Re: [ovs-dev] [PATCH net] openvswitch: add missing resv_start_op initialization for dp_vport_genl_family

From: Ziyang Xuan (William)
Date: Mon Oct 31 2022 - 08:28:00 EST


> On 10/31/22 09:12, Ziyang Xuan via dev wrote:
>> 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 <william.xuanziyang@xxxxxxxxxx>
>> ---
>
> Hi, Ziyang Xuan. Thanks for the patch!
>
> But it looks like Jakub already fixed that issue a couple of days ago:
> https://git.kernel.org/netdev/net/c/e4ba4554209f
>

That's fine. Ignore this.

Thank you.

> Best regards, Ilya Maximets.
>
> .
>