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f23a9868b1
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Thierry Escande f23a9868b1 NFC: digital: Fix target DEP_REQ I-PDU handling after ATN PDU 
When the initiator sends a DEP_REQ I-PDU, the target device may not
reply in a timely manner. In this case the initiator device must send an
attention PDU (ATN) and if the recipient replies with an ATN PDU in
return, then the last I-PDU must be sent again by the initiator.

This patch fixes how the target handles I-PDU received after an ATN PDU
has been received.

There are 2 possible cases:
- The target has received the initial DEP_REQ and sends back the DEP_RES
  but the initiator did not receive it. In this case, after the
  initiator has sent an ATN PDU and the target replied it (with an ATN
  as well), the initiator sends the saved skb of the initial DEP_REQ
  again and the target replies with the saved skb of the initial
  DEP_RES.
- Or the target did not even received the initial DEP_REQ. In this case,
  after the ATN PDUs exchange, the initiator sends the saved skb and the
  target simply passes it up, just as usual.

This behavior is controlled using the atn_count and the PNI field of the
digital device structure.

Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-07-11 01:57:50 +02:00
..
6lowpan 6lowpan: add support for 802.15.4 short addr handling 2016-06-15 20:41:24 -07:00
9p remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
802
8021q vlan: Propagate MAC address to VLANs 2016-05-31 11:56:48 -07:00
appletalk
atm net/atm: sk_err_soft must be positive 2016-05-23 13:51:10 -07:00
ax25 AX.25: Close socket connection on session completion 2016-06-18 20:55:34 -07:00
batman-adv This feature patchset includes the following changes: 2016-07-01 17:05:00 -04:00
bluetooth net: add netdev_lockdep_set_classes() helper 2016-06-09 13:28:37 -07:00
bridge net: bridge: add support for IGMP/MLD stats and export them via netlink 2016-06-30 06:18:24 -04:00
caif caif: Remove unneeded header file 2016-06-28 05:26:14 -04:00
can can: only call can_stat_update with procfs 2016-06-23 11:23:49 +02:00
ceph libceph: use %s instead of %pE in dout()s 2016-05-30 23:00:23 +02:00
core net/devlink: Add E-Switch mode control 2016-07-02 14:40:40 -04:00
dcb
dccp dccp: do not assume DCCP code is non preemptible 2016-05-02 17:02:25 -04:00
decnet decnet: Do not build routes to devices without decnet private data. 2016-04-10 23:01:30 -04:00
dns_resolver KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
dsa net: dsa: Initialize CPU port ethtool ops per tree 2016-06-08 11:23:42 -07:00
ethernet eth: Pull header from first fragment via eth_get_headlen 2016-02-24 13:58:05 -05:00
hsr net/hsr: Use setup_timer and mod_timer. 2016-05-16 14:00:43 -04:00
ieee802154 6lowpan: add support for 802.15.4 short addr handling 2016-06-15 20:41:24 -07:00
ipv4 tcp: md5: use kmalloc() backed scratch areas 2016-07-01 04:02:55 -04:00
ipv6 tcp: md5: use kmalloc() backed scratch areas 2016-07-01 04:02:55 -04:00
ipx
irda TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
iucv af_iucv: use paged SKBs for big inbound messages 2016-06-15 12:21:05 -07:00
kcm bpf: refactor bpf_prog_get and type check into helper 2016-07-01 16:00:47 -04:00
key
l2tp ipv6: use TOS marks from sockets for routing decision 2016-06-11 15:33:26 -07:00
l3mdev net: vrf: Implement get_saddr for IPv6 2016-06-17 21:25:29 -07:00
lapb net/lapb: tuse %*ph to dump buffers 2016-05-29 22:33:25 -07:00
llc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
mpls mpls: allow routes on ipgre devices 2016-06-16 17:12:07 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
netlabel netlabel: fix a problem with netlbl_secattr_catmap_setrng() 2016-04-05 16:10:47 -04:00
netlink net/netlink/af_netlink.h: Remove unused structure. 2016-06-09 22:26:24 -07:00
netrom
nfc NFC: digital: Fix target DEP_REQ I-PDU handling after ATN PDU 2016-07-11 01:57:50 +02:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
packet bpf: refactor bpf_prog_get and type check into helper 2016-07-01 16:00:47 -04:00
phonet
qrtr Merge tag 'qcom-soc-for-4.7-2' into net-next 2016-05-17 14:11:19 -04:00
rds RDS: Do not send a pong to an incoming ping with 0 src port 2016-07-01 16:45:18 -04:00
rfkill rfkill: Use switch to demux userspace operations 2016-04-05 10:48:53 +02:00
rose
rxrpc rxrpc: Kill off the rxrpc_transport struct 2016-06-22 14:00:23 +01:00
sched bpf: refactor bpf_prog_get and type check into helper 2016-07-01 16:00:47 -04:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
sunrpc rpc: share one xps between all backchannels 2016-06-15 10:32:25 -04:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-05-17 13:58:49 -04:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
unix Merge branch 'overlayfs-af_unix-fix' into overlayfs-linus 2016-06-12 12:05:21 +02:00
vmw_vsock vsock: make listener child lock ordering explicit 2016-06-27 10:44:46 -04:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
x25 net: fix a kernel infoleak in x25 module 2016-05-09 22:45:33 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
compat.c packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
Kconfig bpf: add generic constant blinding for use in jits 2016-05-16 13:49:32 -04:00
Makefile net: Add Qualcomm IPC router 2016-05-08 23:46:14 -04:00
socket.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
sysctl_net.c