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authorDavid S. Miller <davem@davemloft.net>2020-05-15 13:48:59 -0700
committerDavid S. Miller <davem@davemloft.net>2020-05-15 13:48:59 -0700
commitda07f52d3caf6c24c6dbffb5500f379d819e04bd (patch)
tree836e51994554f1aeddeebb6cb6ee568944a467e7 /net/ipv6/route.c
parent93d43e58683efd958a0421b932a273df74e0e008 (diff)
parentf85c1598ddfe83f61d0656bd1d2025fa3b148b99 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Move the bpf verifier trace check into the new switch statement in HEAD. Resolve the overlapping changes in hinic, where bug fixes overlap the addition of VF support. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fcf0d5c87d09..a8b4add0b545 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2722,8 +2722,10 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
const struct in6_addr *daddr, *saddr;
struct rt6_info *rt6 = (struct rt6_info *)dst;
- if (dst_metric_locked(dst, RTAX_MTU))
- return;
+ /* Note: do *NOT* check dst_metric_locked(dst, RTAX_MTU)
+ * IPv6 pmtu discovery isn't optional, so 'mtu lock' cannot disable it.
+ * [see also comment in rt6_mtu_change_route()]
+ */
if (iph) {
daddr = &iph->daddr;