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2018-03-17selftests: pmtu: Reverse return codes of functionsStefano Brivio
David suggests it's more intuitive to return non-zero on failures, and zero on success. No need to introduce tail 'return 0' in functions, they will return the exit code of the last command anyway. Suggested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07selftests: net: Introduce first PMTU testStefano Brivio
One single test implemented so far: test_pmtu_vti6_exception checks that the PMTU of a route exception, caused by a tunnel exceeding the link layer MTU, is affected by administrative changes of the tunnel MTU. Creation of the route exception is checked too. Requested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>