I got a warning using the latest mainline codes to start vms as following:
===================================================
WARNING: CPU: 1 PID: 1 at net/netlink/genetlink.c:383
genl_register_family+0x6c/0x76c
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc2-00886-g882ad2a2a8ff #43
...
Call trace:
genl_register_family+0x6c/0x76c
dp_init+0xa8/0x124
do_one_initcall+0x84/0x450
It is because that commit 9c5d03d36251 ("genetlink: start to validate
reserved header bytes") has missed the resv_start_op initialization
for dp_vport_genl_family, and commit ce48ebdd5651 ("genetlink: limit
the use of validation workarounds to old ops") add checking warning.
Add resv_start_op initialization for dp_vport_genl_family to fix it.
Fixes: 9c5d03d36251 ("genetlink: start to validate reserved header bytes")
Signed-off-by: Ziyang Xuan <[email protected]>
---
net/openvswitch/datapath.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 155263e73512..8b84869eb2ac 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2544,6 +2544,7 @@ struct genl_family dp_vport_genl_family __ro_after_init =
{
.parallel_ops = true,
.small_ops = dp_vport_genl_ops,
.n_small_ops = ARRAY_SIZE(dp_vport_genl_ops),
+ .resv_start_op = OVS_VPORT_CMD_SET + 1,
.mcgrps = &ovs_dp_vport_multicast_group,
.n_mcgrps = 1,
.module = THIS_MODULE,
--
2.25.1
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