netdev - Re: [PATCH net] tipc: not enable tipc when ipv6 works as a module

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Date:   Mon, 17 Aug 2020 14:49:50 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     network dev <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Jon Maloy <jmaloy@...hat.com>,
        Ying Xue <ying.xue@...driver.com>,
        tipc-discussion@...ts.sourceforge.net,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [PATCH net] tipc: not enable tipc when ipv6 works as a module

On Mon, Aug 17, 2020 at 2:29 AM Cong Wang <xiyou.wangcong@...il.com> wrote:
>
> On Sun, Aug 16, 2020 at 4:54 AM Xin Long <lucien.xin@...il.com> wrote:
> >
> > When using ipv6_dev_find() in one module, it requires ipv6 not to
> > work as a module. Otherwise, this error occurs in build:
> >
> >   undefined reference to `ipv6_dev_find'.
> >
> > So fix it by adding "depends on IPV6 || IPV6=n" to tipc/Kconfig,
> > as it does in sctp/Kconfig.
>
> Or put it into struct ipv6_stub?
Hi Cong,

That could be one way. We may do it when this new function becomes more common.
By now, I think it's okay to make TIPC depend on IPV6 || IPV6=n.

Thanks.