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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-06 10:46:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-08 15:27:40 +0300 |
| commit | b36c97615b985fe910fc6ae20afd2fad3b82ce8d (patch) | |
| tree | a1c9dbb23c2b701fece6d389536288638e5cf4f6 /net/ipv6 | |
| parent | f4c360885236357b1aefa6c2be1aeef7c8daa6ab (diff) | |
| download | linux-b36c97615b985fe910fc6ae20afd2fad3b82ce8d.tar.xz | |
Revert "ip6_vti: adjust vti mtu according to mtu of lower device"
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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_vti.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index fa3ae1cb50d3..8c184f84f353 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -626,7 +626,6 @@ static void vti6_link_config(struct ip6_tnl *t) { 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_tnl *t) 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); } /** |