linux-kernel - Re: [PATCH] tipc: fix modprobe tipc failed after switch order of device registration

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Date:   Fri, 17 May 2019 11:41:14 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     hujunwei4@...wei.com
Cc:     jon.maloy@...csson.com, ying.xue@...driver.com,
        netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, mingfangsen@...wei.com,
        zhoukang7@...wei.com, mousuanming@...wei.com
Subject: Re: [PATCH] tipc: fix modprobe tipc failed after switch order of
 device registration

From: hujunwei <hujunwei4@...wei.com>
Date: Fri, 17 May 2019 19:27:34 +0800

> From: Junwei Hu <hujunwei4@...wei.com>
> 
> Error message printed:
> modprobe: ERROR: could not insert 'tipc': Address family not
> supported by protocol.
> when modprobe tipc after the following patch: switch order of
> device registration, commit 7e27e8d6130c
> ("tipc: switch order of device registration to fix a crash")
> 
> Because sock_create_kern(net, AF_TIPC, ...) is called by
> tipc_topsrv_create_listener() in the initialization process
> of tipc_net_ops, tipc_socket_init() must be execute before that.
> 
> I move tipc_socket_init() into function tipc_init_net().
> 
> Fixes: 7e27e8d6130c
> ("tipc: switch order of device registration to fix a crash")
> Signed-off-by: Junwei Hu <hujunwei4@...wei.com>
> Reported-by: Wang Wang <wangwang2@...wei.com>
> Reviewed-by: Kang Zhou <zhoukang7@...wei.com>
> Reviewed-by: Suanming Mou <mousuanming@...wei.com>

Applied.