[PATCH bpf-next 2/2] selftests/bpf: Remove unnecessary codes for updating h_proto of ethhdr

[Ziyang Xuan <william.xuanziyang@xxxxxxxxxx>]

Since updating h_proto of ethhdr in kernel, remove the codes
in user bpf program.

Signed-off-by: Ziyang Xuan <william.xuanziyang@xxxxxxxxxx>
---
 .../selftests/bpf/progs/test_tc_tunnel.c       | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
index e6e678aa9874..a33be22a2dc4 100644
--- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
+++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
@@ -236,17 +236,6 @@ static __always_inline int __encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
 				BPF_F_INVALIDATE_HASH) < 0)
 		return TC_ACT_SHOT;
 
-	/* if changing outer proto type, update eth->h_proto */
-	if (encap_proto == IPPROTO_IPV6) {
-		struct ethhdr eth;
-
-		if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)) < 0)
-			return TC_ACT_SHOT;
-		eth.h_proto = bpf_htons(ETH_P_IP);
-		if (bpf_skb_store_bytes(skb, 0, &eth, sizeof(eth), 0) < 0)
-			return TC_ACT_SHOT;
-	}
-
 	return TC_ACT_OK;
 }
 
@@ -412,13 +401,6 @@ static int encap_ipv6_ipip6(struct __sk_buff *skb)
 				BPF_F_INVALIDATE_HASH) < 0)
 		return TC_ACT_SHOT;
 
-	/* update eth->h_proto */
-	if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)) < 0)
-		return TC_ACT_SHOT;
-	eth.h_proto = bpf_htons(ETH_P_IPV6);
-	if (bpf_skb_store_bytes(skb, 0, &eth, sizeof(eth), 0) < 0)
-		return TC_ACT_SHOT;
-
 	return TC_ACT_OK;
 }
 
-- 
2.25.1