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>
Leaving include/asm/arch alone for now. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>