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From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 18 Jan 2021 22:27:45 +0100
Subject: [PATCH] netfilter: nft_flow_offload: add dsa support

Replace the master ethernet device by the dsa slave port.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -86,6 +86,7 @@ static void nft_dev_path_info(const stru
 		path = &stack->path[i];
 		switch (path->type) {
 		case DEV_PATH_ETHERNET:
+		case DEV_PATH_DSA:
 		case DEV_PATH_VLAN:
 			info->dev = path->dev;
 			if (is_zero_ether_addr(info->h_source))
@@ -93,6 +94,10 @@ static void nft_dev_path_info(const stru
 
 			if (path->type == DEV_PATH_ETHERNET)
 				break;
+			if (path->type == DEV_PATH_DSA) {
+				i = stack->num_paths;
+				break;
+			}
 
 			/* DEV_PATH_VLAN */
 			if (info->num_vlans >= NF_FLOW_TABLE_VLAN_MAX) {