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-rw-r--r--include/linux/debugfs.h112
1 files changed, 63 insertions, 49 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 43efcc49f061..f60674692d36 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -35,6 +35,12 @@ 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;
@@ -67,10 +73,10 @@ struct dentry *debugfs_create_file_unsafe(const char *name, umode_t mode,
struct dentry *parent, void *data,
const struct file_operations *fops);
-struct dentry *debugfs_create_file_size(const char *name, umode_t mode,
- struct dentry *parent, void *data,
- const struct file_operations *fops,
- loff_t file_size);
+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);
@@ -85,6 +91,8 @@ struct dentry *debugfs_create_automount(const char *name,
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);
@@ -102,12 +110,12 @@ 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_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_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,
@@ -120,8 +128,10 @@ 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);
+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,
@@ -135,12 +145,12 @@ 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 *parent,
+ struct debugfs_u32_array *array);
-struct dentry *debugfs_create_devm_seqfile(struct device *dev, const char *name,
- struct dentry *parent,
- int (*read_fn)(struct seq_file *s,
- void *data));
+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);
@@ -150,6 +160,9 @@ ssize_t debugfs_read_file_bool(struct file *file, char __user *user_buf,
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);
+
#else
#include <linux/err.h>
@@ -181,13 +194,11 @@ static inline struct dentry *debugfs_create_file_unsafe(const char *name,
return ERR_PTR(-ENODEV);
}
-static inline struct dentry *debugfs_create_file_size(const char *name, umode_t mode,
- struct dentry *parent, void *data,
- const struct file_operations *fops,
- loff_t file_size)
-{
- 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)
@@ -216,6 +227,10 @@ 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)
@@ -251,23 +266,15 @@ static inline void debugfs_create_u8(const char *name, umode_t mode,
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_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_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) { }
@@ -290,12 +297,13 @@ static inline void debugfs_create_atomic_t(const char *name, umode_t mode,
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 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,
@@ -321,18 +329,17 @@ static inline bool debugfs_initialized(void)
}
static inline void debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent, u32 *array,
- u32 elements)
+ struct dentry *parent,
+ struct debugfs_u32_array *array)
{
}
-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))
+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))
{
- return ERR_PTR(-ENODEV);
}
static inline ssize_t debugfs_read_file_bool(struct file *file,
@@ -349,6 +356,13 @@ static inline ssize_t debugfs_write_file_bool(struct file *file,
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
/**
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.