linuxkpi: Remove incorrect + 1 from HWEIGHT* macros
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Authored by emaste on Jun 24 2025, 1:39 PM.

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rGb84dd938c913: linuxkpi: Remove incorrect + 1 from HWEIGHT* macros
rGcdbff1b29996: linuxkpi: Remove incorrect + 1 from HWEIGHT* macros

Summary

On Linux these are equivalent to hweight* for known-constant arguments.

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rG FreeBSD src repository

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Event Timeline

emaste requested review of this revision.Jun 24 2025, 1:39 PM

emaste created this revision.

emaste mentioned this in D50995: linuxkpi: Use `__builtin_popcountg()` instead of `bitcount*()`.

bz accepted this revision.Jun 24 2025, 10:05 PM

This revision is now accepted and ready to land.Jun 24 2025, 10:05 PM

Closed by commit rGcdbff1b29996: linuxkpi: Remove incorrect + 1 from HWEIGHT* macros (authored by emaste). · Explain WhyJun 24 2025, 10:43 PM

This revision was automatically updated to reflect the committed changes.

emaste added a commit: rGcdbff1b29996: linuxkpi: Remove incorrect + 1 from HWEIGHT* macros.

Herald added a subscriber: imp. · View Herald TranscriptJun 24 2025, 10:43 PM

emaste added a commit: rGb84dd938c913: linuxkpi: Remove incorrect + 1 from HWEIGHT* macros.Jul 22 2025, 4:03 PM

Revision Contents
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Path

Size

sys/

compat/

linuxkpi/

common/

include/

linux/

bitops.h

8 lines

Diff 157552

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sys/compat/linuxkpi/common/include/linux/bitops.h

linuxkpi: Remove incorrect + 1 from HWEIGHT* macrosClosedPublicActions