netdev - Re: [PATCHv2 net-next 1/2] route: add support for directed broadcast forwarding

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Date:   Tue, 3 Jul 2018 19:38:59 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     David Ahern <dsahern@...il.com>
Cc:     network dev <netdev@...r.kernel.org>, davem <davem@...emloft.net>,
        Davide Caratti <dcaratti@...hat.com>,
        Ido Schimmel <idosch@...sch.org>
Subject: Re: [PATCHv2 net-next 1/2] route: add support for directed broadcast forwarding

On Mon, Jul 2, 2018 at 11:05 PM, David Ahern <dsahern@...il.com> wrote:
> On 7/2/18 12:30 AM, Xin Long wrote:
>> @@ -2143,6 +2149,10 @@ static int devinet_conf_proc(struct ctl_table *ctl, int write,
>>                       if ((new_value == 0) && (old_value != 0))
>>                               rt_cache_flush(net);
>>
>> +             if (i == IPV4_DEVCONF_BC_FORWARDING - 1 ||
>> +                 new_value != old_value)
>> +                     rt_cache_flush(net);
>> +
>
> Shouldn't that be '&&' instead of '||' otherwise you are bumping the fib
> gen id any time the old and new values do not equal regardless of which
> setting is changed.
ah right, It's a copy-paste mistake, sorry