linux-kernel - RE: [PATCH V3 1/2] Xen stub driver for memory hotplug

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Message-ID: <DE8DF0795D48FD4CA783C40EC82923353DC766@SHSMSX101.ccr.corp.intel.com>
Date:	Thu, 24 Jan 2013 13:56:56 +0000
From:	"Liu, Jinsong" <jinsong.liu@...el.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Konrad Rzeszutek Wilk <konrad@...nel.org>
Subject: RE: [PATCH V3 1/2] Xen stub driver for memory hotplug

>> +#include <linux/kernel.h>
>> +#include <linux/init.h>
>> +#include <linux/export.h>
>> +#include <linux/types.h>
>> +#include <linux/acpi.h>
>> +#include <acpi/acpi_drivers.h>
>> +#include <xen/acpi.h>
>> +
>> +/*--------------------------------------------
>> +	stub driver for Xen memory hotplug
>> +--------------------------------------------*/
>> +
>> +#ifdef CONFIG_ACPI
>> +
>> +static const struct acpi_device_id memory_device_ids[] = {
>> +	{ACPI_MEMORY_DEVICE_HID, 0},
>> +	{"", 0},
>> +};
>> +
>> +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,
>> +};
>> +EXPORT_SYMBOL_GPL(xen_stub_memory_device_driver);
> 
> Instead of having this, could you have a function that would
> unregister this if required.
> 
> xen_stub_memory_device_uninit(void)
> 
> which would unregister the above mentioned structure?
> 

Yup, updated by EXPORT_SYMBOL_GPL 2 funcs:
xen_stub_memory_device_init()
xen_stub_memory_device_exit()

Thanks,
Jinsong--
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