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netfilter: nf_tables: return immediately on empty commit
authorFlorian Westphal <fw@strlen.de>
Thu, 7 Mar 2019 22:20:11 +0000 (23:20 +0100)
committerPablo Neira Ayuso <pablo@netfilter.org>
Mon, 11 Mar 2019 19:01:20 +0000 (20:01 +0100)
commitb8b27498659c65034032af79842913844a6cc79a
tree16094d0c30d365c1ef5a93e6ecc4139b9510b319
parent3f3a390dbd59d236f62cff8e8b20355ef7069e3d
netfilter: nf_tables: return immediately on empty commit

When running 'nft flush ruleset' while no rules exist, we will increment
the generation counter and announce a new genid to userspace, yet
nothing had changed in the first place.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_tables_api.c