From patchwork Wed Nov 19 07:32:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 5334571 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 054A79F1E1 for ; Wed, 19 Nov 2014 06:52:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C9149201F5 for ; Wed, 19 Nov 2014 06:52:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5BCA520179 for ; Wed, 19 Nov 2014 06:52:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754480AbaKSGwM (ORCPT ); Wed, 19 Nov 2014 01:52:12 -0500 Received: from szxga02-in.huawei.com ([119.145.14.65]:52037 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754228AbaKSGwI (ORCPT ); Wed, 19 Nov 2014 01:52:08 -0500 Received: from 172.24.2.119 (EHLO szxeml450-hub.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CCO65275; Wed, 19 Nov 2014 14:51:58 +0800 (CST) Received: from localhost.localdomain (10.175.100.166) by szxeml450-hub.china.huawei.com (10.82.67.193) with Microsoft SMTP Server id 14.3.158.1; Wed, 19 Nov 2014 14:51:43 +0800 From: Yijing Wang To: Bjorn Helgaas CC: , , Russell King , , Thomas Gleixner , Tony Luck , , Liviu Dudau , Arnd Bergmann , Geert Uytterhoeven , Yijing Wang , , , , , Subject: [PATCH 5/5] PCI: Rip out pci_bus_add_devices() from pci_scan_root_bus() Date: Wed, 19 Nov 2014 15:32:49 +0800 Message-ID: <1416382369-13587-6-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1416382369-13587-1-git-send-email-wangyijing@huawei.com> References: <1416382369-13587-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Just like pci_scan_bus(), we also should rip out pci_bus_add_devices() from pci_scan_root_bus(). Lots platforms first call pci_scan_root_bus(), but after that, they call pci_bus_size_bridges() and pci_bus_assign_resources(). Place pci_bus_add_devices() in pci_scan_root_bus() hurts PCI scan logic. Should no functional change. Signed-off-by: Yijing Wang CC: linux-alpha@vger.kernel.org CC: linux-ia64@vger.kernel.org CC: linux-mips@linux-mips.org CC: linux-xtensa@linux-xtensa.org CC: linux-arm-kernel@lists.infradead.org CC: linux-sh@vger.kernel.org CC: sparclinux@vger.kernel.org --- arch/alpha/kernel/pci.c | 2 ++ arch/frv/mb93090-mb00/pci-vdk.c | 6 ++++-- arch/ia64/sn/kernel/io_init.c | 1 + arch/microblaze/pci/pci-common.c | 1 + arch/mips/pci/pci.c | 1 + arch/mn10300/unit-asb2305/pci.c | 5 ++++- arch/s390/pci/pci.c | 2 +- arch/sh/drivers/pci/pci.c | 1 + arch/sparc/kernel/leon_pci.c | 1 + arch/tile/kernel/pci.c | 2 ++ arch/tile/kernel/pci_gx.c | 2 ++ arch/x86/pci/common.c | 1 + arch/xtensa/kernel/pci.c | 2 ++ drivers/pci/host/pci-xgene.c | 1 + drivers/pci/probe.c | 1 - 15 files changed, 24 insertions(+), 5 deletions(-) diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 076c35c..97f9730 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -334,6 +334,8 @@ common_init_pci(void) bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, hose, &resources); + if (bus) + pci_bus_add_devices(bus); hose->bus = bus; hose->need_domain_info = need_domain_info; next_busno = bus->busn_res.end + 1; diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c index efa5d65..2b36044 100644 --- a/arch/frv/mb93090-mb00/pci-vdk.c +++ b/arch/frv/mb93090-mb00/pci-vdk.c @@ -316,6 +316,7 @@ void pcibios_fixup_bus(struct pci_bus *bus) int __init pcibios_init(void) { + struct pci_bus *bus; struct pci_ops *dir = NULL; LIST_HEAD(resources); @@ -383,12 +384,13 @@ int __init pcibios_init(void) printk("PCI: Probing PCI hardware\n"); pci_add_resource(&resources, &pci_ioport_resource); pci_add_resource(&resources, &pci_iomem_resource); - pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); + bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); pcibios_irq_init(); pcibios_fixup_irqs(); pcibios_resource_survey(); - + if (bus) + pci_bus_add_devices(bus); return 0; } diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 0b5ce82..63b43a6 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -272,6 +272,7 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) kfree(res); kfree(controller); } + pci_bus_add_devices(bus); } /* diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 9037914..651e25d 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1346,6 +1346,7 @@ static void pcibios_scan_phb(struct pci_controller *hose) hose->bus = bus; hose->last_busno = bus->busn_res.end; + pci_bus_add_devices(bus); } static int __init pcibios_init(void) diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 1bf60b1..f083688 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -113,6 +113,7 @@ static void pcibios_scanbus(struct pci_controller *hose) if (!pci_has_flag(PCI_PROBE_ONLY)) { pci_bus_size_bridges(bus); pci_bus_assign_resources(bus); + pci_bus_add_devices(bus); } } } diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c index 6b4339f..860aa35 100644 --- a/arch/mn10300/unit-asb2305/pci.c +++ b/arch/mn10300/unit-asb2305/pci.c @@ -345,6 +345,7 @@ void pcibios_fixup_bus(struct pci_bus *bus) */ static int __init pcibios_init(void) { + struct pci_bus *bus; resource_size_t io_offset, mem_offset; LIST_HEAD(resources); @@ -376,11 +377,13 @@ static int __init pcibios_init(void) pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset); pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset); - pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); + bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); pcibios_irq_init(); pcibios_fixup_irqs(); pcibios_resource_survey(); + if (bus) + pci_bus_add_devices(bus); return 0; } diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 552b990..98247f8 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -755,7 +755,7 @@ static int zpci_scan_bus(struct zpci_dev *zdev) zpci_cleanup_bus_resources(zdev); return -EIO; } - + pci_bus_add_devices(zdev->bus); zdev->bus->max_bus_speed = zdev->max_bus_speed; return 0; } diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 1bc09ee..efc1051 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -69,6 +69,7 @@ static void pcibios_scanbus(struct pci_channel *hose) pci_bus_size_bridges(bus); pci_bus_assign_resources(bus); + pci_bus_add_devices(bus); } else { pci_free_resource_list(&resources); } diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index 899b720..2971076 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -40,6 +40,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) /* Assign devices with resources */ pci_assign_unassigned_resources(); + pci_bus_add_devices(root_bus); } else { pci_free_resource_list(&resources); } diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 1f80a88..007466e 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -308,6 +308,8 @@ int __init pcibios_init(void) pci_add_resource(&resources, &iomem_resource); bus = pci_scan_root_bus(NULL, 0, controller->ops, controller, &resources); + if (bus) + pci_bus_add_devices(bus); controller->root_bus = bus; controller->last_busno = bus->busn_res.end; } diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c index e39f9c5..3f8fb2c 100644 --- a/arch/tile/kernel/pci_gx.c +++ b/arch/tile/kernel/pci_gx.c @@ -889,6 +889,8 @@ int __init pcibios_init(void) controller->first_busno = next_busno; bus = pci_scan_root_bus(NULL, next_busno, controller->ops, controller, &resources); + if (bus) + pci_bus_add_devices(bus); controller->root_bus = bus; next_busno = bus->busn_res.end + 1; } diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 7b20bcc..300d39e 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -475,6 +475,7 @@ void pcibios_scan_root(int busnum) pci_free_resource_list(&resources); kfree(sd); } + pci_bus_add_devices(bus); } void __init pcibios_set_cache_line_size(void) diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index 5b34033..f2ae64e 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -185,6 +185,8 @@ static int __init pcibios_init(void) pci_controller_apertures(pci_ctrl, &resources); bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, pci_ctrl->ops, pci_ctrl, &resources); + if (bus) + pci_bus_add_devices(bus); pci_ctrl->bus = bus; pci_ctrl->last_busno = bus->busn_res.end; if (next_busno <= pci_ctrl->last_busno) diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index 9ecabfa..c17afe5 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -635,6 +635,7 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev) if (!bus) return -ENOMEM; + pci_bus_add_devices(bus); platform_set_drvdata(pdev, port); return 0; } diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 79775b5..2ab5a40 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -2084,7 +2084,6 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, if (!found) pci_bus_update_busn_res_end(b, max); - pci_bus_add_devices(b); return b; } EXPORT_SYMBOL(pci_scan_root_bus);