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netfilter: flowtable: Fix missing flush hardware on table free 

If entries exist when freeing a hardware offload enabled table,
we queue work for hardware while running the gc iteration.

Execute it (flush) after queueing.

Fixes: c29f74e0df ("netfilter: nf_flow_table: hardware offload support")
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Paul Blakey 2020-01-30 18:04:36 +02:00 committed by Pablo Neira Ayuso
parent 91bfaa15a3
commit 0f34f30a1b
1 changed files with 1 additions and 0 deletions
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net/netfilter/nf_flow_table_core.c
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@ -553,6 +553,7 @@ void nf_flow_table_free(struct nf_flowtable *flow_table)
cancel_delayed_work_sync(&flow_table->gc_work);
nf_flow_table_iterate(flow_table, nf_flow_table_do_cleanup, NULL);
nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step, flow_table);
nf_flow_table_offload_flush(flow_table);
rhashtable_destroy(&flow_table->rhashtable);
}
EXPORT_SYMBOL_GPL(nf_flow_table_free);