[thirdparty/kernel/stable.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 */
};

struct debugfs_u32_array {
	u32 *array;
	u32 n_elements;
};

extern struct dentry *arch_debugfs_dir;

#define DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, __is_signed)	\
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	 = (__is_signed) ? debugfs_attr_write_signed : debugfs_attr_write,	\
	.llseek  = no_llseek,						\
}

#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, false)

#define DEFINE_DEBUGFS_ATTRIBUTE_SIGNED(__fops, __get, __set, __fmt)	\
	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, true)

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

void debugfs_lookup_and_remove(const char *name, struct dentry *parent);

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);
ssize_t debugfs_attr_write_signed(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);
void 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);
void debugfs_create_bool(const char *name, umode_t mode, struct dentry *parent,
			 bool *value);
void debugfs_create_str(const char *name, umode_t mode,
			struct dentry *parent, char **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,
			      struct debugfs_u32_array *array);

void 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);

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

/**
 * struct debugfs_cancellation - cancellation data
 * @list: internal, for keeping track
 * @cancel: callback to call
 * @cancel_data: extra data for the callback to call
 */
struct debugfs_cancellation {
	struct list_head list;
	void (*cancel)(struct dentry *, void *);
	void *cancel_data;
};

void __acquires(cancellation)
debugfs_enter_cancellation(struct file *file,
			   struct debugfs_cancellation *cancellation);
void __releases(cancellation)
debugfs_leave_cancellation(struct file *file,
			   struct debugfs_cancellation *cancellation);

#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)
{ }

static inline void debugfs_lookup_and_remove(const char *name,
					     struct dentry *parent)
{ }

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 ssize_t debugfs_attr_write_signed(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 void debugfs_create_ulong(const char *name, umode_t mode,
					struct dentry *parent,
					unsigned long *value) { }

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 void debugfs_create_bool(const char *name, umode_t mode,
				       struct dentry *parent, bool *value) { }

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

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,
					    struct debugfs_u32_array *array)
{
}

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

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;
}

static inline ssize_t debugfs_read_file_str(struct file *file,
					    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
a2b992c8 JK	41	struct debugfs_u32_array {
	42	u32 *array;
	43	u32 n_elements;
	44	};
	45
ae79cdaa	46	extern struct dentry *arch_debugfs_dir;
ae79cdaa	47
d472cf79	48	#define DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, __is_signed) \
7f847dd3 AB	49	static int __fops ## _open(struct inode inode, struct file file) \
	50	{ \
	51	__simple_attr_check_format(__fmt, 0ull); \
	52	return simple_attr_open(inode, file, __get, __set, __fmt); \
	53	} \
	54	static const struct file_operations __fops = { \
	55	.owner = THIS_MODULE, \
	56	.open = __fops ## _open, \
	57	.release = simple_attr_release, \
	58	.read = debugfs_attr_read, \
d472cf79	59	.write = (__is_signed) ? debugfs_attr_write_signed : debugfs_attr_write, \
895ce6c8	60	.llseek = no_llseek, \
7f847dd3 AB	61	}
7f847dd3 AB	62
d472cf79 AM	63	#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \
	64	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, false)
	65
	66	#define DEFINE_DEBUGFS_ATTRIBUTE_SIGNED(__fops, __get, __set, __fmt) \
	67	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, true)
	68
4250b047 KK	69	typedef struct vfsmount (debugfs_automount_t)(struct dentry , void );
4250b047 KK	70
1da177e4	71	#if defined(CONFIG_DEBUG_FS)
3634634e	72
a7c5437b OS	73	struct dentry debugfs_lookup(const char name, struct dentry *parent);
a7c5437b OS	74
f4ae40a6	75	struct dentry debugfs_create_file(const char name, umode_t mode,
1da177e4	76	struct dentry parent, void data,
99ac48f5	77	const struct file_operations *fops);
c6468808 NS	78	struct dentry debugfs_create_file_unsafe(const char name, umode_t mode,
	79	struct dentry parent, void data,
	80	const struct file_operations *fops);
1da177e4	81
526ee72d GKH	82	void debugfs_create_file_size(const char *name, umode_t mode,
	83	struct dentry parent, void data,
	84	const struct file_operations *fops,
	85	loff_t file_size);
e59b4e91	86
1da177e4 LT	87	struct dentry debugfs_create_dir(const char name, struct dentry *parent);
1da177e4 LT	88
66f54963 PO	89	struct dentry debugfs_create_symlink(const char name, struct dentry *parent,
	90	const char *dest);
	91
77b3da6e AV	92	struct dentry debugfs_create_automount(const char name,
77b3da6e AV	93	struct dentry *parent,
93faccbb	94	debugfs_automount_t f,
77b3da6e AV	95	void *data);
77b3da6e AV	96
1da177e4	97	void debugfs_remove(struct dentry *dentry);
a3d1e7eb	98	#define debugfs_remove_recursive debugfs_remove
1da177e4	99
dec9b2f1 GKH	100	void debugfs_lookup_and_remove(const char name, struct dentry parent);
dec9b2f1 GKH	101
055ab8e3	102	const struct file_operations debugfs_real_fops(const struct file filp);
7c8d4698	103
e9117a5a NS	104	int debugfs_file_get(struct dentry *dentry);
	105	void debugfs_file_put(struct dentry *dentry);
	106
c6468808 NS	107	ssize_t debugfs_attr_read(struct file file, char __user buf,
	108	size_t len, loff_t *ppos);
	109	ssize_t debugfs_attr_write(struct file file, const char __user buf,
	110	size_t len, loff_t *ppos);
d472cf79 AM	111	ssize_t debugfs_attr_write_signed(struct file file, const char __user buf,
d472cf79 AM	112	size_t len, loff_t *ppos);
c6468808	113
cfc94cdf JK	114	struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	115	struct dentry new_dir, const char new_name);
	116
9655ac4a GKH	117	void debugfs_create_u8(const char name, umode_t mode, struct dentry parent,
9655ac4a GKH	118	u8 *value);
313f5dbb GKH	119	void debugfs_create_u16(const char name, umode_t mode, struct dentry parent,
313f5dbb GKH	120	u16 *value);
2b07021a GKH	121	void debugfs_create_u32(const char name, umode_t mode, struct dentry parent,
2b07021a GKH	122	u32 *value);
ad26221f GKH	123	void debugfs_create_u64(const char name, umode_t mode, struct dentry parent,
ad26221f GKH	124	u64 *value);
fb05b14c GKH	125	void debugfs_create_ulong(const char name, umode_t mode, struct dentry parent,
fb05b14c GKH	126	unsigned long *value);
c7c11689 GKH	127	void debugfs_create_x8(const char name, umode_t mode, struct dentry parent,
c7c11689 GKH	128	u8 *value);
e40d38f2 GKH	129	void debugfs_create_x16(const char name, umode_t mode, struct dentry parent,
e40d38f2 GKH	130	u16 *value);
f5cb0a7e GKH	131	void debugfs_create_x32(const char name, umode_t mode, struct dentry parent,
f5cb0a7e GKH	132	u32 *value);
0864c408 GKH	133	void debugfs_create_x64(const char name, umode_t mode, struct dentry parent,
0864c408 GKH	134	u64 *value);
8e580263 GKH	135	void debugfs_create_size_t(const char *name, umode_t mode,
8e580263 GKH	136	struct dentry parent, size_t value);
9927c6fa GKH	137	void debugfs_create_atomic_t(const char *name, umode_t mode,
9927c6fa GKH	138	struct dentry parent, atomic_t value);
393b0638 GKH	139	void debugfs_create_bool(const char name, umode_t mode, struct dentry parent,
393b0638 GKH	140	bool *value);
9af0440e PZ	141	void debugfs_create_str(const char *name, umode_t mode,
9af0440e PZ	142	struct dentry parent, char *value);
1da177e4	143
f4ae40a6	144	struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	145	struct dentry *parent,
dd308bc3 ME	146	struct debugfs_blob_wrapper *blob);
c0f92ba9	147
ae91c925 GKH	148	void debugfs_create_regset32(const char *name, umode_t mode,
	149	struct dentry *parent,
	150	struct debugfs_regset32 *regset);
1a087c6a	151
9761536e JP	152	void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
9761536e JP	153	int nregs, void __iomem base, char prefix);
1a087c6a	154
c9c2c27d	155	void debugfs_create_u32_array(const char *name, umode_t mode,
a2b992c8 JK	156	struct dentry *parent,
a2b992c8 JK	157	struct debugfs_u32_array *array);
9fe2a701	158
0d519cbf GKH	159	void debugfs_create_devm_seqfile(struct device dev, const char name,
	160	struct dentry *parent,
	161	int (read_fn)(struct seq_file s, void *data));
98210b7f	162
c0f92ba9 FW	163	bool debugfs_initialized(void);
c0f92ba9 FW	164
0642ef6f RF	165	ssize_t debugfs_read_file_bool(struct file file, char __user user_buf,
	166	size_t count, loff_t *ppos);
	167
	168	ssize_t debugfs_write_file_bool(struct file file, const char __user user_buf,
	169	size_t count, loff_t *ppos);
	170
9af0440e PZ	171	ssize_t debugfs_read_file_str(struct file file, char __user user_buf,
	172	size_t count, loff_t *ppos);
	173
8c88a474 JB	174	/**
	175	* struct debugfs_cancellation - cancellation data
	176	* @list: internal, for keeping track
	177	* @cancel: callback to call
	178	* @cancel_data: extra data for the callback to call
	179	*/
	180	struct debugfs_cancellation {
	181	struct list_head list;
	182	void (cancel)(struct dentry , void *);
	183	void *cancel_data;
	184	};
	185
	186	void __acquires(cancellation)
	187	debugfs_enter_cancellation(struct file *file,
	188	struct debugfs_cancellation *cancellation);
	189	void __releases(cancellation)
	190	debugfs_leave_cancellation(struct file *file,
	191	struct debugfs_cancellation *cancellation);
	192
1da177e4	193	#else
a7a76cef RD	194
	195	#include <linux/err.h>
	196
98210b7f	197	/*
1da177e4 LT	198	* We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
	199	* so users have a chance to detect if there was a real error or not. We don't
	200	* want to duplicate the design decision mistakes of procfs and devfs again.
	201	*/
	202
a7c5437b OS	203	static inline struct dentry debugfs_lookup(const char name,
	204	struct dentry *parent)
	205	{
	206	return ERR_PTR(-ENODEV);
	207	}
	208
f4ae40a6	209	static inline struct dentry debugfs_create_file(const char name, umode_t mode,
bde11d79 JD	210	struct dentry parent, void data,
bde11d79 JD	211	const struct file_operations *fops)
1da177e4 LT	212	{
	213	return ERR_PTR(-ENODEV);
	214	}
	215
c2a737eb VK	216	static inline struct dentry debugfs_create_file_unsafe(const char name,
	217	umode_t mode, struct dentry *parent,
	218	void *data,
	219	const struct file_operations *fops)
	220	{
	221	return ERR_PTR(-ENODEV);
	222	}
	223
526ee72d GKH	224	static inline void debugfs_create_file_size(const char *name, umode_t mode,
	225	struct dentry parent, void data,
	226	const struct file_operations *fops,
	227	loff_t file_size)
	228	{ }
e59b4e91	229
1da177e4 LT	230	static inline struct dentry debugfs_create_dir(const char name,
	231	struct dentry *parent)
	232	{
	233	return ERR_PTR(-ENODEV);
	234	}
	235
66f54963 PO	236	static inline struct dentry debugfs_create_symlink(const char name,
	237	struct dentry *parent,
	238	const char *dest)
	239	{
	240	return ERR_PTR(-ENODEV);
	241	}
	242
94e1dec7 JW	243	static inline struct dentry debugfs_create_automount(const char name,
94e1dec7 JW	244	struct dentry *parent,
4250b047	245	debugfs_automount_t f,
94e1dec7 JW	246	void *data)
	247	{
	248	return ERR_PTR(-ENODEV);
	249	}
	250
1da177e4 LT	251	static inline void debugfs_remove(struct dentry *dentry)
	252	{ }
	253
9505e637 HS	254	static inline void debugfs_remove_recursive(struct dentry *dentry)
	255	{ }
	256
dec9b2f1 GKH	257	static inline void debugfs_lookup_and_remove(const char *name,
	258	struct dentry *parent)
	259	{ }
	260
f50caa9b AB	261	const struct file_operations debugfs_real_fops(const struct file filp);
f50caa9b AB	262
e9117a5a NS	263	static inline int debugfs_file_get(struct dentry *dentry)
	264	{
	265	return 0;
	266	}
	267
	268	static inline void debugfs_file_put(struct dentry *dentry)
	269	{ }
	270
7f847dd3 AB	271	static inline ssize_t debugfs_attr_read(struct file file, char __user buf,
	272	size_t len, loff_t *ppos)
	273	{
	274	return -ENODEV;
	275	}
	276
	277	static inline ssize_t debugfs_attr_write(struct file *file,
	278	const char __user *buf,
	279	size_t len, loff_t *ppos)
d472cf79 AM	280	{
	281	return -ENODEV;
	282	}
	283
	284	static inline ssize_t debugfs_attr_write_signed(struct file *file,
	285	const char __user *buf,
	286	size_t len, loff_t *ppos)
7f847dd3 AB	287	{
	288	return -ENODEV;
	289	}
c6468808	290
cfc94cdf JK	291	static inline struct dentry debugfs_rename(struct dentry old_dir, struct dentry *old_dentry,
	292	struct dentry new_dir, char new_name)
	293	{
	294	return ERR_PTR(-ENODEV);
	295	}
	296
9655ac4a GKH	297	static inline void debugfs_create_u8(const char *name, umode_t mode,
9655ac4a GKH	298	struct dentry parent, u8 value) { }
1da177e4	299
313f5dbb GKH	300	static inline void debugfs_create_u16(const char *name, umode_t mode,
313f5dbb GKH	301	struct dentry parent, u16 value) { }
1da177e4	302
2b07021a GKH	303	static inline void debugfs_create_u32(const char *name, umode_t mode,
2b07021a GKH	304	struct dentry parent, u32 value) { }
1da177e4	305
ad26221f GKH	306	static inline void debugfs_create_u64(const char *name, umode_t mode,
ad26221f GKH	307	struct dentry parent, u64 value) { }
8447891f	308
fb05b14c GKH	309	static inline void debugfs_create_ulong(const char *name, umode_t mode,
	310	struct dentry *parent,
	311	unsigned long *value) { }
c2a737eb	312
c7c11689 GKH	313	static inline void debugfs_create_x8(const char *name, umode_t mode,
c7c11689 GKH	314	struct dentry parent, u8 value) { }
2ebefc50	315
e40d38f2 GKH	316	static inline void debugfs_create_x16(const char *name, umode_t mode,
e40d38f2 GKH	317	struct dentry parent, u16 value) { }
2ebefc50	318
f5cb0a7e GKH	319	static inline void debugfs_create_x32(const char *name, umode_t mode,
f5cb0a7e GKH	320	struct dentry parent, u32 value) { }
2ebefc50	321
0864c408 GKH	322	static inline void debugfs_create_x64(const char *name, umode_t mode,
0864c408 GKH	323	struct dentry parent, u64 value) { }
3159269e	324
8e580263 GKH	325	static inline void debugfs_create_size_t(const char *name, umode_t mode,
	326	struct dentry parent, size_t value)
	327	{ }
8adb711f	328
9927c6fa GKH	329	static inline void debugfs_create_atomic_t(const char *name, umode_t mode,
	330	struct dentry *parent,
	331	atomic_t *value)
	332	{ }
5b880214	333
393b0638 GKH	334	static inline void debugfs_create_bool(const char *name, umode_t mode,
393b0638 GKH	335	struct dentry parent, bool value) { }
1da177e4	336
9af0440e PZ	337	static inline void debugfs_create_str(const char *name, umode_t mode,
	338	struct dentry *parent,
	339	char **value)
	340	{ }
	341
f4ae40a6	342	static inline struct dentry debugfs_create_blob(const char name, umode_t mode,
dd308bc3 ME	343	struct dentry *parent,
	344	struct debugfs_blob_wrapper *blob)
	345	{
	346	return ERR_PTR(-ENODEV);
	347	}
	348
ae91c925 GKH	349	static inline void debugfs_create_regset32(const char *name, umode_t mode,
	350	struct dentry *parent,
	351	struct debugfs_regset32 *regset)
1a087c6a	352	{
1a087c6a AR	353	}
1a087c6a AR	354
9761536e	355	static inline void debugfs_print_regs32(struct seq_file s, const struct debugfs_reg32 regs,
5b880214 WY	356	int nregs, void __iomem base, char prefix)
5b880214 WY	357	{
5b880214 WY	358	}
5b880214 WY	359
c0f92ba9 FW	360	static inline bool debugfs_initialized(void)
	361	{
	362	return false;
	363	}
	364
c9c2c27d	365	static inline void debugfs_create_u32_array(const char *name, umode_t mode,
a2b992c8 JK	366	struct dentry *parent,
a2b992c8 JK	367	struct debugfs_u32_array *array)
9fe2a701	368	{
9fe2a701 SV	369	}
9fe2a701 SV	370
0d519cbf GKH	371	static inline void debugfs_create_devm_seqfile(struct device *dev,
	372	const char *name,
	373	struct dentry *parent,
	374	int (read_fn)(struct seq_file s,
	375	void *data))
98210b7f	376	{
98210b7f AS	377	}
98210b7f AS	378
0642ef6f RF	379	static inline ssize_t debugfs_read_file_bool(struct file *file,
	380	char __user *user_buf,
	381	size_t count, loff_t *ppos)
	382	{
	383	return -ENODEV;
	384	}
	385
	386	static inline ssize_t debugfs_write_file_bool(struct file *file,
	387	const char __user *user_buf,
	388	size_t count, loff_t *ppos)
	389	{
	390	return -ENODEV;
	391	}
	392
9af0440e PZ	393	static inline ssize_t debugfs_read_file_str(struct file *file,
	394	char __user *user_buf,
	395	size_t count, loff_t *ppos)
	396	{
	397	return -ENODEV;
	398	}
	399
1da177e4 LT	400	#endif
1da177e4 LT	401
d3504757 GU	402	/**
	403	* debugfs_create_xul - create a debugfs file that is used to read and write an
	404	* unsigned long value, formatted in hexadecimal
	405	* @name: a pointer to a string containing the name of the file to create.
	406	* @mode: the permission that the file should have
	407	* @parent: a pointer to the parent dentry for this file. This should be a
	408	* directory dentry if set. If this parameter is %NULL, then the
	409	* file will be created in the root of the debugfs filesystem.
	410	* @value: a pointer to the variable that the file should read to and write
	411	* from.
	412	*/
	413	static inline void debugfs_create_xul(const char *name, umode_t mode,
	414	struct dentry *parent,
	415	unsigned long *value)
	416	{
	417	if (sizeof(*value) == sizeof(u32))
	418	debugfs_create_x32(name, mode, parent, (u32 *)value);
	419	else
	420	debugfs_create_x64(name, mode, parent, (u64 *)value);
	421	}
	422
1da177e4	423	#endif