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Martin Schiller a4989fa911 net/lapb: support netdev events 
This patch allows layer2 (LAPB) to react to netdev events itself and
avoids the detour via layer3 (X.25).

1. Establish layer2 on NETDEV_UP events, if the carrier is already up.

2. Call lapb_disconnect_request() on NETDEV_GOING_DOWN events to signal
   the peer that the connection will go down.
   (Only when the carrier is up.)

3. When a NETDEV_DOWN event occur, clear all queues, enter state
   LAPB_STATE_0 and stop all timers.

4. The NETDEV_CHANGE event makes it possible to handle carrier loss and
   detection.

   In case of Carrier Loss, clear all queues, enter state LAPB_STATE_0
   and stop all timers.

   In case of Carrier Detection, we start timer t1 on a DCE interface,
   and on a DTE interface we change to state LAPB_STATE_1 and start
   sending SABM(E).

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Acked-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2020-11-27 17:22:51 -08:00
..
6lowpan
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9p net: 9p: Fix kerneldoc warnings of missing parameters etc 2020-11-02 12:25:52 -08:00
802
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8021q net: vlan: Fixed signedness in vlan_group_prealloc_vid() 2020-09-28 00:51:39 -07:00
appletalk net: appletalk: fix kerneldoc warnings 2020-10-30 11:48:17 -07:00
atm atm: nicstar: Replace in_interrupt() usage 2020-11-18 16:43:55 -08:00
ax25
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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 bridge: mrp: Implement LC mode for MRP 2020-11-25 13:33:35 -08:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: gw: support modification of Classical CAN DLCs 2020-11-20 12:05:14 +01:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core net/sched: fix miss init the mru in qdisc_skb_cb 2020-11-27 14:36:02 -08:00
dcb net: dcb: Fix kerneldoc warnings 2020-10-30 11:59:54 -07:00
dccp net: dccp: convert tasklets to use new tasklet_setup() API 2020-11-07 10:40:56 -08:00
decnet treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
dns_resolver
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dsa net: dsa: tag_hellcreek: Cleanup includes 2020-11-23 16:57:21 -08:00
ethernet net: datagram: fix some kernel-doc markups 2020-11-17 14:15:03 -08:00
ethtool Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-12 16:54:48 -08:00
hsr genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ieee802154 treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
ife
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ipv4 mptcp: track window announced to peer 2020-11-20 15:33:25 -08:00
ipv6 IPv6: RTM_GETROUTE: Add RTA_ENCAP to result 2020-11-19 21:56:20 -08:00
iucv net/af_iucv: fix null pointer dereference on shutdown 2020-11-10 18:08:17 -08:00
kcm
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key
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l2tp genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
l3mdev net: l3mdev: Fix kerneldoc warning 2020-10-30 11:43:42 -07:00
lapb net/lapb: support netdev events 2020-11-27 17:22:51 -08:00
llc net: llc: Fix kerneldoc warnings 2020-10-30 11:34:09 -07:00
mac80211 Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
mac802154 net: mac802154: convert tasklets to use new tasklet_setup() API 2020-11-07 10:40:56 -08:00
mpls mpls: drop skb's dst in mpls_forward() 2020-11-03 12:55:53 -08:00
mptcp mptcp: be careful on MPTCP-level ack. 2020-11-25 13:36:16 -08:00
ncsi net/ncsi: Fix netlink registration 2020-11-12 17:00:13 -08:00
netfilter net: openvswitch: Be liberal in tcp conntrack. 2020-11-20 09:53:48 -08:00
netlabel Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
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 treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
nsh
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openvswitch net: openvswitch: Be liberal in tcp conntrack. 2020-11-20 09:53:48 -08:00
packet net: don't include ethtool.h from netdevice.h 2020-11-23 17:27:04 -08:00
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: Release distant nodes along the bridge node 2020-11-11 15:29:34 -08:00
rds RDMA: Add rdma_connect_locked() 2020-10-28 09:14:49 -03:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-12 09:18:06 +01:00
rose treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rxrpc rxrpc: Ask the security class how much space to allow in a packet 2020-11-23 19:53:11 +00:00
sched net/sched: sch_frag: add generic packet fragment support. 2020-11-27 14:36:02 -08:00
sctp sctp: Fix some typo 2020-11-23 17:44:11 -08:00
smc Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
strparser
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sunrpc net: datagram: fix some kernel-doc markups 2020-11-17 14:15:03 -08:00
switchdev net: switchdev: Fixed kerneldoc warning 2020-09-23 17:46:31 -07:00
tipc treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
tls net/tls: add CHACHA20-POLY1305 configuration 2020-11-27 14:32:37 -08:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
wireless Some updates: 2020-11-13 12:03:22 -08:00
x25 net/x25: handle additional netdev events 2020-11-27 17:22:51 -08:00
xdp xsk: Fix possible memory leak at socket close 2020-10-29 15:19:56 +01:00
xfrm net: xfrm: use core API for updating/providing stats 2020-11-14 17:01:08 -08:00
Kconfig wimax: move out to staging 2020-10-29 19:27:45 +01:00
Makefile wimax: move out to staging 2020-10-29 19:27:45 +01:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c
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socket.c net: don't include ethtool.h from netdevice.h 2020-11-23 17:27:04 -08:00
sysctl_net.c
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