netdev - Re: [PATCH net-next] netlink: Add nla_memdup() to wrap kmemdup() use on nlattr

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Date:   Wed, 26 Oct 2016 11:52:38 +0200
From:   Thomas Graf <tgraf@...g.ch>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     davem@...emloft.net, daniel@...earbox.net, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org
Subject: Re: [PATCH net-next] netlink: Add nla_memdup() to wrap kmemdup() use
 on nlattr

On 10/26/16 at 10:59am, Johannes Berg wrote:
> 
> >  /**
> > + * nla_memdup - duplicate attribute memory (kmemdup)
> > + * @src: netlink attribute to duplicate from
> > + * @gfp: GFP mask
> 
> Actually, is there any point in passing a GFP mask? None of the current
> users need it, and it seems fairly unlikely to be needed since this is
> typically used on the netlink input path, where you surely shouldn't
> need GFP_ATOMIC or so?

I'm fine either way. I didn't want to make assumptions which need
later changes. It's not hurting either and the function prototype
is very small.