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Message-Id: <1348583370-11006-4-git-send-email-jiang.liu@huawei.com>
Date: Tue, 25 Sep 2012 22:29:27 +0800
From: Jiang Liu <liuj97@...il.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Jiang Liu <jiang.liu@...wei.com>, Yinghai Lu <yinghai@...nel.org>,
Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
Yijing Wang <wangyijing@...wei.com>,
Jiang Liu <liuj97@...il.com>, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org
Subject: [PATCH v3 4/7] ACPI/pci-bind: remove bind/unbind callbacks from acpi_device_ops
From: Jiang Liu <jiang.liu@...wei.com>
Now ACPI devices are created before/destroyed after corresponding PCI
devices, and acpi_platform_notify/acpi_platform_notify_remove will
update PCI<->ACPI binding relationship when creating/destroying PCI
devices, there's no need to invoke bind/unbind callbacks from ACPI
device probe/destroy routines anymore. So remove bind/unbind callbacks
from acpi_device_ops.
Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
Signed-off-by: Yijing Wang <wangyijing@...wei.com>
Reviewed-by: Yinghai Lu <yinghai@...nel.org>
---
drivers/acpi/pci_bind.c | 95 ++++++++++---------------------------------
drivers/acpi/pci_root.c | 9 ----
drivers/acpi/scan.c | 21 +---------
include/acpi/acpi_bus.h | 4 --
include/acpi/acpi_drivers.h | 1 -
5 files changed, 23 insertions(+), 107 deletions(-)
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 66c5f4a..aac7f9a 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -35,58 +35,33 @@
#define _COMPONENT ACPI_PCI_COMPONENT
ACPI_MODULE_NAME("pci_bind");
-static int acpi_pci_bind_cb(struct acpi_device *acpi_dev);
-
static int acpi_pci_unbind(struct acpi_device *acpi_dev, struct pci_dev *dev)
{
- device_set_run_wake(&dev->dev, false);
- pci_acpi_remove_pm_notifier(acpi_dev);
+ if (acpi_dev) {
+ device_set_run_wake(&dev->dev, false);
+ pci_acpi_remove_pm_notifier(acpi_dev);
+ }
- if (dev->subordinate) {
+ if (dev->subordinate)
acpi_pci_irq_del_prt(dev->subordinate);
- acpi_dev->ops.bind = NULL;
- acpi_dev->ops.unbind = NULL;
- }
return 0;
}
-static int acpi_pci_unbind_cb(struct acpi_device *acpi_dev)
-{
- int rc = 0;
- struct pci_dev *dev;
-
- dev = acpi_get_pci_dev(acpi_dev->handle);
- if (dev) {
- rc = acpi_pci_unbind(acpi_dev, dev);
- pci_dev_put(dev);
- }
-
- return rc;
-}
-
static int acpi_pci_bind(struct acpi_device *acpi_dev, struct pci_dev *dev)
{
acpi_status status;
- acpi_handle tmp_hdl;
struct pci_bus *bus;
+ acpi_handle tmp_hdl;
+ acpi_handle handle;
- pci_acpi_add_pm_notifier(acpi_dev, dev);
- if (acpi_dev->wakeup.flags.run_wake)
- device_set_run_wake(&dev->dev, true);
-
- /*
- * Install the 'bind' function to facilitate callbacks for
- * children of the P2P bridge.
- */
- if (dev->subordinate) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %04x:%02x:%02x.%d is a PCI bridge\n",
- pci_domain_nr(dev->bus), dev->bus->number,
- PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)));
- acpi_dev->ops.bind = acpi_pci_bind_cb;
- acpi_dev->ops.unbind = acpi_pci_unbind_cb;
- }
+ if (acpi_dev) {
+ pci_acpi_add_pm_notifier(acpi_dev, dev);
+ if (acpi_dev->wakeup.flags.run_wake)
+ device_set_run_wake(&dev->dev, true);
+ handle = acpi_dev->handle;
+ } else
+ handle = DEVICE_ACPI_HANDLE(&dev->dev);
/*
* Evaluate and parse _PRT, if exists. This code allows parsing of
@@ -96,53 +71,25 @@ static int acpi_pci_bind(struct acpi_device *acpi_dev, struct pci_dev *dev)
*
* TBD: Can _PRTs exist within the scope of non-bridge PCI devices?
*/
- status = acpi_get_handle(acpi_dev->handle, METHOD_NAME__PRT, &tmp_hdl);
+ status = acpi_get_handle(handle, METHOD_NAME__PRT, &tmp_hdl);
if (ACPI_SUCCESS(status)) {
if (dev->subordinate)
bus = dev->subordinate;
else
bus = dev->bus;
- acpi_pci_irq_add_prt(acpi_dev->handle, bus);
- }
-
- return 0;
-}
-
-static int acpi_pci_bind_cb(struct acpi_device *acpi_dev)
-{
- int rc = 0;
- struct pci_dev *dev;
-
- dev = acpi_get_pci_dev(acpi_dev->handle);
- if (dev) {
- rc = acpi_pci_bind(acpi_dev, dev);
- pci_dev_put(dev);
+ acpi_pci_irq_add_prt(handle, bus);
}
- return rc;
-}
-
-int acpi_pci_bind_root(struct acpi_device *acpi_dev)
-{
- acpi_dev->ops.bind = acpi_pci_bind_cb;
- acpi_dev->ops.unbind = acpi_pci_unbind_cb;
-
return 0;
}
void acpi_pci_bind_notify(struct acpi_device *acpi_dev, struct device *dev,
bool bind)
{
- if (!dev_is_pci(dev))
- return;
-
- if (acpi_dev && acpi_dev->parent) {
- if (bind) {
- if (acpi_dev->parent->ops.bind)
- acpi_pci_bind(acpi_dev, to_pci_dev(dev));
- } else {
- if (acpi_dev->parent->ops.unbind)
- acpi_pci_unbind(acpi_dev, to_pci_dev(dev));
- }
+ if (dev_is_pci(dev)) {
+ if (bind)
+ acpi_pci_bind(acpi_dev, to_pci_dev(dev));
+ else
+ acpi_pci_unbind(acpi_dev, to_pci_dev(dev));
}
}
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7509034..25d8ad4 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -505,15 +505,6 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
/* TBD: Locking */
list_add_tail(&root->node, &acpi_pci_roots);
- /*
- * Attach ACPI-PCI Context
- * -----------------------
- * Thus binding the ACPI and PCI devices.
- */
- result = acpi_pci_bind_root(device);
- if (result)
- goto end;
-
printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
acpi_device_name(device), acpi_device_bid(device),
root->segment, &root->secondary);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d1ecca2..f31cb2f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1232,17 +1232,8 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
device_release_driver(&dev->dev);
- if (!rmdevice)
- return 0;
-
- /*
- * unbind _ADR-Based Devices when hot removal
- */
- if (dev->flags.bus_address) {
- if ((dev->parent) && (dev->parent->ops.unbind))
- dev->parent->ops.unbind(dev);
- }
- acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
+ if (rmdevice)
+ acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
return 0;
}
@@ -1319,14 +1310,6 @@ static int acpi_add_single_object(struct acpi_device **child,
result = acpi_device_register(device);
- /*
- * Bind _ADR-Based Devices when hot add
- */
- if (device->flags.bus_address) {
- if (device->parent && device->parent->ops.bind)
- device->parent->ops.bind(device);
- }
-
end:
if (!result) {
acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index bde976e..ef5babf 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -120,8 +120,6 @@ struct acpi_device;
typedef int (*acpi_op_add) (struct acpi_device * device);
typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
typedef int (*acpi_op_start) (struct acpi_device * device);
-typedef int (*acpi_op_bind) (struct acpi_device * device);
-typedef int (*acpi_op_unbind) (struct acpi_device * device);
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
struct acpi_bus_ops {
@@ -133,8 +131,6 @@ struct acpi_device_ops {
acpi_op_add add;
acpi_op_remove remove;
acpi_op_start start;
- acpi_op_bind bind;
- acpi_op_unbind unbind;
acpi_op_notify notify;
};
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index bb145e4..fb1c0d5 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -100,7 +100,6 @@ void acpi_pci_irq_del_prt(struct pci_bus *bus);
struct pci_bus;
struct pci_dev *acpi_get_pci_dev(acpi_handle);
-int acpi_pci_bind_root(struct acpi_device *device);
/* Arch-defined function to add a bus to the system */
--
1.7.9.5
--
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