From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/include/linux/debugfs.h | 19 +++++++++++++++++--
1 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/kernel/include/linux/debugfs.h b/kernel/include/linux/debugfs.h
index 2357109..9a87215 100644
--- a/kernel/include/linux/debugfs.h
+++ b/kernel/include/linux/debugfs.h
@@ -45,7 +45,7 @@
extern struct dentry *arch_debugfs_dir;
-#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \
+#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); \
@@ -56,9 +56,15 @@
.open = __fops ## _open, \
.release = simple_attr_release, \
.read = debugfs_attr_read, \
- .write = debugfs_attr_write, \
+ .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 *);
@@ -101,6 +107,8 @@
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,
@@ -249,6 +257,13 @@
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)
{
--
Gitblit v1.6.2