Wayne Lin 4ecba33ec8 drm/dp_mst: Remove VCPI while disabling topology mgr ... [ Upstream commit 64e62bdf04 ] [Why] This patch is trying to address the issue observed when hotplug DP daisy chain monitors. e.g. src-mstb-mstb-sst -> src (unplug) mstb-mstb-sst -> src-mstb-mstb-sst (plug in again) Once unplug a DP MST capable device, driver will call drm_dp_mst_topology_mgr_set_mst() to disable MST. In this function, it cleans data of topology manager while disabling mst_state. However, it doesn't clean up the proposed_vcpis of topology manager. If proposed_vcpi is not reset, once plug in MST daisy chain monitors later, code will fail at checking port validation while trying to allocate payloads. When MST capable device is plugged in again and try to allocate payloads by calling drm_dp_update_payload_part1(), this function will iterate over all proposed virtual channels to see if any proposed VCPI's num_slots is greater than 0. If any proposed VCPI's num_slots is greater than 0 and the port which the specific virtual channel directed to is not in the topology, code then fails at the port validation. Since there are stale VCPI allocations from the previous topology enablement in proposed_vcpi[], code will fail at port validation and reurn EINVAL. [How] Clean up the data of stale proposed_vcpi[] and reset mgr->proposed_vcpis to NULL while disabling mst in drm_dp_mst_topology_mgr_set_mst(). Changes since v1: *Add on more details in commit message to describe the issue which the patch is trying to fix Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> [added cc to stable] Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191205090043.7580-1-Wayne.Lin@amd.com Cc: <stable@vger.kernel.org> # v3.17+ Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-11 04:34:16 -08:00
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accessibility
acpi	ACPI / battery: Deal better with neither design nor full capacity not being reported	2020-02-11 04:33:59 -08:00
amba
android	binder: Handle start==NULL in binder_update_page_range()	2019-12-13 08:52:52 +01:00
ata	ahci: Do not export local variable ahci_em_messages	2020-01-27 14:51:07 +01:00
atm	atm: eni: fix uninitialized variable warning	2020-02-01 09:37:09 +00:00
auxdisplay	auxdisplay: panel: need to delete scan_timer when misc_register fails in panel_attach	2019-09-06 10:21:56 +02:00
base	PM: core: Fix handling of devices deleted during system-wide resume	2020-02-11 04:34:03 -08:00
bcma	bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA	2020-01-27 14:51:09 +01:00
block	signal: Allow cifs and drbd to receive their terminating signals	2020-01-27 14:51:05 +01:00
bluetooth	Bluetooth: btusb: fix PM leak in error case of setup	2020-01-09 10:19:04 +01:00
bus	bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated	2020-01-27 14:50:36 +01:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:13:12 +01:00
char	ttyprintk: fix a potential deadlock in interrupt context issue	2020-02-05 14:43:39 +00:00
clk	clk: tegra: Mark fuse clock as critical	2020-02-11 04:34:11 -08:00
clocksource	clocksource/drivers/exynos_mct: Fix error path in timer resources initialization	2020-01-27 14:50:27 +01:00
connector
cpufreq	cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency	2020-01-27 14:50:53 +01:00
cpuidle	cpuidle: Do not unset the driver if it is there already	2019-12-17 20:35:00 +01:00
crypto	crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill	2020-02-11 04:34:05 -08:00
dax
dca
devfreq	PM / devfreq: Add new name attribute for sysfs	2020-02-05 14:43:34 +00:00
dio
dma	dmaengine: ti: edma: fix missed failure handling	2020-01-27 14:51:22 +01:00
dma-buf	dma-buf: Fix memory leak in sync_file_merge()	2019-12-21 10:57:38 +01:00
edac	EDAC/mc: Fix edac_mc_find() in case no device is found	2020-01-27 14:50:48 +01:00
eisa
extcon	extcon: sm5502: Reset registers during initialization	2019-12-31 16:35:11 +01:00
firewire	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:19:09 +01:00
firmware	firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices	2020-01-27 14:51:19 +01:00
fmc
fpga	fpga: altera-ps-spi: Fix getting of optional confd gpio	2019-09-21 07:16:53 +02:00
fsi	fsi: sbefifo: Don't fail operations when in SBE IPL state	2020-01-27 14:51:00 +01:00
gnss
gpio	gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP	2020-02-01 09:37:09 +00:00
gpu	drm/dp_mst: Remove VCPI while disabling topology mgr	2020-02-11 04:34:16 -08:00
hid	HID: steam: Fix input device disappearing	2020-02-01 09:37:09 +00:00
hsi
hv	hv_balloon: Balloon up according to request page number	2020-02-11 04:34:01 -08:00
hwmon	hwmon: (nct7802) Fix voltage limits to wrong registers	2020-01-29 16:43:21 +01:00
hwspinlock
hwtracing	coresight: tmc-etf: Do not call smp_processor_id from preemptible	2020-01-29 16:43:23 +01:00
i2c	i2c: stm32f7: report dma error during probe	2020-01-27 14:51:21 +01:00
ide
idle
iio	iio: st_gyro: Correct data for LSM9DS0 gyro	2020-02-01 09:37:04 +00:00
infiniband	IB/core: Fix ODP get user pages flow	2020-02-11 04:34:13 -08:00
input	Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register	2020-01-29 16:43:20 +01:00
iommu	iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping	2020-02-01 09:37:10 +00:00
ipack
irqchip	irqchip: Place CONFIG_SIFIVE_PLIC into the menu	2020-01-23 08:21:36 +01:00
isdn	staging: gigaset: add endpoint-type sanity check	2019-12-17 20:34:33 +01:00
leds	led: triggers: Fix dereferencing of null pointer	2020-01-27 14:51:10 +01:00
lightnvm	lightnvm: pblk: fix lock order in pblk_rb_tear_down_check	2020-01-27 14:50:45 +01:00
macintosh	macintosh/windfarm_smu_sat: Fix debug output	2019-12-01 09:16:37 +01:00
mailbox	mailbox: qcom-apcs: fix max_register value	2020-01-27 14:51:14 +01:00
mcb
md	bcache: add readahead cache policy options via sysfs interface	2020-02-11 04:34:08 -08:00
media	media: rc: ensure lirc is initialized before registering input device	2020-02-11 04:34:08 -08:00
memory	memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20	2020-01-27 14:50:13 +01:00
memstick	memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'	2019-10-29 09:20:07 +01:00
message	scsi: mptfusion: Fix double fetch bug in ioctl	2020-01-23 08:21:28 +01:00
mfd	mfd: rn5t618: Mark ADC control register volatile	2020-02-11 04:34:14 -08:00
misc	mei: me: add comet point (lake) H device ids	2020-02-01 09:37:04 +00:00
mmc	mmc: sdhci-of-at91: fix memleak on clk_get failure	2020-02-11 04:34:00 -08:00
mtd	ubi: Fix an error pointer dereference in error handling code	2020-02-11 04:34:14 -08:00
mux
net	net: dsa: b53: Always use dev->vlan_enabled in b53_configure_vlan()	2020-02-11 04:34:16 -08:00
nfc	NFC: pn544: Adjust indentation in pn544_hci_check_presence	2020-02-11 04:34:12 -08:00
ntb	ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()	2020-01-27 14:50:55 +01:00
nubus
nvdimm	libnvdimm/btt: fix variable 'rc' set but not used	2020-01-04 19:13:00 +01:00
nvme	nvme: retain split access workaround for capability reads	2020-01-27 14:51:16 +01:00
nvmem	nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm	2020-01-27 14:50:58 +01:00
of	of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc	2020-02-11 04:34:03 -08:00
opp	OPP: Fix missing debugfs supply directory for OPPs	2020-01-27 14:50:04 +01:00
oprofile
parisc	parisc: Disable HP HSC-PCI Cards to prevent kernel crash	2019-10-05 13:10:04 +02:00
parport	parport: load lowlevel driver if ports not found	2019-12-31 16:36:01 +01:00
pci	PCI: keystone: Fix link training retries initiation	2020-02-11 04:34:00 -08:00
pcmcia
perf	drivers/perf: arm_pmu: Fix failure path in PM notifier	2019-08-06 19:06:55 +02:00
phy	phy: qualcomm: Adjust indentation in read_poll_timeout	2020-02-11 04:34:12 -08:00
pinctrl	pinctrl: iproc-gpio: Fix incorrect pinconf configurations	2020-01-27 14:51:12 +01:00
platform	platform/x86: intel_scu_ipc: Fix interrupt support	2020-02-11 04:33:57 -08:00
pnp
power	power: supply: ltc2941-battery-gauge: fix use-after-free	2020-02-11 04:34:02 -08:00
powercap
pps	drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl	2019-08-04 09:30:56 +02:00
ps3
ptp	ptp: free ptp device pin descriptors properly	2020-01-23 08:21:35 +01:00
pwm	pwm: meson: Don't disable PWM when setting duty repeatedly	2020-01-27 14:50:47 +01:00
rapidio	drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()	2020-01-27 14:50:31 +01:00
ras	RAS/CEC: Fix pfn insertion	2019-07-26 09:14:05 +02:00
regulator	regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB	2020-01-27 14:50:33 +01:00
remoteproc	remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996	2020-01-27 14:50:10 +01:00
reset	reset: Fix memory leak in reset_control_array_put()	2019-12-05 09:19:36 +01:00
rpmsg	rpmsg: glink: Free pending deferred work on remove	2019-12-21 10:57:30 +01:00
rtc	rtc: pcf2127: bugfix: read rtc disables watchdog	2020-01-27 14:51:07 +01:00
s390	s390/qeth: Fix initialization of vnicc cmd masks during set online	2020-01-27 14:51:18 +01:00
sbus
scsi	scsi: ufs: Recheck bkops level if bkops is disabled	2020-02-11 04:34:12 -08:00
sfi
sh
siox
slimbus	slimbus: ngd: Fix build error on x86	2019-12-13 08:51:54 +01:00
sn
soc	soc: ti: wkup_m3_ipc: Fix race condition with rproc_boot	2020-02-05 14:43:41 +00:00
soundwire	soundwire: intel: fix PDI/stream mapping for Bulk	2019-12-31 16:35:55 +01:00
spi	spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls	2020-02-01 09:37:08 +00:00
spmi
ssb
staging	staging: vt6656: Fix false Tx excessive retries reporting.	2020-02-01 09:37:03 +00:00
target	scsi: RDMA/isert: Fix a recently introduced regression related to logout	2020-01-29 16:43:21 +01:00
tc
tee	tee: optee: Fix compilation issue with nommu	2020-02-05 14:43:50 +00:00
thermal	thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power	2020-01-27 14:50:48 +01:00
thunderbolt	thunderbolt: Power cycle the router if NVM authentication fails	2019-12-05 09:21:27 +01:00
tty	serial: 8250_bcm2835aux: Fix line mismatch on driver unbind	2020-02-01 09:37:03 +00:00
uio	driver: uio: fix possible use-after-free in __uio_register_device	2020-01-27 14:50:17 +01:00
usb	usb: gadget: f_ecm: Use atomic_t to track in-flight request	2020-02-11 04:33:56 -08:00
uwb
vfio	vfio/mdev: Fix aborting mdev child device removal if one fails	2020-01-27 14:50:46 +01:00
vhost	vhost/test: stop device before reset	2020-01-27 14:51:19 +01:00
video	backlight: pwm_bl: Fix heuristic to determine number of brightness levels	2020-01-27 14:50:58 +01:00
virt	virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr	2019-11-06 13:06:04 +01:00
virtio	virtio-balloon: fix managed page counts when migrating pages between zones	2019-12-17 20:34:43 +01:00
visorbus
vlynq
vme
w1	w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size).	2019-12-01 09:16:22 +01:00
watchdog	watchdog: fix UAF in reboot notifier handling in watchdog core code	2020-02-11 04:34:08 -08:00
xen	xen/balloon: Support xend-based toolstack take two	2020-02-11 04:34:08 -08:00
zorro
Kconfig
Makefile