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Commit 902b5417 authored by Sabrina Dubroca's avatar Sabrina Dubroca Committed by David S. Miller
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selftests: pmtu: maximum MTU for vti4 is 2^16-1-20 



Since commit 82612de1 ("ip_tunnel: restore binding to ifaces with a
large mtu"), the maximum MTU for vti4 is based on IP_MAX_MTU instead of
the mysterious constant 0xFFF8.  This makes this selftest fail.

Fixes: 82612de1 ("ip_tunnel: restore binding to ifaces with a large mtu")
Signed-off-by: default avatarSabrina Dubroca <sd@queasysnail.net>
Acked-by: default avatarStefano Brivio <sbrivio@redhat.com>
Acked-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 63cc357f

tools/testing/selftests/net/pmtu.sh

+1 −1
Original line number Diff line number Diff line
@@ -334,7 +334,7 @@ test_pmtu_vti4_link_add_mtu() { 
	fail=0



	min=68

	max=$((65528 - 20))

	max=$((65535 - 20))

	# Check invalid values first

	for v in $((min - 1)) $((max + 1)); do

		${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10 2>/dev/null