Linux-kernel mailing list archive 1999-37,: Re: linux-ipsec: Re: valid module function pointer?

# Re: linux-ipsec: Re: valid module function pointer?

Richard Guy Briggs (rgb@conscoop.ottawa.on.ca)
Fri, 17 Sep 1999 19:26:07 -0400 (EDT)

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> > Can anyone suggest a way to test a module function pointer for
> > validity? The problem is that we currently save pointers to kernel
> > space funciton pointers which might go away if a pcmcia card is
> > removed. Is there a way to test if the function pointer belongs to a
> > module which is still loaded?
>
> No. You need to ensure it isnt unloaded on you. Look at the network device
> notifier

Ok, where do I start looking for this? I've never heard of it. I had
in mind something like incrementing its module reference count...

slainte mhath, RGB
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