Date: Fri, 5 Sep 2025 23:29:04 GMT From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 39e9290d890b - main - LinuxKPI: cleanup: implement __free() and DEFINE_FREE(); use for kfree() Message-ID: <202509052329.585NT42u029365@gitrepo.freebsd.org>
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The branch main has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=39e9290d890b2aa07b68f2fe956b96e5df9a1da2 commit 39e9290d890b2aa07b68f2fe956b96e5df9a1da2 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2025-09-04 20:24:55 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2025-09-05 23:24:15 +0000 LinuxKPI: cleanup: implement __free() and DEFINE_FREE(); use for kfree() A wifi driver update needs this. Sponsored by: The FreeBSD Foundation (initially) MFC after: 3 days Reviewed by: dumbbell Differential Revision: https://reviews.freebsd.org/D52075 --- sys/compat/linuxkpi/common/include/linux/cleanup.h | 14 +++++++++++++- sys/compat/linuxkpi/common/include/linux/slab.h | 4 ++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/sys/compat/linuxkpi/common/include/linux/cleanup.h b/sys/compat/linuxkpi/common/include/linux/cleanup.h index 01f234f0cbe7..45c2a2359ddf 100644 --- a/sys/compat/linuxkpi/common/include/linux/cleanup.h +++ b/sys/compat/linuxkpi/common/include/linux/cleanup.h @@ -1,7 +1,7 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * - * Copyright (c) 2024 The FreeBSD Foundation + * Copyright (c) 2024-2025 The FreeBSD Foundation * * This software was developed by Björn Zeeb under sponsorship from * the FreeBSD Foundation. @@ -43,4 +43,16 @@ guard_ ## _n ## _t guard_ ## _n ## _ ## __COUNTER__ \ __cleanup(guard_ ## _n ## _destroy) = guard_ ## _n ## _create +#define DEFINE_FREE(_n, _t, _f) \ + static inline void \ + __free_ ## _n(void *p) \ + { \ + _t _T; \ + \ + _T = *(_t *)p; \ + _f; \ + } + +#define __free(_n) __cleanup(__free_##_n) + #endif /* _LINUXKPI_LINUX_CLEANUP_H */ diff --git a/sys/compat/linuxkpi/common/include/linux/slab.h b/sys/compat/linuxkpi/common/include/linux/slab.h index 47e3d133eb6c..0e649e1e3c4a 100644 --- a/sys/compat/linuxkpi/common/include/linux/slab.h +++ b/sys/compat/linuxkpi/common/include/linux/slab.h @@ -40,8 +40,10 @@ #include <linux/compat.h> #include <linux/types.h> #include <linux/gfp.h> +#include <linux/err.h> #include <linux/llist.h> #include <linux/overflow.h> +#include <linux/cleanup.h> MALLOC_DECLARE(M_KMALLOC); @@ -153,6 +155,8 @@ kfree(const void *ptr) lkpi_kfree(ptr); } +DEFINE_FREE(kfree, void *, if (!IS_ERR_OR_NULL(_T)) kfree(_T)) + /* * Other k*alloc() funtions using the above as underlying allocator. */
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