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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * include/linux/kmemleak.h
4 *
5 * Copyright (C) 2008 ARM Limited
6 * Written by Catalin Marinas <catalin.marinas@arm.com>
7 */
8
9#ifndef __KMEMLEAK_H
10#define __KMEMLEAK_H
11
12#include <linux/slab.h>
13#include <linux/vmalloc.h>
14
15#ifdef CONFIG_DEBUG_KMEMLEAK
16
17extern void kmemleak_init(void) __init;
18extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
19 gfp_t gfp) __ref;
20extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
21 gfp_t gfp) __ref;
22extern void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
23 gfp_t gfp) __ref;
24extern void kmemleak_free(const void *ptr) __ref;
25extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
26extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
27extern void kmemleak_update_trace(const void *ptr) __ref;
28extern void kmemleak_not_leak(const void *ptr) __ref;
29extern void kmemleak_transient_leak(const void *ptr) __ref;
30extern void kmemleak_ignore(const void *ptr) __ref;
31extern void kmemleak_ignore_percpu(const void __percpu *ptr) __ref;
32extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
33extern void kmemleak_no_scan(const void *ptr) __ref;
34extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
35 gfp_t gfp) __ref;
36extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref;
37extern void kmemleak_ignore_phys(phys_addr_t phys) __ref;
38
39static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
40 int min_count, slab_flags_t flags,
41 gfp_t gfp)
42{
43 if (!(flags & SLAB_NOLEAKTRACE))
44 kmemleak_alloc(ptr, size, min_count, gfp);
45}
46
47static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
48{
49 if (!(flags & SLAB_NOLEAKTRACE))
50 kmemleak_free(ptr);
51}
52
53static inline void kmemleak_erase(void **ptr)
54{
55 *ptr = NULL;
56}
57
58#else
59
60static inline void kmemleak_init(void)
61{
62}
63static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
64 gfp_t gfp)
65{
66}
67static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
68 int min_count, slab_flags_t flags,
69 gfp_t gfp)
70{
71}
72static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
73 gfp_t gfp)
74{
75}
76static inline void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
77 gfp_t gfp)
78{
79}
80static inline void kmemleak_free(const void *ptr)
81{
82}
83static inline void kmemleak_free_part(const void *ptr, size_t size)
84{
85}
86static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
87{
88}
89static inline void kmemleak_free_percpu(const void __percpu *ptr)
90{
91}
92static inline void kmemleak_update_trace(const void *ptr)
93{
94}
95static inline void kmemleak_not_leak(const void *ptr)
96{
97}
98static inline void kmemleak_transient_leak(const void *ptr)
99{
100}
101static inline void kmemleak_ignore_percpu(const void __percpu *ptr)
102{
103}
104static inline void kmemleak_ignore(const void *ptr)
105{
106}
107static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
108{
109}
110static inline void kmemleak_erase(void **ptr)
111{
112}
113static inline void kmemleak_no_scan(const void *ptr)
114{
115}
116static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
117 gfp_t gfp)
118{
119}
120static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size)
121{
122}
123static inline void kmemleak_ignore_phys(phys_addr_t phys)
124{
125}
126
127#endif /* CONFIG_DEBUG_KMEMLEAK */
128
129#endif /* __KMEMLEAK_H */