NeilBrown:
The code will fail with a warning if asked to transfer
more than 32 bytes at a time. So used max_transfer_size
interface to tell users about this.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>