Some in-kernel headers use _BITUL() instead of BIT().
arch/arm64/include/asm/sysreg.h arch/s390/include/asm/*.h I think the reason is because BIT() is currently not available in assembly. It hard-codes 1UL, which is not available in assembly. 1/2 replaced 1UL -> UL(1) 0UL -> UL(0) 1ULL -> ULL(1) 0ULL -> ULL(0) With this, there is no more restriction that prevents assembly code from using them. 2/2 is a clean-up as as example. I can contribute to cleanups of arch/s390/, etc. once this series lands in upstream. I hope both patches can go in the arm64 tree. Masahiro Yamada (2): linux/bits.h: make BIT(), GENMASK(), and friends available in assembly arm64: replace _BITUL() with BIT() arch/arm64/include/asm/sysreg.h | 82 ++++++++++++++++----------------- include/linux/bits.h | 17 ++++--- 2 files changed, 51 insertions(+), 48 deletions(-) -- 2.17.1
