -{ - struct acpiphp_bridge *bridge; - int num_slots = 0; - - list_for_each_entry(bridge, &bridge_list, list) { - dbg("Bus %04x:%02x has %d slot%s\n", - pci_domain_nr(bridge->pci_bus), - bridge->pci_bus->number, bridge->nr_slots, - bridge->nr_slots == 1 ? "" : "s"); - num_slots += bridge->nr_slots; - } - - dbg("Total %d slots\n", num_slots); - return num_slots; -} - - /** * acpiphp_enable_slot - power on slot * @slot: ACPI PHP slot