AuxXxilium/linux_dsm_epyc7002
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913c740c7d
linux_dsm_epyc7002/net
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Karsten Graul 913c740c7d net/smc: fix wait on already cleared link 
[ Upstream commit 8f3d65c166797746455553f4eaf74a5f89f996d4 ]

There can be a race between the waiters for a tx work request buffer
and the link down processing that finally clears the link. Although
all waiters are woken up before the link is cleared there might be
waiters which did not yet get back control and are still waiting.
This results in an access to a cleared wait queue head.

Fix this by introducing atomic reference counting around the wait calls,
and wait with the link clear processing until all waiters have finished.
Move the work request layer related calls into smc_wr.c and set the
link state to INACTIVE before calling smcr_link_clear() in
smc_llc_srv_add_link().

Fixes: 15e1b99aad ("net/smc: no WR buffer wait for terminating link group")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-07-05 18:54:23 +02:00
..
6lowpan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
9p net: 9p: advance iov on empty read 2021-04-07 15:00:08 +02:00
802 net/802/garp: fix memleak in garp_request_join() 2021-07-31 08:16:11 +02:00
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 15:00:08 +02:00
atm net: atm: fix update of position index in lec_seq_next 2020-10-31 12:26:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv batman-adv: Avoid WARN_ON timing related checks 2021-06-23 14:42:41 +02:00
bluetooth Bluetooth: defer cleanup of resources in hci_unregister_dev() 2024-07-05 18:52:09 +02:00
bpf bpf, test: fix NULL pointer dereference on invalid expected_attach_type 2021-07-28 14:35:37 +02:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:56:29 +02:00
bridge netfilter: nf_conntrack_bridge: Fix memory leak when error 2024-07-05 18:54:11 +02:00
caif net: fix uninit-value in caif_seqpkt_sendmsg 2021-07-28 14:35:38 +02:00
can can: j1939: j1939_session_deactivate(): clarify lifetime of session object 2024-07-05 18:06:34 +02:00
ceph init: add dsm gpl source 2024-07-05 18:00:04 +02:00
core net: Fix zero-copy head len calculation. 2024-07-05 18:07:38 +02:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
dccp ipv6: weaken the v4mapped source check 2021-03-30 14:32:01 +02:00
decnet net: decnet: Fix sleeping inside in af_decnet 2021-07-28 14:35:38 +02:00
dns_resolver docs: networking: convert dns_resolver.txt to ReST 2020-04-28 14:39:46 -07:00
dsa net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave() 2021-07-25 14:36:20 +02:00
ethernet init: add dsm gpl source 2024-07-05 18:00:04 +02:00
ethtool net: ethtool: clear heap allocations for ethtool function 2021-06-30 08:47:20 -04:00
hsr net: hsr: fix mac_len checks 2021-06-03 09:00:50 +02:00
ieee802154 net: ieee802154: fix null deref in parse dev addr 2021-06-18 10:00:03 +02:00
ife
ipv4 net, gro: Set inner transport header offset in tcp/udp GRO hook 2024-07-05 18:52:08 +02:00
ipv6 init: add dsm gpl source 2024-07-05 18:00:04 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key init: add dsm gpl source 2024-07-05 18:00:04 +02:00
l2tp net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc net: llc: fix skb_over_panic 2024-07-05 18:04:53 +02:00
mac80211 mac80211: fix enabling 4-address mode on a sta vif after assoc 2024-07-05 18:04:07 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-14 08:42:13 +02:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:06:11 +01:00
mptcp mptcp: fix warning in __skb_flow_dissect() when do syn cookie for subflow join 2021-07-28 14:35:34 +02:00
ncsi net/ncsi: Avoid channel_monitor hrtimer deadlock 2021-04-14 08:42:08 +02:00
netfilter netfilter: nft_nat: allow to specify layer 4 protocol NAT only 2024-07-05 18:04:19 +02:00
netlabel netlabel: Fix memory leak in netlbl_mgmt_add_common 2021-07-14 16:56:22 +02:00
netlink netlink: disable IRQs for netlink_lock_table() 2021-06-16 12:01:36 +02:00
netrom netrom: Decrease sock refcount when sock timers expire 2021-07-28 14:35:38 +02:00
nfc net/nfc/rawsock.c: fix a permission check bug 2021-06-16 12:01:35 +02:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch init: add dsm gpl source 2024-07-05 18:00:04 +02:00
packet init: add dsm gpl source 2024-07-05 18:00:04 +02:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: fix memory leaks 2024-07-05 18:04:44 +02:00
rds net: rds: fix memory leak in rds_recvmsg 2021-06-23 14:42:42 +02:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-12 09:18:06 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc rxrpc: Fix clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched net: sched: fix lockdep_set_class() typo error for sch->seqlock 2024-07-05 18:52:09 +02:00
sctp sctp: move the active_key update after sh_keys is added 2024-07-05 18:52:08 +02:00
smc net/smc: fix wait on already cleared link 2024-07-05 18:54:23 +02:00
strparser
sunrpc init: add dsm gpl source 2024-07-05 18:00:04 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc tipc: do not write skb_shinfo frags when doing decrytion 2024-07-05 18:04:53 +02:00
tls tls: prevent oversized sendfile() hangs by ignoring MSG_MORE 2021-07-14 16:56:24 +02:00
unix init: add dsm gpl source 2024-07-05 18:00:04 +02:00
vmw_vsock vsock: notify server to shutdown when client has pending signal 2021-07-19 09:44:52 +02:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless cfg80211: Fix possible memory leak in function cfg80211_bss_update 2024-07-05 18:03:16 +02:00
x25 net/x25: Return the correct errno code 2021-06-18 10:00:06 +02:00
xdp xsk: Fix broken Tx ring validation 2021-07-14 16:56:23 +02:00
xfrm net/xfrm/compat: Copy xfrm_spdattr_type_t atributes 2024-07-05 18:52:30 +02:00
compat.c net: Return the correct errno code 2021-06-18 10:00:06 +02:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig init: add dsm gpl source 2024-07-05 18:00:04 +02:00
Makefile net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
socket.c net: make get_net_ns return error if NET_NS is disabled 2021-06-23 14:42:44 +02:00
sysctl_net.c