Commit a6e0887f authored by Len Brown's avatar Len Brown
Browse files

ACPI: delete OSI(Linux) DMI dmesg spam 



Linux will continue to ignore OSI(Linux),
except for a white-list containing a few systems.

So delete the black-list,
and stop soliciting user-feedback on the console.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 95a28ed0

drivers/acpi/blacklist.c

+5 −396
Original line number Diff line number Diff line
@@ -176,16 +176,6 @@ static int __init dmi_enable_osi_linux(const struct dmi_system_id *d) 
	acpi_dmi_osi_linux(1, d);	/* enable */

	return 0;

}

static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)

{

	acpi_dmi_osi_linux(0, d);	/* disable */

	return 0;

}

static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)

{

	acpi_dmi_osi_linux(-1, d);	/* unknown */

	return 0;

}

static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)

{

	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
@@ -193,253 +183,7 @@ static int __init dmi_disable_osi_vista(const struct dmi_system_id *d) 
	return 0;

}



/*

 * Most BIOS that invoke OSI(Linux) do nothing with it.

 * But some cause Linux to break.

 * Only a couple use it to make Linux run better.

 *

 * Thus, Linux should continue to disable OSI(Linux) by default,

 * should continue to discourage BIOS writers from using it, and

 * should whitelist the few existing systems that require it.

 *

 * If it appears clear a vendor isn't using OSI(Linux)

 * for anything constructive, blacklist them by name to disable

 * unnecessary dmesg warnings on all of their products.

 */



static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {

	/*

	 * Disable OSI(Linux) warnings on all "Acer, inc."

	 *

	 * _OSI(Linux) disables the latest Windows BIOS code:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),

	 * _OSI(Linux) effect unknown:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),

	 */

	/*

	 * note that dmi_check_system() uses strstr()

	 * to match sub-strings rather than !strcmp(),

	 * so "Acer" below matches "Acer, inc." above.

	 */

	/*

	 * Disable OSI(Linux) warnings on all "Acer"

	 *

	 * _OSI(Linux) effect unknown:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),

	 *

	 * _OSI(Linux) is a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Acer",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Acer"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."

	 * Disable OSI(Linux) warnings on all "Apple Inc."

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),

	 * _OSI(Linux) effect unknown:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Apple",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Apple"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "BenQ"

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "BenQ",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "Clevo Co."

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Clevo",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "COMPAL"

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),

	 * _OSI(Linux) unknown effect:

	 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Compal",

	.matches = {

		     DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),

		},

	},

	{ /* OSI(Linux) touches USB, unknown side-effect */

	.callback = dmi_disable_osi_linux,

	.ident = "Dell Dimension 5150",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),

		},

	},

	{ /* OSI(Linux) is a NOP */

	.callback = dmi_disable_osi_linux,

	.ident = "Dell i1501",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),

		},

	},

	{ /* OSI(Linux) effect unknown */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell Latitude D830",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),

		},

	},

	{ /* OSI(Linux) effect unknown */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell OptiPlex GX620",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),

		},

	},

	{ /* OSI(Linux) causes some USB initialization to not run */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell OptiPlex 755",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 755"),

		},

	},

	{ /* OSI(Linux) effect unknown */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell PE 1900",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),

		},

	},

	{ /* OSI(Linux) is a NOP */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell PE 1950",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),

		},

	},

	{ /* OSI(Linux) is a NOP */

	.callback = dmi_disable_osi_linux,

	.ident = "Dell PE R200",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R200"),

		},

	},

	{ /* OSI(Linux) touches USB */

	.callback = dmi_disable_osi_linux,

	.ident = "Dell PR 390",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),

		},

	},

	{ /* OSI(Linux) touches USB */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell PR 390",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 690"),

		},

	},

	{ /* OSI(Linux) unknown - ASL looks benign, but may effect dock/SMM */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell PR M4300",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Precision M4300"),

		},

	},

	{ /* OSI(Linux) is a NOP */

	.callback = dmi_disable_osi_linux,

	.ident = "Dell Vostro 1000",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Vostro   1000"),

		},

	},

	{ /* OSI(Linux) effect unknown */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dell PE SC440",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),

		},

	},

	{ /* OSI(Linux) effect unknown */

	.callback = dmi_unknown_osi_linux,

	.ident = "Dialogue Flybook V5",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),

		     DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"

	 *

	 * _OSI(Linux) disables latest Windows BIOS code:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),

	 * _OSI(Linux) unknown effect:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Fujitsu Siemens",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),

		},

	},

	{

	.callback = dmi_disable_osi_vista,

	.ident = "Fujitsu Siemens",
@@ -448,40 +192,12 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { 
		     DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),

		},

	},



	/*

	 * Disable OSI(Linux) warnings on all "Hewlett-Packard"

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * .ident = "HP Pavilion tx 1000"

	 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),

	 * .ident = "HP Pavilion dv2000"

	 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),

	 * .ident = "HP Pavilion dv5000",

	 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),

	 * .ident = "HP Pavilion dv6300 30BC",

	 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),

	 * .ident = "HP Pavilion dv6000",

	 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),

	 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),

	 * .ident = "HP Pavilion dv9000",

	 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),

	 * .ident = "HP Pavilion dv9500",

	 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),

	 * .ident = "HP/Compaq Presario C500",

	 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),

	 * .ident = "HP/Compaq Presario F500",

	 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),

	 * _OSI(Linux) unknown effect:

	 * .ident = "HP Pavilion dv6500",

	 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),

	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.

	 * Linux ignores it, except for the machines enumerated below.

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Hewlett-Packard",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),

		},

	},



	/*

	 * Lenovo has a mix of systems OSI(Linux) situations

	 * and thus we can not wildcard the vendor.
@@ -519,113 +235,6 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { 
		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),

		},

	},

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Lenovo 3000 V100",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

		     DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),

		},

	},

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Lenovo 3000 N100",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

		     DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "LG Electronics"

	 *

	 * _OSI(Linux) confirmed to be a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),

	 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),

	 *

	 * unknown:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"),

	 * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "LG",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),

		},

	},

	/* NEC - OSI(Linux) effect unknown */

	{

	.callback = dmi_unknown_osi_linux,

	.ident = "NEC VERSA M360",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),

		     DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),

		},

	},

	/* Panasonic */

	{

	.callback = dmi_unknown_osi_linux,

	.ident = "Panasonic",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),

			/* Toughbook CF-52 */

		     DMI_MATCH(DMI_PRODUCT_NAME, "CF-52CCABVBG"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "Samsung Electronics"

	 *

	 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Samsung",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "Sony Corporation"

	 *

	 * _OSI(Linux) is a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NR11S_S"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),

	 * _OSI(Linux) unknown effect:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Sony",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),

		},

	},

	/*

	 * Disable OSI(Linux) warnings on all "TOSHIBA"

	 *

	 * _OSI(Linux) breaks sound (bugzilla 7787):

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),

	 * _OSI(Linux) is a NOP:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),

	 * _OSI(Linux) unknown effect:

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),

	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),

	 */

	{

	.callback = dmi_disable_osi_linux,

	.ident = "Toshiba",

	.matches = {

		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),

		},

	},

	{}

};

drivers/acpi/osl.c

+25 −79
Original line number Diff line number Diff line
@@ -35,7 +35,6 @@ 
#include <linux/interrupt.h>

#include <linux/kmod.h>

#include <linux/delay.h>

#include <linux/dmi.h>

#include <linux/workqueue.h>

#include <linux/nmi.h>

#include <linux/acpi.h>
@@ -97,54 +96,44 @@ static DEFINE_SPINLOCK(acpi_res_lock); 
static char osi_additional_string[OSI_STRING_LENGTH_MAX];



/*

 * "Ode to _OSI(Linux)"

 * The story of _OSI(Linux)

 *

 * osi_linux -- Control response to BIOS _OSI(Linux) query.

 * From pre-history through Linux-2.6.22,

 * Linux responded TRUE upon a BIOS OSI(Linux) query.

 *

 * As Linux evolves, the features that it supports change.

 * So an OSI string such as "Linux" is not specific enough

 * to be useful across multiple versions of Linux.  It

 * doesn't identify any particular feature, interface,

 * or even any particular version of Linux...

 * Unfortunately, reference BIOS writers got wind of this

 * and put OSI(Linux) in their example code, quickly exposing

 * this string as ill-conceived and opening the door to

 * an un-bounded number of BIOS incompatibilities.

 *

 * Unfortunately, Linux-2.6.22 and earlier responded "yes"

 * to a BIOS _OSI(Linux) query.  When

 * a reference mobile BIOS started using it, its use

 * started to spread to many vendor platforms.

 * As it is not supportable, we need to halt that spread.

 * For example, OSI(Linux) was used on resume to re-POST a

 * video card on one system, because Linux at that time

 * could not do a speedy restore in its native driver.

 * But then upon gaining quick native restore capability,

 * Linux has no way to tell the BIOS to skip the time-consuming

 * POST -- putting Linux at a permanent performance disadvantage.

 * On another system, the BIOS writer used OSI(Linux)

 * to infer native OS support for IPMI!  On other systems,

 * OSI(Linux) simply got in the way of Linux claiming to

 * be compatible with other operating systems, exposing

 * BIOS issues such as skipped device initialization.

 *

 * Today, most BIOS references to _OSI(Linux) are noise --

 * they have no functional effect and are just dead code

 * carried over from the reference BIOS.

 *

 * The next most common case is that _OSI(Linux) harms Linux,

 * usually by causing the BIOS to follow paths that are

 * not tested during Windows validation.

 *

 * Finally, there is a short list of platforms

 * where OSI(Linux) benefits Linux.

 *

 * In Linux-2.6.23, OSI(Linux) is first disabled by default.

 * DMI is used to disable the dmesg warning about OSI(Linux)

 * on platforms where it is known to have no effect.

 * But a dmesg warning remains for systems where

 * we do not know if OSI(Linux) is good or bad for the system.

 * DMI is also used to enable OSI(Linux) for the machines

 * that are known to need it.

 * So "Linux" turned out to be a really poor chose of

 * OSI string, and from Linux-2.6.23 onward we respond FALSE.

 *

 * BIOS writers should NOT query _OSI(Linux) on future systems.

 * It will be ignored by default, and to get Linux to

 * not ignore it will require a kernel source update to

 * add a DMI entry, or a boot-time "acpi_osi=Linux" invocation.

 * Linux will complain on the console when it sees it, and return FALSE.

 * To get Linux to return TRUE for your system  will require

 * a kernel source update to add a DMI entry,

 * or boot with "acpi_osi=Linux"

 */

#define OSI_LINUX_ENABLE 0



static struct osi_linux {

	unsigned int	enable:1;

	unsigned int	dmi:1;

	unsigned int	cmdline:1;

	unsigned int	known:1;

} osi_linux = { OSI_LINUX_ENABLE, 0, 0, 0};

} osi_linux = { 0, 0, 0, 0};



static void __init acpi_request_region (struct acpi_generic_address *addr,

	unsigned int length, char *desc)
@@ -1296,34 +1285,6 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) 
	return (AE_OK);

}



/**

 *	acpi_dmi_dump - dump DMI slots needed for blacklist entry

 *

 *	Returns 0 on success

 */

static int acpi_dmi_dump(void)

{



	if (!dmi_available)

		return -1;



	printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n",

		dmi_get_system_info(DMI_SYS_VENDOR));

	printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n",

		dmi_get_system_info(DMI_PRODUCT_NAME));

	printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n",

		dmi_get_system_info(DMI_PRODUCT_VERSION));

	printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n",

		dmi_get_system_info(DMI_BOARD_NAME));

	printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n",

		dmi_get_system_info(DMI_BIOS_VENDOR));

	printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n",

		dmi_get_system_info(DMI_BIOS_DATE));



	return 0;

}





/******************************************************************************

 *

 * FUNCTION:    acpi_os_validate_interface
@@ -1350,21 +1311,6 @@ acpi_os_validate_interface (char *interface) 
			osi_linux.cmdline ? " via cmdline" :

			osi_linux.dmi ? " via DMI" : "");



		if (!osi_linux.dmi) {

			if (acpi_dmi_dump())

				printk(KERN_NOTICE PREFIX

					"[please extract dmidecode output]\n");

			printk(KERN_NOTICE PREFIX

				"Please send DMI info above to "

				"linux-acpi@vger.kernel.org\n");

		}

		if (!osi_linux.known && !osi_linux.cmdline) {

			printk(KERN_NOTICE PREFIX

				"If \"acpi_osi=%sLinux\" works better, "

				"please notify linux-acpi@vger.kernel.org\n",

				osi_linux.enable ? "!" : "");

		}



		if (osi_linux.enable)

			return AE_OK;

	}