Thomas Gleixner
ec25d05e18
PCI/MSI: Protect msi_desc::masked for multi-MSI ...
commit 77e89afc25f30abd56e76a809ee2884d7c1b63ce upstream.
Multi-MSI uses a single MSI descriptor and there is a single mask register
when the device supports per vector masking. To avoid reading back the mask
register the value is cached in the MSI descriptor and updates are done by
clearing and setting bits in the cache and writing it to the device.
But nothing protects msi_desc::masked and the mask register from being
modified concurrently on two different CPUs for two different Linux
interrupts which belong to the same multi-MSI descriptor.
Add a lock to struct device and protect any operation on the mask and the
mask register with it.
This makes the update of msi_desc::masked unconditional, but there is no
place which requires a modification of the hardware register without
updating the masked cache.
msi_mask_irq() is now an empty wrapper which will be cleaned up in follow
up changes.
The problem goes way back to the initial support of multi-MSI, but picking
the commit which introduced the mask cache is a valid cut off point
(2.6.30).
Fixes: f2440d9acbstable@vger.kernel.org
Link: https://lore.kernel.org/r/20210729222542.726833414@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18 08:57:03 +02:00
ACPI: NFIT: Fix support for virtual SPA ranges
2021-08-18 08:56:57 +02:00
libata: fix ata_pio_sector for CONFIG_HIGHMEM
2021-08-12 13:21:04 +02:00
atm: nicstar: register the interrupt handler in the right place
2021-07-19 08:53:12 +02:00
PCI/MSI: Protect msi_desc::masked for multi-MSI
2021-08-18 08:57:03 +02:00
nbd: Aovid double completion of a request
2021-08-18 08:57:01 +02:00
Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.
2021-07-19 08:53:13 +02:00
bus: ti-sysc: Fix flakey idling of uarts and stop using swsup_sidle_act
2021-06-10 13:37:08 +02:00
cdrom: gdrom: initialize global variable at init time
2021-05-26 12:05:19 +02:00
tpm_ftpm_tee: Free and unregister TEE shared memory during kexec
2021-08-12 13:21:01 +02:00
clk: fix leak on devm_clk_bulk_get_all() unwind
2021-08-12 13:21:00 +02:00
clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround
2021-07-19 08:53:15 +02:00
cpufreq: Make cpufreq_online() call driver->offline() on errors
2021-07-14 16:53:25 +02:00
crypto: ccp - Annotate SEV Firmware file names
2021-07-19 08:53:14 +02:00
PM / devfreq: Use more accurate returned new_freq as resume_freq
2021-05-14 09:44:20 +02:00
dmaengine: imx-dma: configure the generic DMA type to make it work
2021-08-12 13:20:56 +02:00
dma-buf/sync_file: Don't leak fences on merge failure
2021-07-25 14:35:15 +02:00
EDAC/Intel: Do not load EDAC driver when running as a guest
2021-07-14 16:53:18 +02:00
extcon: intel-mrfld: Sync hardware and software state on init
2021-07-19 08:53:16 +02:00
firmware: arm_scmi: Add delayed response status check
2021-08-08 09:04:08 +02:00
fpga: stratix10-soc: Add missing fpga_mgr_free() call
2021-07-19 08:53:15 +02:00
fsi/sbefifo: Fix reset timeout
2021-07-14 16:53:42 +02:00
gpio: tqmx86: really make IRQ optional
2021-08-12 13:20:57 +02:00
drm/meson: fix colour distortion from HDR set during vendor u-boot
2021-08-18 08:56:59 +02:00
HID: wacom: Re-enable touch by default for Cintiq 24HDT / 27QHDT
2021-08-04 12:27:38 +02:00
HSI: core: fix resource leaks in hsi_add_client_from_dt()
2021-05-14 09:44:25 +02:00
hv_utils: Fix passing zero to 'PTR_ERR' warning
2021-07-14 16:53:16 +02:00
hwmon: (max31790) Fix fan speed reporting for fan7..12
2021-07-14 16:53:23 +02:00
intel_th: Wait until port is in reset before programming it
2021-07-20 16:10:46 +02:00
i2c: dev: zero out array used for i2c reads from userspace
2021-08-18 08:56:56 +02:00
Revert "i3c master: fix missing destroy_workqueue() on error in i3c_master_register"
2021-05-14 09:44:15 +02:00
iio: adc: Fix incorrect exit of for-loop
2021-08-18 08:56:56 +02:00
RDMA/cma: Fix rdma_resolve_route() memory leak
2021-07-19 08:53:13 +02:00
Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
2021-07-20 16:10:45 +02:00
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
2021-07-20 16:10:44 +02:00
ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe
2021-07-19 08:53:17 +02:00
irqchip/gic-v3: Fix OF_BAD_ADDR error handling
2021-05-14 09:44:20 +02:00
mISDN: fix possible use-after-free in HFC_cleanup()
2021-07-19 08:53:08 +02:00
leds: ktd2692: Fix an error handling path
2021-07-14 16:53:47 +02:00
md/raid10: properly indicate failure when ending a failed write request
2021-08-12 13:21:03 +02:00
media: v4l2-mem2mem: always consider OUTPUT queue during poll
2021-08-15 13:08:02 +02:00
memory: fsl_ifc: fix leak of private memory on probe failure
2021-07-20 16:10:52 +02:00
memstick: rtsx_usb_ms: fix UAF
2021-07-14 16:53:13 +02:00
mfd: cpcap: Fix cpcap dmamask not set warnings
2021-07-20 16:10:43 +02:00
misc: alcor_pci: fix inverted branch condition
2021-07-20 16:10:53 +02:00
mmc: core: Allow UHS-I voltage switch for SDSC cards if supported
2021-07-19 08:53:15 +02:00
mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
2021-07-14 16:53:45 +02:00
net: dsa: sja1105: fix broken backpressure in .port_fdb_dump
2021-08-18 08:57:00 +02:00
nfc: nfcsim: fix use after free during module unload
2021-08-04 12:27:38 +02:00
libnvdimm/region: Fix label activation vs errors
2021-08-18 08:56:57 +02:00
nvme: fix nvme_setup_command metadata trace event
2021-08-08 09:04:08 +02:00
nvmem: core: add a missing of_node_put
2021-07-19 08:53:16 +02:00
of: Fix truncation of memory sizes on 32-bit platforms
2021-07-14 16:53:45 +02:00
PCI/MSI: Protect msi_desc::masked for multi-MSI
2021-08-18 08:57:03 +02:00
pcmcia: i82092: fix a null pointer dereference bug
2021-08-12 13:21:03 +02:00
drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
2021-07-14 16:53:14 +02:00
phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
2021-07-14 16:53:46 +02:00
pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
2021-07-19 08:53:18 +02:00
platform/x86: pcengines-apuv2: Add missing terminating entries to gpio-lookup tables
2021-08-18 08:56:58 +02:00
power: supply: rt5033_battery: Fix device tree enumeration
2021-07-20 16:10:49 +02:00
ptp: improve max_adj check against unreasonable values
2021-06-23 14:41:26 +02:00
pwm: sprd: Ensure configuring period and duty_cycle isn't wrongly skipped
2021-07-28 13:30:53 +02:00
rapidio: handle create_workqueue() failure
2021-05-26 12:05:17 +02:00
regulator: hi6421: Fix getting wrong drvdata
2021-07-28 13:30:55 +02:00
reset: ti-syscon: fix to_ti_syscon_reset_data macro
2021-07-25 14:35:10 +02:00
rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()
2021-05-19 10:08:25 +02:00
rtc: max77686: Do not enforce (incorrect) interrupt trigger type
2021-07-25 14:35:12 +02:00
s390/sclp_vt220: fix console name to match device
2021-07-20 16:10:43 +02:00
scsi: sr: Return correct event when media event code is 3
2021-08-12 13:20:56 +02:00
soc: ixp4xx/qmgr: fix invalid __iomem access
2021-08-12 13:21:04 +02:00
soundwire: stream: Fix test for DP prepare complete
2021-07-14 16:53:45 +02:00
spi: meson-spicc: fix memory leak in meson_spicc_remove
2021-08-12 13:21:04 +02:00
ssb: Fix error return code in ssb_bus_scan()
2021-07-14 16:53:29 +02:00
staging: rtl8712: get rid of flush_scheduled_work
2021-08-12 13:21:01 +02:00
scsi: target: Fix protect handling in WRITE SAME(32)
2021-07-28 13:30:56 +02:00
tee: Correct inappropriate usage of TEE_SHM_DMA_BUF flag
2021-08-15 13:08:02 +02:00
thermal/core: Correct function name thermal_zone_device_unregister()
2021-07-25 14:35:12 +02:00
thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue
2021-06-03 08:59:03 +02:00
serial: 8250_pci: Avoid irq sharing for MSI(-X) interrupts.
2021-08-12 13:21:03 +02:00
uio_hv_generic: Fix a memory leak in error handling paths
2021-05-26 12:05:17 +02:00
USB:ehci:fix Kunpeng920 ehci hardware problem
2021-08-15 13:08:04 +02:00
vfio/pci: Handle concurrent vma faults
2021-07-14 16:53:47 +02:00
backlight: lm3630a: Fix return code of .update_status() callback
2021-07-20 16:10:45 +02:00
visorbus: fix error return code in visorchipset_init()
2021-07-14 16:53:42 +02:00
w1: ds2438: fixing bug that would always get page0
2021-07-20 16:10:41 +02:00
Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout"
2021-08-08 09:04:08 +02:00
xen/events: Fix race in set_evtchn_to_irq
2021-08-18 08:57:01 +02:00
ec25d05e18