Wayne Lin
4ecba33ec8
drm/dp_mst: Remove VCPI while disabling topology mgr ...
[ Upstream commit 64e62bdf04ab8529f45ed0a85122c703035dec3a ]
[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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binder: Handle start==NULL in binder_update_page_range()
2019-12-13 08:52:52 +01:00
ahci: Do not export local variable ahci_em_messages
2020-01-27 14:51:07 +01:00
atm: eni: fix uninitialized variable warning
2020-02-01 09:37:09 +00:00
PM: core: Fix handling of devices deleted during system-wide resume
2020-02-11 04:34:03 -08:00
bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
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signal: Allow cifs and drbd to receive their terminating signals
2020-01-27 14:51:05 +01:00
Bluetooth: btusb: fix PM leak in error case of setup
2020-01-09 10:19:04 +01:00
bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated
2020-01-27 14:50:36 +01:00
cdrom: respect device capabilities during opening action
2020-01-04 19:13:12 +01:00
ttyprintk: fix a potential deadlock in interrupt context issue
2020-02-05 14:43:39 +00:00
clk: tegra: Mark fuse clock as critical
2020-02-11 04:34:11 -08:00
clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
2020-01-27 14:50:27 +01:00
cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency
2020-01-27 14:50:53 +01:00
cpuidle: Do not unset the driver if it is there already
2019-12-17 20:35:00 +01:00
crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
2020-02-11 04:34:05 -08:00
PM / devfreq: Add new name attribute for sysfs
2020-02-05 14:43:34 +00:00
dmaengine: ti: edma: fix missed failure handling
2020-01-27 14:51:22 +01:00
dma-buf: Fix memory leak in sync_file_merge()
2019-12-21 10:57:38 +01:00
EDAC/mc: Fix edac_mc_find() in case no device is found
2020-01-27 14:50:48 +01:00
extcon: sm5502: Reset registers during initialization
2019-12-31 16:35:11 +01:00
net: add annotations on hh->hh_len lockless accesses
2020-01-09 10:19:09 +01:00
firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices
2020-01-27 14:51:19 +01:00
fpga: altera-ps-spi: Fix getting of optional confd gpio
2019-09-21 07:16:53 +02:00
fsi: sbefifo: Don't fail operations when in SBE IPL state
2020-01-27 14:51:00 +01:00
gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
2020-02-01 09:37:09 +00:00
drm/dp_mst: Remove VCPI while disabling topology mgr
2020-02-11 04:34:16 -08:00
HID: steam: Fix input device disappearing
2020-02-01 09:37:09 +00:00
hv_balloon: Balloon up according to request page number
2020-02-11 04:34:01 -08:00
hwmon: (nct7802) Fix voltage limits to wrong registers
2020-01-29 16:43:21 +01:00
coresight: tmc-etf: Do not call smp_processor_id from preemptible
2020-01-29 16:43:23 +01:00
i2c: stm32f7: report dma error during probe
2020-01-27 14:51:21 +01:00
iio: st_gyro: Correct data for LSM9DS0 gyro
2020-02-01 09:37:04 +00:00
IB/core: Fix ODP get user pages flow
2020-02-11 04:34:13 -08:00
Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
2020-01-29 16:43:20 +01:00
iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping
2020-02-01 09:37:10 +00:00
irqchip: Place CONFIG_SIFIVE_PLIC into the menu
2020-01-23 08:21:36 +01:00
staging: gigaset: add endpoint-type sanity check
2019-12-17 20:34:33 +01:00
led: triggers: Fix dereferencing of null pointer
2020-01-27 14:51:10 +01:00
lightnvm: pblk: fix lock order in pblk_rb_tear_down_check
2020-01-27 14:50:45 +01:00
macintosh/windfarm_smu_sat: Fix debug output
2019-12-01 09:16:37 +01:00
mailbox: qcom-apcs: fix max_register value
2020-01-27 14:51:14 +01:00
bcache: add readahead cache policy options via sysfs interface
2020-02-11 04:34:08 -08:00
media: rc: ensure lirc is initialized before registering input device
2020-02-11 04:34:08 -08:00
memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20
2020-01-27 14:50:13 +01:00
memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
2019-10-29 09:20:07 +01:00
scsi: mptfusion: Fix double fetch bug in ioctl
2020-01-23 08:21:28 +01:00
mfd: rn5t618: Mark ADC control register volatile
2020-02-11 04:34:14 -08:00
mei: me: add comet point (lake) H device ids
2020-02-01 09:37:04 +00:00
mmc: sdhci-of-at91: fix memleak on clk_get failure
2020-02-11 04:34:00 -08:00
ubi: Fix an error pointer dereference in error handling code
2020-02-11 04:34:14 -08:00
net: dsa: b53: Always use dev->vlan_enabled in b53_configure_vlan()
2020-02-11 04:34:16 -08:00
NFC: pn544: Adjust indentation in pn544_hci_check_presence
2020-02-11 04:34:12 -08:00
ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
2020-01-27 14:50:55 +01:00
libnvdimm/btt: fix variable 'rc' set but not used
2020-01-04 19:13:00 +01:00
nvme: retain split access workaround for capability reads
2020-01-27 14:51:16 +01:00
nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm
2020-01-27 14:50:58 +01:00
of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
2020-02-11 04:34:03 -08:00
OPP: Fix missing debugfs supply directory for OPPs
2020-01-27 14:50:04 +01:00
parisc: Disable HP HSC-PCI Cards to prevent kernel crash
2019-10-05 13:10:04 +02:00
parport: load lowlevel driver if ports not found
2019-12-31 16:36:01 +01:00
PCI: keystone: Fix link training retries initiation
2020-02-11 04:34:00 -08:00
phy: qualcomm: Adjust indentation in read_poll_timeout
2020-02-11 04:34:12 -08:00
pinctrl: iproc-gpio: Fix incorrect pinconf configurations
2020-01-27 14:51:12 +01:00
platform/x86: intel_scu_ipc: Fix interrupt support
2020-02-11 04:33:57 -08:00
power: supply: ltc2941-battery-gauge: fix use-after-free
2020-02-11 04:34:02 -08:00
ptp: free ptp device pin descriptors properly
2020-01-23 08:21:35 +01:00
pwm: meson: Don't disable PWM when setting duty repeatedly
2020-01-27 14:50:47 +01:00
drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()
2020-01-27 14:50:31 +01:00
regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB
2020-01-27 14:50:33 +01:00
remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996
2020-01-27 14:50:10 +01:00
reset: Fix memory leak in reset_control_array_put()
2019-12-05 09:19:36 +01:00
rpmsg: glink: Free pending deferred work on remove
2019-12-21 10:57:30 +01:00
rtc: pcf2127: bugfix: read rtc disables watchdog
2020-01-27 14:51:07 +01:00
s390/qeth: Fix initialization of vnicc cmd masks during set online
2020-01-27 14:51:18 +01:00
scsi: ufs: Recheck bkops level if bkops is disabled
2020-02-11 04:34:12 -08:00
slimbus: ngd: Fix build error on x86
2019-12-13 08:51:54 +01:00
soc: ti: wkup_m3_ipc: Fix race condition with rproc_boot
2020-02-05 14:43:41 +00:00
soundwire: intel: fix PDI/stream mapping for Bulk
2019-12-31 16:35:55 +01:00
spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls
2020-02-01 09:37:08 +00:00
staging: vt6656: Fix false Tx excessive retries reporting.
2020-02-01 09:37:03 +00:00
scsi: RDMA/isert: Fix a recently introduced regression related to logout
2020-01-29 16:43:21 +01:00
tee: optee: Fix compilation issue with nommu
2020-02-05 14:43:50 +00:00
thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
2020-01-27 14:50:48 +01:00
thunderbolt: Power cycle the router if NVM authentication fails
2019-12-05 09:21:27 +01:00
serial: 8250_bcm2835aux: Fix line mismatch on driver unbind
2020-02-01 09:37:03 +00:00
driver: uio: fix possible use-after-free in __uio_register_device
2020-01-27 14:50:17 +01:00
usb: gadget: f_ecm: Use atomic_t to track in-flight request
2020-02-11 04:33:56 -08:00
vfio/mdev: Fix aborting mdev child device removal if one fails
2020-01-27 14:50:46 +01:00
vhost/test: stop device before reset
2020-01-27 14:51:19 +01:00
backlight: pwm_bl: Fix heuristic to determine number of brightness levels
2020-01-27 14:50:58 +01:00
virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr
2019-11-06 13:06:04 +01:00
virtio-balloon: fix managed page counts when migrating pages between zones
2019-12-17 20:34:43 +01:00
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: fix UAF in reboot notifier handling in watchdog core code
2020-02-11 04:34:08 -08:00
xen/balloon: Support xend-based toolstack take two
2020-02-11 04:34:08 -08:00
4ecba33ec8