[linux-block.git] / include / linux / debugfs.h

// SPDX-License-Identifier: GPL-2.0
/*
 *  debugfs.h - a tiny little debug file system
 *
 *  Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
 *  Copyright (C) 2004 IBM Inc.
 *
 *  debugfs is for people to use instead of /proc or /sys.
 *  See Documentation/filesystems/ for more details.
 */

#ifndef _DEBUGFS_H_
#define _DEBUGFS_H_

#include <linux/fs.h>
#include <linux/seq_file.h>

#include <linux/types.h>
#include <linux/compiler.h>

struct device;
struct file_operations;

struct debugfs_blob_wrapper {
	void *data;
	unsigned long size;
};

struct debugfs_reg32 {
	char *name;
	unsigned long offset;
};

struct debugfs_regset32 {
	const struct debugfs_reg32 *regs;
	int nregs;
	void __iomem *base;
};

extern struct dentry *arch_debugfs_dir;

#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
static int __fops ## _open(struct inode *inode, struct file *file)	\
{									\
	__simple_attr_check_format(__fmt, 0ull);			\
	return simple_attr_open(inode, file, __get, __set, __fmt);	\
}									\
static const struct file_operations __fops = {				\
	.owner	 = THIS_MODULE,						\
	.open	 = __fops ## _open,					\
	.release = simple_attr_release,					\
	.read	 = debugfs_attr_read,					\
	.write	 = debugfs_attr_write,					\
	.llseek  = no_llseek,						\
}

typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);

#if defined(CONFIG_DEBUG_FS)

struct dentry *debugfs_lookup(const char *name, struct dentry *parent);

struct dentry *debugfs_create_file(const char *name, umode_t mode,
				   struct dentry *parent, void *data,
				   const struct file_operations *fops);
struct dentry *debugfs_create_file_unsafe(const char *name, umode_t mode,
				   struct dentry *parent, void *data,
				   const struct file_operations *fops);

void debugfs_create_file_size(const char *name, umode_t mode,
			      struct dentry *parent, void *data,
			      const struct file_operations *fops,
			      loff_t file_size);

struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);

struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
				      const char *dest);

struct dentry *debugfs_create_automount(const char *name,
					struct dentry *parent,
					debugfs_automount_t f,
					void *data);

void debugfs_remove(struct dentry *dentry);
#define debugfs_remove_recursive debugfs_remove

const struct file_operations *debugfs_real_fops(const struct file *filp);

int debugfs_file_get(struct dentry *dentry);
void debugfs_file_put(struct dentry *dentry);

ssize_t debugfs_attr_read(struct file *file, char __user *buf,
			size_t len, loff_t *ppos);
ssize_t debugfs_attr_write(struct file *file, const char __user *buf,
			size_t len, loff_t *ppos);

struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                struct dentry *new_dir, const char *new_name);

void debugfs_create_u8(const char *name, umode_t mode, struct dentry *parent,
		       u8 *value);
void debugfs_create_u16(const char *name, umode_t mode, struct dentry *parent,
			u16 *value);
struct dentry *debugfs_create_u32(const char *name, umode_t mode,
				  struct dentry *parent, u32 *value);
void debugfs_create_u64(const char *name, umode_t mode, struct dentry *parent,
			u64 *value);
struct dentry *debugfs_create_ulong(const char *name, umode_t mode,
				    struct dentry *parent, unsigned long *value);
void debugfs_create_x8(const char *name, umode_t mode, struct dentry *parent,
		       u8 *value);
void debugfs_create_x16(const char *name, umode_t mode, struct dentry *parent,
			u16 *value);
void debugfs_create_x32(const char *name, umode_t mode, struct dentry *parent,
			u32 *value);
void debugfs_create_x64(const char *name, umode_t mode, struct dentry *parent,
			u64 *value);
void debugfs_create_size_t(const char *name, umode_t mode,
			   struct dentry *parent, size_t *value);
void debugfs_create_atomic_t(const char *name, umode_t mode,
			     struct dentry *parent, atomic_t *value);
struct dentry *debugfs_create_bool(const char *name, umode_t mode,
				  struct dentry *parent, bool *value);

struct dentry *debugfs_create_blob(const char *name, umode_t mode,
				  struct dentry *parent,
				  struct debugfs_blob_wrapper *blob);

void debugfs_create_regset32(const char *name, umode_t mode,
			     struct dentry *parent,
			     struct debugfs_regset32 *regset);

void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
			  int nregs, void __iomem *base, char *prefix);

void debugfs_create_u32_array(const char *name, umode_t mode,
			      struct dentry *parent, u32 *array, u32 elements);

struct dentry *debugfs_create_devm_seqfile(struct device *dev, const char *name,
					   struct dentry *parent,
					   int (*read_fn)(struct seq_file *s,
							  void *data));

bool debugfs_initialized(void);

ssize_t debugfs_read_file_bool(struct file *file, char __user *user_buf,
			       size_t count, loff_t *ppos);

ssize_t debugfs_write_file_bool(struct file *file, const char __user *user_buf,
				size_t count, loff_t *ppos);

#else

#include <linux/err.h>

/*
 * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
 * so users have a chance to detect if there was a real error or not.  We don't
 * want to duplicate the design decision mistakes of procfs and devfs again.
 */

static inline struct dentry *debugfs_lookup(const char *name,
					    struct dentry *parent)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_file(const char *name, umode_t mode,
					struct dentry *parent, void *data,
					const struct file_operations *fops)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_file_unsafe(const char *name,
					umode_t mode, struct dentry *parent,
					void *data,
					const struct file_operations *fops)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_create_file_size(const char *name, umode_t mode,
					    struct dentry *parent, void *data,
					    const struct file_operations *fops,
					    loff_t file_size)
{ }

static inline struct dentry *debugfs_create_dir(const char *name,
						struct dentry *parent)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_symlink(const char *name,
						    struct dentry *parent,
						    const char *dest)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_automount(const char *name,
					struct dentry *parent,
					debugfs_automount_t f,
					void *data)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_remove(struct dentry *dentry)
{ }

static inline void debugfs_remove_recursive(struct dentry *dentry)
{ }

const struct file_operations *debugfs_real_fops(const struct file *filp);

static inline int debugfs_file_get(struct dentry *dentry)
{
	return 0;
}

static inline void debugfs_file_put(struct dentry *dentry)
{ }

static inline ssize_t debugfs_attr_read(struct file *file, char __user *buf,
					size_t len, loff_t *ppos)
{
	return -ENODEV;
}

static inline ssize_t debugfs_attr_write(struct file *file,
					const char __user *buf,
					size_t len, loff_t *ppos)
{
	return -ENODEV;
}

static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                struct dentry *new_dir, char *new_name)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_create_u8(const char *name, umode_t mode,
				     struct dentry *parent, u8 *value) { }

static inline void debugfs_create_u16(const char *name, umode_t mode,
				      struct dentry *parent, u16 *value) { }

static inline struct dentry *debugfs_create_u32(const char *name, umode_t mode,
						struct dentry *parent,
						u32 *value)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_create_u64(const char *name, umode_t mode,
				      struct dentry *parent, u64 *value) { }

static inline struct dentry *debugfs_create_ulong(const char *name,
						umode_t mode,
						struct dentry *parent,
						unsigned long *value)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_create_x8(const char *name, umode_t mode,
				     struct dentry *parent, u8 *value) { }

static inline void debugfs_create_x16(const char *name, umode_t mode,
				      struct dentry *parent, u16 *value) { }

static inline void debugfs_create_x32(const char *name, umode_t mode,
				      struct dentry *parent, u32 *value) { }

static inline void debugfs_create_x64(const char *name, umode_t mode,
				      struct dentry *parent, u64 *value) { }

static inline void debugfs_create_size_t(const char *name, umode_t mode,
					 struct dentry *parent, size_t *value)
{ }

static inline void debugfs_create_atomic_t(const char *name, umode_t mode,
					   struct dentry *parent,
					   atomic_t *value)
{ }

static inline struct dentry *debugfs_create_bool(const char *name, umode_t mode,
						 struct dentry *parent,
						 bool *value)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_blob(const char *name, umode_t mode,
				  struct dentry *parent,
				  struct debugfs_blob_wrapper *blob)
{
	return ERR_PTR(-ENODEV);
}

static inline void debugfs_create_regset32(const char *name, umode_t mode,
					   struct dentry *parent,
					   struct debugfs_regset32 *regset)
{
}

static inline void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
			 int nregs, void __iomem *base, char *prefix)
{
}

static inline bool debugfs_initialized(void)
{
	return false;
}

static inline void debugfs_create_u32_array(const char *name, umode_t mode,
					    struct dentry *parent, u32 *array,
					    u32 elements)
{
}

static inline struct dentry *debugfs_create_devm_seqfile(struct device *dev,
							 const char *name,
							 struct dentry *parent,
					   int (*read_fn)(struct seq_file *s,
							  void *data))
{
	return ERR_PTR(-ENODEV);
}

static inline ssize_t debugfs_read_file_bool(struct file *file,
					     char __user *user_buf,
					     size_t count, loff_t *ppos)
{
	return -ENODEV;
}

static inline ssize_t debugfs_write_file_bool(struct file *file,
					      const char __user *user_buf,
					      size_t count, loff_t *ppos)
{
	return -ENODEV;
}

#endif

/**
 * debugfs_create_xul - create a debugfs file that is used to read and write an
 * unsigned long value, formatted in hexadecimal
 * @name: a pointer to a string containing the name of the file to create.
 * @mode: the permission that the file should have
 * @parent: a pointer to the parent dentry for this file.  This should be a
 *          directory dentry if set.  If this parameter is %NULL, then the
 *          file will be created in the root of the debugfs filesystem.
 * @value: a pointer to the variable that the file should read to and write
 *         from.
 */
static inline void debugfs_create_xul(const char *name, umode_t mode,
				      struct dentry *parent,
				      unsigned long *value)
{
	if (sizeof(*value) == sizeof(u32))
		debugfs_create_x32(name, mode, parent, (u32 *)value);
	else
		debugfs_create_x64(name, mode, parent, (u64 *)value);
}

#endif
Commit	Line	Data
3bce94fd	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/*
	3	* debugfs.h - a tiny little debug file system
	4	*
	5	* Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
	6	* Copyright (C) 2004 IBM Inc.
	7	*
1da177e4	8	* debugfs is for people to use instead of /proc or /sys.
e1b4fc7a	9	* See Documentation/filesystems/ for more details.
1da177e4 LT	10	*/
	11
	12	#ifndef _DEBUGFS_H_
	13	#define _DEBUGFS_H_
	14
	15	#include <linux/fs.h>
1a087c6a	16	#include <linux/seq_file.h>
1da177e4	17
a7a76cef	18	#include <linux/types.h>
49d200de	19	#include <linux/compiler.h>
a7a76cef	20
f30d0a81	21	struct device;
a7a76cef RD	22	struct file_operations;
a7a76cef RD	23
dd308bc3 ME	24	struct debugfs_blob_wrapper {
	25	void *data;
	26	unsigned long size;
	27	};
	28
1a087c6a AR	29	struct debugfs_reg32 {
	30	char *name;
	31	unsigned long offset;
	32	};
	33
	34	struct debugfs_regset32 {
833d6e01	35	const struct debugfs_reg32 *regs;
1a087c6a AR	36	int nregs;
	37	void __iomem *base;
	38	};
	39
ae79cdaa	40	extern struct dentry *arch_debugfs_dir;
ae79cdaa	41
7f847dd3 AB	42	#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \
	43	static int __fops ## _open(struct inode inode, struct file file) \
	44	{ \
	45	__simple_attr_check_format(__fmt, 0ull); \
	46	return simple_attr_open(inode, file, __get, __set, __fmt); \
	47	} \
	48	static const struct file_operations __fops = { \
	49	.owner = THIS_MODULE, \
	50	.open = __fops ## _open, \
	51	.release = simple_attr_release, \
	52	.read = debugfs_attr_read, \
	53	.write = debugfs_attr_write, \
895ce6c8	54	.llseek = no_llseek, \
7f847dd3 AB	55	}
7f847dd3 AB	56
4250b047 KK	57	typedef struct vfsmount (debugfs_automount_t)(struct dentry , void );
4250b047 KK	58
1da177e4	59	#if defined(CONFIG_DEBUG_FS)
3634634e	60
a7c5437b OS	61	struct dentry debugfs_lookup(const char name, struct dentry *parent);
a7c5437b OS	62
f4ae40a6	63	struct dentry debugfs_create_file(const char name, umode_t mode,
1da177e4	64	struct dentry parent, void data,
99ac48f5	65	const struct file_operations *fops);
c6468808 NS	66	struct dentry debugfs_create_file_unsafe(const char name, umode_t mode,
	67	struct dentry parent, void data,
	68	const struct file_operations *fops);
1da177e4	69
526ee72d GKH	70	void debugfs_create_file_size(const char *name, umode_t mode,
	71	struct dentry parent, void data,
	72	const struct file_operations *fops,
	73	loff_t file_size);
e59b4e91	74
1da177e4 LT	75	struct dentry debugfs_create_dir(const char name, struct dentry *parent);
1da177e4 LT	76
66f54963 PO	77	struct dentry debugfs_create_symlink(const char name, struct dentry *parent,
	78	const char *dest);
	79
77b3da6e AV	80	struct dentry debugfs_create_automount(const char name,
77b3da6e AV	81	struct dentry *parent,
93faccbb	82	debugfs_automount_t f,
77b3da6e AV	83	void *data);
77b3da6e AV	84
1da177e4	85	void debugfs_remove(struct dentry *dentry);
a3d1e7eb	86	#define debugfs_remove_recursive debugfs_remove
1da177e4	87
055ab8e3	88	const struct file_operations debugfs_real_fops(const struct file filp);
7c8d4698	89
e9117a5a NS	90	int debugfs_file_get(struct dentry *dentry);
	91	void debugfs_file_put(struct dentry *dentry);
	92
c6468808 NS	93	ssize_t debugfs_attr_read(struct file file, char __user buf,
	94	size_t len, loff_t *ppos);
	95	ssize_t debugfs_attr_write(struct file file, const char __user buf,
	96	size_t len, loff_t *ppos);
	97
cfc94cdf JK	98	struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	99	struct dentry new_dir, const char new_name);
	100
9655ac4a GKH	101	void debugfs_create_u8(const char name, umode_t mode, struct dentry parent,
9655ac4a GKH	102	u8 *value);
313f5dbb GKH	103	void debugfs_create_u16(const char name, umode_t mode, struct dentry parent,
313f5dbb GKH	104	u16 *value);
f4ae40a6	105	struct dentry debugfs_create_u32(const char name, umode_t mode,
1da177e4	106	struct dentry parent, u32 value);
ad26221f GKH	107	void debugfs_create_u64(const char name, umode_t mode, struct dentry parent,
ad26221f GKH	108	u64 *value);
c23fe831 VK	109	struct dentry debugfs_create_ulong(const char name, umode_t mode,
c23fe831 VK	110	struct dentry parent, unsigned long value);
c7c11689 GKH	111	void debugfs_create_x8(const char name, umode_t mode, struct dentry parent,
c7c11689 GKH	112	u8 *value);
e40d38f2 GKH	113	void debugfs_create_x16(const char name, umode_t mode, struct dentry parent,
e40d38f2 GKH	114	u16 *value);
f5cb0a7e GKH	115	void debugfs_create_x32(const char name, umode_t mode, struct dentry parent,
f5cb0a7e GKH	116	u32 *value);
0864c408 GKH	117	void debugfs_create_x64(const char name, umode_t mode, struct dentry parent,
0864c408 GKH	118	u64 *value);
8e580263 GKH	119	void debugfs_create_size_t(const char *name, umode_t mode,
8e580263 GKH	120	struct dentry parent, size_t value);
9927c6fa GKH	121	void debugfs_create_atomic_t(const char *name, umode_t mode,
9927c6fa GKH	122	struct dentry parent, atomic_t value);
f4ae40a6	123	struct dentry debugfs_create_bool(const char name, umode_t mode,
621a5f7a	124	struct dentry parent, bool value);
1da177e4	125
f4ae40a6	126	struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	127	struct dentry *parent,
dd308bc3 ME	128	struct debugfs_blob_wrapper *blob);
c0f92ba9	129
ae91c925 GKH	130	void debugfs_create_regset32(const char *name, umode_t mode,
	131	struct dentry *parent,
	132	struct debugfs_regset32 *regset);
1a087c6a	133
9761536e JP	134	void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
9761536e JP	135	int nregs, void __iomem base, char prefix);
1a087c6a	136
c9c2c27d GKH	137	void debugfs_create_u32_array(const char *name, umode_t mode,
c9c2c27d GKH	138	struct dentry parent, u32 array, u32 elements);
9fe2a701	139
98210b7f AS	140	struct dentry debugfs_create_devm_seqfile(struct device dev, const char *name,
	141	struct dentry *parent,
	142	int (read_fn)(struct seq_file s,
	143	void *data));
	144
c0f92ba9 FW	145	bool debugfs_initialized(void);
c0f92ba9 FW	146
0642ef6f RF	147	ssize_t debugfs_read_file_bool(struct file file, char __user user_buf,
	148	size_t count, loff_t *ppos);
	149
	150	ssize_t debugfs_write_file_bool(struct file file, const char __user user_buf,
	151	size_t count, loff_t *ppos);
	152
1da177e4	153	#else
a7a76cef RD	154
	155	#include <linux/err.h>
	156
98210b7f	157	/*
1da177e4 LT	158	* We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
	159	* so users have a chance to detect if there was a real error or not. We don't
	160	* want to duplicate the design decision mistakes of procfs and devfs again.
	161	*/
	162
a7c5437b OS	163	static inline struct dentry debugfs_lookup(const char name,
	164	struct dentry *parent)
	165	{
	166	return ERR_PTR(-ENODEV);
	167	}
	168
f4ae40a6	169	static inline struct dentry debugfs_create_file(const char name, umode_t mode,
bde11d79 JD	170	struct dentry parent, void data,
bde11d79 JD	171	const struct file_operations *fops)
1da177e4 LT	172	{
	173	return ERR_PTR(-ENODEV);
	174	}
	175
c2a737eb VK	176	static inline struct dentry debugfs_create_file_unsafe(const char name,
	177	umode_t mode, struct dentry *parent,
	178	void *data,
	179	const struct file_operations *fops)
	180	{
	181	return ERR_PTR(-ENODEV);
	182	}
	183
526ee72d GKH	184	static inline void debugfs_create_file_size(const char *name, umode_t mode,
	185	struct dentry parent, void data,
	186	const struct file_operations *fops,
	187	loff_t file_size)
	188	{ }
e59b4e91	189
1da177e4 LT	190	static inline struct dentry debugfs_create_dir(const char name,
	191	struct dentry *parent)
	192	{
	193	return ERR_PTR(-ENODEV);
	194	}
	195
66f54963 PO	196	static inline struct dentry debugfs_create_symlink(const char name,
	197	struct dentry *parent,
	198	const char *dest)
	199	{
	200	return ERR_PTR(-ENODEV);
	201	}
	202
94e1dec7 JW	203	static inline struct dentry debugfs_create_automount(const char name,
94e1dec7 JW	204	struct dentry *parent,
4250b047	205	debugfs_automount_t f,
94e1dec7 JW	206	void *data)
	207	{
	208	return ERR_PTR(-ENODEV);
	209	}
	210
1da177e4 LT	211	static inline void debugfs_remove(struct dentry *dentry)
	212	{ }
	213
9505e637 HS	214	static inline void debugfs_remove_recursive(struct dentry *dentry)
	215	{ }
	216
f50caa9b AB	217	const struct file_operations debugfs_real_fops(const struct file filp);
f50caa9b AB	218
e9117a5a NS	219	static inline int debugfs_file_get(struct dentry *dentry)
	220	{
	221	return 0;
	222	}
	223
	224	static inline void debugfs_file_put(struct dentry *dentry)
	225	{ }
	226
7f847dd3 AB	227	static inline ssize_t debugfs_attr_read(struct file file, char __user buf,
	228	size_t len, loff_t *ppos)
	229	{
	230	return -ENODEV;
	231	}
	232
	233	static inline ssize_t debugfs_attr_write(struct file *file,
	234	const char __user *buf,
	235	size_t len, loff_t *ppos)
	236	{
	237	return -ENODEV;
	238	}
c6468808	239
cfc94cdf JK	240	static inline struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	241	struct dentry new_dir, char new_name)
	242	{
	243	return ERR_PTR(-ENODEV);
	244	}
	245
9655ac4a GKH	246	static inline void debugfs_create_u8(const char *name, umode_t mode,
9655ac4a GKH	247	struct dentry parent, u8 value) { }
1da177e4	248
313f5dbb GKH	249	static inline void debugfs_create_u16(const char *name, umode_t mode,
313f5dbb GKH	250	struct dentry parent, u16 value) { }
1da177e4	251
f4ae40a6	252	static inline struct dentry debugfs_create_u32(const char name, umode_t mode,
1da177e4	253	struct dentry *parent,
7b558637	254	u32 *value)
1da177e4 LT	255	{
	256	return ERR_PTR(-ENODEV);
	257	}
	258
ad26221f GKH	259	static inline void debugfs_create_u64(const char *name, umode_t mode,
ad26221f GKH	260	struct dentry parent, u64 value) { }
8447891f	261
c2a737eb VK	262	static inline struct dentry debugfs_create_ulong(const char name,
	263	umode_t mode,
	264	struct dentry *parent,
	265	unsigned long *value)
	266	{
	267	return ERR_PTR(-ENODEV);
	268	}
	269
c7c11689 GKH	270	static inline void debugfs_create_x8(const char *name, umode_t mode,
c7c11689 GKH	271	struct dentry parent, u8 value) { }
2ebefc50	272
e40d38f2 GKH	273	static inline void debugfs_create_x16(const char *name, umode_t mode,
e40d38f2 GKH	274	struct dentry parent, u16 value) { }
2ebefc50	275
f5cb0a7e GKH	276	static inline void debugfs_create_x32(const char *name, umode_t mode,
f5cb0a7e GKH	277	struct dentry parent, u32 value) { }
2ebefc50	278
0864c408 GKH	279	static inline void debugfs_create_x64(const char *name, umode_t mode,
0864c408 GKH	280	struct dentry parent, u64 value) { }
3159269e	281
8e580263 GKH	282	static inline void debugfs_create_size_t(const char *name, umode_t mode,
	283	struct dentry parent, size_t value)
	284	{ }
8adb711f	285
9927c6fa GKH	286	static inline void debugfs_create_atomic_t(const char *name, umode_t mode,
	287	struct dentry *parent,
	288	atomic_t *value)
	289	{ }
5b880214	290
f4ae40a6	291	static inline struct dentry debugfs_create_bool(const char name, umode_t mode,
1da177e4	292	struct dentry *parent,
621a5f7a	293	bool *value)
1da177e4 LT	294	{
	295	return ERR_PTR(-ENODEV);
	296	}
	297
f4ae40a6	298	static inline struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	299	struct dentry *parent,
	300	struct debugfs_blob_wrapper *blob)
	301	{
	302	return ERR_PTR(-ENODEV);
	303	}
	304
ae91c925 GKH	305	static inline void debugfs_create_regset32(const char *name, umode_t mode,
	306	struct dentry *parent,
	307	struct debugfs_regset32 *regset)
1a087c6a	308	{
1a087c6a AR	309	}
1a087c6a AR	310
9761536e	311	static inline void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
5b880214 WY	312	int nregs, void __iomem base, char prefix)
5b880214 WY	313	{
5b880214 WY	314	}
5b880214 WY	315
c0f92ba9 FW	316	static inline bool debugfs_initialized(void)
	317	{
	318	return false;
	319	}
	320
c9c2c27d GKH	321	static inline void debugfs_create_u32_array(const char *name, umode_t mode,
	322	struct dentry parent, u32 array,
	323	u32 elements)
9fe2a701	324	{
9fe2a701 SV	325	}
9fe2a701 SV	326
98210b7f AS	327	static inline struct dentry debugfs_create_devm_seqfile(struct device dev,
	328	const char *name,
	329	struct dentry *parent,
	330	int (read_fn)(struct seq_file s,
	331	void *data))
	332	{
	333	return ERR_PTR(-ENODEV);
	334	}
	335
0642ef6f RF	336	static inline ssize_t debugfs_read_file_bool(struct file *file,
	337	char __user *user_buf,
	338	size_t count, loff_t *ppos)
	339	{
	340	return -ENODEV;
	341	}
	342
	343	static inline ssize_t debugfs_write_file_bool(struct file *file,
	344	const char __user *user_buf,
	345	size_t count, loff_t *ppos)
	346	{
	347	return -ENODEV;
	348	}
	349
1da177e4 LT	350	#endif
1da177e4 LT	351
d3504757 GU	352	/**
	353	* debugfs_create_xul - create a debugfs file that is used to read and write an
	354	* unsigned long value, formatted in hexadecimal
	355	* @name: a pointer to a string containing the name of the file to create.
	356	* @mode: the permission that the file should have
	357	* @parent: a pointer to the parent dentry for this file. This should be a
	358	* directory dentry if set. If this parameter is %NULL, then the
	359	* file will be created in the root of the debugfs filesystem.
	360	* @value: a pointer to the variable that the file should read to and write
	361	* from.
	362	*/
	363	static inline void debugfs_create_xul(const char *name, umode_t mode,
	364	struct dentry *parent,
	365	unsigned long *value)
	366	{
	367	if (sizeof(*value) == sizeof(u32))
	368	debugfs_create_x32(name, mode, parent, (u32 *)value);
	369	else
	370	debugfs_create_x64(name, mode, parent, (u64 *)value);
	371	}
	372
1da177e4	373	#endif