netfilter: conntrack: remove __nf_ct_unconfirmed_destroy
Its not needed anymore: A. If entry is totally new, then the rcu-protected resource must already have been removed from global visibility before call to nf_ct_iterate_destroy. B. If entry was allocated before, but is not yet in the hash table (uncofirmed case), genid gets incremented and synchronize_rcu() call makes sure access has completed. C. Next attempt to peek at extension area will fail for unconfirmed conntracks, because ext->genid != genid. D. Conntracks in the hash are iterated as before. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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