3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lv Zheng <lv.zheng@xxxxxxxxx> commit 85dbd5801f62b66e2aa7826aaefcaebead44c8a6 upstream. We need to find a smarter way to switch to 64-bit FADT addresses according to the bug report. This patch reverts Linux to the original behavior. Fixes: 0249ed2444d6 (ACPICA: Add option to favor 32-bit FADT addresses.) References: https://bugzilla.kernel.org/show_bug.cgi?id=74021 Reported-and-tested-by: Oswald Buddenhagen <ossi@xxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/acpi/acpica/acglobal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -132,9 +132,9 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_do_not_use_ * address. Although ACPICA adheres to the ACPI specification which * requires the use of the corresponding 64-bit address if it is non-zero, * some machines have been found to have a corrupted non-zero 64-bit - * address. Default is FALSE, do not favor the 32-bit addresses. + * address. Default is TRUE, favor the 32-bit addresses. */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, FALSE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, TRUE); /* * Optionally truncate I/O addresses to 16 bits. Provides compatibility -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html