netdev - Re: [PATCH] openvswitch: change type of UPCALL_PID attribute to NLA

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Message-ID: <CAOrHB_Drgcyxa_2yR4QyyUTkADxT=mdRwPSKOgTrefpnQq5-=g@mail.gmail.com>
Date:   Wed, 25 Sep 2019 14:02:34 -0700
From:   Pravin Shelar <pshelar@....org>
To:     Li RongQing <lirongqing@...du.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH] openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC

On Tue, Sep 24, 2019 at 4:11 AM Li RongQing <lirongqing@...du.com> wrote:
>
> userspace openvswitch patch "(dpif-linux: Implement the API
> functions to allow multiple handler threads read upcall)"
> changes its type from U32 to UNSPEC, but leave the kernel
> unchanged
>
> and after kernel 6e237d099fac "(netlink: Relax attr validation
> for fixed length types)", this bug is exposed by the below
> warning
>
>         [   57.215841] netlink: 'ovs-vswitchd': attribute type 5 has an invalid length.
>
> Signed-off-by: Li RongQing <lirongqing@...du.com>

Acked-by: Pravin B Shelar <pshelar@....org>

Thanks,
Pravin.