linux-kernel - [PATCH 23/40] PCI, ACPI: Pass device instead of handle when config root bridge

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Date:	Wed, 19 Sep 2012 11:54:37 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>, Len Brown <lenb@...nel.org>,
	Taku Izumi <izumi.taku@...fujitsu.com>,
	Jiang Liu <jiang.liu@...wei.com>, x86 <x86@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 23/40] PCI, ACPI: Pass device instead of handle when config root bridge

So we can avoid one calling of acpi_pci_find_root().

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 drivers/acpi/pci_root_hp.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/pci_root_hp.c b/drivers/acpi/pci_root_hp.c
index e07c31b..eb4344c 100644
--- a/drivers/acpi/pci_root_hp.c
+++ b/drivers/acpi/pci_root_hp.c
@@ -102,9 +102,9 @@ static void alloc_acpi_root_hp_work(acpi_handle handle, u32 type,
 }
 
 /* Program resources in newly inserted bridge */
-static void acpi_root_configure_bridge(acpi_handle handle)
+static void acpi_root_configure_bridge(struct acpi_device *device)
 {
-	struct acpi_pci_root *root = acpi_pci_find_root(handle);
+	struct acpi_pci_root *root = acpi_driver_data(device);
 
 	pcibios_resource_survey_bus(root->bus);
 	pci_assign_unassigned_bus_resources(root->bus);
@@ -138,7 +138,7 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 		printk(KERN_ERR "cannot add bridge to acpi list\n");
 		return;
 	}
-	acpi_root_configure_bridge(handle);
+	acpi_root_configure_bridge(device);
 	if (acpi_bus_start(device))
 		printk(KERN_ERR "cannot start bridge\n");
 }
-- 
1.7.7

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