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a082ec897f
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Hans Wippel a082ec897f net/smc: improve peer ID in CLC decline for SMC-R 
According to RFC 7609, all CLC messages contain a peer ID that consists
of a unique instance ID and the MAC address of one of the host's RoCE
devices. But if a SMC-R connection cannot be established, e.g., because
no matching pnet table entry is found, the current implementation uses a
zero value in the CLC decline message although the host's peer ID is set
to a proper value.

If no RoCE and no ISM device is usable for a connection, there is no LGR
and the LGR check in smc_clc_send_decline() prevents that the peer ID is
copied into the CLC decline message for both SMC-D and SMC-R. So, this
patch modifies the check to also accept the case of no LGR. Also, only a
valid peer ID is copied into the decline message.

Signed-off-by: Hans Wippel <ndev@hwipl.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-26 20:27:06 -08:00
..
6lowpan
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
802 net: 802: psnap.c: Use built-in RCU list checking 2020-02-24 13:02:53 -08:00
8021q net: vlan: suppress "failed to kill vid" warnings 2020-02-17 14:30:54 -08:00
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
atm proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ax25 net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -08:00
batman-adv Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
bluetooth Bluetooth: Fix race condition in hci_release_sock() 2020-01-26 10:34:17 +02:00
bpf bpf: Allow to change skb mark in test_run 2019-12-18 17:05:58 -08:00
bpfilter kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
bridge bridge: br_stp: Use built-in RCU list checking 2020-02-19 11:13:43 -08:00
caif caif_usb: fix spelling mistake "to" -> "too" 2020-01-24 08:12:06 +01:00
can can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-08 11:52:02 +01:00
ceph Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:26:41 -08:00
core net: fix sysfs permssions when device changes network namespace 2020-02-26 20:07:26 -08:00
dcb
dccp dccp: Add missing annotation for dccp_child_process() 2020-02-24 13:26:49 -08:00
decnet net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -08:00
dns_resolver
dsa net: dsa: tag_ar9331: Make sure there is headroom for tag 2020-02-14 07:34:51 -08:00
ethernet net: remove eth_change_mtu 2020-01-27 11:09:31 +01:00
ethtool Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-21 13:39:34 -08:00
hsr net: hsr: Pass lockdep expression to RCU lists 2020-02-19 10:55:42 -08:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 tcp-zerocopy: Update returned getsockopt() optlen. 2020-02-26 20:24:22 -08:00
ipv6 net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc. 2020-02-24 13:31:42 -08:00
iucv treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key
l2tp l2tp: Allow duplicate session creation with UDP 2020-02-04 12:35:49 +01:00
l3mdev
lapb
llc net: Add missing annotation for llc_seq_start() 2020-02-24 13:26:49 -08:00
mac80211 mac80211: Add api to support configuring TID specific configuration 2020-02-24 14:07:01 +01:00
mac802154
mpls net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
mptcp mptcp: fix bogus socket flag values 2020-02-18 12:05:53 -08:00
ncsi net/ncsi: Support for multi host mellanox card 2020-01-09 18:36:22 -08:00
netfilter netfilter: nft_set_pipapo: Don't abuse unlikely() in pipapo_refill() 2020-02-18 22:07:09 +01:00
netlabel netlabel_domainhash.c: Use built-in RCU list checking 2020-02-18 12:44:23 -08:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-21 13:39:34 -08:00
netrom net: netrom: Add missing annotation for nr_neigh_stop() 2020-02-24 13:26:49 -08:00
nfc NFC: digital: Replace zero-length array with flexible-array member 2020-02-17 19:05:05 -08:00
nsh
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-21 13:39:34 -08:00
packet y2038: core, driver and file system changes 2020-01-29 14:55:47 -08:00
phonet net: Remove redundant BUG_ON() check in phonet_pernet 2020-01-03 12:25:50 -08:00
psample net: psample: fix skb_over_panic 2019-11-26 14:40:13 -08:00
qrtr net: qrtr: fix spelling mistake "serivce" -> "service" 2020-02-24 15:41:14 -08:00
rds net/rds: Track user mapped pages through special API 2020-02-16 18:37:09 -08:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2019-12-16 10:15:49 +01:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
rxrpc rxrpc: Fix call RCU cleanup using non-bh-safe locks 2020-02-07 11:20:57 +01:00
sched flow_offload: pass action cookie through offload structures 2020-02-25 11:05:54 -08:00
sctp sctp: Add missing annotation for sctp_transport_walk_stop() 2020-02-24 13:26:49 -08:00
smc net/smc: improve peer ID in CLC decline for SMC-R 2020-02-26 20:27:06 -08:00
strparser
sunrpc xprtrdma: Fix DMA scatter-gather list mapping imbalance 2020-02-13 15:35:33 -05:00
switchdev net: switchdev: Replace zero-length array with flexible-array member 2020-02-17 19:05:06 -08:00
tipc tipc: fix successful connect() but timed out 2020-02-10 10:23:00 +01:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-02-21 15:22:45 -08:00
unix af_unix: Add missing annotation for unix_wait_for_peer() 2020-02-24 13:26:49 -08:00
vmw_vsock net: virtio_vsock: Enhance connection semantics 2020-02-16 19:01:49 -08:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless A new set of changes: 2020-02-24 15:41:54 -08:00
x25 net: x25: convert to list_for_each_entry_safe() 2020-02-16 18:59:42 -08:00
xdp xsk: Publish global consumer pointers when NAPI is finished 2020-02-11 15:51:11 +01:00
xfrm xfrm: interface: use icmp_ndo_send helper 2020-02-13 14:19:00 -08:00
compat.c y2038: socket: use __kernel_old_timespec instead of timespec 2019-11-15 14:38:29 +01:00
Kconfig net: disable BRIDGE_NETFILTER by default 2020-02-20 15:02:02 -08:00
Makefile mptcp: Add MPTCP socket stubs 2020-01-24 13:44:07 +01:00
socket.c socket: fix unused-function warning 2020-01-08 15:02:21 -08:00
sysctl_net.c