netdev - Re: [PATCH 3/3] ipip: add module alias for tunl0 tunnel device

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Date:	Tue, 30 Nov 2010 08:19:37 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 3/3] ipip: add module alias for tunl0 tunnel device

Le lundi 29 novembre 2010 à 11:47 -0800, Stephen Hemminger a écrit :
> pièce jointe document texte brut (ipip-alias.patch)
> If ipip is built as a module the 'ip tunnel add' command would fail because
> the ipip module was not being autoloaded.  Adding an alias for
> the tunl0 device name cause dev_load() to autoload it when needed.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
> 
> --- a/net/ipv4/ipip.c	2010-11-29 11:40:25.026277890 -0800
> +++ b/net/ipv4/ipip.c	2010-11-29 11:41:05.790681069 -0800
> @@ -913,3 +913,4 @@ static void __exit ipip_fini(void)
>  module_init(ipip_init);
>  module_exit(ipip_fini);
>  MODULE_LICENSE("GPL");
> +MODULE_ALIAS("tunl0");

I am not sure I understand you...

Here, I do have ipip built as a module, and I have no problem :

# lsmod|grep ipip
# ip tunnel add
cannot determine tunnel mode (ipip, gre or sit)
# lsmod|grep ipip
# ip tunnel add mode ipip
# lsmod|grep ipip
ipip                    7692  0 
tunnel4                 2949  1 ipip
# 

What am I missing ?


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