selftests/net: l2_tos_ttl_inherit.sh: Set IPv6 addresses with "nodad".

[ Upstream commit e59370b2e96eb8e7e057a2a16e999ff385a3f2fb ]

The ping command can run before DAD completes. In that case, ping may
fail and break the selftest.

We don't need DAD here since we're working on isolated device pairs.

Fixes: b690842d12fd ("selftests/net: test l2 tunnel TOS/TTL inheriting")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/testing/selftests/net/l2_tos_ttl_inherit.sh b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh
index dca1e6f..e2574b0 100755 (executable)
--- a/tools/testing/selftests/net/l2_tos_ttl_inherit.sh
+++ b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh
@@ -137,8 +137,8 @@ setup() {
                if [ "$type" = "gre" ]; then
                        type="ip6gretap"
                fi
-               ip addr add fdd1:ced0:5d88:3fce::1/64 dev veth0
-               $ns ip addr add fdd1:ced0:5d88:3fce::2/64 dev veth1
+               ip addr add fdd1:ced0:5d88:3fce::1/64 dev veth0 nodad
+               $ns ip addr add fdd1:ced0:5d88:3fce::2/64 dev veth1 nodad
                ip link add name tep0 type $type $local_addr1 \
                remote fdd1:ced0:5d88:3fce::2 tos $test_tos ttl $test_ttl \
                $vxlan $geneve
@@ -170,8 +170,8 @@ setup() {
                ip addr add 198.19.0.1/24 brd + dev ${parent}0
                $ns ip addr add 198.19.0.2/24 brd + dev ${parent}1
        elif [ "$inner" = "6" ]; then
-               ip addr add fdd4:96cf:4eae:443b::1/64 dev ${parent}0
-               $ns ip addr add fdd4:96cf:4eae:443b::2/64 dev ${parent}1
+               ip addr add fdd4:96cf:4eae:443b::1/64 dev ${parent}0 nodad
+               $ns ip addr add fdd4:96cf:4eae:443b::2/64 dev ${parent}1 nodad
        fi
 }