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117ccba028
linux/drivers
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Mark Brown 117ccba028 regmap: Ensure range selector registers are updated after cache sync 
commit 0ec7731655 upstream.

When we sync the register cache we do so with the cache bypassed in order
to avoid overhead from writing the synced values back into the cache. If
the regmap has ranges and the selector register for those ranges is in a
register which is cached this has the unfortunate side effect of meaning
that the physical and cached copies of the selector register can be out of
sync after a cache sync. The cache will have whatever the selector was when
the sync started and the hardware will have the selector for the register
that was synced last.

Fix this by rewriting all cached selector registers after every sync,
ensuring that the hardware and cache have the same content. This will
result in extra writes that wouldn't otherwise be needed but is simple
so hopefully robust. We don't read from the hardware since not all
devices have physical read support.

Given that nobody noticed this until now it is likely that we are rarely if
ever hitting this case.

Reported-by: Hector Martin <marcan@marcan.st>
Cc: stable@vger.kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20231026-regmap-fix-selector-sync-v1-1-633ded82770d@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 17:15:02 +00:00
..
accel accel/habanalabs/gaudi2: Fix incorrect string length computation in gaudi2_psoc_razwi_get_engines() 2023-11-20 11:57:01 +01:00
accessibility
acpi ACPI: resource: Do IRQ override on TongFang GMxXGxx 2023-11-28 17:15:02 +00:00
amba amba: bus: fix refcount leak 2023-09-13 09:53:44 +02:00
android binder: fix memory leaks of spam and pending work 2023-10-19 23:11:04 +02:00
ata ata: pata_parport: fit3: implement IDE command set registers 2023-11-08 14:08:57 +01:00
atm atm: iphase: Do PCI error checks on own line 2023-11-28 17:14:48 +00:00
auxdisplay
base regmap: Ensure range selector registers are updated after cache sync 2023-11-28 17:15:02 +00:00
bcma
block virtio-blk: fix implicit overflow on virtio_max_dma_size 2023-11-28 17:14:50 +00:00
bluetooth Bluetooth: btusb: Add date->evt_skb is NULL check 2023-11-28 17:14:43 +00:00
bus bus: ti-sysc: Fix SYSC_QUIRK_SWSUP_SIDLE_ACT handling for uart wake-up 2023-10-06 13:16:03 +02:00
cdrom
cdx
char hwrng: geode - fix accessing registers 2023-11-20 11:57:07 +01:00
clk clk: scmi: Free scmi_clk allocated when the clocks with invalid info are skipped 2023-11-20 11:57:05 +01:00
clocksource clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware 2023-11-28 17:14:41 +00:00
comedi Revert "comedi: add HAS_IOPORT dependencies" 2023-09-23 11:14:37 +02:00
connector
counter counter: microchip-tcb-capture: Fix the use of internal GCLK logic 2023-10-19 23:11:07 +02:00
cpufreq cpufreq: tegra194: fix warning due to missing opp_put 2023-11-20 11:56:48 +01:00
cpuidle powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT 2023-09-13 09:53:32 +02:00
crypto crypto: hisilicon/qm - prevent soft lockup in receive loop 2023-11-28 17:14:49 +00:00
cxl cxl/hdm: Remove broken error path 2023-11-20 11:57:19 +01:00
dax
dca
devfreq PM / devfreq: rockchip-dfi: Make pmu regmap mandatory 2023-11-20 11:56:51 +01:00
dio
dma dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() 2023-11-20 11:57:14 +01:00
dma-buf dma-buf: add dma_fence_timestamp helper 2023-10-19 23:11:07 +02:00
edac EDAC/igen6: Fix the issue of no error events 2023-09-13 09:53:29 +02:00
eisa
extcon extcon: cht_wc: add POWER_SUPPLY dependency 2023-09-13 09:53:38 +02:00
firewire scsi: sd: Introduce manage_shutdown device flag 2023-11-02 09:36:55 +01:00
firmware firmware: tegra: Add suspend hook and reset BPMP IPC early on resume 2023-11-20 11:57:06 +01:00
fpga
fsi fsi: aspeed: Reset master errors after CFAM reset 2023-09-13 09:53:40 +02:00
gnss
gpio gpiolib: of: Add quirk for mt2701-cs42448 ASoC sound 2023-11-28 17:14:47 +00:00
gpu i915/perf: Fix NULL deref bugs with drm_dbg() calls 2023-11-28 17:14:58 +00:00
greybus
hid HID: Add quirk for Dell Pro Wireless Keyboard and Mouse KM5221W 2023-11-28 17:14:49 +00:00
hsi
hte hte: tegra: Fix missing error code in tegra_hte_test_probe() 2023-11-20 11:56:58 +01:00
hv Drivers: hv: vmbus: Don't dereference ACPI root object handle 2023-09-13 09:53:48 +02:00
hwmon hwmon: (sch5627) Disallow write access if virtual registers are locked 2023-11-20 11:56:58 +01:00
hwspinlock hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation 2023-09-19 12:30:23 +02:00
hwtracing coresight: tmc-etr: Disable warnings for allocation failures 2023-11-08 14:08:55 +01:00
i2c i2c: dev: copy userspace array safely 2023-11-28 17:14:51 +00:00
i3c i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data. 2023-11-28 17:14:50 +00:00
idle
iio iio: adc: stm32-adc: harden against NULL pointer deref in stm32_adc_probe() 2023-11-28 17:14:49 +00:00
infiniband RDMA/hfi1: Use FIELD_GET() to extract Link Width 2023-11-28 17:14:47 +00:00
input Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() 2023-11-20 11:57:21 +01:00
interconnect interconnect: fix error handling in qnoc_probe() 2023-11-20 11:57:16 +01:00
iommu iommufd: Fix missing update of domains_itree after splitting iopt_area 2023-11-28 17:15:01 +00:00
ipack
irqchip irqchip/sifive-plic: Fix syscore registration for multi-socket systems 2023-11-20 11:56:45 +01:00
isdn mISDN: Update parameter type of dsp_cmx_send() 2023-08-03 18:08:32 -07:00
leds leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu' 2023-11-20 11:57:12 +01:00
macintosh
mailbox mailbox: qcom-ipcc: fix incorrect num_chans counting 2023-09-19 12:30:13 +02:00
mcb mcb: remove is_added flag from mcb_device struct 2023-10-19 23:11:05 +02:00
md dm crypt: account large pages in cc->n_allocated_pages 2023-11-28 17:15:01 +00:00
media media: venus: hfi: add checks to perform sanity on queue pointers 2023-11-28 17:14:58 +00:00
memory memory: tegra: Set BPMP msg flags to reset IPC channels 2023-11-20 11:57:06 +01:00
memstick
message
mfd mfd: intel-lpss: Add Intel Lunar Lake-M PCI IDs 2023-11-28 17:14:49 +00:00
misc misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller 2023-11-28 17:14:48 +00:00
mmc mmc: sdhci-pci-gli: GL9755: Mask the replay timer timeout of AER 2023-11-28 17:15:00 +00:00
most
mtd mtd: rawnand: meson: check return value of devm_kasprintf() 2023-11-28 17:14:52 +00:00
mux
net macvlan: Don't propagate promisc change to lower dev in passthru 2023-11-28 17:14:57 +00:00
nfc
ntb ntb: Fix calculation ntb_transport_tx_free_entry() 2023-09-13 09:53:53 +02:00
nubus
nvdimm nd_btt: Make BTT lanes preemptible 2023-11-20 11:57:08 +01:00
nvme nvme: fix error-handling for io_uring nvme-passthrough 2023-11-20 11:57:23 +01:00
nvmem nvmem: imx: correct nregs for i.MX6UL 2023-11-02 09:36:58 +01:00
of of: address: Fix address translation when address-size is greater than 2 2023-11-28 17:14:43 +00:00
opp OPP: Fix passing 0 to PTR_ERR in _opp_attach_genpd() 2023-09-13 09:52:59 +02:00
parisc parisc: iosapic.c: Fix sparse warnings 2023-10-06 13:16:08 +02:00
parport parport: gsc: remove DMA leftover code 2023-08-03 14:40:37 +02:00
pci PCI/sysfs: Protect driver's D3cold preference from user space 2023-11-28 17:15:00 +00:00
pcmcia pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() 2023-11-20 11:57:19 +01:00
peci
perf drivers: perf: Check find_first_bit() return value 2023-11-28 17:14:58 +00:00
phy phy: qualcomm: phy-qcom-eusb2-repeater: Zero out untouched tuning regs 2023-11-28 17:14:49 +00:00
pinctrl pinctrl: renesas: rzg2l: Make reverse order of enable() for disable() 2023-11-20 11:57:13 +01:00
platform platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e 2023-11-28 17:14:43 +00:00
pnp
power power: supply: core: Use blocking_notifier_call_chain to avoid RCU complaint 2023-11-08 14:09:04 +01:00
powercap powercap: intel_rapl: Fix invalid setting of Power Limit 4 2023-09-13 09:53:52 +02:00
pps
ps3
ptp ptp: annotate data-race around q->head and q->tail 2023-11-28 17:14:55 +00:00
pwm pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume 2023-11-20 11:57:21 +01:00
rapidio
ras
regulator regulator: qcom-rpmh: Fix smps4 regulator for pm8550ve 2023-11-20 11:56:57 +01:00
remoteproc remoteproc: stm32: fix incorrect optional pointers 2023-09-13 09:53:48 +02:00
reset
rpmsg rpmsg: glink: Add check for kstrdup 2023-09-13 09:53:46 +02:00
rtc rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call 2023-11-20 11:57:18 +01:00
s390 s390/ap: re-init AP queues on config on 2023-11-20 11:57:16 +01:00
sbus
scsi scsi: qla2xxx: Fix system crash due to bad pointer access 2023-11-28 17:14:59 +00:00
sh
siox
slimbus
soc soc: qcom: pmic_glink: fix connector type to be DisplayPort 2023-11-20 11:57:06 +01:00
soundwire soundwire: dmi-quirks: update HP Omen match 2023-11-28 17:14:49 +00:00
spi spi: spi-zynq-qspi: add spi-mem to driver kconfig dependencies 2023-11-20 11:57:25 +01:00
spmi
ssb
staging media: cedrus: Fix clock/reset sequence 2023-11-20 11:57:20 +01:00
target scsi: target: core: Fix deadlock due to recursive locking 2023-10-10 22:03:00 +02:00
tc
tee tee: amdtee: fix use-after-free vulnerability in amdtee_close_session 2023-10-19 23:11:06 +02:00
thermal thermal: core: Don't update trip points inside the hysteresis range 2023-11-20 11:56:52 +01:00
thunderbolt thunderbolt: Apply USB 3.x bandwidth quirk only in software connection manager 2023-11-28 17:14:49 +00:00
tty hvc/xen: fix event channel handling for secondary consoles 2023-11-28 17:15:00 +00:00
ufs scsi: ufs: core: Fix racing issue between ufshcd_mcq_abort() and ISR 2023-11-28 17:14:59 +00:00
uio
usb usb: gadget: f_ncm: Always set current gadget in ncm_bind() 2023-11-28 17:14:50 +00:00
vdpa vdpa_sim_blk: allocate the buffer zeroed 2023-11-28 17:14:53 +00:00
vfio vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent() 2023-10-06 13:16:01 +02:00
vhost vhost-vdpa: fix use after free in vhost_vdpa_probe() 2023-11-28 17:14:53 +00:00
video fbdev: fsl-diu-fb: mark wr_reg_wa() static 2023-11-20 11:57:25 +01:00
virt virt: sevguest: Fix passing a stack buffer as a scatterlist target 2023-11-20 11:57:18 +01:00
virtio virtio_pci: fix the common cfg map size 2023-11-02 09:36:46 +01:00
vlynq
w1
watchdog watchdog: ixp4xx: Make sure restart always works 2023-11-20 11:57:21 +01:00
xen xen/events: fix delayed eoi list handling 2023-11-28 17:14:55 +00:00
zorro
Kconfig
Makefile