4.15-stable review patch. If anyone has any objections, please let me know.
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From: Greg Kroah-Hartman gregkh@linuxfoundation.org
This reverts commit 813b2dad2cb59d2759f1538e65d56dcccdb18a94 which is commit 53c81e95df1793933f87748d36070a721f6cb287 upstream.
Ben writes that there are a number of follow-on patches needed to fix this up, but they get complex to backport, and some custom fixes are needed, so let's just revert this and wait for a "real" set of patches to resolve this to be submitted if it is really needed.
Reported-by: Ben Hutchings ben.hutchings@codethink.co.uk Cc: Petr Vorel pvorel@suse.cz Cc: Alexey Kodanev alexey.kodanev@oracle.com Cc: David S. Miller davem@davemloft.net Cc: Stefano Brivio sbrivio@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/ip6_vti.c | 20 -------------------- 1 file changed, 20 deletions(-)
--- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -626,7 +626,6 @@ static void vti6_link_config(struct ip6_ { struct net_device *dev = t->dev; struct __ip6_tnl_parm *p = &t->parms; - struct net_device *tdev = NULL;
memcpy(dev->dev_addr, &p->laddr, sizeof(struct in6_addr)); memcpy(dev->broadcast, &p->raddr, sizeof(struct in6_addr)); @@ -639,25 +638,6 @@ static void vti6_link_config(struct ip6_ dev->flags |= IFF_POINTOPOINT; else dev->flags &= ~IFF_POINTOPOINT; - - if (p->flags & IP6_TNL_F_CAP_XMIT) { - int strict = (ipv6_addr_type(&p->raddr) & - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL)); - struct rt6_info *rt = rt6_lookup(t->net, - &p->raddr, &p->laddr, - p->link, strict); - - if (rt) - tdev = rt->dst.dev; - ip6_rt_put(rt); - } - - if (!tdev && p->link) - tdev = __dev_get_by_index(t->net, p->link); - - if (tdev) - dev->mtu = max_t(int, tdev->mtu - dev->hard_header_len, - IPV6_MIN_MTU); }
/**