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Yuchung Cheng 9c30ae8398 tcp: fix TCP socket rehash stats mis-accounting 
The previous commit 32efcc06d2 ("tcp: export count for rehash attempts")
would mis-account rehashing SNMP and socket stats:

  a. During handshake of an active open, only counts the first
     SYN timeout

  b. After handshake of passive and active open, stop updating
     after (roughly) TCP_RETRIES1 recurring RTOs

  c. After the socket aborts, over count timeout_rehash by 1

This patch fixes this by checking the rehash result from sk_rethink_txhash.

Fixes: 32efcc06d2 ("tcp: export count for rehash attempts")
Signed-off-by: Yuchung Cheng <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: Neal Cardwell <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
2021-01-19 19:47:20 -08:00
..
9p
9p: apply review requests for fid refcounting
2020-11-19 17:21:34 +01:00
bluetooth
Bluetooth: Change MGMT security info CMD to be more generic
2020-12-07 17:01:42 +02:00
caif
net: caif: Remove unused caif SPI driver
2020-09-29 14:02:53 -07:00
iucv
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netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2020-12-14 15:43:21 -08:00
netns
sctp: add encap_port for netns sock asoc and transport
2020-10-30 15:24:06 -07:00
nfc
net/nfc/nci: Support NCI 2.x initial sequence
2020-12-04 17:47:35 -08:00
phonet
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sctp
sctp: bring inet(6)_skb_parm back to sctp_input_cb
2020-11-05 14:27:30 -08:00
tc_act
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-15 12:43:21 -07:00
6lowpan.h
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act_api.h
net/sched: sch_frag: add generic packet fragment support.
2020-11-27 14:36:02 -08:00
addrconf.h
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af_ieee802154.h
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af_rxrpc.h
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af_unix.h
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af_vsock.h
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ah.h
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arp.h
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atmclip.h
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ax25.h
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ax88796.h
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bareudp.h
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bond_3ad.h
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bond_alb.h
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bond_options.h
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bonding.h
bonding: fix feature flag setting at init time
2020-12-08 11:26:08 -08:00
bpf_sk_storage.h
bpf: Allow using bpf_sk_storage in FENTRY/FEXIT/RAW_TP
2020-11-12 18:39:28 -08:00
busy_poll.h
net, xdp, xsk: fix __sk_mark_napi_id_once napi_id error
2020-12-01 15:51:19 +01:00
calipso.h
…
cfg80211-wext.h
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cfg80211.h
cfg80211: fix a kerneldoc markup
2021-01-14 22:21:53 +01:00
cfg802154.h
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checksum.h
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cipso_ipv4.h
…
cls_cgroup.h
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codel_impl.h
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codel_qdisc.h
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codel.h
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compat.h
compat: always include linux/compat.h from net/compat.h
2020-11-23 13:31:54 -08:00
datalink.h
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dcbevent.h
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dcbnl.h
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devlink.h
devlink: Add blackhole_nexthop trap
2020-11-24 12:14:56 -08:00
dn_dev.h
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dn_fib.h
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dn_neigh.h
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dn_nsp.h
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dn_route.h
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dn.h
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dsa.h
net: dsa: Give drivers the chance to veto certain upper devices
2020-11-05 14:04:49 -08:00
dsfield.h
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dst_cache.h
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dst_metadata.h
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dst_ops.h
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dst.h
mpls: drop skb's dst in mpls_forward()
2020-11-03 12:55:53 -08:00
erspan.h
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esp.h
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espintcp.h
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ethoc.h
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failover.h
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fib_notifier.h
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fib_rules.h
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firewire.h
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flow_dissector.h
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flow_offload.h
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flow.h
lsm,selinux: pass flowi_common instead of flowi to the LSM hooks
2020-11-23 18:36:21 -05:00
fou.h
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fq_impl.h
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fq.h
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garp.h
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gen_stats.h
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genetlink.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
geneve.h
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gre.h
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gro_cells.h
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gtp.h
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gue.h
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hwbm.h
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icmp.h
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ieee80211_radiotap.h
mac80211: add radiotap flag to assure frames are not reordered
2020-11-06 11:01:01 +01:00
ieee802154_netdev.h
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if_inet6.h
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ife.h
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ila.h
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inet6_connection_sock.h
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inet6_hashtables.h
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inet_common.h
…
inet_connection_sock.h
tcp: fix TCP_USER_TIMEOUT with zero window
2021-01-18 19:59:17 -08:00
inet_ecn.h
inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers
2020-12-14 18:38:58 -08:00
inet_frag.h
inet: frags: batch fqdir destroy works
2020-12-12 15:08:54 -08:00
inet_hashtables.h
tcp: fix race condition when creating child sockets from syncookies
2020-11-23 16:32:33 -08:00
inet_sock.h
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inet_timewait_sock.h
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inetpeer.h
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ip6_checksum.h
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ip6_fib.h
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ip6_route.h
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ip6_tunnel.h
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ip_fib.h
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ip_tunnels.h
Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-19 19:08:46 -08:00
ip_vs.h
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ip.h
inet: constify inet_sdif() argument
2020-11-10 17:56:54 -08:00
ipcomp.h
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ipconfig.h
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ipv6_frag.h
ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module
2020-11-19 10:49:50 -08:00
ipv6_stubs.h
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ipv6.h
ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module
2020-11-19 10:49:50 -08:00
ipx.h
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iw_handler.h
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kcm.h
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l3mdev.h
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lag.h
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lapb.h
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lib80211.h
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llc_c_ac.h
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llc_c_ev.h
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llc_c_st.h
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llc_conn.h
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llc_if.h
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llc_pdu.h
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llc_s_ac.h
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llc_s_ev.h
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llc_s_st.h
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llc_sap.h
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llc.h
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lwtunnel.h
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mac80211.h
cfg80211/mac80211: fix kernel-doc for SAR APIs
2021-01-08 20:59:37 +01:00
mac802154.h
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macsec.h
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mip6.h
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mld.h
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mpls_iptunnel.h
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mpls.h
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mptcp.h
mptcp: add port support for ADD_ADDR suboption writing
2020-12-09 19:02:15 -08:00
mrp.h
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ncsi.h
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ndisc.h
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neighbour.h
net: Exempt multicast addresses from five-second neighbor lifetime
2020-11-13 14:24:39 -08:00
net_failover.h
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net_namespace.h
Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-12-15 13:22:29 -08:00
net_ratelimit.h
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netevent.h
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netlabel.h
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netlink.h
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
netprio_cgroup.h
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netrom.h
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nexthop.h
nexthop: Pass extack to register_nexthop_notifier()
2020-11-06 11:28:49 -08:00
nl802154.h
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nsh.h
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p8022.h
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page_pool.h
net: page_pool: Add bulk support for ptr_ring
2020-11-14 02:29:00 +01:00
pie.h
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ping.h
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pkt_cls.h
net: sched: remove redundant 'rtnl_held' argument
2020-12-01 11:24:56 -08:00
pkt_sched.h
net: sched: convert tasklets to use new tasklet_setup() API
2020-11-07 10:41:15 -08:00
pptp.h
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protocol.h
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psample.h
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psnap.h
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raw.h
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rawv6.h
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red.h
net: sched: prevent invalid Scell_log shift count
2020-12-28 14:52:54 -08:00
regulatory.h
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request_sock.h
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rose.h
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route.h
lsm,selinux: pass flowi_common instead of flowi to the LSM hooks
2020-11-23 18:36:21 -05:00
rpl.h
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rsi_91x.h
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rtnetlink.h
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rtnh.h
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sch_generic.h
Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-12-15 13:22:29 -08:00
scm.h
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secure_seq.h
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seg6_hmac.h
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seg6_local.h
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seg6.h
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slhc_vj.h
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smc.h
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snmp.h
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sock_reuseport.h
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sock.h
tcp: fix TCP socket rehash stats mis-accounting
2021-01-19 19:47:20 -08:00
Space.h
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stp.h
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strparser.h
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switchdev.h
bridge: switchdev: Notify about VLAN protocol changes
2020-12-01 15:21:13 -08:00
tcp_states.h
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tcp.h
net: Limit logical shift left of TCP probe0 timeout
2020-12-14 17:34:54 -08:00
timewait_sock.h
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tipc.h
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tls_toe.h
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tls.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-11-27 18:25:27 -08:00
transp_v6.h
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tso.h
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tun_proto.h
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udp_tunnel.h
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udp.h
inet: udp{4|6}_lib_lookup_skb() skb argument is const
2020-11-10 17:57:14 -08:00
udplite.h
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vsock_addr.h
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vxlan.h
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wext.h
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x25.h
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x25device.h
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xdp_priv.h
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xdp_sock_drv.h
xsk: Introduce batched Tx descriptor interfaces
2020-11-17 22:07:40 +01:00
xdp_sock.h
xsk: Fix race in SKB mode transmit with shared cq
2020-12-18 16:10:21 +01:00
xdp.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-12-11 22:29:38 -08:00
xfrm.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
xsk_buff_pool.h
xsk: Fix race in SKB mode transmit with shared cq
2020-12-18 16:10:21 +01:00