The patch below does the following cleanups for the sysfs code:
- remove the unused global function sysfs_mknod
- make some structs and functions static

Please check whether this patch is correct, or whether some of the
things I made static should be used globally in the forseeable future.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>