AuxXxilium/linux_dsm_epyc7002
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8ef9ba4d66
linux_dsm_epyc7002/net
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Oliver Herms 8ef9ba4d66 IPv6: Set SIT tunnel hard_header_len to zero 
Due to the legacy usage of hard_header_len for SIT tunnels while
already using infrastructure from net/ipv4/ip_tunnel.c the
calculation of the path MTU in tnl_update_pmtu is incorrect.
This leads to unnecessary creation of MTU exceptions for any
flow going over a SIT tunnel.

As SIT tunnels do not have a header themsevles other than their
transport (L3, L2) headers we're leaving hard_header_len set to zero
as tnl_update_pmtu is already taking care of the transport headers
sizes.

This will also help avoiding unnecessary IPv6 GC runs and spinlock
contention seen when using SIT tunnels and for more than
net.ipv6.route.gc_thresh flows.

Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: Oliver Herms <oliver.peter.herms@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20201103104133.GA1573211@tws
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 15:07:40 -08:00
..
6lowpan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
9p net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2020-10-12 10:05:47 +02:00
802
8021q net: vlan: Fixed signedness in vlan_group_prealloc_vid() 2020-09-28 00:51:39 -07:00
appletalk appletalk: Fix atalk_proc_init() return path 2020-08-03 15:48:32 -07:00
atm net: atm: fix update of position index in lec_seq_next 2020-10-31 12:26:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
bluetooth Bluetooth: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
bpf bpf: fix raw_tp test run in preempt kernel 2020-09-30 08:34:08 -07:00
bpfilter Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" 2020-10-15 12:33:24 -07:00
bridge netfilter: ebtables: Fixes dropping of small packets in bridge nat 2020-10-20 13:54:53 +02:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: isotp: padlen(): make const array static, makes object smaller 2020-11-03 22:30:32 +01:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core Networking fixes for 5.10-rc2. 2020-10-29 12:55:02 -07:00
dcb net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 2020-09-10 15:09:08 -07:00
dccp inet: remove icsk_ack.blocked 2020-09-30 14:21:30 -07:00
decnet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dns_resolver
dsa net: dsa: tag_ksz: KSZ8795 and KSZ9477 also use tail tags 2020-10-19 17:32:50 -07:00
ethernet net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
ethtool ethtool: correct policy for ETHTOOL_MSG_CHANNELS_SET 2020-10-08 16:06:01 -07:00
hsr genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ieee802154 genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ife
ipv4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2020-11-04 08:12:52 -08:00
ipv6 IPv6: Set SIT tunnel hard_header_len to zero 2020-11-09 15:07:40 -08:00
iucv net/iucv: fix indentation in __iucv_message_receive() 2020-10-03 16:51:07 -07:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
l2tp genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mac80211: don't require VHT elements for HE on 2.4 GHz 2020-10-30 10:22:42 +01:00
mac802154 Merge tag 'ieee802154-for-davem-2020-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan 2020-09-08 20:12:58 -07:00
mpls mpls: load mpls_gso after mpls_iptunnel 2020-10-20 21:16:45 -07:00
mptcp mptcp: token: fix unititialized variable 2020-11-03 13:08:30 -08:00
ncsi genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
netfilter netfilter: ipset: Update byte and packet counters regardless of whether they match 2020-10-31 11:11:11 +01:00
netlabel genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
netlink netlink: export policy in extended ACK 2020-10-09 20:22:32 -07:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download() 2020-10-20 17:06:22 -07:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch net: openvswitch: silence suspicious RCU usage warning 2020-11-03 16:57:42 -08:00
packet net/packet: Fix a comment about network_header 2020-09-19 16:40:48 -07:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
qrtr net: qrtr: ns: Fix the incorrect usage of rcu_read_lock() 2020-10-06 06:01:35 -07:00
rds RDMA: Add rdma_connect_locked() 2020-10-28 09:14:49 -03:00
rfkill
rose treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rxrpc rxrpc: Fix loss of final ack on shutdown 2020-10-15 13:28:00 +01:00
sched netem: fix zero division in tabledist 2020-10-29 11:45:47 -07:00
sctp sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian platforms 2020-11-02 15:03:25 -08:00
smc flexible-array member conversion patches for 5.10-rc2 2020-10-31 14:31:28 -07:00
strparser
sunrpc The one new feature this time, from Anna Schumaker, is READ_PLUS, which 2020-10-22 09:44:27 -07:00
switchdev net: switchdev: Fixed kerneldoc warning 2020-09-23 17:46:31 -07:00
tipc Networking fixes for 5.10-rc2. 2020-10-29 12:55:02 -07:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-15 12:43:21 -07:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock vsock: use ns_capable_noaudit() on socket create 2020-10-26 16:22:42 -07:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless cfg80211: regulatory: Fix inconsistent format argument 2020-10-30 10:06:56 +01:00
x25 treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xdp xsk: Fix possible memory leak at socket close 2020-10-29 15:19:56 +01:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2020-11-04 08:12:52 -08:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-05 18:40:01 -07:00
sysctl_net.c