Facter::Util:IP.get_interface_value calls get_bonding_interface for every possible value. However the result is only used for macaddress lookups.
Since get_bonding_interface makes a call to `ip link show` this can become a performance issue if many interfaces are present.
Already affects facter 1.5.3.
risk: low (no need for separate test/validation, covered by schema test)
probability: medium (any IP/mac fact)
severity: low (performance only)
test layer: unit