summaryrefslogtreecommitdiff
path: root/net/ipv6/ip6_gre.c
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2022-10-27 15:37:56 -0700
committerJakub Kicinski <kuba@kernel.org>2022-10-27 16:56:36 -0700
commit31f1aa4f740fc591450777f4ff94d6e062b6f632 (patch)
treeb6bfe700d8338b3c88f4d8413b624d0d5fd78e4a /net/ipv6/ip6_gre.c
parent12d6c1d3a2ad0c199ec57c201cdc71e8e157a232 (diff)
parent23758867219c8d84c8363316e6dd2f9fd7ae3049 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c 2871edb32f46 ("can: kvaser_usb: Fix possible completions during init_completion") abb8670938b2 ("can: kvaser_usb_leaf: Ignore stale bus-off after start") 8d21f5927ae6 ("can: kvaser_usb_leaf: Fix improved state not being reported") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/ip6_gre.c')
-rw-r--r--net/ipv6/ip6_gre.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 02b1b54165e8..7673e1dd1147 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1155,14 +1155,16 @@ static void ip6gre_tnl_link_config_route(struct ip6_tnl *t, int set_mtu,
dev->needed_headroom = dst_len;
if (set_mtu) {
- dev->mtu = rt->dst.dev->mtu - t_hlen;
+ int mtu = rt->dst.dev->mtu - t_hlen;
+
if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
- dev->mtu -= 8;
+ mtu -= 8;
if (dev->type == ARPHRD_ETHER)
- dev->mtu -= ETH_HLEN;
+ mtu -= ETH_HLEN;
- if (dev->mtu < IPV6_MIN_MTU)
- dev->mtu = IPV6_MIN_MTU;
+ if (mtu < IPV6_MIN_MTU)
+ mtu = IPV6_MIN_MTU;
+ WRITE_ONCE(dev->mtu, mtu);
}
}
ip6_rt_put(rt);