netfilter: nf_tables: add helper functions for expression handling
authorPatrick McHardy <kaber@trash.net>
Sat, 11 Apr 2015 09:46:38 +0000 (10:46 +0100)
committerPablo Neira Ayuso <pablo@netfilter.org>
Mon, 13 Apr 2015 18:12:31 +0000 (20:12 +0200)
Add helper functions for initializing, cloning, dumping and destroying
a single expression that is not part of a rule.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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