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-m68k (capped at 30), ordered by date desc.

• STALE267d LANDED [PATCH 02/17] bitops: Add __attribute_const__ to generic ffs()-family implementations
  2025-08-04 · Kees Cook <kees@kernel.org>
• STALE887d [PATCH v4 5/5] lib: test_bitops: add compile-time optimization/evaluations assertions
  2024-01-28 · Vincent Mailhol <hidden>
• STALE1288d REVIEWED: 5 (5M) [PATCH v5 6/9] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1288d REVIEWED: 12 (12M) [PATCH v5 5/9] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1288d REVIEWED: 22 (22M) [PATCH v5 3/9] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1288d REVIEWED: 12 (12M) [PATCH v5 4/9] bitops: define const_*() versions of the non-atomics
  2022-06-24 · Alexander Lobakin <hidden>
• STALE1482d REVIEWED: 12 (12M) [PATCH v4 5/8] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1482d REVIEWED: 5 (5M) [PATCH v4 6/8] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1482d REVIEWED: 22 (22M) [PATCH v4 3/8] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1482d REVIEWED: 12 (12M) [PATCH v4 4/8] bitops: define const_*() versions of the non-atomics
  2022-06-21 · Alexander Lobakin <hidden>
• STALE1468d REVIEWED: 15 (15M) [PATCH v3 3/7] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1468d [PATCH v3 4/7] bitops: define const_*() versions of the non-atomics
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1468d [PATCH v3 5/7] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1468d [PATCH v3 6/7] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-17 · Alexander Lobakin <hidden>
• STALE1489d [PATCH v2 6/6] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1489d REVIEWED: 15 (15M) [PATCH v2 3/6] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1489d [PATCH v2 5/6] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1489d [PATCH v2 4/6] bitops: define const_*() versions of the non-atomics
  2022-06-10 · Alexander Lobakin <hidden>
• STALE1496d [PATCH 4/6] bitops: unify non-atomic bitops prototypes across architectures
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1496d [PATCH 5/6] bitops: wrap non-atomic bitops with a transparent macro
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1496d [PATCH 6/6] bitops: let optimize out non-atomic bitops on compile-time constants
  2022-06-06 · Alexander Lobakin <hidden>
• STALE1888d 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>
• STALE1937d [PATCH 10/12] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-03-21 · Yury Norov <yury.norov@gmail.com>
• STALE1924d [PATCH 11/13] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-03-16 · Yury Norov <yury.norov@gmail.com>
• STALE1949d [PATCH 12/14] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-02-18 · Yury Norov <yury.norov@gmail.com>
• STALE1972d [PATCH 8/8] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-30 · Yury Norov <yury.norov@gmail.com>
• STALE1991d [PATCH 6/6] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-29 · Yury Norov <yury.norov@gmail.com>
• STALE1991d [PATCH 2/6] bitmap: move some macros from linux/bitmap.h to linux/bitops.h
  2021-01-21 · Yury Norov <yury.norov@gmail.com>
• STALE1991d [PATCH 6/6] lib: add fast path for find_first_*_bit() and find_last_bit()
  2021-01-21 · Yury Norov <yury.norov@gmail.com>
• STALE5709d REVIEWED: 6 (5M) [PATCH v3 22/22] bitops: remove minix bitops from asm/bitops.h
  2010-11-23 · Akinobu Mita <akinobu.mita@gmail.com>