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Boris Sukholitko 34951fcf26 flow_dissector: Add number of vlan tags dissector 
Our customers in the fiber telecom world have network configurations
where they would like to control their traffic according to the number
of tags appearing in the packet.

For example, TR247 GPON conformance test suite specification mostly
talks about untagged, single, double tagged packets and gives lax
guidelines on the vlan protocol vs. number of vlan tags.

This is different from the common IT networks where 802.1Q and 802.1ad
protocols are usually describe single and double tagged packet. GPON
configurations that we work with have arbitrary mix the above protocols
and number of vlan tags in the packet.

The goal is to make the following TC commands possible:

tc filter add dev eth1 ingress flower \
  num_of_vlans 1 vlan_prio 5 action drop

From our logs, we have redirect rules such that:

tc filter add dev $GPON ingress flower num_of_vlans $N \
     action mirred egress redirect dev $DEV

where N can range from 0 to 3 and $DEV is the function of $N.

Also there are rules setting skb mark based on the number of vlans:

tc filter add dev $GPON ingress flower num_of_vlans $N vlan_prio \
    $P action skbedit mark $M

This new dissector allows extracting the number of vlan tags existing in
the packet.

Signed-off-by: Boris Sukholitko <boris.sukholitko@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2022-04-20 11:09:13 +01:00
..
9p net/p9: load default transports 2022-01-10 10:00:09 +09:00
bluetooth Networking changes for 5.18. 2022-03-24 13:13:26 -07:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: Use struct_group() to zero struct iucv_sock region 2021-11-19 11:52:25 +00:00
netfilter netfilter: ecache: move to separate structure 2022-04-08 12:08:58 +02:00
netns Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2022-03-19 14:49:08 +00:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-11-17 20:17:05 -08:00
phonet
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sctp net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
tc_act net: sched: support hash selecting tx queue 2022-04-19 12:20:45 +02:00
6lowpan.h
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Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
act_api.h net/sched: act_api: Add extack to offload_act_setup() callback 2022-04-08 13:45:43 +01:00
addrconf.h net: Add new protocol attribute to IP addresses 2022-02-18 21:20:06 -08:00
af_ieee802154.h
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af_rxrpc.h afs: Don't truncate iter during data fetch 2021-04-23 10:17:26 +01:00
af_unix.h af_unix: Replace the big lock with small locks. 2021-11-26 18:01:58 -08:00
af_vsock.h vsock: each transport cycles only on its own sockets 2022-03-11 23:14:19 -08:00
ah.h
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amt.h amt: add mld report message handler 2021-11-01 13:36:09 +00:00
arp.h ipv4: Invalidate neighbour for broadcast address upon address addition 2022-02-21 11:44:30 +00:00
atmclip.h
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ax25.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-03 17:36:16 -08:00
ax88796.h ax88796: export ax_NS8390_init() hook 2021-08-03 13:05:25 +01:00
bareudp.h bareudp: Move definition of struct bareudp_conf to bareudp.c 2021-12-13 12:34:09 +00:00
bond_3ad.h bonding: fix data-races around agg_select_timer 2022-02-15 14:35:18 +00:00
bond_alb.h bonding: make tx_rebalance_counter an atomic 2021-12-03 14:16:48 +00:00
bond_options.h bonding: add new option ns_ip6_target 2022-02-21 12:13:45 +00:00
bonding.h net: add per-cpu storage and net->core_stats 2022-03-11 23:17:24 -08:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h tcp: fix another uninit-value (sk_rx_queue_mapping) 2021-12-03 14:15:49 +00:00
calipso.h
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cfg80211-wext.h
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cfg80211.h cfg80211: Support configuration of station EHT capabilities 2022-02-16 15:43:25 +01:00
cfg802154.h net: ieee802154: Provide a kdoc to the address structure 2022-02-01 21:03:48 +01:00
checksum.h powerpc/net: Implement powerpc specific csum_shift() to remove branch 2022-03-11 10:57:22 +00:00
cipso_ipv4.h
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cls_cgroup.h
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codel.h codel: remove unnecessary pkt_sched.h include 2021-12-22 15:03:51 -08:00
codel_impl.h codel: remove unnecessary sock.h include 2021-12-22 15:03:47 -08:00
codel_qdisc.h codel: remove unnecessary pkt_sched.h include 2021-12-22 15:03:51 -08:00
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2021-08-05 11:46:42 +01:00
datalink.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
dcbevent.h
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dcbnl.h
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devlink.h devlink: add port to line card relationship set 2022-04-18 11:00:18 +01:00
dn.h decnet: constify dev_addr passing 2021-10-13 09:40:46 -07:00
dn_dev.h
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dn_fib.h net: convert fib_treeref from int to refcount_t 2021-07-30 15:33:24 +02:00
dn_neigh.h
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dn_nsp.h
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dn_route.h
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dsa.h net: dsa: pass extack to dsa_switch_ops :: port_mirror_add() 2022-03-17 17:42:47 -07:00
dsfield.h
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dst.h net: dst: add net device refcount tracking to dst_entry 2021-12-06 16:05:10 -08:00
dst_cache.h wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
dst_metadata.h net: fix a memleak when uncloning an skb dst and its metadata 2022-02-09 11:41:47 +00:00
dst_ops.h
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erspan.h
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esp.h esp: Fix possible buffer overflow in ESP transformation 2022-03-07 13:14:03 +01:00
espintcp.h
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ethoc.h
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failover.h net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.h
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fib_rules.h fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
firewire.h
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flow.h net: Add l3mdev index to flow struct and avoid oif reset for port devices 2022-03-15 20:20:02 -07:00
flow_dissector.h flow_dissector: Add number of vlan tags dissector 2022-04-20 11:09:13 +01:00
flow_offload.h net/sched: add vlan push_eth and pop_eth action to the hardware IR 2022-03-16 19:59:36 -07:00
fou.h
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fq.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
fq_impl.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
garp.h
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gen_stats.h net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
genetlink.h mptcp: avoid lock_fast usage in accept path 2021-02-12 16:31:46 -08:00
geneve.h
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gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro.h net: gro: Fix a 'directive in macro's argument list' sparse warning 2022-02-18 11:00:25 +00:00
gro_cells.h
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gtp.h gtp: Add support for checking GTP device type 2022-03-11 08:28:27 -08:00
gue.h
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hwbm.h
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icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h ieee80211: radiotap: fix -Wcast-qual warnings 2022-02-04 16:25:21 +01:00
ieee802154_netdev.h
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if_inet6.h ipv6: fix locking issues with loops over idev->addr_list 2022-04-06 22:09:39 -07:00
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 bpf: Allow rewriting to ports under ip_unprivileged_port_start 2021-01-27 18:18:15 -08:00
inet_connection_sock.h tcp: Use BPF timeout setting for SYN ACK RTO 2022-02-02 14:45:18 +00:00
inet_dscp.h ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules 2022-02-07 20:12:45 -08:00
inet_ecn.h net: add skb_get_dsfield() helper 2021-10-15 11:33:08 +01:00
inet_frag.h net: ip: Handle delivery_time in ip defrag 2022-03-03 14:38:48 +00:00
inet_hashtables.h tcp: seq_file: Replace listening_hash with lhash2 2021-07-23 16:44:57 -07:00
inet_sock.h ipv4/raw: support binding to nonlocal addresses 2021-11-17 20:21:52 -08:00
inet_timewait_sock.h tcp/dccp: get rid of inet_twsk_purge() 2022-01-25 11:25:21 +00:00
inetpeer.h
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ioam6.h treewide: Replace zero-length arrays with flexible-array members 2022-02-17 07:00:39 -06:00
ip.h ipv4: Make ip_idents_reserve static 2022-01-31 11:33:10 +00:00
ip6_checksum.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
ip6_fib.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
ip6_route.h ipv6: ip6_skb_dst_mtu() cleanups 2021-11-19 20:09:55 -08:00
ip6_tunnel.h ipv6: add net device refcount tracker to struct ip6_tnl 2021-12-06 16:05:11 -08:00
ip_fib.h ipv4: Use dscp_t in struct fib_entry_notifier_info 2022-04-11 17:37:50 -07:00
ip_tunnels.h sit: add net device refcount tracking to ip_tunnel 2021-12-06 16:05:11 -08:00
ip_vs.h ipvs: add sysctl_run_estimation to support disable estimation 2021-10-07 19:52:58 +02:00
ipcomp.h
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ipconfig.h
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ipv6.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
ipv6_frag.h net: don't include ndisc.h from ipv6.h 2022-02-04 14:15:11 -08:00
ipv6_stubs.h net: ipv6: add fib6_nh_release_dsts stub 2021-11-22 15:44:49 +00:00
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 net: lapb: Make "lapb_t1timer_running" able to detect an already running timer 2021-03-23 14:14:50 -07:00
lib80211.h
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llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-07 19:25:29 +00:00
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 llc: add net device refcount tracker 2021-12-07 20:44:59 -08:00
llc_if.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
llc_pdu.h net: llc: fix skb_over_panic 2021-07-27 13:05:56 +01:00
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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lwtunnel.h netfilter: add netfilter hooks to SRv6 data plane 2021-08-30 01:51:36 +02:00
mac80211.h mac80211: MBSSID beacon handling in AP mode 2022-03-15 11:36:26 +01:00
mac802154.h net: mac802154: Explain the use of ieee802154_wake/stop_queue() 2022-01-28 11:23:41 +01:00
macsec.h net: macsec: fix the length used to copy the key for offloading 2021-06-24 12:41:12 -07:00
mctp.h mctp: Use output netdev to allocate skb headroom 2022-04-01 12:04:15 +01:00
mctpdevice.h mctp: Pass flow data & flow release events to drivers 2021-10-29 13:23:51 +01:00
mip6.h
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mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls.h
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mpls_iptunnel.h
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mptcp.h mptcp: mptcp_parse_option is no longer exported 2022-02-16 20:52:04 -08:00
mrp.h
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ncsi.h
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ndisc.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-03 11:55:12 -08:00
neighbour.h net, neigh: Do not trigger immediate probes on NUD_FAILED from neigh_managed_work 2022-02-02 20:30:18 -08:00
net_failover.h
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net_namespace.h net: make net->dev_unreg_count atomic 2022-02-10 15:30:26 +00:00
net_ratelimit.h
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net_trackers.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
netevent.h
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netlabel.h
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netlink.h net: netlink: add the case when nlh is NULL 2021-07-27 11:43:50 +01:00
netprio_cgroup.h
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netrom.h
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nexthop.h net: ipv4: Fix rtnexthop len when RTA_FLOW is present 2021-09-24 14:07:10 +01:00
nl802154.h net: ieee802154: handle iftypes as u32 2021-11-16 18:02:46 +01:00
nsh.h
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p8022.h
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page_pool.h net: page_pool: introduce ethtool stats 2022-04-15 10:43:47 +01:00
pie.h
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ping.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
pkt_cls.h net/sched: act_api: Add extack to offload_act_setup() callback 2022-04-08 13:45:43 +01:00
pkt_sched.h net: sched: remove psched_tdiff_bounded() 2022-01-27 13:53:27 +00:00
pptp.h
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protocol.h net: Remove the member netns_ok 2021-05-17 15:29:35 -07:00
psample.h psample: Add a fwd declaration for skbuff 2021-08-09 15:34:21 -07:00
psnap.h
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raw.h
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rawv6.h
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red.h sch_red: fix off-by-one checks in red_check_params() 2021-03-25 17:40:43 -07:00
regulatory.h
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request_sock.h tcp: Use BPF timeout setting for SYN ACK RTO 2022-02-02 14:45:18 +00:00
rose.h rose: constify dev_addr passing 2021-10-13 09:40:45 -07:00
route.h ipv4: remove sparse error in ip_neigh_gw4() 2022-01-27 08:38:33 -08:00
rpl.h
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rsi_91x.h
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rtnetlink.h net: rtnetlink: add bulk delete support flag 2022-04-13 12:46:26 +01:00
rtnh.h
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sch_generic.h net: sched: remove qdisc_qlen_cpu() 2022-01-27 13:53:27 +00:00
scm.h
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secure_seq.h
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seg6.h udp6: Use Segment Routing Header for dest address if present 2022-01-04 12:17:35 +00:00
seg6_hmac.h
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seg6_local.h
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selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h
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smc.h
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snmp.h
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sock.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
sock_reuseport.h tcp: Add reuseport_migrate_sock() to select a new listener. 2021-06-15 18:01:05 +02:00
stp.h
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strparser.h tls: rx: don't store the decryption status in socket context 2022-04-08 11:49:08 +01:00
switchdev.h net: bridge: mst: Notify switchdev drivers of MST state changes 2022-03-17 16:49:58 -07:00
tcp.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
tcp_states.h
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timewait_sock.h
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tipc.h
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tls.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
tls_toe.h
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transp_v6.h
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tso.h
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tun_proto.h
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udp.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
udp_tunnel.h udp: call udp_encap_enable for v6 sockets when enabling encap 2021-02-04 18:37:14 -08:00
udplite.h udplite: remove udplite_csum_outgoing() 2022-01-27 13:53:27 +00:00
vsock_addr.h
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vxlan.h drivers: vxlan: vnifilter: per vni stats 2022-03-01 08:38:02 +00:00
wext.h
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x25.h
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x25device.h
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xdp.h net: veth: Account total xdp_frame len running ndo_xdp_xmit 2022-03-17 20:33:52 +01:00
xdp_priv.h xsk: Wipe out dead zero_copy_allocator declarations 2021-12-14 00:24:24 +01:00
xdp_sock.h net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
xdp_sock_drv.h i40e: xsk: Move tmp desc array from driver to pool 2022-01-27 17:25:32 +01:00
xfrm.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2022-03-19 14:49:08 +00:00
xsk_buff_pool.h i40e: xsk: Move tmp desc array from driver to pool 2022-01-27 17:25:32 +01:00