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linux/drivers
Stephan Gerhold 0d1fac6d26 net: wwan: mhi_wwan_mbim: Silence sequence number glitch errors
When using the Qualcomm X55 modem on the ThinkPad X13s, the kernel log is
constantly being filled with errors related to a "sequence number glitch",
e.g.:

	[ 1903.284538] sequence number glitch prev=16 curr=0
	[ 1913.812205] sequence number glitch prev=50 curr=0
	[ 1923.698219] sequence number glitch prev=142 curr=0
	[ 2029.248276] sequence number glitch prev=1555 curr=0
	[ 2046.333059] sequence number glitch prev=70 curr=0
	[ 2076.520067] sequence number glitch prev=272 curr=0
	[ 2158.704202] sequence number glitch prev=2655 curr=0
	[ 2218.530776] sequence number glitch prev=2349 curr=0
	[ 2225.579092] sequence number glitch prev=6 curr=0

Internet connectivity is working fine, so this error seems harmless. It
looks like modem does not preserve the sequence number when entering low
power state; the amount of errors depends on how actively the modem is
being used.

A similar issue has also been seen on USB-based MBIM modems [1]. However,
in cdc_ncm.c the "sequence number glitch" message is a debug message
instead of an error. Apply the same to the mhi_wwan_mbim.c driver to
silence these errors when using the modem.

[1]: https://lists.freedesktop.org/archives/libmbim-devel/2016-November/000781.html

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patch.msgid.link/20250212-mhi-wwan-mbim-sequence-glitch-v1-1-503735977cbd@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-14 13:39:55 -08:00
..
accel A couple of fixes for ivpu to error handling, komeda for format 2025-02-07 14:47:25 +10:00
accessibility
acpi Merge branches 'acpi-property' and 'acpi-resource' 2025-02-07 13:06:31 +01:00
amba
android Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
ata ata changes for 6.14 part2 2025-01-31 11:07:56 -08:00
atm
auxdisplay auxdisplay for v6.14-1 2025-01-24 08:03:52 -08:00
base PM: sleep: core: Restrict power.set_active propagation 2025-02-09 14:41:48 +01:00
bcma
block block-6.14-20250207 2025-02-07 11:00:33 -08:00
bluetooth Bluetooth: btintel_pcie: Fix a potential race condition 2025-02-13 11:14:04 -05:00
bus genirq: Remove leading space from irq_chip::irq_print_chip() callbacks 2025-02-07 08:56:01 +01:00
cache
cdrom treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
cdx cdx: disable cdx bus from bus shutdown callback 2025-01-10 15:43:16 +01:00
char treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
clk The various patchsets are summarized below. Plus of course many 2025-01-26 18:36:23 -08:00
clocksource hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h 2025-01-10 00:54:21 +00:00
comedi
connector
counter
cpufreq amd-pstate fixes 2/6/25 2025-02-06 20:39:43 +01:00
cpuidle More power management updates for 6.14-rc1 2025-01-30 15:10:34 -08:00
crypto Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
cxl cxl changes for v6.14 2025-01-29 11:23:22 -08:00
dax
dca
devfreq Update devfreq next for v6.14 2025-01-13 20:48:34 +01:00
dio
dma dmaengine updates for v6.14 2025-01-29 14:29:57 -08:00
dma-buf
dpll
edac - The first part of a restructuring of AMD's representation of a northbridge 2025-01-21 09:38:52 -08:00
eisa
extcon Update extcon next for v6.14 2025-01-12 13:44:27 +01:00
firewire Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
firmware * Kconfig and IPv6 minor fixes. 2025-02-07 11:05:50 -08:00
fpga FPGA Manager changes for 6.14-rc1 2025-01-09 10:56:57 +01:00
fsi
gnss
gpio gpio: GPIO_GRGPIO should depend on OF 2025-02-05 14:37:53 +01:00
gpu - Fix the build error with clamp after WARN_ON on gcc 13.x+ (Guenter) 2025-02-07 15:42:21 +10:00
greybus
hid hid-for-linus-2025021001 2025-02-10 09:50:01 -08:00
hsi
hte
hv treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
hwmon Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
hwspinlock
hwtracing KVM/arm64 updates for 6.14 2025-01-28 09:01:36 -08:00
i2c Revert "i2c: Replace list-based mechanism for handling auto-detected clients" 2025-02-05 14:22:12 +01:00
i3c I3C for 6.14 2025-01-24 15:48:01 -08:00
idle Power management updates for 6.14-rc1 2025-01-22 11:16:14 -08:00
iio IIO: 2nd set of fixes for the 6.13 cycle. 2025-01-16 13:46:08 +01:00
infiniband Mainly individually changelogged singleton patches. The patch series in 2025-01-26 17:50:53 -08:00
input platform-drivers-x86 for v6.14-1 2025-01-24 07:18:39 -08:00
interconnect interconnect changes for 6.14 2025-01-16 14:01:40 +01:00
iommu hyperv-next for v6.14 2025-01-25 09:22:55 -08:00
ipack
irqchip genirq: Remove leading space from irq_chip::irq_print_chip() callbacks 2025-02-07 08:56:01 +01:00
isdn
leds Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
macintosh The various patchsets are summarized below. Plus of course many 2025-01-26 18:36:23 -08:00
mailbox mailbox: th1520: Fix memory corruption due to incorrect array size 2025-01-18 16:20:55 -06:00
mcb
md block-6.14-20250207 2025-02-07 11:00:33 -08:00
media [GIT PULL for v6.14] media updates 2025-02-01 09:15:01 -08:00
memory spi: Support DTR in spi-mem 2025-01-15 19:07:39 +01:00
memstick Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
message Merge branch '6.13/scsi-fixes' into 6.14/scsi-staging 2025-01-10 15:20:30 -05:00
mfd mfd: syscon: Restore device_node_to_regmap() for non-syscon nodes 2025-02-11 14:53:39 +00:00
misc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
mmc MMC core: 2025-01-22 10:39:17 -08:00
most
mtd block-6.14-20250131 2025-01-31 11:49:30 -08:00
mux mux: constify mux class 2025-01-10 10:15:04 +01:00
net net: wwan: mhi_wwan_mbim: Silence sequence number glitch errors 2025-02-14 13:39:55 -08:00
nfc nfc: mrvl: Don't use "proxy" headers 2025-01-18 17:10:05 -08:00
ntb PCI: Remove devres from pci_intx() 2025-01-18 14:38:49 -06:00
nubus
nvdimm
nvme nvme fixes for Linux 6.14 2025-02-03 09:19:03 -07:00
nvmem nvmem: core: improve range check for nvmem_cell_write() 2025-01-10 16:16:48 +01:00
of Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
opp Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
parisc
parport
pci PCI/TPH: Restore TPH Requester Enable correctly 2025-02-06 10:30:11 -06:00
pcmcia
peci
perf treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
phy phy-for-6.14 2025-01-29 14:32:38 -08:00
pinctrl pinctrl: pinconf-generic: Print unsigned value if a format is registered 2025-02-06 10:13:15 +01:00
platform platform/x86: thinkpad_acpi: Fix registration of tpacpi platform driver 2025-02-12 13:49:37 +02:00
pmdomain pmdomain: airoha: Fix compilation error with Clang-20 and Thumb2 mode 2025-01-21 10:45:24 +01:00
pnp
power power supply and reset changes for the 6.14 series 2025-01-27 15:37:16 -08:00
powercap Merge branch 'pm-powercap' 2025-02-07 12:43:58 +01:00
pps pps: clients: gpio: Bypass edge's direction check when not needed 2025-01-10 16:12:33 +01:00
ps3
ptp ptp: vmclock: Remove goto-based cleanup logic 2025-02-11 10:20:52 +01:00
pwm Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
rapidio
ras x86/amd_nb: Move SMN access code to a new amd_node driver 2025-01-08 10:59:44 +01:00
regulator regulator: Fixes for v6.14 2025-01-29 11:56:55 -08:00
remoteproc remoteproc: st: Use syscon_regmap_lookup_by_phandle_args 2025-01-15 10:04:27 -07:00
reset soc: driver updates for 6.14 2025-01-24 14:56:59 -08:00
rpmsg
rtc RTC for 6.13 2025-01-30 17:50:02 -08:00
s390 s390/qeth: move netif_napi_add_tx() and napi_enable() from under BH 2025-02-13 08:39:57 -08:00
sbus
scsi scsi: qla1280: Fix kernel oops when debug level > 2 2025-02-03 17:54:56 -05:00
sh
siox
slimbus Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
soc genirq: Remove leading space from irq_chip::irq_print_chip() callbacks 2025-02-07 08:56:01 +01:00
soundwire soundwire updates for 6.14 2025-01-29 14:38:19 -08:00
spi spi: Fix for v6.14 2025-01-24 16:12:12 -08:00
spmi spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe() 2025-01-17 12:58:49 +01:00
ssb
staging Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
target Merge branch '6.14/scsi-queue' into 6.14/scsi-fixes 2025-02-03 16:28:51 -05:00
tc
tee
thermal Merge branch 'thermal-intel' 2025-01-20 13:10:15 +01:00
thunderbolt Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
tty fsnotify: use accessor to set FMODE_NONOTIFY_* 2025-02-07 10:27:26 +01:00
ufs scsi: ufs: core: Fix error return with query response 2025-02-03 17:34:24 -05:00
uio Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
usb Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
vdpa virtio: features, fixes, cleanups 2025-01-27 15:26:06 -08:00
vfio VFIO updates for v6.14-rc1 2025-01-28 14:16:46 -08:00
vhost vhost/net: Set num_buffers for virtio 1.0 2025-01-27 09:39:25 -05:00
video fbdev fixes and updates for 6.14-rc1: 2025-01-24 11:32:13 -08:00
virt - A segmented Reverse Map table (RMP) is a across-nodes distributed 2025-01-21 09:00:31 -08:00
virtio virtio: features, fixes, cleanups 2025-01-27 15:26:06 -08:00
w1 1-Wire bus drivers for v6.14 2025-01-09 10:54:19 +01:00
watchdog linux-watchdog 6.14-rc1 tag 2025-01-25 16:19:10 -08:00
xen xen: branch for v6.14-rc1 2025-01-29 11:39:20 -08:00
zorro zorro: Constify 'struct bin_attribute' 2025-01-08 18:04:36 +01:00
Kconfig
Makefile