From: Bjorn Helgaas <bhelgaas@google.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Jiang Liu <liuj97@gmail.com>, Jiang Liu <jiang.liu@huawei.com>,
Yinghai Lu <yinghai@kernel.org>,
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>,
Yijing Wang <wangyijing@huawei.com>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Toshi Kani <toshi.kani@hp.com>,
Myron Stowe <myron.stowe@redhat.com>
Subject: Re: [RFC PATCH v5 4/8] ACPI, PCI: avoid building pci_slot as module
Date: Mon, 28 Jan 2013 14:09:22 -0700 [thread overview]
Message-ID: <CAErSpo4fbNzFaBxH+eKD+BKVgghyCJEYLDMzc6_gdxABAPe3QQ@mail.gmail.com> (raw)
In-Reply-To: <3500982.MUDp6kKU3R@vostro.rjw.lan>
On Sun, Jan 20, 2013 at 5:01 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Saturday, January 19, 2013 12:07:42 AM Jiang Liu wrote:
>> As discussed in thread at https://patchwork.kernel.org/patch/1946851/,
>> there's no value in supporting CONFIG_ACPI_PCI_SLOT=m any more.
>> So change Kconfig and code to only support building pci_slot as
>> built-in driver.
>>
>> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
I think we should eventually get rid of acpi_pci_register_driver() and
do this initialization directly from acpi_pci_root_add(). But
removing the module option here is a good first step.
Rafael, do you want to apply this (and [6/8]) via your tree? If not,
I can take it.
>> ---
>> drivers/acpi/Kconfig | 5 +----
>> drivers/acpi/internal.h | 5 +++++
>> drivers/acpi/pci_slot.c | 13 +------------
>> drivers/acpi/scan.c | 1 +
>> 4 files changed, 8 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index 0300bf6..7efd0d0 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -299,7 +299,7 @@ config ACPI_DEBUG_FUNC_TRACE
>> is about half of the penalty and is rarely useful.
>>
>> config ACPI_PCI_SLOT
>> - tristate "PCI slot detection driver"
>> + bool "PCI slot detection driver"
>> depends on SYSFS
>> default n
>> help
>> @@ -308,9 +308,6 @@ config ACPI_PCI_SLOT
>> i.e., segment/bus/device/function tuples, with physical slots in
>> the system. If you are unsure, say N.
>>
>> - To compile this driver as a module, choose M here:
>> - the module will be called pci_slot.
>> -
>> config X86_PM_TIMER
>> bool "Power Management Timer Support" if EXPERT
>> depends on X86
>> diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
>> index e050254..7374cfc 100644
>> --- a/drivers/acpi/internal.h
>> +++ b/drivers/acpi/internal.h
>> @@ -67,6 +67,11 @@ struct acpi_ec {
>>
>> extern struct acpi_ec *first_ec;
>>
>> +#ifdef CONFIG_ACPI_PCI_SLOT
>> +void acpi_pci_slot_init(void);
>> +#else
>> +static inline void acpi_pci_slot_init(void) { }
>> +#endif
>> int acpi_pci_root_init(void);
>> int acpi_ec_init(void);
>> int acpi_ec_ecdt_probe(void);
>> diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
>> index d22585f..a7d7e77 100644
>> --- a/drivers/acpi/pci_slot.c
>> +++ b/drivers/acpi/pci_slot.c
>> @@ -330,19 +330,8 @@ static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
>> {}
>> };
>>
>> -static int __init
>> -acpi_pci_slot_init(void)
>> +void __init acpi_pci_slot_init(void)
>> {
>> dmi_check_system(acpi_pci_slot_dmi_table);
>> acpi_pci_register_driver(&acpi_pci_slot_driver);
>> - return 0;
>> }
>> -
>> -static void __exit
>> -acpi_pci_slot_exit(void)
>> -{
>> - acpi_pci_unregister_driver(&acpi_pci_slot_driver);
>> -}
>> -
>> -module_init(acpi_pci_slot_init);
>> -module_exit(acpi_pci_slot_exit);
>> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
>> index f8a0d0f..cb964ac 100644
>> --- a/drivers/acpi/scan.c
>> +++ b/drivers/acpi/scan.c
>> @@ -1732,6 +1732,7 @@ int __init acpi_scan_init(void)
>>
>> acpi_power_init();
>> acpi_pci_root_init();
>> + acpi_pci_slot_init();
>>
>> /*
>> * Enumerate devices in the ACPI namespace.
>>
> --
> I speak only for myself.
> Rafael J. Wysocki, Intel Open Source Technology Center.
next prev parent reply other threads:[~2013-01-28 21:09 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-18 16:07 [RFC PATCH v5 0/8] introduce PCI bus notifier chain to get rid of the ACPI PCI subdriver interfaces Jiang Liu
2013-01-18 16:07 ` [RFC PATCH v5 1/8] PCI: make PCI device create/destroy logic symmetric Jiang Liu
2013-01-20 23:35 ` Rafael J. Wysocki
2013-01-18 16:07 ` [RFC PATCH v5 2/8] PCI: split registration of PCI bus devices into two stages Jiang Liu
2013-01-18 16:07 ` [RFC PATCH v5 3/8] PCI: add a blocking notifier chain for PCI bus addition/removal Jiang Liu
2013-01-20 23:54 ` Rafael J. Wysocki
2013-01-21 16:18 ` Jiang Liu
2013-01-21 22:46 ` Rafael J. Wysocki
2013-01-18 16:07 ` [RFC PATCH v5 4/8] ACPI, PCI: avoid building pci_slot as module Jiang Liu
2013-01-21 0:01 ` Rafael J. Wysocki
2013-01-28 21:09 ` Bjorn Helgaas [this message]
2013-01-28 21:29 ` Yinghai Lu
2013-01-28 21:52 ` Bjorn Helgaas
2013-01-28 22:00 ` Yinghai Lu
2013-01-28 22:14 ` Bjorn Helgaas
2013-01-28 22:58 ` Yinghai Lu
2013-01-29 2:07 ` Jiang Liu
2013-01-29 2:21 ` Yinghai Lu
2013-01-29 2:45 ` Jiang Liu
2013-01-29 2:50 ` Bjorn Helgaas
2013-01-29 4:36 ` Matthew Garrett
2013-01-29 4:36 ` Matthew Garrett
2013-01-29 1:00 ` Rafael J. Wysocki
2013-02-03 20:18 ` Rafael J. Wysocki
2013-02-03 20:58 ` Bjorn Helgaas
2013-02-03 22:47 ` Myron Stowe
2013-02-03 23:38 ` Rafael J. Wysocki
2013-01-18 16:07 ` [RFC PATCH v5 5/8] PCI, ACPI: hook PCI bus notifications to create/destroy PCI slots Jiang Liu
2013-01-21 0:05 ` Rafael J. Wysocki
2013-01-18 16:07 ` [RFC PATCH v5 6/8] pci_slot: replace printk(KERN_xxx) with pr_xxx() Jiang Liu
2013-01-18 16:07 ` [RFC PATCH v5 7/8] PCI/PCIe: add "pci=nopciehp" to disable PCIe native hotplug Jiang Liu
2013-01-18 17:35 ` Bjorn Helgaas
2013-01-18 17:50 ` Yinghai Lu
2013-01-18 22:08 ` Rafael J. Wysocki
2013-01-22 16:19 ` Jiang Liu
2013-01-18 22:01 ` Rafael J. Wysocki
2013-01-19 1:56 ` Yijing Wang
2013-01-19 14:51 ` Greg Kroah-Hartman
2013-01-18 16:07 ` [RFC PATCH v5 8/8] PCI/PCIe: only claim PME from firmware when CONFIG_PCIE_PME is enabled Jiang Liu
2013-01-20 23:43 ` Rafael J. Wysocki
2013-01-21 17:06 ` Jiang Liu
2013-01-28 20:56 ` [RFC PATCH v5 0/8] introduce PCI bus notifier chain to get rid of the ACPI PCI subdriver interfaces Bjorn Helgaas
2013-01-29 0:34 ` Rafael J. Wysocki
2013-01-29 2:04 ` Jiang Liu
2013-02-01 16:13 ` Jiang Liu
2013-02-01 22:52 ` Bjorn Helgaas
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