Commit 7ce95ce5 authored by Len Brown's avatar Len Brown
Browse files

ACPI: Delete Intel Customer Reference Board (CRB) from OSI(Linux) DMI list 



Linux does not want BIOS writers to invoke _OSI(Linux) -
for in the field it causes more Windows incompatibility problems
than it solves.

So when it is seen in the BIOS for an Intel Customer Reference Board,
Linux should ignore its effect by default, and should complain loudly.
Otherwise, the reference BIOS will go unfixed, and the bad BIOS
will spread to the field.

Users of this board can get the old behavior with "acpi_osi=Linux"

As this was the only entry, delete acpi_osl_dmi_table[].

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent f40cd6fd

drivers/acpi/osl.c

+0 −29
Original line number Original line Diff line number Diff line
@@ -79,10 +79,6 @@ static char osi_additional_string[OSI_STRING_LENGTH_MAX]; 




static int osi_linux;		/* disable _OSI(Linux) by default */

static int osi_linux;		/* disable _OSI(Linux) by default */





#ifdef CONFIG_DMI

static struct __initdata dmi_system_id acpi_osl_dmi_table[];

#endif



static void __init acpi_request_region (struct acpi_generic_address *addr,

static void __init acpi_request_region (struct acpi_generic_address *addr,

	unsigned int length, char *desc)

	unsigned int length, char *desc)

{

{
@@ -133,7 +129,6 @@ device_initcall(acpi_reserve_resources); 




acpi_status __init acpi_os_initialize(void)

acpi_status __init acpi_os_initialize(void)

{

{

	dmi_check_system(acpi_osl_dmi_table);

	return AE_OK;

	return AE_OK;

}

}
@@ -1232,28 +1227,4 @@ acpi_os_validate_address ( 
    return AE_OK;

    return AE_OK;

}

}





#ifdef CONFIG_DMI

static int dmi_osi_linux(const struct dmi_system_id *d)

{

	printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident);

	enable_osi_linux(1);

	return 0;

}



static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {

	/*

	 * Boxes that need _OSI(Linux)

	 */

	{

	 .callback = dmi_osi_linux,

	 .ident = "Intel Napa CRB",

	 .matches = {

		     DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),

		     DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),

		     },

	 },

	{}

};

#endif /* CONFIG_DMI */



#endif
 
#endif

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