ARM, arm64, unicore32 define UL() as a shorthand of _AC(..., UL). In the future, more architectures may introduce it, so move the definition to include/linux/const.h. The _AC() is used for either (likely) UL or (unlikely) ULL. Having UL(L) in a common place can avoid direct use of _AC(). The _AC() is defined under uapi directory, so it compels underscore-prefixed macros even for unexported headers. I see similar situation for _BITUL(). This is available in both C and assembly. However, it is defined in an uapi header, so direct use of the underscore macro is needed even for unexported headers. The 3/3 makes BIT() available in assembly too, which will be more suitable for use in unexported headers. Masahiro Yamada (3): linux/const.h: move UL() macro to include/linux/const.h linux/const.h: refactor _BITUL and _BITULL a bit linux/const.h: move BIT(_ULL) to linux/const.h for use in assembly arch/arm/include/asm/memory.h | 6 ------ arch/arm64/include/asm/memory.h | 6 ------ arch/m68k/mm/init.c | 6 +++--- arch/unicore32/include/asm/memory.h | 6 ------ include/linux/bitops.h | 3 +-- include/linux/const.h | 12 ++++++++++++ include/uapi/linux/const.h | 13 ++++++++----- 7 files changed, 24 insertions(+), 28 deletions(-) create mode 100644 include/linux/const.h -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html