netdev - Re: [RFC 1/2] genetlink: introduce pre_doit/post

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Message-ID: <1285886690.5137.28.camel@jlt3.sipsolutions.net>
Date:	Fri, 01 Oct 2010 00:44:50 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Julian Calaby <julian.calaby@...il.com>
Cc:	netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
	tgraf@...g.ch
Subject: Re: [RFC 1/2] genetlink: introduce pre_doit/post_doit hooks

On Fri, 2010-10-01 at 08:41 +1000, Julian Calaby wrote:

> >  d) include two private pointers in each info
> >    struct passed between all these operations
> >    including doit(). (It's two because I'll
> >    need two in nl80211 -- can be extended.)
> 
> Stupid question:
> 
> Why not have a priv struct rather than an arbitrary array of two pointers?

It'd have to be dynamically allocated, and the "arbitrary" array of two
pointers can be on the stack.

johannes

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