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path: root/net/ipv6/ip6_vti.c
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Diffstat (limited to 'net/ipv6/ip6_vti.c')
-rw-r--r--net/ipv6/ip6_vti.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 2493a40bc4b1..0e0ab90a4334 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -852,7 +852,7 @@ static void vti6_dev_setup(struct net_device *dev)
dev->hard_header_len = LL_MAX_HEADER + sizeof(struct ipv6hdr);
dev->mtu = ETH_DATA_LEN;
dev->min_mtu = IPV6_MIN_MTU;
- dev->max_mtu = IP_MAX_MTU;
+ dev->max_mtu = IP_MAX_MTU - sizeof(struct ipv6hdr);
dev->flags |= IFF_NOARP;
dev->addr_len = sizeof(struct in6_addr);
netif_keep_dst(dev);