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Ido Schimmel d32a15cbc0 ipv6_tunnel: Rate limit warning messages 
commit 6cee105e7f2ced596373951d9ea08dacc3883c68 upstream.

The warning messages can be invoked from the data path for every packet
transmitted through an ip6gre netdev, leading to high CPU utilization.

Fix that by rate limiting the messages.

Fixes: 09c6bbf090ec ("[IPV6]: Do mandatory IPv6 tunnel endpoint checks in realtime")
Reported-by: Maksym Yaremchuk <maksymy@nvidia.com>
Tested-by: Maksym Yaremchuk <maksymy@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:15:27 +01:00
..
ila
ila_xlat: add missing hash secret initialization
2017-06-24 07:11:12 +02:00
netfilter
netfilter: ip6_tables: zero-initialize fragment offset
2021-10-17 10:05:40 +02:00
addrconf_core.c
net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
2020-05-20 08:15:30 +02:00
addrconf.c
ipv6: create multicast route with RTPROT_KERNEL
2021-01-30 13:27:16 +01:00
addrlabel.c
…
af_inet6.c
net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
2020-05-20 08:15:30 +02:00
ah6.c
ah6: fix error return code in ah6_input()
2020-11-24 13:02:52 +01:00
anycast.c
ipv6: fix memory leaks on IPV6_ADDRFORM path
2020-08-21 11:01:55 +02:00
calipso.c
cipso,calipso: resolve a number of problems with the DOI refcounts
2022-01-27 08:47:42 +01:00
datagram.c
net: ipv6: keep sk status consistent after datagram connect failure
2021-01-09 13:35:49 +01:00
esp6.c
esp6: fix memleak on error path in esp6_input
2020-06-11 09:22:18 +02:00
exthdrs_core.c
…
exthdrs_offload.c
…
exthdrs.c
ipv6: make ipv6_renew_options() interrupt/kernel safe
2018-08-24 13:12:36 +02:00
fib6_rules.c
ipv6: Do not leak throw route references
2017-07-05 14:40:16 +02:00
fou6.c
…
icmp.c
net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
2021-03-03 17:44:46 +01:00
inet6_connection_sock.c
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:15:30 +02:00
inet6_hashtables.c
tcp/dccp: fix possible race __inet_lookup_established()
2020-01-04 13:41:12 +01:00
ip6_checksum.c
net: udp: fix handling of CHECKSUM_COMPLETE packets
2018-11-10 07:42:58 -08:00
ip6_fib.c
ipv6: Fix route replacement with dev-only route
2020-03-11 07:53:05 +01:00
ip6_flowlabel.c
ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
2019-06-22 08:17:21 +02:00
ip6_gre.c
ipv6: remove extra dev_hold() for fallback tunnels
2021-05-22 10:40:34 +02:00
ip6_icmp.c
net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
2021-03-03 17:44:46 +01:00
ip6_input.c
ipv6: weaken the v4mapped source check
2021-04-07 12:05:38 +02:00
ip6_offload.c
gso_segment: Reset skb->mac_len after modifying network header
2018-09-29 03:07:32 -07:00
ip6_offload.h
…
ip6_output.c
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:15:30 +02:00
ip6_tunnel.c
ipv6_tunnel: Rate limit warning messages
2022-02-08 18:15:27 +01:00
ip6_udp_tunnel.c
ipv6: explicitly initialize udp6_addr in udp_sock_create6()
2019-01-09 16:16:40 +01:00
ip6_vti.c
ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate
2022-01-11 13:38:13 +01:00
ip6mr.c
ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt
2019-08-04 09:33:43 +02:00
ipcomp6.c
…
ipv6_sockglue.c
ipv6: fix memory leaks on IPV6_ADDRFORM path
2020-08-21 11:01:55 +02:00
Kconfig
…
Makefile
…
mcast_snoop.c
…
mcast.c
mld: fix panic in mld_newpack()
2021-06-03 08:23:32 +02:00
mip6.c
…
ndisc.c
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
2018-11-10 07:42:57 -08:00
netfilter.c
…
output_core.c
ipv6: use prandom_u32() for ID generation
2021-07-20 16:21:07 +02:00
ping.c
ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()'
2019-09-21 07:14:01 +02:00
proc.c
inet: frags: break the 2GB limit for frags storage
2018-10-18 09:13:24 +02:00
protocol.c
…
raw.c
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:15:30 +02:00
reassembly.c
inet: frags: call inet_frags_fini() after unregister_pernet_subsys()
2020-01-29 10:24:25 +01:00
route.c
net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh
2021-04-16 11:59:06 +02:00
sit.c
ipv6: remove extra dev_hold() for fallback tunnels
2021-05-22 10:40:34 +02:00
syncookies.c
net: Update window_clamp if SOCK_RCVBUF is set
2020-11-18 18:26:29 +01:00
sysctl_net_ipv6.c
…
tcp_ipv6.c
ipv6: tcp: drop silly ICMPv6 packet too big messages
2021-07-28 09:14:26 +02:00
tcpv6_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 12:55:55 +01:00
tunnel6.c
…
udp_impl.h
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
udp_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 12:55:55 +01:00
udp.c
net: udp: annotate data race around udp_sk(sk)->corkflag
2021-10-06 10:23:42 +02:00
udplite.c
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
xfrm6_input.c
…
xfrm6_mode_beet.c
…
xfrm6_mode_ro.c
ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt()
2017-06-14 15:05:51 +02:00
xfrm6_mode_transport.c
ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt()
2017-06-14 15:05:51 +02:00
xfrm6_mode_tunnel.c
…
xfrm6_output.c
net: ipv6: fix return value of ip6_skb_dst_mtu
2021-07-28 09:14:25 +02:00
xfrm6_policy.c
xfrm6: avoid potential infinite loop in _decode_session6()
2018-06-26 08:08:05 +08:00
xfrm6_protocol.c
…
xfrm6_state.c
…
xfrm6_tunnel.c
xfrm6_tunnel: Fix potential panic when unloading xfrm6_tunnel module
2019-05-25 18:26:54 +02:00