Yasuke was not a Samurai, there is no evidence he actually was besides speculation by some western "academics", based on very subjective interpretations of paintings, decorative pieces, or other second hand evidence. He was definitely a weapon bearer under Oda Nobanuga though only for a little over a year.
It is truly only weird white people who claim he was an actual samurai. I think even wikipedia has abandoned the samurai angle. Edit - Afrocentrists as well but 99% of the people responsible for spreading this silly narrative are white.
(Minor in Japanese Culture and History)