+++ /dev/null
-From: Pablo Neira Ayuso <pablo@netfilter.org>
-Date: Fri, 20 Nov 2020 13:49:13 +0100
-Subject: [PATCH] netfilter: flowtable: add hash offset field to tuple
-
-Add a placeholder field to calculate hash tuple offset. Similar to
-2c407aca6497 ("netfilter: conntrack: avoid gcc-10 zero-length-bounds
-warning").
-
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
-
---- a/include/net/netfilter/nf_flow_table.h
-+++ b/include/net/netfilter/nf_flow_table.h
-@@ -107,6 +107,10 @@ struct flow_offload_tuple {
-
- u8 l3proto;
- u8 l4proto;
-+
-+ /* All members above are keys for lookups, see flow_offload_hash(). */
-+ struct { } __hash;
-+
- u8 dir;
-
- u16 mtu;
---- a/net/netfilter/nf_flow_table_core.c
-+++ b/net/netfilter/nf_flow_table_core.c
-@@ -191,14 +191,14 @@ static u32 flow_offload_hash(const void
- {
- const struct flow_offload_tuple *tuple = data;
-
-- return jhash(tuple, offsetof(struct flow_offload_tuple, dir), seed);
-+ return jhash(tuple, offsetof(struct flow_offload_tuple, __hash), seed);
- }
-
- static u32 flow_offload_hash_obj(const void *data, u32 len, u32 seed)
- {
- const struct flow_offload_tuple_rhash *tuplehash = data;
-
-- return jhash(&tuplehash->tuple, offsetof(struct flow_offload_tuple, dir), seed);
-+ return jhash(&tuplehash->tuple, offsetof(struct flow_offload_tuple, __hash), seed);
- }
-
- static int flow_offload_hash_cmp(struct rhashtable_compare_arg *arg,
-@@ -207,7 +207,7 @@ static int flow_offload_hash_cmp(struct
- const struct flow_offload_tuple *tuple = arg->key;
- const struct flow_offload_tuple_rhash *x = ptr;
-
-- if (memcmp(&x->tuple, tuple, offsetof(struct flow_offload_tuple, dir)))
-+ if (memcmp(&x->tuple, tuple, offsetof(struct flow_offload_tuple, __hash)))
- return 1;
-
- return 0;