This adds support for GENMASK_U128() and some corresponding tests as well. GENMASK_U128() generated 128 bit masks will be required later on the arm64 platform for enabling FEAT_SYSREG128 and FEAT_D128 features. Question: Proposed GENMASK_U128() depends on __int128 data type being supported in the compiler. Just wondering if that requires some compiler version #ifdefs or something similar ? Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Yury Norov <yury.norov@xxxxxxxxx> Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx>> Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-arch@xxxxxxxxxxxxxxx Anshuman Khandual (2): uapi: Define GENMASK_U128 lib/test_bits.c: Add tests for GENMASK_U128() include/linux/bits.h | 2 ++ include/uapi/asm-generic/bitsperlong.h | 4 ++++ include/uapi/linux/bits.h | 4 ++++ include/uapi/linux/const.h | 3 +++ lib/test_bits.c | 21 +++++++++++++++++++++ 5 files changed, 34 insertions(+) -- 2.30.2
