ni_route_set_has_source
EXPORT_SYMBOL_GPL(ni_route_set_has_source);
if (!ni_route_set_has_source(routes, src))
bool ni_route_set_has_source(const struct ni_route_set *routes, const int src);
unittest(!ni_route_set_has_source(&DR.routes[0], O(0)),
unittest(ni_route_set_has_source(&DR.routes[0], O(1)),
unittest(ni_route_set_has_source(&DR.routes[0], O(5)),
unittest(ni_route_set_has_source(&DR.routes[0], O(9)),