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Date: Wed, 27 Feb 2013 08:42:07 +0800
From: Jiang Liu <jiang.liu@...wei.com>
To: Yinghai Lu <yinghai@...nel.org>
CC: Jiang Liu <liuj97@...il.com>, Bjorn Helgaas <bhelgaas@...gle.com>,
"Rafael J . Wysocki" <rjw@...k.pl>,
Myron Stowe <myron.stowe@...hat.com>,
Yijing Wang <wangyijing@...wei.com>,
<linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
Toshi Kani <toshi.kani@...com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH v8 13/13] PCI, ACPI: remove support of ACPI PCI subdrivers
On 2013-2-27 3:07, Yinghai Lu wrote:
> On Tue, Feb 26, 2013 at 7:25 AM, Jiang Liu <liuj97@...il.com> wrote:
>> From: Myron Stowe <myron.stowe@...hat.com>
>>
>> Both sub-drivers of the "PCI Root Bridge ("pci_bridge")" driver, "acpiphp"
>> and "pci_slot", have been converted to hook directly into the PCI core.
>>
>> With the conversions there are no remaining usages of the 'struct
>> acpi_pci_driver' list based infrastructure. This patch removes it.
>>
>> Signed-off-by: Myron Stowe <myron.stowe@...hat.com>
>> Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
>> Cc: Yinghai Lu <yinghai@...nel.org>
>> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
>> Cc: Toshi Kani <toshi.kani@...com>
>> Cc: linux-pci@...r.kernel.org
>> Cc: linux-kernel@...r.kernel.org
>
> Nice cleanup!
>
> for 1-13,
> Reviewed-by: Yinghai Lu <yinghai@...nel.org>
HiYinghai,
Thanks for review!
Regards!
Gerry
>
> Thanks
>
> Yinghai
>
>> ---
>> drivers/acpi/pci_root.c | 48 +----------------------------------------------
>> include/linux/acpi.h | 9 ---------
>> 2 files changed, 1 insertion(+), 56 deletions(-)
>>
>> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
>> index 8b5a73b..2ef0c91 100644
>> --- a/drivers/acpi/pci_root.c
>> +++ b/drivers/acpi/pci_root.c
>> @@ -69,44 +69,12 @@ static struct acpi_driver acpi_pci_root_driver = {
>> },
>> };
>>
>> -/* Lock to protect both acpi_pci_roots and acpi_pci_drivers lists */
>> +/* Lock to protect both acpi_pci_roots lists */
>> static DEFINE_MUTEX(acpi_pci_root_lock);
>> static LIST_HEAD(acpi_pci_roots);
>> -static LIST_HEAD(acpi_pci_drivers);
>>
>> static DEFINE_MUTEX(osc_lock);
>>
>> -int acpi_pci_register_driver(struct acpi_pci_driver *driver)
>> -{
>> - int n = 0;
>> - struct acpi_pci_root *root;
>> -
>> - mutex_lock(&acpi_pci_root_lock);
>> - list_add_tail(&driver->node, &acpi_pci_drivers);
>> - if (driver->add)
>> - list_for_each_entry(root, &acpi_pci_roots, node) {
>> - driver->add(root);
>> - n++;
>> - }
>> - mutex_unlock(&acpi_pci_root_lock);
>> -
>> - return n;
>> -}
>> -EXPORT_SYMBOL(acpi_pci_register_driver);
>> -
>> -void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
>> -{
>> - struct acpi_pci_root *root;
>> -
>> - mutex_lock(&acpi_pci_root_lock);
>> - list_del(&driver->node);
>> - if (driver->remove)
>> - list_for_each_entry(root, &acpi_pci_roots, node)
>> - driver->remove(root);
>> - mutex_unlock(&acpi_pci_root_lock);
>> -}
>> -EXPORT_SYMBOL(acpi_pci_unregister_driver);
>> -
>> /**
>> * acpi_is_root_bridge - determine whether an ACPI CA node is a PCI root bridge
>> * @handle - the ACPI CA node in question.
>> @@ -416,7 +384,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
>> acpi_status status;
>> int result;
>> struct acpi_pci_root *root;
>> - struct acpi_pci_driver *driver;
>> u32 flags, base_flags;
>> bool is_osc_granted = false;
>>
>> @@ -576,12 +543,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
>> 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);
>> @@ -602,16 +563,9 @@ end:
>> static int acpi_pci_root_remove(struct acpi_device *device, int type)
>> {
>> struct acpi_pci_root *root = acpi_driver_data(device);
>> - struct acpi_pci_driver *driver;
>>
>> pci_stop_root_bus(root->bus);
>>
>> - mutex_lock(&acpi_pci_root_lock);
>> - list_for_each_entry_reverse(driver, &acpi_pci_drivers, node)
>> - if (driver->remove)
>> - driver->remove(root);
>> - mutex_unlock(&acpi_pci_root_lock);
>> -
>> device_set_run_wake(root->bus->bridge, false);
>> pci_acpi_remove_bus_pm_notifier(device);
>>
>> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
>> index 8c1d6f2..eeb5600 100644
>> --- a/include/linux/acpi.h
>> +++ b/include/linux/acpi.h
>> @@ -147,15 +147,6 @@ void acpi_penalize_isa_irq(int irq, int active);
>>
>> void acpi_pci_irq_disable (struct pci_dev *dev);
>>
>> -struct acpi_pci_driver {
>> - struct list_head node;
>> - int (*add)(struct acpi_pci_root *root);
>> - void (*remove)(struct acpi_pci_root *root);
>> -};
>> -
>> -int acpi_pci_register_driver(struct acpi_pci_driver *driver);
>> -void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
>> -
>> extern int ec_read(u8 addr, u8 *val);
>> extern int ec_write(u8 addr, u8 val);
>> extern int ec_transaction(u8 command,
>> --
>> 1.7.9.5
>>
>
> .
>
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