[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;
	struct device *dev;	/* Optional device for Runtime PM */
};

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);
void 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 void debugfs_create_u32(const char *name, umode_t mode,
				      struct dentry *parent, u32 *value) { }

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;
1a087c6a AR	37	void __iomem *base;
30332eee	38	struct device dev; / Optional device for Runtime PM */
1a087c6a AR	39	};
1a087c6a AR	40
ae79cdaa	41	extern struct dentry *arch_debugfs_dir;
ae79cdaa	42
7f847dd3 AB	43	#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \
	44	static int __fops ## _open(struct inode inode, struct file file) \
	45	{ \
	46	__simple_attr_check_format(__fmt, 0ull); \
	47	return simple_attr_open(inode, file, __get, __set, __fmt); \
	48	} \
	49	static const struct file_operations __fops = { \
	50	.owner = THIS_MODULE, \
	51	.open = __fops ## _open, \
	52	.release = simple_attr_release, \
	53	.read = debugfs_attr_read, \
	54	.write = debugfs_attr_write, \
895ce6c8	55	.llseek = no_llseek, \
7f847dd3 AB	56	}
7f847dd3 AB	57
4250b047 KK	58	typedef struct vfsmount (debugfs_automount_t)(struct dentry , void );
4250b047 KK	59
1da177e4	60	#if defined(CONFIG_DEBUG_FS)
3634634e	61
a7c5437b OS	62	struct dentry debugfs_lookup(const char name, struct dentry *parent);
a7c5437b OS	63
f4ae40a6	64	struct dentry debugfs_create_file(const char name, umode_t mode,
1da177e4	65	struct dentry parent, void data,
99ac48f5	66	const struct file_operations *fops);
c6468808 NS	67	struct dentry debugfs_create_file_unsafe(const char name, umode_t mode,
	68	struct dentry parent, void data,
	69	const struct file_operations *fops);
1da177e4	70
526ee72d GKH	71	void debugfs_create_file_size(const char *name, umode_t mode,
	72	struct dentry parent, void data,
	73	const struct file_operations *fops,
	74	loff_t file_size);
e59b4e91	75
1da177e4 LT	76	struct dentry debugfs_create_dir(const char name, struct dentry *parent);
1da177e4 LT	77
66f54963 PO	78	struct dentry debugfs_create_symlink(const char name, struct dentry *parent,
	79	const char *dest);
	80
77b3da6e AV	81	struct dentry debugfs_create_automount(const char name,
77b3da6e AV	82	struct dentry *parent,
93faccbb	83	debugfs_automount_t f,
77b3da6e AV	84	void *data);
77b3da6e AV	85
1da177e4	86	void debugfs_remove(struct dentry *dentry);
a3d1e7eb	87	#define debugfs_remove_recursive debugfs_remove
1da177e4	88
055ab8e3	89	const struct file_operations debugfs_real_fops(const struct file filp);
7c8d4698	90
e9117a5a NS	91	int debugfs_file_get(struct dentry *dentry);
	92	void debugfs_file_put(struct dentry *dentry);
	93
c6468808 NS	94	ssize_t debugfs_attr_read(struct file file, char __user buf,
	95	size_t len, loff_t *ppos);
	96	ssize_t debugfs_attr_write(struct file file, const char __user buf,
	97	size_t len, loff_t *ppos);
	98
cfc94cdf JK	99	struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	100	struct dentry new_dir, const char new_name);
	101
9655ac4a GKH	102	void debugfs_create_u8(const char name, umode_t mode, struct dentry parent,
9655ac4a GKH	103	u8 *value);
313f5dbb GKH	104	void debugfs_create_u16(const char name, umode_t mode, struct dentry parent,
313f5dbb GKH	105	u16 *value);
2b07021a GKH	106	void debugfs_create_u32(const char name, umode_t mode, struct dentry parent,
2b07021a GKH	107	u32 *value);
ad26221f GKH	108	void debugfs_create_u64(const char name, umode_t mode, struct dentry parent,
ad26221f GKH	109	u64 *value);
c23fe831 VK	110	struct dentry debugfs_create_ulong(const char name, umode_t mode,
c23fe831 VK	111	struct dentry parent, unsigned long value);
c7c11689 GKH	112	void debugfs_create_x8(const char name, umode_t mode, struct dentry parent,
c7c11689 GKH	113	u8 *value);
e40d38f2 GKH	114	void debugfs_create_x16(const char name, umode_t mode, struct dentry parent,
e40d38f2 GKH	115	u16 *value);
f5cb0a7e GKH	116	void debugfs_create_x32(const char name, umode_t mode, struct dentry parent,
f5cb0a7e GKH	117	u32 *value);
0864c408 GKH	118	void debugfs_create_x64(const char name, umode_t mode, struct dentry parent,
0864c408 GKH	119	u64 *value);
8e580263 GKH	120	void debugfs_create_size_t(const char *name, umode_t mode,
8e580263 GKH	121	struct dentry parent, size_t value);
9927c6fa GKH	122	void debugfs_create_atomic_t(const char *name, umode_t mode,
9927c6fa GKH	123	struct dentry parent, atomic_t value);
f4ae40a6	124	struct dentry debugfs_create_bool(const char name, umode_t mode,
621a5f7a	125	struct dentry parent, bool value);
1da177e4	126
f4ae40a6	127	struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	128	struct dentry *parent,
dd308bc3 ME	129	struct debugfs_blob_wrapper *blob);
c0f92ba9	130
ae91c925 GKH	131	void debugfs_create_regset32(const char *name, umode_t mode,
	132	struct dentry *parent,
	133	struct debugfs_regset32 *regset);
1a087c6a	134
9761536e JP	135	void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
9761536e JP	136	int nregs, void __iomem base, char prefix);
1a087c6a	137
c9c2c27d GKH	138	void debugfs_create_u32_array(const char *name, umode_t mode,
c9c2c27d GKH	139	struct dentry parent, u32 array, u32 elements);
9fe2a701	140
98210b7f AS	141	struct dentry debugfs_create_devm_seqfile(struct device dev, const char *name,
	142	struct dentry *parent,
	143	int (read_fn)(struct seq_file s,
	144	void *data));
	145
c0f92ba9 FW	146	bool debugfs_initialized(void);
c0f92ba9 FW	147
0642ef6f RF	148	ssize_t debugfs_read_file_bool(struct file file, char __user user_buf,
	149	size_t count, loff_t *ppos);
	150
	151	ssize_t debugfs_write_file_bool(struct file file, const char __user user_buf,
	152	size_t count, loff_t *ppos);
	153
1da177e4	154	#else
a7a76cef RD	155
	156	#include <linux/err.h>
	157
98210b7f	158	/*
1da177e4 LT	159	* We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
	160	* so users have a chance to detect if there was a real error or not. We don't
	161	* want to duplicate the design decision mistakes of procfs and devfs again.
	162	*/
	163
a7c5437b OS	164	static inline struct dentry debugfs_lookup(const char name,
	165	struct dentry *parent)
	166	{
	167	return ERR_PTR(-ENODEV);
	168	}
	169
f4ae40a6	170	static inline struct dentry debugfs_create_file(const char name, umode_t mode,
bde11d79 JD	171	struct dentry parent, void data,
bde11d79 JD	172	const struct file_operations *fops)
1da177e4 LT	173	{
	174	return ERR_PTR(-ENODEV);
	175	}
	176
c2a737eb VK	177	static inline struct dentry debugfs_create_file_unsafe(const char name,
	178	umode_t mode, struct dentry *parent,
	179	void *data,
	180	const struct file_operations *fops)
	181	{
	182	return ERR_PTR(-ENODEV);
	183	}
	184
526ee72d GKH	185	static inline void debugfs_create_file_size(const char *name, umode_t mode,
	186	struct dentry parent, void data,
	187	const struct file_operations *fops,
	188	loff_t file_size)
	189	{ }
e59b4e91	190
1da177e4 LT	191	static inline struct dentry debugfs_create_dir(const char name,
	192	struct dentry *parent)
	193	{
	194	return ERR_PTR(-ENODEV);
	195	}
	196
66f54963 PO	197	static inline struct dentry debugfs_create_symlink(const char name,
	198	struct dentry *parent,
	199	const char *dest)
	200	{
	201	return ERR_PTR(-ENODEV);
	202	}
	203
94e1dec7 JW	204	static inline struct dentry debugfs_create_automount(const char name,
94e1dec7 JW	205	struct dentry *parent,
4250b047	206	debugfs_automount_t f,
94e1dec7 JW	207	void *data)
	208	{
	209	return ERR_PTR(-ENODEV);
	210	}
	211
1da177e4 LT	212	static inline void debugfs_remove(struct dentry *dentry)
	213	{ }
	214
9505e637 HS	215	static inline void debugfs_remove_recursive(struct dentry *dentry)
	216	{ }
	217
f50caa9b AB	218	const struct file_operations debugfs_real_fops(const struct file filp);
f50caa9b AB	219
e9117a5a NS	220	static inline int debugfs_file_get(struct dentry *dentry)
	221	{
	222	return 0;
	223	}
	224
	225	static inline void debugfs_file_put(struct dentry *dentry)
	226	{ }
	227
7f847dd3 AB	228	static inline ssize_t debugfs_attr_read(struct file file, char __user buf,
	229	size_t len, loff_t *ppos)
	230	{
	231	return -ENODEV;
	232	}
	233
	234	static inline ssize_t debugfs_attr_write(struct file *file,
	235	const char __user *buf,
	236	size_t len, loff_t *ppos)
	237	{
	238	return -ENODEV;
	239	}
c6468808	240
cfc94cdf JK	241	static inline struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	242	struct dentry new_dir, char new_name)
	243	{
	244	return ERR_PTR(-ENODEV);
	245	}
	246
9655ac4a GKH	247	static inline void debugfs_create_u8(const char *name, umode_t mode,
9655ac4a GKH	248	struct dentry parent, u8 value) { }
1da177e4	249
313f5dbb GKH	250	static inline void debugfs_create_u16(const char *name, umode_t mode,
313f5dbb GKH	251	struct dentry parent, u16 value) { }
1da177e4	252
2b07021a GKH	253	static inline void debugfs_create_u32(const char *name, umode_t mode,
2b07021a GKH	254	struct dentry parent, u32 value) { }
1da177e4	255
ad26221f GKH	256	static inline void debugfs_create_u64(const char *name, umode_t mode,
ad26221f GKH	257	struct dentry parent, u64 value) { }
8447891f	258
c2a737eb VK	259	static inline struct dentry debugfs_create_ulong(const char name,
	260	umode_t mode,
	261	struct dentry *parent,
	262	unsigned long *value)
	263	{
	264	return ERR_PTR(-ENODEV);
	265	}
	266
c7c11689 GKH	267	static inline void debugfs_create_x8(const char *name, umode_t mode,
c7c11689 GKH	268	struct dentry parent, u8 value) { }
2ebefc50	269
e40d38f2 GKH	270	static inline void debugfs_create_x16(const char *name, umode_t mode,
e40d38f2 GKH	271	struct dentry parent, u16 value) { }
2ebefc50	272
f5cb0a7e GKH	273	static inline void debugfs_create_x32(const char *name, umode_t mode,
f5cb0a7e GKH	274	struct dentry parent, u32 value) { }
2ebefc50	275
0864c408 GKH	276	static inline void debugfs_create_x64(const char *name, umode_t mode,
0864c408 GKH	277	struct dentry parent, u64 value) { }
3159269e	278
8e580263 GKH	279	static inline void debugfs_create_size_t(const char *name, umode_t mode,
	280	struct dentry parent, size_t value)
	281	{ }
8adb711f	282
9927c6fa GKH	283	static inline void debugfs_create_atomic_t(const char *name, umode_t mode,
	284	struct dentry *parent,
	285	atomic_t *value)
	286	{ }
5b880214	287
f4ae40a6	288	static inline struct dentry debugfs_create_bool(const char name, umode_t mode,
1da177e4	289	struct dentry *parent,
621a5f7a	290	bool *value)
1da177e4 LT	291	{
	292	return ERR_PTR(-ENODEV);
	293	}
	294
f4ae40a6	295	static inline struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	296	struct dentry *parent,
	297	struct debugfs_blob_wrapper *blob)
	298	{
	299	return ERR_PTR(-ENODEV);
	300	}
	301
ae91c925 GKH	302	static inline void debugfs_create_regset32(const char *name, umode_t mode,
	303	struct dentry *parent,
	304	struct debugfs_regset32 *regset)
1a087c6a	305	{
1a087c6a AR	306	}
1a087c6a AR	307
9761536e	308	static inline void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
5b880214 WY	309	int nregs, void __iomem base, char prefix)
5b880214 WY	310	{
5b880214 WY	311	}
5b880214 WY	312
c0f92ba9 FW	313	static inline bool debugfs_initialized(void)
	314	{
	315	return false;
	316	}
	317
c9c2c27d GKH	318	static inline void debugfs_create_u32_array(const char *name, umode_t mode,
	319	struct dentry parent, u32 array,
	320	u32 elements)
9fe2a701	321	{
9fe2a701 SV	322	}
9fe2a701 SV	323
98210b7f AS	324	static inline struct dentry debugfs_create_devm_seqfile(struct device dev,
	325	const char *name,
	326	struct dentry *parent,
	327	int (read_fn)(struct seq_file s,
	328	void *data))
	329	{
	330	return ERR_PTR(-ENODEV);
	331	}
	332
0642ef6f RF	333	static inline ssize_t debugfs_read_file_bool(struct file *file,
	334	char __user *user_buf,
	335	size_t count, loff_t *ppos)
	336	{
	337	return -ENODEV;
	338	}
	339
	340	static inline ssize_t debugfs_write_file_bool(struct file *file,
	341	const char __user *user_buf,
	342	size_t count, loff_t *ppos)
	343	{
	344	return -ENODEV;
	345	}
	346
1da177e4 LT	347	#endif
1da177e4 LT	348
d3504757 GU	349	/**
	350	* debugfs_create_xul - create a debugfs file that is used to read and write an
	351	* unsigned long value, formatted in hexadecimal
	352	* @name: a pointer to a string containing the name of the file to create.
	353	* @mode: the permission that the file should have
	354	* @parent: a pointer to the parent dentry for this file. This should be a
	355	* directory dentry if set. If this parameter is %NULL, then the
	356	* file will be created in the root of the debugfs filesystem.
	357	* @value: a pointer to the variable that the file should read to and write
	358	* from.
	359	*/
	360	static inline void debugfs_create_xul(const char *name, umode_t mode,
	361	struct dentry *parent,
	362	unsigned long *value)
	363	{
	364	if (sizeof(*value) == sizeof(u32))
	365	debugfs_create_x32(name, mode, parent, (u32 *)value);
	366	else
	367	debugfs_create_x64(name, mode, parent, (u64 *)value);
	368	}
	369
1da177e4	370	#endif