linuxkpi: Add `mem_is_zero()`
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Authored by dumbbell on Thu, Apr 16, 9:00 PM.

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linuxkpi

Summary

The DRM generic code and the i915 DRM driver started to replace the use of memchr_inv() by a mem_is_zero() in Linux 6.12. We reuse the previous use of memchr_inv() to implement mem_is_zero().

This is part of the update of DRM drivers to Linux 6.12.

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Event Timeline

dumbbell created this revision.Thu, Apr 16, 9:00 PM

Herald added subscribers: emaste, imp. · View Herald TranscriptThu, Apr 16, 9:00 PM

dumbbell requested review of this revision.Thu, Apr 16, 9:00 PM

dumbbell added a parent revision: D56441: linuxkpi: Move {lower,upper}_32_bits macros to <linux/wordpart.h>.Thu, Apr 16, 9:28 PM

dumbbell added a child revision: D56443: linuxkpi: Add `rwsem_is_contended()`.

Revision Contents
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Size

sys/

compat/

linuxkpi/

common/

include/

linux/

string.h

10 lines

Diff 175706

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

linuxkpi: Add `mem_is_zero()`Needs ReviewPublicActions