diff --git a/net/core/filter.c b/net/core/filter.c
index aff14a883ffd..65b6ecb07a59 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2861,8 +2861,6 @@ static int bpf_skb_proto_4_to_6(struct sk_buff *skb)
 			shinfo->gso_type |=  SKB_GSO_TCPV6;
 		}
 
-		/* Due to IPv6 header, MSS needs to be downgraded. */
-		skb_decrease_gso_size(shinfo, len_diff);
 		/* Header must be checked, and gso_segs recomputed. */
 		shinfo->gso_type |= SKB_GSO_DODGY;
 		shinfo->gso_segs = 0;
@@ -2902,8 +2900,6 @@ static int bpf_skb_proto_6_to_4(struct sk_buff *skb)
 			shinfo->gso_type |=  SKB_GSO_TCPV4;
 		}
 
-		/* Due to IPv4 header, MSS can be upgraded. */
-		skb_increase_gso_size(shinfo, len_diff);
 		/* Header must be checked, and gso_segs recomputed. */
 		shinfo->gso_type |= SKB_GSO_DODGY;
 		shinfo->gso_segs = 0;