[PATCH 5.15.y 1/3] ip_tunnels: Add new flow flags field to ip_tunnel_key

[Sasha Levin <sashal@kernel.org>]

From: Paul Chaignon <paul@isovalent.com>

[ Upstream commit 451ef36bd229f8aa329cb2258a859b4c636d08ef ]

This commit extends the ip_tunnel_key struct with a new field for the
flow flags, to pass them to the route lookups. This new field will be
populated and used in subsequent commits.

Signed-off-by: Paul Chaignon <paul@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/f8bfd4983bd06685a59b1e3ba76ca27496f51ef3.1658759380.git.paul@isovalent.com
Stable-dep-of: 6776efe4a52f ("ipip: fix skb leak in collect_md mode when metadata_dst allocation fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/ip_tunnels.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 0d71e7c4c6916..f858df8325d15 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -54,6 +54,7 @@ struct ip_tunnel_key {
 	__be32			label;		/* Flow Label for IPv6 */
 	__be16			tp_src;
 	__be16			tp_dst;
+	__u8			flow_flags;
 };
 
 /* Flags for ip_tunnel_info mode. */
-- 
2.53.0