From: "Alexey Dobriyan" <adobriyan@gmail.com>
Date: Fri, 14 Nov 2008 01:53:26 +0300

quoted text
> Something is wrong with read_pnet() as nobody suggested to mass use it
> or send a patch doing it.
> 
>         #ifdef CONFIG_NET_NS
>                 ib->ib_net = net;
>         #endif
> 
> It's _obvious_ from this code that it's a C assignment or nop. It's also
> obvious depending on what config option.

obvious, but ugly

quoted text
>         write_pnet(&ib->ib_net, net);
> 
> What is & operator doing here? Is it important? '&' is syntaxic noise.

'&' is necessary for the assignment.
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