It's literally THE unsafe part of the code. It's the only part of code that can invoke UB. fn do_something() { unsafe { ... } } // Somewhere in th

It's literally THE unsafe part of the code. It's the only part of code that can invoke UB. fn do_something() { unsafe { ... } } // Somewhere in the program do_something(); Doesn't matter where "do_something" is used and how much. The only possibly problematic part of this code is the unsafe block. You only audit it.