在golang中编写（for）的更好方法

I am working on a while loop which a for in Go as in below code

ele = path.Dir(str)
for ele != "." {
    functionA()
    ele = path.Dir(ele)
    if ele == "." {
        functionA()
        functionB()
    }
}

In the above code as you can see I am calling functionA twice based on a condition inside the while (for)

Is there a better and cleaner way to do this?

This is slightly different way to perform the same task.

UPDATE: Updated answer to reflect the new requirements.

ele := path.Dir(str)
if ele == "." {
    return
}
for ele != "." {
    functionA()
    ele = path.Dir(ele)
}
functionA()
functionB()