From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yinghai Lu Subject: [PATCH 4/8] PCI, ACPI: assign unassigned resource for hot add root bus Date: Tue, 30 Oct 2012 10:42:41 -0700 Message-ID: <1351618965-16761-5-git-send-email-yinghai@kernel.org> References: <20121030040237.GA10472@google.com> <1351618965-16761-1-git-send-email-yinghai@kernel.org> Return-path: In-Reply-To: <1351618965-16761-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org To: Bjorn Helgaas , Len Brown , Taku Izumi , Jiang Liu Cc: linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu List-Id: linux-acpi@vger.kernel.org After we get hot-added ioapic registered. pci_enable_bridges will try to enable ioapic irq for pci bridges. Signed-off-by: Yinghai Lu --- drivers/acpi/pci_root.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index bce469c..27adbfd 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -644,12 +644,19 @@ static int acpi_pci_root_start(struct acpi_device *device) struct acpi_pci_root *root = acpi_driver_data(device); struct acpi_pci_driver *driver; + if (system_state != SYSTEM_BOOTING) + pci_assign_unassigned_bus_resources(root->bus); + mutex_lock(&acpi_pci_root_lock); list_for_each_entry(driver, &acpi_pci_drivers, node) if (driver->add) driver->add(root); mutex_unlock(&acpi_pci_root_lock); + /* need to after hot-added ioapic is registered */ + if (system_state != SYSTEM_BOOTING) + pci_enable_bridges(root->bus); + pci_bus_add_devices(root->bus); return 0; -- 1.7.7