[PATCH 5.15 102/132] netfilter: flowtable: pass flowtable to nf_flow_table_iterate()

Greg Kroah-Hartman
2022-05-23T17:39:03Z

From: Pablo Neira Ayuso <pablo@netfilter.org>

[ Upstream commit 217cff36e885627c41a14e803fc44f9cbc945767 ]

The flowtable object is already passed as argument to
nf_flow_table_iterate(), do use not data pointer to pass flowtable.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nf_flow_table_core.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index 58f3f77b3eb2..de783c9094d7 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -382,7 +382,8 @@ EXPORT_SYMBOL_GPL(flow_offload_lookup);

static int
nf_flow_table_iterate(struct nf_flowtable *flow_table,
- void (*iter)(struct flow_offload *flow, void *data),
+ void (*iter)(struct nf_flowtable *flowtable,
+ struct flow_offload *flow, void *data),
void *data)
{
struct flow_offload_tuple_rhash *tuplehash;
@@ -406,7 +407,7 @@ nf_flow_table_iterate(struct nf_flowtable *flow_table,

flow = container_of(tuplehash, struct flow_offload, tuplehash[0]);

- iter(flow, data);
+ iter(flow_table, flow, data);
}
rhashtable_walk_stop(&hti);
rhashtable_walk_exit(&hti);
@@ -434,10 +435,9 @@ static bool nf_flow_has_stale_dst(struct flow_offload *flow)
flow_offload_stale_dst(&flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple);
}

-static void nf_flow_offload_gc_step(struct flow_offload *flow, void *data)
+static void nf_flow_offload_gc_step(struct nf_flowtable *flow_table,
+ struct flow_offload *flow, void *data)
{
- struct nf_flowtable *flow_table = data;
-
if (nf_flow_has_expired(flow) ||
nf_ct_is_dying(flow->ct) ||
nf_flow_has_stale_dst(flow))
@@ -462,7 +462,7 @@ static void nf_flow_offload_work_gc(struct work_struct *work)
struct nf_flowtable *flow_table;

flow_table = container_of(work, struct nf_flowtable, gc_work.work);
- nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step, flow_table);
+ nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step, NULL);
queue_delayed_work(system_power_efficient_wq, &flow_table->gc_work, HZ);
}

@@ -578,7 +578,8 @@ int nf_flow_table_init(struct nf_flowtable *flowtable)
}
EXPORT_SYMBOL_GPL(nf_flow_table_init);

-static void nf_flow_table_do_cleanup(struct flow_offload *flow, void *data)
+static void nf_flow_table_do_cleanup(struct nf_flowtable *flow_table,
+ struct flow_offload *flow, void *data)
{
struct net_device *dev = data;

@@ -620,11 +621,10 @@ 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_iterate(flow_table, nf_flow_offload_gc_step, NULL);
nf_flow_table_offload_flush(flow_table);
if (nf_flowtable_hw_offload(flow_table))
- nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step,
- flow_table);
+ nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step, NULL);
rhashtable_destroy(&flow_table->rhashtable);
}
EXPORT_SYMBOL_GPL(nf_flow_table_free);
--
2.35.1