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Sumit Garg d3c4786b01 tee: optee: Fix supplicant based device enumeration 
[ Upstream commit 7269cba53d ]

Currently supplicant dependent optee device enumeration only registers
devices whenever tee-supplicant is invoked for the first time. But it
forgets to remove devices when tee-supplicant daemon stops running and
closes its context gracefully. This leads to following error for fTPM
driver during reboot/shutdown:

[   73.466791] tpm tpm0: ftpm_tee_tpm_op_send: SUBMIT_COMMAND invoke error: 0xffff3024

Fix this by adding an attribute for supplicant dependent devices so that
the user-space service can detect and detach supplicant devices before
closing the supplicant:

$ for dev in /sys/bus/tee/devices/*; do if [[ -f "$dev/need_supplicant" && -f "$dev/driver/unbind" ]]; \
      then echo $(basename "$dev") > $dev/driver/unbind; fi done

Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Closes: https://github.com/OP-TEE/optee_os/issues/6094
Fixes: 5f178bb71e ("optee: enable support for multi-stage bus enumeration")
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
[jw: fixed up Date documentation]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-12-13 18:45:11 +01:00
..
ABI tee: optee: Fix supplicant based device enumeration 2023-12-13 18:45:11 +01:00
accel accel/qaic: Add documentation for AIC100 accelerator driver 2023-04-06 08:23:03 +02:00
accounting docs: psi: use correct config name 2023-07-31 09:54:17 -06:00
admin-guide smp,csd: Throw an error if a CSD lock is stuck for too long 2023-11-28 17:19:36 +00:00
arch arm64 fixes for -rc5 2023-10-06 07:46:25 -07:00
block Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
bpf Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
cdrom Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
core-api workqueue: doc: Fix function and sysfs path errors 2023-10-12 07:27:22 -10:00
cpu-freq Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents 2023-01-24 15:27:08 -07:00
crypto docs: crypto: async-tx-api: fix typo in struct name 2023-06-09 01:59:30 -06:00
dev-tools LoongArch changes for v6.6 2023-09-08 12:16:52 -07:00
devicetree dt-bindings: interrupt-controller: Allow #power-domain-cells 2023-12-13 18:45:09 +01:00
doc-guide Documentation: doc-guide: use '%' constant indicator in Return: examples 2023-07-14 13:16:59 -06:00
driver-api ata changes for 6.6 2023-09-05 12:37:28 -07:00
fault-injection Documentation: Fix typos 2023-08-18 11:29:03 -06:00
fb Documentation: Fix typos 2023-08-18 11:29:03 -06:00
features LoongArch changes for v6.6 2023-09-08 12:16:52 -07:00
filesystems ovl: fix regression in showing lowerdir mount option 2023-10-14 09:24:11 +03:00
firmware-guide Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
firmware_class firmware: revamp firmware documentation 2017-01-11 09:42:59 +01:00
fpga Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
gpu drm ci for 6.6-rc1 2023-09-10 11:55:26 -07:00
hid HID: Add introduction about HID for non-kernel programmers 2023-08-07 13:24:36 +02:00
hwmon Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
i2c i2c: i801: Add support for Intel Birch Stream SoC 2023-11-28 17:19:46 +00:00
iio docs: iio: add documentation for BNO055 driver 2022-09-21 18:42:56 +01:00
images docs: add SVG version of the Linux logo 2022-06-01 09:32:45 -06:00
infiniband RDMA/core: Remove FMR device ops 2020-06-02 20:32:54 -03:00
input input: docs: pxrc: remove reference to phoenix-sim 2023-08-28 12:43:32 -06:00
isdn Documentation: isdn: correct spelling 2023-02-10 16:28:13 -08:00
kbuild Documentation: kbuild: explain handling optional dependencies 2023-09-25 16:01:05 +09:00
kernel-hacking Documentation: Add document for false sharing 2023-04-10 16:46:11 -06:00
leds - New Drivers 2023-07-03 11:26:05 -07:00
litmus-tests LKMM scripting updates for v6.4 2023-04-24 12:02:25 -07:00
livepatch Documentation: Fix typos 2023-08-18 11:29:03 -06:00
locking Documentation: Fix typos 2023-08-18 11:29:03 -06:00
maintainer Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
mhi docs: Add documentation for MHI bus 2020-03-19 07:41:04 +01:00
misc-devices Documentation: Add TI TPS6594 PFSM 2023-06-15 13:41:53 +02:00
mm Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
netlink netlink: specs: devlink: fix reply command values 2023-10-13 17:27:27 -07:00
networking docs: fix info about representor identification 2023-10-13 17:30:00 -07:00
nvdimm nvdimm: fixes to maintainter-entry-profile 2020-05-25 10:19:19 -06:00
nvme docs, nvme: add a feature and quirk policy document 2022-12-28 05:37:12 -10:00
PCI Merge branch 'pci/misc' 2023-08-29 11:03:57 -05:00
pcmcia Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
peci Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents 2023-01-24 15:27:08 -07:00
power Documentation: Fix typos 2023-08-18 11:29:03 -06:00
powerpc powerpc updates for 6.6 2023-08-31 12:43:10 -07:00
process Documentation: embargoed-hardware-issues.rst: Clarify prenotifaction 2023-10-05 11:13:28 +02:00
RCU Docs/RCU/rculist_nulls: Fix text about atomic_set_release() 2023-07-14 14:55:57 -07:00
riscv Merge patch series "RISC-V: Probe for misaligned access speed" 2023-09-08 11:24:12 -07:00
rust docs: rust: update Rust docs output path 2023-10-19 16:39:03 +02:00
scheduler Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
scsi SCSI misc on 20230902 2023-09-02 12:02:41 -07:00
security Documentation: Fix typos 2023-08-18 11:29:03 -06:00
sound ALSA: docs: Fix a typo of midi2_ump_probe option for snd-usb-audio 2023-09-12 10:00:46 +02:00
sphinx Documentation: Fix typos 2023-08-18 11:29:03 -06:00
sphinx-static docs: Add more information to the HTML sidebar 2023-02-08 13:28:27 -07:00
spi Documentation: Fix typos 2023-08-18 11:29:03 -06:00
staging Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
target scsi: target: docs: Remove tcm_mod_builder.py 2023-06-28 22:01:32 -04:00
timers Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
tools rtla: fix a example in rtla-timerlat-hist.rst 2023-09-22 14:44:04 +02:00
trace Documentation: probes: Add a new ret_ip callback parameter 2023-10-17 10:21:45 +09:00
translations workqueue: Fixes for v6.6-rc5 2023-10-12 17:16:10 -07:00
usb USB / Thunderbolt / PHY driver update for 6.6-rc1 2023-09-01 09:23:34 -07:00
userspace-api Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
virt ARM: 2023-09-07 13:52:20 -07:00
w1 Documentation: Fix typos 2023-08-18 11:29:03 -06:00
watchdog Documentation: Fix typos 2023-08-18 11:29:03 -06:00
wmi Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
atomic_bitops.txt wait_on_bit: add an acquire memory barrier 2022-08-26 09:30:25 -07:00
atomic_t.txt Documentation: Fixed a typo in atomic_t.txt 2023-01-03 20:47:04 -08:00
Changes docs: add back 'Documentation/Changes' file (as symlink) 2016-12-14 16:30:12 -08:00
CodingStyle doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
conf.py Documentation: conf.py: Add __force to c_id_attributes 2023-05-19 08:58:10 -06:00
docutils.conf doc-rst: Add missing newline at end of file 2019-06-20 14:16:56 -06:00
dontdiff scripts: remove bin2c 2023-01-26 12:43:33 +09:00
index.rst docs: create a top-level arch/ directory 2023-03-23 13:27:27 -06:00
Kconfig Documentation: Avoid duplicate Kconfig inclusion 2023-01-19 13:56:34 -07:00
Makefile docs: Integrate rustdoc generation into htmldocs 2023-07-21 15:08:46 -06:00
memory-barriers.txt locking/memory-barriers.txt: Improve documentation for writel() example 2023-01-03 20:47:04 -08:00
SubmittingPatches doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
subsystem-apis.rst docs: consolidate networking interfaces 2023-07-21 14:54:50 -06:00