Did you know, there is the Chinese Wushu Association, essentially the Chinese Martial Arts Association, which administers competitions and testing of various Chinese martial Arts.
The meaning of Gong Fu (kung fu) loosely translates into "to excell". As such a Chef, a landscaper, a seamstress can all have Gong Fu. Any profession can be practiced with Gong Fu, but Gong Fu is not a martial art.