Query on Decode stacktrace task

ajay08123132

Hi,
So i successfully decoded the stacktrace on the latest bug reported on syzkaller. But the vmlinux I've used is the downloaded one checked out to that commit on syzkaller where the bug was observed, some resources online suggests other method that is to checkout from my main kernel repo to that commit and recompile the config file given in syzkaller and then use new vmlinux file created to decode the stacktrace.

Are both methods okay and which should I use to complete the given task?