--- zzzz-none-000/linux-2.6.39.4/include/linux/fs.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/include/linux/fs.h	2021-11-10 13:23:10.000000000 +0000
@@ -1016,11 +1016,11 @@
 	return -EINVAL;
 }
 #else /* !CONFIG_DEBUG_WRITECOUNT */
-static inline void file_take_write(struct file *filp) {}
-static inline void file_release_write(struct file *filp) {}
-static inline void file_reset_write(struct file *filp) {}
-static inline void file_check_state(struct file *filp) {}
-static inline int file_check_writeable(struct file *filp)
+static inline void file_take_write(struct file *filp __attribute__((unused))) {}
+static inline void file_release_write(struct file *filp __attribute__((unused))) {}
+static inline void file_reset_write(struct file *filp __attribute__((unused))) {}
+static inline void file_check_state(struct file *filp __attribute__((unused))) {}
+static inline int file_check_writeable(struct file *filp __attribute__((unused)))
 {
 	return 0;
 }
@@ -2209,11 +2209,11 @@
 	atomic_inc(&inode->i_readcount);
 }
 #else
-static inline void i_readcount_dec(struct inode *inode)
+static inline void i_readcount_dec(struct inode *inode __attribute__((unused)))
 {
 	return;
 }
-static inline void i_readcount_inc(struct inode *inode)
+static inline void i_readcount_inc(struct inode *inode __attribute__((unused)))
 {
 	return;
 }
@@ -2224,6 +2224,7 @@
 extern void free_write_pipe(struct file *);
 
 extern int kernel_read(struct file *, loff_t, char *, unsigned long);
+extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t);
 extern struct file * open_exec(const char *);
  
 /* fs/dcache.c -- generic fs support functions */
@@ -2340,7 +2341,7 @@
 			      size_t len, loff_t *ppos);
 extern int xip_truncate_page(struct address_space *mapping, loff_t from);
 #else
-static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
+static inline int xip_truncate_page(struct address_space *mapping __attribute__((unused)), loff_t from __attribute__((unused)))
 {
 	return 0;
 }
@@ -2548,7 +2549,7 @@
 };
 
 static inline void __attribute__((format(printf, 1, 2)))
-__simple_attr_check_format(const char *fmt, ...)
+__simple_attr_check_format(const char *fmt __attribute__((unused)), ...)
 {
 	/* don't do anything, just let the compiler check the arguments; */
 }