Apple wood. Some rot looks like

So I drove about an hour 1 way to chop down a living apple tree. Had nice looking green leaves on it but I started getting into branches with some soft spots and holes in them and I just won't take that wood, the trunk was pretty solid. Got it home and went at it with the axe and found some had some white vaines running through the wood and pretty easy to split compared to my other apple. Feels pretty light aswell. Only a couple pieces so far had the white looking rot running through it. The reast looks pretty solid. I can get some pics soon but not sure if I wanna stack it with my primo wood for my smoker or stack it in the wood for cooking over fire pit. I can get some pics up soon. Just kinda wondering what's safe to cook with here and get quality smoke. Pics soon!