From: Danielle Ratson danieller@nvidia.com
[ Upstream commit bef68e201e538eaa3a91f97aae8161eb2d0a8ed7 ]
Setting the IPv6 address generation mode of a net device during its creation never worked, but after commit b0ad3c179059 ("rtnetlink: call validate_linkmsg in rtnl_create_link") it explicitly fails [1]. The failure is caused by the fact that validate_linkmsg() is called before the net device is registered, when it still does not have an 'inet6_dev'.
Likewise, raising the net device before setting the address generation mode is meaningless, because by the time the mode is set, the address has already been generated.
Therefore, fix the test to first create the net device, then set its IPv6 address generation mode and finally bring it up.
[1] # ip link add name mydev addrgenmode eui64 type dummy RTNETLINK answers: Address family not supported by protocol
Fixes: ba95e7930957 ("selftests: forwarding: hw_stats_l3: Add a new test") Signed-off-by: Danielle Ratson danieller@nvidia.com Reviewed-by: Ido Schimmel idosch@nvidia.com Signed-off-by: Petr Machata petrm@nvidia.com Link: https://lore.kernel.org/r/f3b05d85b2bc0c3d6168fe8f7207c6c8365703db.168658004... Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/net/forwarding/hw_stats_l3.sh | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/net/forwarding/hw_stats_l3.sh b/tools/testing/selftests/net/forwarding/hw_stats_l3.sh index 9c1f76e108af1..1a936ffbacee7 100755 --- a/tools/testing/selftests/net/forwarding/hw_stats_l3.sh +++ b/tools/testing/selftests/net/forwarding/hw_stats_l3.sh @@ -84,8 +84,9 @@ h2_destroy()
router_rp1_200_create() { - ip link add name $rp1.200 up \ - link $rp1 addrgenmode eui64 type vlan id 200 + ip link add name $rp1.200 link $rp1 type vlan id 200 + ip link set dev $rp1.200 addrgenmode eui64 + ip link set dev $rp1.200 up ip address add dev $rp1.200 192.0.2.2/28 ip address add dev $rp1.200 2001:db8:1::2/64 ip stats set dev $rp1.200 l3_stats on @@ -256,9 +257,11 @@ reapply_config()
router_rp1_200_destroy
- ip link add name $rp1.200 link $rp1 addrgenmode none type vlan id 200 + ip link add name $rp1.200 link $rp1 type vlan id 200 + ip link set dev $rp1.200 addrgenmode none ip stats set dev $rp1.200 l3_stats on - ip link set dev $rp1.200 up addrgenmode eui64 + ip link set dev $rp1.200 addrgenmode eui64 + ip link set dev $rp1.200 up ip address add dev $rp1.200 192.0.2.2/28 ip address add dev $rp1.200 2001:db8:1::2/64 }