LAST_PKMAP_MASK    54 include/asm-frv/highmem.h #define LAST_PKMAP_MASK	(LAST_PKMAP - 1)
LAST_PKMAP_MASK    41 include/asm-mn10300/highmem.h #define LAST_PKMAP_MASK (LAST_PKMAP - 1)
LAST_PKMAP_MASK    56 include/asm-x86/highmem.h #define LAST_PKMAP_MASK (LAST_PKMAP-1)