"In spite" is a bit of a stretch on 'songwriting' credit, as he 'just' wrote the 'solo' bit. But, rethinking, if we're counting the intro guitar line... it's..

"In spite" is a bit of a stretch on 'songwriting' credit, as he 'just' wrote the 'solo' bit. But, rethinking, if we're counting the intro guitar line... it's... a hook. It's not nothing. It's hard to think of the song without that little opening hook/riff. We could dig further and look at the only (AFAICR) Lennon/Harrison "Cry For A Shadow" as evidence of early songwriting, but given it's an instrumental, it's another stretch.