Wenger told reporters: "I think overall Podolski is happy here. If you look at the number of games he has played, with the number of goals he has scored and the number of assists he has, he is a very efficient player.
"He has over 100 caps with Germany and does not have one cap in the middle. Over 100 caps on the left. You cannot say it is not his job. He is happy there. He made a great international career there."
Podolski has scored 12 goals in 24 appearances for the Gunners in all competitions this season.