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
17 extern void kmemleak_init(void) __init;
18 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
19 gfp_t gfp) __ref;
20 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
21 gfp_t gfp) __ref;
22 extern void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
23 gfp_t gfp) __ref;
24 extern void kmemleak_free(const void *ptr) __ref;
25 extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
26 extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
27 extern void kmemleak_update_trace(const void *ptr) __ref;
28 extern void kmemleak_not_leak(const void *ptr) __ref;
29 extern void kmemleak_ignore(const void *ptr) __ref;
30 extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
31 extern void kmemleak_no_scan(const void *ptr) __ref;
32 extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size, int min_count,
33 gfp_t gfp) __ref;
34 extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref;
35 extern void kmemleak_not_leak_phys(phys_addr_t phys) __ref;
36 extern void kmemleak_ignore_phys(phys_addr_t phys) __ref;
37
kmemleak_alloc_recursive(const void * ptr,size_t size,int min_count,slab_flags_t flags,gfp_t gfp)38 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
39 int min_count, slab_flags_t flags,
40 gfp_t gfp)
41 {
42 if (!(flags & SLAB_NOLEAKTRACE))
43 kmemleak_alloc(ptr, size, min_count, gfp);
44 }
45
kmemleak_free_recursive(const void * ptr,slab_flags_t flags)46 static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
47 {
48 if (!(flags & SLAB_NOLEAKTRACE))
49 kmemleak_free(ptr);
50 }
51
kmemleak_erase(void ** ptr)52 static inline void kmemleak_erase(void **ptr)
53 {
54 *ptr = NULL;
55 }
56
57 #else
58
kmemleak_init(void)59 static inline void kmemleak_init(void)
60 {
61 }
kmemleak_alloc(const void * ptr,size_t size,int min_count,gfp_t gfp)62 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
63 gfp_t gfp)
64 {
65 }
kmemleak_alloc_recursive(const void * ptr,size_t size,int min_count,slab_flags_t flags,gfp_t gfp)66 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
67 int min_count, slab_flags_t flags,
68 gfp_t gfp)
69 {
70 }
kmemleak_alloc_percpu(const void __percpu * ptr,size_t size,gfp_t gfp)71 static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
72 gfp_t gfp)
73 {
74 }
kmemleak_vmalloc(const struct vm_struct * area,size_t size,gfp_t gfp)75 static inline void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
76 gfp_t gfp)
77 {
78 }
kmemleak_free(const void * ptr)79 static inline void kmemleak_free(const void *ptr)
80 {
81 }
kmemleak_free_part(const void * ptr,size_t size)82 static inline void kmemleak_free_part(const void *ptr, size_t size)
83 {
84 }
kmemleak_free_recursive(const void * ptr,slab_flags_t flags)85 static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
86 {
87 }
kmemleak_free_percpu(const void __percpu * ptr)88 static inline void kmemleak_free_percpu(const void __percpu *ptr)
89 {
90 }
kmemleak_update_trace(const void * ptr)91 static inline void kmemleak_update_trace(const void *ptr)
92 {
93 }
kmemleak_not_leak(const void * ptr)94 static inline void kmemleak_not_leak(const void *ptr)
95 {
96 }
kmemleak_ignore(const void * ptr)97 static inline void kmemleak_ignore(const void *ptr)
98 {
99 }
kmemleak_scan_area(const void * ptr,size_t size,gfp_t gfp)100 static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
101 {
102 }
kmemleak_erase(void ** ptr)103 static inline void kmemleak_erase(void **ptr)
104 {
105 }
kmemleak_no_scan(const void * ptr)106 static inline void kmemleak_no_scan(const void *ptr)
107 {
108 }
kmemleak_alloc_phys(phys_addr_t phys,size_t size,int min_count,gfp_t gfp)109 static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
110 int min_count, gfp_t gfp)
111 {
112 }
kmemleak_free_part_phys(phys_addr_t phys,size_t size)113 static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size)
114 {
115 }
kmemleak_not_leak_phys(phys_addr_t phys)116 static inline void kmemleak_not_leak_phys(phys_addr_t phys)
117 {
118 }
kmemleak_ignore_phys(phys_addr_t phys)119 static inline void kmemleak_ignore_phys(phys_addr_t phys)
120 {
121 }
122
123 #endif /* CONFIG_DEBUG_KMEMLEAK */
124
125 #endif /* __KMEMLEAK_H */
126