Boyd scored twice in Saturday's Scottish Cup Final win over Queen of the South taking his tally for the season to 25 in as many starts.
However, he has rarely featured in Europe where Smith has preferred to deploy Jean-Claude Darcheville or Daniel Cousin in a 4-5-1 formation.
But the Rangers boss believes Boyd still has an important role to play.
"He's helped us to win two cups this season with four goals in the two games.
"He is one of those players who is always liable to get you a goal.
"I'm quite happy to have him and there is no problem in that respect from my point of view.
"We have played him in a lot of games and he has finished up our top goalscorer.
"I don't see it as a great problem but I know, from his point of view, he wants to play more often than he has this season. And maybe next season he will play more often.
"The stronger you get as a team, the more productive Kris Boyd will be."