f07fe36f22
Move patches to backport-5.10, since the series was accepted upstream Signed-off-by: Felix Fietkau <nbd@nbd.name>
53 lines
1.7 KiB
Diff
53 lines
1.7 KiB
Diff
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;
|