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15#ifndef _DEBUGFS_H_
16#define _DEBUGFS_H_
17
18#include <linux/fs.h>
19
20#include <linux/types.h>
21
22struct file_operations;
23
24struct debugfs_blob_wrapper {
25 void *data;
26 unsigned long size;
27};
28
29extern struct dentry *arch_debugfs_dir;
30
31#if defined(CONFIG_DEBUG_FS)
32
33
34extern const struct file_operations debugfs_file_operations;
35extern const struct inode_operations debugfs_link_operations;
36
37struct dentry *debugfs_create_file(const char *name, mode_t mode,
38 struct dentry *parent, void *data,
39 const struct file_operations *fops);
40
41struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
42
43struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
44 const char *dest);
45
46void debugfs_remove(struct dentry *dentry);
47void debugfs_remove_recursive(struct dentry *dentry);
48
49struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
50 struct dentry *new_dir, const char *new_name);
51
52struct dentry *debugfs_create_u8(const char *name, mode_t mode,
53 struct dentry *parent, u8 *value);
54struct dentry *debugfs_create_u16(const char *name, mode_t mode,
55 struct dentry *parent, u16 *value);
56struct dentry *debugfs_create_u32(const char *name, mode_t mode,
57 struct dentry *parent, u32 *value);
58struct dentry *debugfs_create_u64(const char *name, mode_t mode,
59 struct dentry *parent, u64 *value);
60struct dentry *debugfs_create_x8(const char *name, mode_t mode,
61 struct dentry *parent, u8 *value);
62struct dentry *debugfs_create_x16(const char *name, mode_t mode,
63 struct dentry *parent, u16 *value);
64struct dentry *debugfs_create_x32(const char *name, mode_t mode,
65 struct dentry *parent, u32 *value);
66struct dentry *debugfs_create_x64(const char *name, mode_t mode,
67 struct dentry *parent, u64 *value);
68struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
69 struct dentry *parent, size_t *value);
70struct dentry *debugfs_create_bool(const char *name, mode_t mode,
71 struct dentry *parent, u32 *value);
72
73struct dentry *debugfs_create_blob(const char *name, mode_t mode,
74 struct dentry *parent,
75 struct debugfs_blob_wrapper *blob);
76
77bool debugfs_initialized(void);
78
79#else
80
81#include <linux/err.h>
82
83
84
85
86
87
88
89static inline struct dentry *debugfs_create_file(const char *name, mode_t mode,
90 struct dentry *parent, void *data,
91 const struct file_operations *fops)
92{
93 return ERR_PTR(-ENODEV);
94}
95
96static inline struct dentry *debugfs_create_dir(const char *name,
97 struct dentry *parent)
98{
99 return ERR_PTR(-ENODEV);
100}
101
102static inline struct dentry *debugfs_create_symlink(const char *name,
103 struct dentry *parent,
104 const char *dest)
105{
106 return ERR_PTR(-ENODEV);
107}
108
109static inline void debugfs_remove(struct dentry *dentry)
110{ }
111
112static inline void debugfs_remove_recursive(struct dentry *dentry)
113{ }
114
115static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
116 struct dentry *new_dir, char *new_name)
117{
118 return ERR_PTR(-ENODEV);
119}
120
121static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
122 struct dentry *parent,
123 u8 *value)
124{
125 return ERR_PTR(-ENODEV);
126}
127
128static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode,
129 struct dentry *parent,
130 u16 *value)
131{
132 return ERR_PTR(-ENODEV);
133}
134
135static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
136 struct dentry *parent,
137 u32 *value)
138{
139 return ERR_PTR(-ENODEV);
140}
141
142static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode,
143 struct dentry *parent,
144 u64 *value)
145{
146 return ERR_PTR(-ENODEV);
147}
148
149static inline struct dentry *debugfs_create_x8(const char *name, mode_t mode,
150 struct dentry *parent,
151 u8 *value)
152{
153 return ERR_PTR(-ENODEV);
154}
155
156static inline struct dentry *debugfs_create_x16(const char *name, mode_t mode,
157 struct dentry *parent,
158 u16 *value)
159{
160 return ERR_PTR(-ENODEV);
161}
162
163static inline struct dentry *debugfs_create_x32(const char *name, mode_t mode,
164 struct dentry *parent,
165 u32 *value)
166{
167 return ERR_PTR(-ENODEV);
168}
169
170static inline struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
171 struct dentry *parent,
172 size_t *value)
173{
174 return ERR_PTR(-ENODEV);
175}
176
177static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
178 struct dentry *parent,
179 u32 *value)
180{
181 return ERR_PTR(-ENODEV);
182}
183
184static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode,
185 struct dentry *parent,
186 struct debugfs_blob_wrapper *blob)
187{
188 return ERR_PTR(-ENODEV);
189}
190
191static inline bool debugfs_initialized(void)
192{
193 return false;
194}
195
196#endif
197
198#endif
199