Commit 6d1490e2 authored Apr 12, 2013 by Linn Crosetto Committed by Rafael J. Wysocki Apr 12, 2013

ACPICA: FADT: Remove extraneous warning for very large GPE registers



This change removes a size mismatch warning if the legacy
length field for a GPE register set is larger than the 64-bit
GAS structure can accomodate. GPE register sets can be larger
than the 255 bit limitation of the GAS structure. Linn Crosetto
(linn@hp.com).

Signed-off-by: Linn Crosetto <linn@hp.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent b07a383f

drivers/acpi/acpica/tbfadt.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -559,8 +559,12 @@ static void acpi_tb_validate_fadt(void)
		/*
		* For each extended field, check for length mismatch between the
		* legacy length field and the corresponding 64-bit X length field.
		* Note: If the legacy length field is > 0xFF bits, ignore this
		* check. (GPE registers can be larger than the 64-bit GAS structure
		* can accomodate, 0xFF bits).
		*/
		if (address64->address &&
		(ACPI_MUL_8(length) <= ACPI_UINT8_MAX) &&
		(address64->bit_width != ACPI_MUL_8(length))) {
		ACPI_BIOS_WARNING((AE_INFO,
		"32/64X length mismatch in FADT/%s: %u/%u",