I'm having a hard time swallowing the interview Acman posted. In his heart, Grant Green was not "Funk"; I heard Grant Green play for himself, and I'm sure that was the truest music he ever played; this was in 58, before Blue Note.
If you listen to all of Grant's music like I have, you'll know that the funk thing is just not in his soul; plus that, non of his closest jazz friends were into funk. (musicians have jazz friends who are closer than brothers)
Some of the "funk" sounded more like jazz, and some of it sounded like Grant's heart wasn't in it. Gospel yes, but not funk.