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Vadim Fedorenko 5d3007b6cc net: ip_tunnel: fix mtu calculation 
commit 28e104d002 upstream.

dev->hard_header_len for tunnel interface is set only when header_ops
are set too and already contains full overhead of any tunnel encapsulation.
That's why there is not need to use this overhead twice in mtu calc.

Fixes: fdafed4599 ("ip_gre: set dev->hard_header_len and dev->needed_headroom properly")
Reported-by: Slava Bacherikov <mail@slava.cc>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Link: https://lore.kernel.org/r/1611959267-20536-1-git-send-email-vfedorenko@novek.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-10 09:25:32 +01:00
..
bpfilter
…
netfilter
netfilter: rpfilter: mask ecn bits before fib lookup
2021-01-27 11:47:52 +01:00
af_inet.c
…
ah4.c
…
arp.c
Exempt multicast addresses from five-second neighbor lifetime
2020-11-24 13:28:56 +01:00
cipso_ipv4.c
…
datagram.c
…
devinet.c
…
esp4_offload.c
…
esp4.c
esp: avoid unneeded kmap_atomic call
2021-01-23 15:57:58 +01:00
fib_frontend.c
ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst()
2021-01-12 20:16:14 +01:00
fib_lookup.h
…
fib_notifier.c
…
fib_rules.c
…
fib_semantics.c
…
fib_trie.c
ipv4: Silence suspicious RCU usage warning
2020-09-12 14:18:54 +02:00
fou.c
…
gre_demux.c
erspan: fix version 1 check in gre_parse_header()
2021-01-12 20:16:15 +01:00
gre_offload.c
net: gre: recompute gre csum for sctp over gre tunnels
2020-08-11 15:33:40 +02:00
icmp.c
icmp: randomize the global rate limiter
2020-10-29 09:57:27 +01:00
igmp.c
…
inet_connection_sock.c
tcp: fix TCP_USER_TIMEOUT with zero window
2021-01-27 11:47:55 +01:00
inet_diag.c
inet_diag: Fix error path to cancel the meseage in inet_req_diag_fill()
2020-11-24 13:28:56 +01:00
inet_fragment.c
…
inet_hashtables.c
net: initialize fastreuse on inet_inherit_port
2020-08-19 08:16:23 +02:00
inet_timewait_sock.c
…
inetpeer.c
…
ip_forward.c
…
ip_fragment.c
…
ip_gre.c
ip_gre: set dev->hard_header_len and dev->needed_headroom properly
2020-10-29 09:58:04 +01:00
ip_input.c
…
ip_options.c
…
ip_output.c
net: ip: always refragment ip defragmented packets
2021-01-17 14:05:32 +01:00
ip_sockglue.c
…
ip_tunnel_core.c
…
ip_tunnel.c
net: ip_tunnel: fix mtu calculation
2021-02-10 09:25:32 +01:00
ip_vti.c
…
ipcomp.c
…
ipconfig.c
…
ipip.c
…
ipmr_base.c
…
ipmr.c
…
Kconfig
…
Makefile
…
metrics.c
…
netfilter.c
netfilter: use actual socket sk rather than skb sk when routing harder
2020-11-18 19:20:17 +01:00
netlink.c
…
nexthop.c
nexthop: Unlink nexthop group entry in error path
2021-01-17 14:05:32 +01:00
ping.c
ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg
2020-07-22 09:32:47 +02:00
proc.c
…
protocol.c
…
raw_diag.c
…
raw.c
…
route.c
ipv4: Fix tos mask in inet_rtm_getroute()
2020-12-08 10:40:25 +01:00
syncookies.c
net: Update window_clamp if SOCK_RCVBUF is set
2020-11-18 19:20:32 +01:00
sysctl_net_ipv4.c
tcp: correct read of TFO keys on big endian systems
2020-08-19 08:16:23 +02:00
tcp_bbr.c
tcp: only postpone PROBE_RTT if RTT is < current min_rtt estimate
2020-11-24 13:28:59 +01:00
tcp_bic.c
…
tcp_bpf.c
bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect
2020-11-24 13:29:08 +01:00
tcp_cdg.c
…
tcp_cong.c
tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control
2020-12-08 10:40:24 +01:00
tcp_cubic.c
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
2020-06-30 15:36:47 -04:00
tcp_dctcp.c
…
tcp_dctcp.h
…
tcp_diag.c
…
tcp_fastopen.c
tcp: correct read of TFO keys on big endian systems
2020-08-19 08:16:23 +02:00
tcp_highspeed.c
…
tcp_htcp.c
…
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
tcp: make TCP_USER_TIMEOUT accurate for zero window probes
2021-02-07 15:35:47 +01:00
tcp_ipv4.c
tcp: do not mess with cloned skbs in tcp_add_backlog()
2021-01-27 11:47:55 +01:00
tcp_lp.c
…
tcp_metrics.c
…
tcp_minisocks.c
…
tcp_nv.c
…
tcp_offload.c
…
tcp_output.c
tcp: make TCP_USER_TIMEOUT accurate for zero window probes
2021-02-07 15:35:47 +01:00
tcp_rate.c
…
tcp_recovery.c
tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
2021-02-03 23:26:02 +01:00
tcp_scalable.c
…
tcp_timer.c
tcp: make TCP_USER_TIMEOUT accurate for zero window probes
2021-02-07 15:35:47 +01:00
tcp_ulp.c
…
tcp_vegas.c
…
tcp_vegas.h
…
tcp_veno.c
…
tcp_westwood.c
…
tcp_yeah.c
…
tcp.c
tcp: fix TCP_USER_TIMEOUT with zero window
2021-01-27 11:47:55 +01:00
tunnel4.c
…
udp_diag.c
…
udp_impl.h
…
udp_offload.c
net: udp: fix UDP header access on Fast/frag0 UDP GRO
2020-11-18 19:20:32 +01:00
udp_tunnel.c
…
udp.c
udp: mask TOS bits in udp_v4_early_demux()
2021-01-27 11:47:53 +01:00
udplite.c
…
xfrm4_input.c
…
xfrm4_output.c
…
xfrm4_policy.c
…
xfrm4_protocol.c
…
xfrm4_state.c
…
xfrm4_tunnel.c
…