mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 05:08:30 +07:00
d2e0bca377
It's redundant since linux/acpi.h has include it when CONFIG_ACPI enabled, and when CONFIG_ACPI disabled it will trigger compiling warning In file included from drivers/xen/xen-stub.c:28:0: include/acpi/acpi_drivers.h:103:31: warning: 'struct acpi_device' declared inside parameter list [enabled by default] include/acpi/acpi_drivers.h:103:31: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] include/acpi/acpi_drivers.h:107:43: warning: 'struct acpi_pci_root' declared inside parameter list [enabled by default] Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Liu Jinsong <jinsong.liu@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/*
|
|
* xen-stub.c - stub drivers to reserve space for Xen
|
|
*
|
|
* Copyright (C) 2012 Intel Corporation
|
|
* Author: Liu Jinsong <jinsong.liu@intel.com>
|
|
* Author: Jiang Yunhong <yunhong.jiang@intel.com>
|
|
*
|
|
* Copyright (C) 2012 Oracle Inc
|
|
* Author: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for more
|
|
* details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/export.h>
|
|
#include <linux/types.h>
|
|
#include <linux/acpi.h>
|
|
#include <xen/acpi.h>
|
|
|
|
#ifdef CONFIG_ACPI
|
|
|
|
/*--------------------------------------------
|
|
stub driver for Xen memory hotplug
|
|
--------------------------------------------*/
|
|
|
|
static const struct acpi_device_id memory_device_ids[] = {
|
|
{ACPI_MEMORY_DEVICE_HID, 0},
|
|
{"", 0},
|
|
};
|
|
|
|
static struct acpi_driver xen_stub_memory_device_driver = {
|
|
/* same name as native memory driver to block native loaded */
|
|
.name = "acpi_memhotplug",
|
|
.class = ACPI_MEMORY_DEVICE_CLASS,
|
|
.ids = memory_device_ids,
|
|
};
|
|
|
|
int xen_stub_memory_device_init(void)
|
|
{
|
|
if (!xen_initial_domain())
|
|
return -ENODEV;
|
|
|
|
/* just reserve space for Xen, block native driver loaded */
|
|
return acpi_bus_register_driver(&xen_stub_memory_device_driver);
|
|
}
|
|
EXPORT_SYMBOL_GPL(xen_stub_memory_device_init);
|
|
subsys_initcall(xen_stub_memory_device_init);
|
|
|
|
void xen_stub_memory_device_exit(void)
|
|
{
|
|
acpi_bus_unregister_driver(&xen_stub_memory_device_driver);
|
|
}
|
|
EXPORT_SYMBOL_GPL(xen_stub_memory_device_exit);
|
|
|
|
|
|
/*--------------------------------------------
|
|
stub driver for Xen cpu hotplug
|
|
--------------------------------------------*/
|
|
|
|
static const struct acpi_device_id processor_device_ids[] = {
|
|
{ACPI_PROCESSOR_OBJECT_HID, 0},
|
|
{ACPI_PROCESSOR_DEVICE_HID, 0},
|
|
{"", 0},
|
|
};
|
|
|
|
static struct acpi_driver xen_stub_processor_driver = {
|
|
/* same name as native processor driver to block native loaded */
|
|
.name = "processor",
|
|
.class = ACPI_PROCESSOR_CLASS,
|
|
.ids = processor_device_ids,
|
|
};
|
|
|
|
int xen_stub_processor_init(void)
|
|
{
|
|
if (!xen_initial_domain())
|
|
return -ENODEV;
|
|
|
|
/* just reserve space for Xen, block native driver loaded */
|
|
return acpi_bus_register_driver(&xen_stub_processor_driver);
|
|
}
|
|
EXPORT_SYMBOL_GPL(xen_stub_processor_init);
|
|
subsys_initcall(xen_stub_processor_init);
|
|
|
|
void xen_stub_processor_exit(void)
|
|
{
|
|
acpi_bus_unregister_driver(&xen_stub_processor_driver);
|
|
}
|
|
EXPORT_SYMBOL_GPL(xen_stub_processor_exit);
|
|
|
|
#endif
|