From patchwork Mon Jan 28 01:54:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 216098 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id E66632C0096 for ; Mon, 28 Jan 2013 12:54:34 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756567Ab3A1Bye (ORCPT ); Sun, 27 Jan 2013 20:54:34 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:42819 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756457Ab3A1Bye (ORCPT ); Sun, 27 Jan 2013 20:54:34 -0500 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by aserp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id r0S1sIM3014481 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 28 Jan 2013 01:54:19 GMT Received: from acsmt358.oracle.com (acsmt358.oracle.com [141.146.40.158]) by ucsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r0S1sGu4029218 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 28 Jan 2013 01:54:16 GMT Received: from abhmt112.oracle.com (abhmt112.oracle.com [141.146.116.64]) by acsmt358.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id r0S1sF56026915; Sun, 27 Jan 2013 19:54:15 -0600 Received: from linux-siqj.site (/75.36.251.60) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 27 Jan 2013 17:54:15 -0800 From: Yinghai Lu To: Bjorn Helgaas , Jiang Liu , "Rafael J. Wysocki" , Taku Izumi , Toshi Kani Cc: "Greg Kroah-Hartman" , Russell King , linux-pci@vger.kernel.org, Yinghai Lu Subject: [PATCH v3 21/22] PCI: Kill pci_find_next_bus Date: Sun, 27 Jan 2013 17:54:09 -0800 Message-Id: <1359338050-22735-4-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1359338050-22735-1-git-send-email-yinghai@kernel.org> References: <1359338050-22735-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org No user now, remove it. That name is misleading as it only for root buses. Signed-off-by: Yinghai Lu --- drivers/pci/search.c | 37 +++++++------------------------------ include/linux/pci.h | 4 ---- 2 files changed, 7 insertions(+), 34 deletions(-) diff --git a/drivers/pci/search.c b/drivers/pci/search.c index db0c3a9..329c533 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -79,44 +79,22 @@ static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr) */ struct pci_bus * pci_find_bus(int domain, int busnr) { - struct pci_bus *bus = NULL; + struct pci_host_bridge *host_bridge = NULL; struct pci_bus *tmp_bus; - while ((bus = pci_find_next_bus(bus)) != NULL) { - if (pci_domain_nr(bus) != domain) + for_each_pci_host_bridge(host_bridge) { + if (pci_domain_nr(host_bridge->bus) != domain) continue; - tmp_bus = pci_do_find_bus(bus, busnr); - if (tmp_bus) + tmp_bus = pci_do_find_bus(host_bridge->bus, busnr); + if (tmp_bus) { + put_device(&host_bridge->dev); return tmp_bus; + } } return NULL; } /** - * pci_find_next_bus - begin or continue searching for a PCI bus - * @from: Previous PCI bus found, or %NULL for new search. - * - * Iterates through the list of known PCI busses. A new search is - * initiated by passing %NULL as the @from argument. Otherwise if - * @from is not %NULL, searches continue from next device on the - * global list. - */ -struct pci_bus * -pci_find_next_bus(const struct pci_bus *from) -{ - struct list_head *n; - struct pci_bus *b = NULL; - - WARN_ON(in_interrupt()); - down_read(&pci_bus_sem); - n = from ? from->node.next : pci_root_buses.next; - if (n != &pci_root_buses) - b = pci_bus_b(n); - up_read(&pci_bus_sem); - return b; -} - -/** * pci_get_slot - locate PCI device for a given PCI slot * @bus: PCI bus on which desired PCI device resides * @devfn: encodes number of PCI slot in which the desired PCI @@ -356,7 +334,6 @@ EXPORT_SYMBOL(pci_dev_present); /* For boot time work */ EXPORT_SYMBOL(pci_find_bus); -EXPORT_SYMBOL(pci_find_next_bus); /* For everyone */ EXPORT_SYMBOL(pci_get_device); EXPORT_SYMBOL(pci_get_subsys); diff --git a/include/linux/pci.h b/include/linux/pci.h index 67879cb..bb07db2 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -763,7 +763,6 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap); int pci_find_next_ext_capability(struct pci_dev *dev, int pos, int cap); int pci_find_ht_capability(struct pci_dev *dev, int ht_cap); int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap); -struct pci_bus *pci_find_next_bus(const struct pci_bus *from); struct pci_host_bridge *pci_get_next_host_bridge(struct pci_host_bridge *from); struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, @@ -1404,9 +1403,6 @@ static inline int pci_block_cfg_access_in_atomic(struct pci_dev *dev) static inline void pci_unblock_cfg_access(struct pci_dev *dev) { } -static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from) -{ return NULL; } - static inline struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn) { return NULL; }