bitops api · Maintained

Maintainers

• M Yury Norov <yury.norov@gmail.com>
• R Rasmus Villemoes <linux@rasmusvillemoes.dk>

Paths

• F arch/*/include/asm/bitops.h
• F arch/*/include/asm/bitops_32.h
• F arch/*/include/asm/bitops_64.h
• F arch/*/lib/bitops.c
• F include/asm-generic/bitops
• F include/asm-generic/bitops.h
• F include/linux/bitops.h
• F include/linux/bitrev.h
• F include/linux/count_zeros.h
• F lib/bitrev.c
• F lib/hweight.c
• F lib/test_bitops.c
• F lib/tests/bitops_kunit.c
• F tools/*/bitops*

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-sh (capped at 30), ordered by date desc.

• STALE357d LANDED [PATCH 02/17] bitops: Add __attribute_const__ to generic ffs()-family implementations
  2025-08-04 · Kees Cook <kees@kernel.org>
• STALE1377d REVIEWED: 5 (5M) [PATCH v5 6/9] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1377d REVIEWED: 13 (13M) [PATCH v5 5/9] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1377d REVIEWED: 24 (24M) [PATCH v5 3/9] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1377d REVIEWED: 13 (13M) [PATCH v5 4/9] bitops: define const_*() versions of the non-atomics
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1571d REVIEWED: 13 (13M) [PATCH v4 5/8] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1571d REVIEWED: 5 (5M) [PATCH v4 6/8] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1571d REVIEWED: 24 (24M) [PATCH v4 3/8] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1571d REVIEWED: 13 (13M) [PATCH v4 4/8] bitops: define const_*() versions of the non-atomics
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1558d REVIEWED: 16 (16M) [PATCH v3 3/7] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1558d [PATCH v3 4/7] bitops: define const_*() versions of the non-atomics
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1558d [PATCH v3 5/7] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1558d [PATCH v3 6/7] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1578d [PATCH v2 6/6] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1578d REVIEWED: 16 (16M) [PATCH v2 3/6] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1578d [PATCH v2 5/6] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1578d [PATCH v2 4/6] bitops: define const_*() versions of the non-atomics
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1585d [PATCH 4/6] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1585d [PATCH 5/6] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1585d [PATCH 6/6] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1978d REVIEWED: 3 (3M) [PATCH 10/12] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-04-01 · Yury Norov <yury.norov@gmail.com>
• STALE2026d [PATCH 10/12] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-03-21 · Yury Norov <yury.norov@gmail.com>
• STALE2013d [PATCH 11/13] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-03-16 · Yury Norov <yury.norov@gmail.com>
• STALE2038d [PATCH 12/14] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-02-18 · Yury Norov <yury.norov@gmail.com>
• STALE2062d [PATCH 8/8] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-30 · Yury Norov <yury.norov@gmail.com>
• STALE2080d [PATCH 6/6] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-29 · Yury Norov <yury.norov@gmail.com>
• STALE2081d [PATCH 2/6] bitmap: move some macros from linux/bitmap.h to linux/bitops.h
  2021-01-21 · Yury Norov <yury.norov@gmail.com>
• STALE2081d [PATCH 6/6] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-21 · Yury Norov <yury.norov@gmail.com>
• STALE5799d REVIEWED: 6 (5M) [PATCH v3 22/22] bitops: remove minix bitops from asm/bitops.h
  2010-11-23 · Akinobu Mita <akinobu.mita@gmail.com>
• STALE5829d [PATCH v2 22/22] bitops: remove minix bitops from asm/bitops.h
  2010-10-21 · Akinobu Mita <akinobu.mita@gmail.com>