Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
With the current kbuild infrastructure in place no other changes are required for this to work. Signed-off-by: Greg Ungerer <gerg@uclinux.org>