Merge branch 'bugzilla-11481' into test

	rr = &acpi_gbl_FADT.reset_register;

	/* Is the reset register supported? */

	if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||

	    rr->bit_width != 8 || rr->bit_offset != 0)

	/*

	 * Is the ACPI reset register supported?

	 *

	 * According to ACPI 3.0, FADT.flags.RESET_REG_SUP indicates

	 * whether the ACPI reset mechanism is supported.

	 *

	 * However, some boxes have this bit clear, yet a valid

	 * ACPI_RESET_REG & RESET_VALUE, and ACPI reboot is the only

	 * mechanism that works for them after S3.

	 *

	 * This suggests that other operating systems may not be checking

	 * the RESET_REG_SUP bit, and are using other means to decide

	 * whether to use the ACPI reboot mechanism or not.

	 *

	 * So when acpi reboot is requested,

	 * only the reset_register is checked. If the following

	 * conditions are met, it indicates that the reset register is supported.

	 * 	a. reset_register is not zero

	 * 	b. the access width is eight

	 * 	c. the bit_offset is zero

	 */

	if (!(rr->address) || rr->bit_width != 8 || rr->bit_offset != 0)

		return;

	reset_value = acpi_gbl_FADT.reset_value;