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Daniel J Blueman 6a5719cc3e net: qrtr: resend HELLO on MHI resume 
Since the MHI HELLO exchange was relocated, it is sent only at device
registration. During a suspend-resume cycle, the firmware in WiFi
cards such as WCN7850 indefinitely waits for another HELLO,
triggering:

  ath12k_wifi7_pci 0004:01:00.0: timeout while waiting for restart complete
  ath12k_wifi7_pci 0004:01:00.0: failed to resume core: -110

Fix this by triggering the handshake from resume_early in the MHI
transport.

Validated on Qualcomm X1E-801800 on Lenovo Slim 7x across 10
suspend-resume cycles.

Fixes: 544d85de4d ("net: qrtr: Send HELLO message on endpoint register")
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Reported-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Link: https://lore.kernel.org/all/6257c447-788d-4362-851e-0d552bcf7c56@oss.qualcomm.com/
Tested-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Reported-by: Vlastimil Babka (SUSE) <vbabka@suse.com>
Link: https://lore.kernel.org/all/ab1491bb-cca5-4145-ac7d-31c966abf7b4@suse.com/
Tested-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Reported-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/all/87a4plsg4w.wl-tiwai@suse.de/
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-09-20 11:21:10 -07:00
..
6lowpan net: 6lowpan: fix mismatched comments 2026-09-02 09:03:06 +02:00
9p 9p: Add missing read barrier in virtio zero-copy path 2026-06-21 05:22:57 +00:00
802 appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
8021q vlan: fix skb_under_panic and races when toggling HW VLAN offload 2026-08-20 13:05:43 -07:00
atm pppoatm: ensure a writable skb header and linear data 2026-09-15 17:07:01 -07:00
batman-adv treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
bluetooth Bluetooth: RFCOMM: avoid socket lock inversion in listener cleanup 2026-09-15 14:55:41 -04:00
bpf bpf: Fix partial copy of non-linear test_run output 2026-06-21 17:55:06 -07:00
bridge net: bridge: vlan: fix bugs caused by switchdev deletion errors 2026-09-15 18:31:57 -07:00
can can: isotp: check register_netdevice_notifier() error in module init 2026-07-29 11:26:41 +02:00
ceph libceph: remove pinning assertion in ceph_msg_data_iter_next() 2026-09-02 12:23:05 +02:00
core net: skbuff: do not leave stale header offsets after pskb_carve() 2026-09-17 16:05:02 +02:00
dcb
devlink treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
dns_resolver keys, dns: Drop unused NUL terminator from upayload->data 2026-08-10 16:20:42 -07:00
dsa net: dsa: tag_brcm: legacy FCS: request needed tailroom 2026-09-09 13:31:08 -07:00
ethernet
ethtool ethtool: tsconfig: reject zero-valued tx_type and rx_filter bitsets 2026-08-13 17:44:54 -07:00
handshake handshake: Require admin permission for DONE command 2026-06-12 15:45:44 -07:00
hsr net: hsr: enable promiscuous mode on interlink port with fwd offload 2026-09-10 08:45:00 -07:00
ieee802154 ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink 2026-09-02 09:54:27 +02:00
ife net/sched: act_ife: Only operate on Ethernet frames 2026-08-24 11:59:59 -07:00
ipv4 tcp: exclude old ACKs from tcp fast path 2026-09-17 15:17:58 +02:00
ipv6 ipsec-2026-09-16 2026-09-16 15:54:19 -07:00
iucv net/iucv: fix the recvmsg window update 2026-08-31 15:51:22 -07:00
kcm net: kcm: Hold RCU read lock while running BPF parser 2026-08-17 13:43:58 -07:00
key ipsec-2026-06-22 2026-06-23 16:22:24 -07:00
l2tp net: l2tp: do not propagate multicast notification errors 2026-08-24 11:43:28 -07:00
l3mdev
lapb
llc llc: fix SAP refcount leak when creating incoming sockets 2026-07-17 13:17:46 +02:00
mac80211 Many fixes: 2026-09-16 15:54:56 -07:00
mac802154 mac802154: fix use-after-free of sdata via queued RX frames 2026-09-03 11:00:54 +02:00
mctp treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
mpls Summary 2026-08-20 08:46:41 -07:00
mptcp mptcp: fix bad accounting in __mptcp_subflow_push_pending() 2026-09-17 08:14:33 -07:00
ncsi net/ncsi: fix heap OOB read in NCSI_CMD_SEND_CMD payload length 2026-08-05 17:24:57 -07:00
netfilter netfilter: flowtable: hold reference on ct until flow is released 2026-09-11 13:04:15 +02:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-11 14:33:35 -07:00
netlink netlink: do not free nlk->groups while lockless readers can use it 2026-09-15 18:44:02 -07:00
nfc nfc: nci: free destination parameters when closing a connection 2026-08-11 18:10:04 +02:00
nsh
openvswitch openvswitch: avoid reallocating confirmed conntrack labels 2026-09-15 18:00:46 -07:00
packet net/packet: avoid truncating TPACKET_V3 private size 2026-09-16 17:29:11 -07:00
phonet phonet: pep: convert getsockopt to sockopt_t 2026-08-03 16:55:23 -07:00
psample net: psample: fix info leak in PSAMPLE_ATTR_DATA 2026-06-17 16:35:50 -07:00
psp net: psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb() 2026-09-16 19:18:24 -07:00
qrtr net: qrtr: resend HELLO on MHI resume 2026-09-20 11:21:10 -07:00
rds rds: ib: use rds_conn_drop() on protocol version mismatch 2026-09-14 18:47:52 -07:00
rfkill Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
rxrpc treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
sched net/sched: act_api: release tail references on DELACTION failure 2026-09-15 17:03:09 -07:00
sctp sctp: validate chunk length in the inqueue parser 2026-08-30 14:17:53 -07:00
shaper net: shaper: add a note that we expect cap dumps to be tiny 2026-06-11 12:55:23 +02:00
smc Including fixes from Bluetooth, IPSec and Netfilter. 2026-08-27 13:53:43 -07:00
strparser
sunrpc treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
switchdev
tipc tipc: Dont send random pad bytes in RESET/ACTIVATE messages 2026-08-31 20:02:36 -07:00
tls tls: device: fix out-of-bounds write in tls_append_frag() 2026-08-25 10:04:02 +02:00
unix af_unix: Unify scc_index when finalising SCC in __unix_walk_scc(). 2026-09-15 16:45:05 -07:00
vmw_vsock vsock/vmci: validate packet source for connected sockets 2026-08-31 16:50:54 -07:00
wireless Many fixes: 2026-09-16 15:54:56 -07:00
x25 net/x25: fix use-after-free of the socket by its timers 2026-07-30 18:46:45 -07:00
xdp xsk: honor XDP_TX_METADATA in zero-copy path 2026-08-24 11:12:00 -07:00
xfrm ipsec-2026-09-16 2026-09-16 15:54:19 -07:00
compat.c net: af_unix: useful handling of LSM denials on SCM_RIGHTS 2026-08-17 18:14:52 -07:00
devres.c
Kconfig appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
Kconfig.debug
Makefile appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
socket.c Major changes: 2026-08-20 07:36:20 -07:00
sysctl_net.c net: enforce net sysctl registration 2026-08-13 13:12:21 +02:00