Date: Wed, 29 Apr 2026 21:42:58 +0000 From: Jean-=?utf-8?Q?S=C3=A9bast?==?utf-8?Q?ien P=C3=A9?=dron <dumbbell@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 026509a6bc7a - stable/15 - linuxkpi: Add `mem_is_zero()` Message-ID: <69f27b62.46ff2.2eee8008@gitrepo.freebsd.org>
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The branch stable/15 has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=026509a6bc7a350cc1b241cf2acb40b5ba8876a8 commit 026509a6bc7a350cc1b241cf2acb40b5ba8876a8 Author: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> AuthorDate: 2026-04-12 10:16:55 +0000 Commit: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> CommitDate: 2026-04-29 21:03:45 +0000 linuxkpi: Add `mem_is_zero()` 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()`. Reviewed by: bz Sponsored by: The FreeBSD Foundation (cherry picked from commit ab77c26d3643b88b29d3526d60b939d1cca402f9) --- sys/compat/linuxkpi/common/include/linux/string.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h index 0b858e7af623..8ca20df27792 100644 --- a/sys/compat/linuxkpi/common/include/linux/string.h +++ b/sys/compat/linuxkpi/common/include/linux/string.h @@ -198,6 +198,12 @@ memchr_inv(const void *start, int c, size_t length) return (NULL); } +static inline bool +mem_is_zero(const void *start, size_t length) +{ + return (memchr_inv(start, 0, length) == NULL); +} + static inline size_t str_has_prefix(const char *str, const char *prefix) {home | help
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