netdev - Re: [PATCH net] tuntap: synchronize through tfiles array instead of tun->numqueues

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Message-ID: <98fb0760-a772-ca1c-d97b-d8b70066c9aa@gmail.com>
Date:   Tue, 7 May 2019 07:47:35 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Jason Wang <jasowang@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org
Cc:     mst@...hat.com, YueHaibing <yuehaibing@...wei.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        "weiyongjun (A)" <weiyongjun1@...wei.com>
Subject: Re: [PATCH net] tuntap: synchronize through tfiles array instead of
 tun->numqueues



On 5/6/19 11:54 PM, Jason Wang wrote:
> 
> On 2019/5/7 上午11:41, Eric Dumazet wrote:
>>
>>>   
>> If you remove the test on (!numqueues),
>> the following might crash with a divide by zero...
> 
> 
> Indeed, let me post V2.

You probably want to fix tun_ebpf_select_queue() as well.