From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- tools/perf/util/btf.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 tools/perf/util/btf.c (limited to 'tools/perf/util/btf.c') diff --git a/tools/perf/util/btf.c b/tools/perf/util/btf.c new file mode 100644 index 000000000..50d98f3e8 --- /dev/null +++ b/tools/perf/util/btf.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Arnaldo Carvalho de Melo + * + * Copyright (C) 2024, Red Hat, Inc + */ + +#include +#include +#include + +const struct btf_member *__btf_type__find_member_by_name(struct btf *btf, + int type_id, const char *member_name) +{ + const struct btf_type *t = btf__type_by_id(btf, type_id); + const struct btf_member *m; + u32 i; + + for (i = 0, m = btf_members(t); i < btf_vlen(t); i++, m++) { + const char *current_member_name = btf__name_by_offset(btf, m->name_off); + + if (!strcmp(current_member_name, member_name)) + return m; + } + + return NULL; +} -- cgit v1.3.1