The point is that the change is not a simple rename:

    struct foo *iterator;

    list_for_each_entry(iterator, &foo_list, list) {
     do_something_with(iterator);
    }

While the new version would be something like:

    list_for_each_entry_v2(iterator, &foo_list, list) {
     do_something_with(iterator);
    }

So the ’iterator’ variable may be removed, but as this is c, might also be reused multiple times, or come from some struct member, union, or whatever. So i presume something like this would have to be fixed case by case.