Re: [PATCH] ipip, sit: copy parms.name after register_netdevice

[David Miller]

From: Ted Feng <artisdom@xxxxxxxxx>
Date: Thu, 8 Dec 2011 18:46:21 +0800

> From: Ted Feng <artisdom@xxxxxxxxx>
> 
> Same fix as 731abb9cb2 for ipip and sit tunnel.
> Commit 1c5cae815d removed an explicit call to dev_alloc_name in
> ipip_tunnel_locate and ipip6_tunnel_locate, because register_netdevice
> will now create a valid name, however the tunnel keeps a copy of the
> name in the private parms structure. Fix this by copying the name back
> after register_netdevice has successfully returned.
> 
> This shows up if you do a simple tunnel add, followed by a tunnel show:
> 
> $ sudo ip tunnel add mode ipip remote 10.2.20.211
> $ ip tunnel
> tunl0: ip/ip  remote any  local any  ttl inherit  nopmtudisc
> tunl%d: ip/ip  remote 10.2.20.211  local any  ttl inherit
> $ sudo ip tunnel add mode sit remote 10.2.20.212
> $ ip tunnel
> sit0: ipv6/ip  remote any  local any  ttl 64  nopmtudisc 6rd-prefix 2002::/16
> sit%d: ioctl 89f8 failed: No such device
> sit%d: ipv6/ip  remote 10.2.20.212  local any  ttl inherit
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Ted Feng <artisdom@xxxxxxxxx>

Applied.
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