Re: udp.c

[Rommer <rommer@active.by>]

Hello,

So, why BUG(), not just void function?

Bernd Petrovitsch wrote:
> On Mon, 2005-06-13 at 14:24 +0200, Måns Rullgård wrote:
>
> > Bernd Petrovitsch <bernd@firmix.at> writes:
> >
> >
> > > On Mon, 2005-06-13 at 14:57 +0300, Rommer wrote:
> > >
> > > > Where used strange function udp_v4_hash?
> > > > linux-2.6.11.11, net/ipv4/udp.c:204
> > > >
> > > > static void udp_v4_hash(struct sock *sk)
> > >
> > > Since it is "static" the user must be in the same source file (or -
> > > theoretically - any included header).
> >
> > It's not that simple.  It is assigned to the 'hash' field of a struct
>
>
> If you interpret "called" word-by-word yes. I assumed "used".
>
>
> > proto, which is exported.  It could be used from anywhere, but
>
>
> The the OP has to grep for dereferences for this hash variable and check
> if it is (or may be) from the given struct.
> Well, that's the virtue of object-orientation: Follow the objects, not
> the functions/methods.
>
>
> > hopefully isn't.  Something else is supposed to ensure that it is
> > never called when using the UDP protocol.
>
>
> Apparently.
>
> 	Bernd

--
Best regards, Roman
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