kernel: update flow offload patches to upstream version

Move patches to backport-5.10, since the series was accepted upstream

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 82 insertions, 0 deletions

diff --git a/target/linux/generic/backport-5.10/610-v5.13-06-netfilter-flowtable-move-FLOW_OFFLOAD_DIR_MAX-away-f.patch b/target/linux/generic/backport-5.10/610-v5.13-06-netfilter-flowtable-move-FLOW_OFFLOAD_DIR_MAX-away-f.patch
new file mode 100644
index 0000000000..473647dcbb
--- /dev/null
+++ b/target/linux/generic/backport-5.10/610-v5.13-06-netfilter-flowtable-move-FLOW_OFFLOAD_DIR_MAX-away-f.patch
@@ -0,0 +1,82 @@
+From: Pablo Neira Ayuso <pablo@netfilter.org>
+Date: Tue, 23 Mar 2021 00:56:24 +0100
+Subject: [PATCH] netfilter: flowtable: move FLOW_OFFLOAD_DIR_MAX away
+ from enumeration
+
+This allows to remove the default case which should not ever happen and
+that was added to avoid gcc warnings on unhandled FLOW_OFFLOAD_DIR_MAX
+enumeration case.
+
+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
+@@ -86,8 +86,8 @@ static inline bool nf_flowtable_hw_offlo
+ enum flow_offload_tuple_dir {
+ 	FLOW_OFFLOAD_DIR_ORIGINAL = IP_CT_DIR_ORIGINAL,
+ 	FLOW_OFFLOAD_DIR_REPLY = IP_CT_DIR_REPLY,
+-	FLOW_OFFLOAD_DIR_MAX = IP_CT_DIR_MAX
+ };
++#define FLOW_OFFLOAD_DIR_MAX	IP_CT_DIR_MAX
+ 
+ struct flow_offload_tuple {
+ 	union {
+--- a/net/netfilter/nf_flow_table_core.c
++++ b/net/netfilter/nf_flow_table_core.c
+@@ -454,8 +454,6 @@ int nf_flow_snat_port(const struct flow_
+ 		new_port = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.src_port;
+ 		hdr->dest = new_port;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 
+ 	return nf_flow_nat_port(skb, thoff, protocol, port, new_port);
+@@ -482,8 +480,6 @@ int nf_flow_dnat_port(const struct flow_
+ 		new_port = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.dst_port;
+ 		hdr->source = new_port;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 
+ 	return nf_flow_nat_port(skb, thoff, protocol, port, new_port);
+--- a/net/netfilter/nf_flow_table_ip.c
++++ b/net/netfilter/nf_flow_table_ip.c
+@@ -96,8 +96,6 @@ static int nf_flow_snat_ip(const struct
+ 		new_addr = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.src_v4.s_addr;
+ 		iph->daddr = new_addr;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 	csum_replace4(&iph->check, addr, new_addr);
+ 
+@@ -121,8 +119,6 @@ static int nf_flow_dnat_ip(const struct
+ 		new_addr = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.dst_v4.s_addr;
+ 		iph->saddr = new_addr;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 	csum_replace4(&iph->check, addr, new_addr);
+ 
+@@ -371,8 +367,6 @@ static int nf_flow_snat_ipv6(const struc
+ 		new_addr = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.src_v6;
+ 		ip6h->daddr = new_addr;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 
+ 	return nf_flow_nat_ipv6_l4proto(skb, ip6h, thoff, &addr, &new_addr);
+@@ -396,8 +390,6 @@ static int nf_flow_dnat_ipv6(const struc
+ 		new_addr = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.dst_v6;
+ 		ip6h->saddr = new_addr;
+ 		break;
+-	default:
+-		return -1;
+ 	}
+ 
+ 	return nf_flow_nat_ipv6_l4proto(skb, ip6h, thoff, &addr, &new_addr);