Quoted:
I'll be riding to Deals Gap this weekend. Is it OK to carry loaded in a motorcycle saddlebag? Do I need to declare if I'm pulled over?
Given that you have a valid carry permit (you state that you do, from Ohio) and TN recognizes it (we do), then you are good to go.
You have no duty to "declare" to a LEO if you are stopped, but many consider it only courtesy to do so. With a TN permit, they will
be notified you have a permit when they run your license (happens to be the same database, & the same number...how convenient!),
but probably not for an out-of-state permit.
Some recommend handing both your DL & HCP (handgun carry permit) to an officer if stopped.
It's your call to make...just remember that prudence, respect, and courtesy can go a long way.
David