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erofs-linux/include/uapi/linux/bits.h
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Arnaldo Carvalho de Melo fc92099902 tools headers: Synchronize linux/bits.h with the kernel sources
To pick up the changes in this cset:

  1e7933a575 ("uapi: Revert "bitops: avoid integer overflow in GENMASK(_ULL)"")
  5b572e8a9f ("bits: introduce fixed-type BIT_U*()")
  19408200c0 ("bits: introduce fixed-type GENMASK_U*()")
  31299a5e02 ("bits: add comments and newlines to #if, #else and #endif directives")

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/linux/bits.h include/linux/bits.h

Please see tools/include/uapi/README for further details.

Acked-by: Vincent Mailhol <[email protected]>
Cc: I Hsin Cheng <[email protected]>
Cc: Yury Norov <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Lucas De Marchi <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Yury Norov <[email protected]>
Link: https://lore.kernel.org/r/aEr0ZJ60EbshEy6p@x1
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2025-06-17 16:55:24 -03:00

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455 B
C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* bits.h: Macros for dealing with bitmasks. */
#ifndef _UAPI_LINUX_BITS_H
#define _UAPI_LINUX_BITS_H
#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h))))
#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h))))
#define __GENMASK_U128(h, l) \
((_BIT128((h)) << 1) - (_BIT128(l)))
#endif /* _UAPI_LINUX_BITS_H */