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From: Randy Dunlap <rdunlap@infradead.org>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>,
	network dev <netdev@vger.kernel.org>,
	David Miller <davem@davemloft.net>, Jon Maloy <jmaloy@redhat.com>,
	Ying Xue <ying.xue@windriver.com>,
	tipc-discussion@lists.sourceforge.net
Subject: Re: [PATCH net] tipc: not enable tipc when ipv6 works as a module
Date: Mon, 17 Aug 2020 12:00:23 -0700	[thread overview]
Message-ID: <1b45393f-bc09-d981-03bd-14c4088178ad@infradead.org> (raw)
In-Reply-To: <CAM_iQpVkDg3WKik_j98gdvVirkQdaTQ2zzg8GVzBeij6i+aNnQ@mail.gmail.com>

On 8/17/20 11:55 AM, Cong Wang wrote:
> On Mon, Aug 17, 2020 at 11:49 AM Randy Dunlap <rdunlap@infradead.org> wrote:
>>
>> On 8/17/20 11:31 AM, Cong Wang wrote:
>>> On Sun, Aug 16, 2020 at 11:37 PM Xin Long <lucien.xin@gmail.com> wrote:
>>>>
>>>> On Mon, Aug 17, 2020 at 2:29 AM Cong Wang <xiyou.wangcong@gmail.com> wrote:
>>>>>
>>>>> 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.
>>>
>>> I am not a fan of IPV6=m, but disallowing it for one symbol seems
>>> too harsh.
>>
>> Hi,
>>
>> Maybe I'm not following you, but this doesn't disallow IPV6=m.
> 
> Well, by "disallowing IPV6=m" I meant "disallowing IPV6=m when
> enabling TIPC" for sure... Sorry that it misleads you to believe
> completely disallowing IPV6=m globally.
> 
>>
>> It just restricts how TIPC can be built, so that
>> TIPC=y and IPV6=m cannot happen together, which causes
>> a build error.
> 
> It also disallows TIPC=m and IPV6=m, right? In short, it disalows
> IPV6=m when TIPC is enabled. And this is exactly what I complain,
> as it looks too harsh.

I haven't tested that specifically, but that should work.
This patch won't prevent that from working.

We have loadable modules calling other loadable modules
all over the kernel.

-- 
~Randy


  reply	other threads:[~2020-08-17 19:00 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-16  9:32 [PATCH net] tipc: not enable tipc when ipv6 works as a module Xin Long
2020-08-16 18:29 ` Cong Wang
2020-08-17  6:49   ` Xin Long
2020-08-17 18:31     ` Cong Wang
2020-08-17 18:49       ` Randy Dunlap
2020-08-17 18:55         ` Cong Wang
2020-08-17 19:00           ` Randy Dunlap [this message]
2020-08-17 19:26             ` Cong Wang
2020-08-17 19:55               ` Randy Dunlap
2020-08-17 20:29                 ` Cong Wang
2020-08-17 20:43                   ` Randy Dunlap
2020-08-17 20:59                     ` Cong Wang
2020-08-17 21:39                       ` David Miller
2020-08-17 22:20                         ` Cong Wang
2020-08-18  7:59                           ` Xin Long
2020-08-17 21:37                   ` David Miller
2020-08-17 21:34           ` David Miller
2020-08-17  4:05 ` David Miller

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