From 059e4ba292c69cb400cda92fbd37f25d4eec564b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 24 Sep 2012 14:51:23 -0600 Subject: [PATCH] PCI/ACPI: Use DEVICE_ACPI_HANDLE rather than searching acpi_pci_roots When we bind a device to an ACPI handle, the handle is stored in dev->archdata.acpi_handle. For such devices, there's no need to search the acpi_pci_roots list with acpi_get_pci_rootbridge_handle(); we can just use DEVICE_ACPI_HANDLE(dev) directly. [bhelgaas: changelog, reorder "if" to avoid negation] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas Cc: Len Brown Cc: linux-acpi@vger.kernel.org --- include/linux/pci-acpi.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 248fba2af98a..9a22b5efb384 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -22,19 +22,24 @@ extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) { struct pci_bus *pbus = pdev->bus; + /* Find a PCI root bus */ while (!pci_is_root_bus(pbus)) pbus = pbus->parent; - return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus), - pbus->number); + + return DEVICE_ACPI_HANDLE(pbus->bridge); } static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus) { - if (!pci_is_root_bus(pbus)) - return DEVICE_ACPI_HANDLE(&(pbus->self->dev)); - return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus), - pbus->number); + struct device *dev; + + if (pci_is_root_bus(pbus)) + dev = pbus->bridge; + else + dev = &pbus->self->dev; + + return DEVICE_ACPI_HANDLE(dev); } #endif