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SubjectRe: IPv4: ip_options_compile() how can we avoid blowing up on a NULL skb???
From: "Jesper Juhl" <>
Date: Thu, 16 Nov 2006 23:34:14 +0100

> So if 'skb' is NULL, the only route I see that doesn't cause a NULL
> pointer deref is if (opt != NULL) and at the same time
> (opt->is_data != NULL) . Is that guaranteed in any way?

Yes, it is guarenteed, all callers make sure these invariants
hold true.

I'm very happy to accept a patch which assert's this using BUG()
checks :-)
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