BITS_PER_LONG
#ifndef BITS_PER_LONG
(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
#define LE_BIT_XOR ((BITS_PER_LONG-1) & ~0x7)
#define ACPI_MACHINE_WIDTH BITS_PER_LONG