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Here is the big set of tty and serial driver updates for 5.13-rc1.
Actually busy this release, with a number of cleanups happening:
- much needed core tty cleanups by Jiri Slaby
- removal of unused and orphaned old-style serial drivers. If
anyone shows up with this hardware, it is trivial to restore
these but we really do not think they are in use anymore.
- fixes and cleanups from Johan Hovold on a number of termios
setting corner cases that loads of drivers got wrong as well
as removing unneeded code due to tty core changes from long
ago that were never propagated out to the drivers
- loads of platform-specific serial port driver updates and
fixes
- coding style cleanups and other small fixes and updates all
over the tty/serial tree.
All of these have been in linux-next for a while now with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial driver updates from Greg KH:
"Here is the big set of tty and serial driver updates for 5.13-rc1.
Actually busy this release, with a number of cleanups happening:
- much needed core tty cleanups by Jiri Slaby
- removal of unused and orphaned old-style serial drivers. If anyone
shows up with this hardware, it is trivial to restore these but we
really do not think they are in use anymore.
- fixes and cleanups from Johan Hovold on a number of termios setting
corner cases that loads of drivers got wrong as well as removing
unneeded code due to tty core changes from long ago that were never
propagated out to the drivers
- loads of platform-specific serial port driver updates and fixes
- coding style cleanups and other small fixes and updates all over
the tty/serial tree.
All of these have been in linux-next for a while now with no reported
issues"
* tag 'tty-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (186 commits)
serial: extend compile-test coverage
serial: stm32: add FIFO threshold configuration
dt-bindings: serial: 8250: update TX FIFO trigger level
dt-bindings: serial: stm32: override FIFO threshold properties
dt-bindings: serial: add RX and TX FIFO properties
serial: xilinx_uartps: drop low-latency workaround
serial: vt8500: drop low-latency workaround
serial: timbuart: drop low-latency workaround
serial: sunsu: drop low-latency workaround
serial: sifive: drop low-latency workaround
serial: txx9: drop low-latency workaround
serial: sa1100: drop low-latency workaround
serial: rp2: drop low-latency workaround
serial: rda: drop low-latency workaround
serial: owl: drop low-latency workaround
serial: msm_serial: drop low-latency workaround
serial: mpc52xx_uart: drop low-latency workaround
serial: meson: drop low-latency workaround
serial: mcf: drop low-latency workaround
serial: lpc32xx_hs: drop low-latency workaround
...
Here is the big set of staging and IIO driver updates for 5.13-rc1.
Lots of little churn in here, and some larger churn as well. Major
things are:
- removal of wimax drivers, no one has this hardware anymore for
this failed "experiment".
- removal of the Google gasket driver, turns out no one wanted
to maintain it or cares about it anymore, so they asked for it
to be removed.
- comedi finally moves out of the staging directory into
drivers/comedi/ This is one of the oldest kernel subsystems
around, being created in the 2.0 kernel days, and was one of
the first things added to drivers/staging/ when that was
created over 15 years ago. It should have been moved out of
staging a long time ago, it's well maintained and used by
loads of different devices in the real world every day. Nice
to see this finally happen.
- so many tiny coding style cleanups it's not funny. Perfect
storm of at least 2 different intern project application
deadlines combined to provide a huge number of new
contributions in this area from people learning how to do
kernel development. Great job to everyone involved here.
There's also the normal updates for IIO drivers with new IIO drivers and
updates all over that subsystem.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver updates from Greg KH:
"Here is the big set of staging and IIO driver updates for 5.13-rc1.
Lots of little churn in here, and some larger churn as well. Major
things are:
- removal of wimax drivers, no one has this hardware anymore for this
failed "experiment".
- removal of the Google gasket driver, turns out no one wanted to
maintain it or cares about it anymore, so they asked for it to be
removed.
- comedi finally moves out of the staging directory into drivers/comedi
This is one of the oldest kernel subsystems around, being created
in the 2.0 kernel days, and was one of the first things added to
drivers/staging/ when that was created over 15 years ago.
It should have been moved out of staging a long time ago, it's well
maintained and used by loads of different devices in the real world
every day. Nice to see this finally happen.
- so many tiny coding style cleanups it's not funny.
Perfect storm of at least 2 different intern project application
deadlines combined to provide a huge number of new contributions in
this area from people learning how to do kernel development. Great
job to everyone involved here.
There's also the normal updates for IIO drivers with new IIO drivers
and updates all over that subsystem.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (907 commits)
staging: octeon: Use 'for_each_child_of_node'
Staging: rtl8723bs: rtw_xmit: fixed tabbing issue
staging: rtl8188eu: remove unused function parameters
staging: rtl8188eu: cmdThread is a task_struct
staging: rtl8188eu: remove constant variable and dead code
staging: rtl8188eu: change bLeisurePs' type to bool
staging: rtl8723bs: remove empty #ifdef block
staging: rtl8723bs: remove unused DBG_871X_LEVEL macro declarations
staging: rtl8723bs: split too long line
staging: rtl8723bs: fix indentation in if block
staging: rtl8723bs: fix code indent issue
staging: rtl8723bs: replace DBG_871X_LEVEL logs with netdev_*()
staging: rtl8192e: indent statement properly
staging: rtl8723bs: Remove led_blink_hdl() and everything related
staging: comedi: move out of staging directory
staging: rtl8723bs: remove sdio_drv_priv structure
staging: rtl8723bs: remove unused argument in function
staging: rtl8723bs: remove DBG_871X_SEL_NL macro declaration
staging: rtl8723bs: replace DBG_871X_SEL_NL with netdev_dbg()
staging: rtl8723bs: fix indentation issue introduced by long line split
...
Here is the big set of various smaller driver subsystem updates for
5.13-rc1.
Major bits in here are:
- habanalabs driver updates
- hwtracing driver updates
- interconnect driver updates
- mhi driver updates
- extcon driver updates
- fpga driver updates
- new binder features added
- nvmem driver updates
- phy driver updates
- soundwire driver updates
- smaller misc and char driver fixes and updates.
- bluetooth driver bugfix that maintainer wanted to go through
this tree.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of various smaller driver subsystem updates for
5.13-rc1.
Major bits in here are:
- habanalabs driver updates
- hwtracing driver updates
- interconnect driver updates
- mhi driver updates
- extcon driver updates
- fpga driver updates
- new binder features added
- nvmem driver updates
- phy driver updates
- soundwire driver updates
- smaller misc and char driver fixes and updates.
- bluetooth driver bugfix that maintainer wanted to go through this
tree.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits)
bluetooth: eliminate the potential race condition when removing the HCI controller
coresight: etm-perf: Fix define build issue when built as module
phy: Revert "phy: ti: j721e-wiz: add missing of_node_put"
phy: ti: j721e-wiz: Add missing include linux/slab.h
phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove()
stm class: Use correct UUID APIs
intel_th: pci: Add Alder Lake-M support
intel_th: pci: Add Rocket Lake CPU support
intel_th: Consistency and off-by-one fix
intel_th: Constify attribute_group structs
intel_th: Constify all drvdata references
stm class: Remove an unused function
habanalabs/gaudi: Fix uninitialized return code rc when read size is zero
greybus: es2: fix kernel-doc warnings
mei: me: add Alder Lake P device id.
dw-xdata-pcie: Update outdated info and improve text format
dw-xdata-pcie: Fix documentation build warns
fbdev: zero-fill colormap in fbcmap.c
firmware: qcom-scm: Fix QCOM_SCM configuration
speakup: i18n: Switch to kmemdup_nul() in spk_msg_set()
...
Highlights:
- Lots of Microsoft Surface work
- platform-profile support for HP and Microsoft Surface devices
- New WMI Gigabyte motherboard temperature monitoring driver
- Intel PMC improvements for Tiger Lake and Alder Lake
- Misc. bugfixes, improvements and quirk additions all over
The following is an automated git shortlog grouped by driver:
Add support for DYTC MMC_GET BIOS API.:
- Add support for DYTC MMC_GET BIOS API.
Adjust Dell drivers to a personal email address:
- Adjust Dell drivers to a personal email address
Fix typo in Kconfig:
- Fix typo in Kconfig
ISST:
- Account for increased timeout in some cases
MAINTAINERS:
- Add missing section for alienware-wmi driver
- Adjust Dell drivers to email alias
- update MELLANOX HARDWARE PLATFORM SUPPORT maintainers
Merge tag 'ib-mfd-platform-x86-v5.13' into review-hans:
- Merge tag 'ib-mfd-platform-x86-v5.13' into review-hans
Merge tag 'irq-no-autoen-2021-03-25' into review-hans:
- Merge tag 'irq-no-autoen-2021-03-25' into review-hans
Typo fix in the file classmate-laptop.c:
- Typo fix in the file classmate-laptop.c
add Gigabyte WMI temperature driver:
- add Gigabyte WMI temperature driver
add support for Advantech software defined button:
- add support for Advantech software defined button
asus-laptop:
- fix kobj_to_dev.cocci warnings
asus-wmi:
- Add param to turn fn-lock mode on by default
dell-wmi-sysman:
- Make init_bios_attributes() ACPI object parsing more robust
- Cleanup create_attributes_level_sysfs_files()
- Make sysman_init() return -ENODEV of the interfaces are not found
- Cleanup sysman_init() error-exit handling
- Fix release_attributes_data() getting called twice on init_bios_attributes() failure
- Make it safe to call exit_foo_attributes() multiple times
- Fix possible NULL pointer deref on exit
- Fix crash caused by calling kset_unregister twice
docs:
- driver-api: Add Surface DTX driver documentation
genirq:
- Add IRQF_NO_AUTOEN for request_irq/nmi()
gigabyte-wmi:
- add support for B550M AORUS PRO-P
- add X570 AORUS ELITE
hp-wmi:
- add platform profile support
- rename "thermal policy" to "thermal profile"
intel-hid:
- Fix spurious wakeups caused by tablet-mode events during suspend
- Support Lenovo ThinkPad X1 Tablet Gen 2
intel-vbtn:
- Remove unused KEYMAP_LEN define
- Stop reporting SW_DOCK events
intel_chtdc_ti_pwrbtn:
- Fix missing IRQF_ONESHOT as only threaded handler
intel_pmc_core:
- Uninitialized data in pmc_core_lpm_latch_mode_write()
- add ACPI dependency
- Fix "unsigned 'ret' is never less than zero" smatch warning
- Add support for Alder Lake PCH-P
- Add LTR registers for Tiger Lake
- Add option to set/clear LPM mode
- Add requirements file to debugfs
- Get LPM requirements for Tiger Lake
- Show LPM residency in microseconds
- Handle sub-states generically
- Remove global struct pmc_dev
- Don't use global pmcdev in quirks
- export platform global reset bits via etr3 sysfs file
- Ignore GBE LTR on Tiger Lake platforms
- Update Kconfig
intel_pmt_class:
- Initial resource to 0
intel_pmt_crashlog:
- Fix incorrect macros
mfd:
- intel_pmt: Add support for DG1
- intel_pmt: Fix nuisance messages and handling of disabled capabilities
panasonic-laptop:
- remove redundant assignment of variable result
platform:
- x86: ACPI: Get rid of ACPICA message printing
platform/mellanox:
- mlxreg-hotplug: move to use request_irq by IRQF_NO_AUTOEN flag
- Typo fix in the file mlxbf-bootctl.c
platform/surface:
- aggregator: fix a bit test
- aggregator: move to use request_irq by IRQF_NO_AUTOEN flag
- aggregator_registry: Give devices time to set up when connecting
- clean up a variable in surface_dtx_read()
- fix semicolon.cocci warnings
- aggregator_registry: Add support for Surface Pro 7+
- aggregator_registry: Make symbol 'ssam_base_hub_group' static
- dtx: Add support for native SSAM devices
- Add DTX driver
- aggregator: Make SSAM_DEFINE_SYNC_REQUEST_x define static functions
- Add platform profile driver
- aggregator_registry: Add HID subsystem devices
- aggregator_registry: Add DTX device
- aggregator_registry: Add platform profile device
- aggregator_registry: Add battery subsystem devices
- aggregator_registry: Add base device hub
- Set up Surface Aggregator device registry
pmc_atom:
- Match all Beckhoff Automation baytrail boards with critclk_systems DMI table
thinkpad_acpi:
- Add labels to the first 2 temperature sensors
- Correct thermal sensor allocation
- Correct minor typo
- sysfs interface to get wwan antenna type
- Disable DYTC CQL mode around switching to balanced mode
- Allow the FnLock LED to change state
- check dytc version for lapmode sysfs
- Handle keyboard cover attach/detach events
tools/power/x86/intel-speed-select:
- v1.9 release
- Drop __DATE__ and __TIME__ macros
- Add options to force online
- Process mailbox read error for core-power
- Increase string size
touchscreen_dmi:
- Add info for the Teclast Tbook 11 tablet
- Handle device properties with software node API
wmi:
- Make remove callback return void
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Merge tag 'platform-drivers-x86-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates freom Hans de Goede:
- lots of Microsoft Surface work
- platform-profile support for HP and Microsoft Surface devices
- new WMI Gigabyte motherboard temperature monitoring driver
- Intel PMC improvements for Tiger Lake and Alder Lake
- misc bugfixes, improvements and quirk additions all over
* tag 'platform-drivers-x86-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (87 commits)
platform/x86: gigabyte-wmi: add support for B550M AORUS PRO-P
platform/x86: intel_pmc_core: Uninitialized data in pmc_core_lpm_latch_mode_write()
platform/x86: intel_pmc_core: add ACPI dependency
platform/surface: aggregator: fix a bit test
platform/x86: intel_pmc_core: Fix "unsigned 'ret' is never less than zero" smatch warning
platform/x86: touchscreen_dmi: Add info for the Teclast Tbook 11 tablet
platform/x86: intel_pmc_core: Add support for Alder Lake PCH-P
platform/x86: intel_pmc_core: Add LTR registers for Tiger Lake
platform/x86: intel_pmc_core: Add option to set/clear LPM mode
platform/x86: intel_pmc_core: Add requirements file to debugfs
platform/x86: intel_pmc_core: Get LPM requirements for Tiger Lake
platform/x86: intel_pmc_core: Show LPM residency in microseconds
platform/x86: intel_pmc_core: Handle sub-states generically
platform/x86: intel_pmc_core: Remove global struct pmc_dev
platform/x86: intel_pmc_core: Don't use global pmcdev in quirks
platform/x86: intel_chtdc_ti_pwrbtn: Fix missing IRQF_ONESHOT as only threaded handler
platform/x86: gigabyte-wmi: add X570 AORUS ELITE
platform/x86: thinkpad_acpi: Add labels to the first 2 temperature sensors
platform/x86: pmc_atom: Match all Beckhoff Automation baytrail boards with critclk_systems DMI table
platform/x86: add Gigabyte WMI temperature driver
...
- MTE asynchronous support for KASan. Previously only synchronous
(slower) mode was supported. Asynchronous is faster but does not allow
precise identification of the illegal access.
- Run kernel mode SIMD with softirqs disabled. This allows using NEON in
softirq context for crypto performance improvements. The conditional
yield support is modified to take softirqs into account and reduce the
latency.
- Preparatory patches for Apple M1: handle CPUs that only have the VHE
mode available (host kernel running at EL2), add FIQ support.
- arm64 perf updates: support for HiSilicon PA and SLLC PMU drivers, new
functions for the HiSilicon HHA and L3C PMU, cleanups.
- Re-introduce support for execute-only user permissions but only when
the EPAN (Enhanced Privileged Access Never) architecture feature is
available.
- Disable fine-grained traps at boot and improve the documented boot
requirements.
- Support CONFIG_KASAN_VMALLOC on arm64 (only with KASAN_GENERIC).
- Add hierarchical eXecute Never permissions for all page tables.
- Add arm64 prctl(PR_PAC_{SET,GET}_ENABLED_KEYS) allowing user programs
to control which PAC keys are enabled in a particular task.
- arm64 kselftests for BTI and some improvements to the MTE tests.
- Minor improvements to the compat vdso and sigpage.
- Miscellaneous cleanups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- MTE asynchronous support for KASan. Previously only synchronous
(slower) mode was supported. Asynchronous is faster but does not
allow precise identification of the illegal access.
- Run kernel mode SIMD with softirqs disabled. This allows using NEON
in softirq context for crypto performance improvements. The
conditional yield support is modified to take softirqs into account
and reduce the latency.
- Preparatory patches for Apple M1: handle CPUs that only have the VHE
mode available (host kernel running at EL2), add FIQ support.
- arm64 perf updates: support for HiSilicon PA and SLLC PMU drivers,
new functions for the HiSilicon HHA and L3C PMU, cleanups.
- Re-introduce support for execute-only user permissions but only when
the EPAN (Enhanced Privileged Access Never) architecture feature is
available.
- Disable fine-grained traps at boot and improve the documented boot
requirements.
- Support CONFIG_KASAN_VMALLOC on arm64 (only with KASAN_GENERIC).
- Add hierarchical eXecute Never permissions for all page tables.
- Add arm64 prctl(PR_PAC_{SET,GET}_ENABLED_KEYS) allowing user programs
to control which PAC keys are enabled in a particular task.
- arm64 kselftests for BTI and some improvements to the MTE tests.
- Minor improvements to the compat vdso and sigpage.
- Miscellaneous cleanups.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (86 commits)
arm64/sve: Add compile time checks for SVE hooks in generic functions
arm64/kernel/probes: Use BUG_ON instead of if condition followed by BUG.
arm64: pac: Optimize kernel entry/exit key installation code paths
arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)
arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere
arm64/sve: Remove redundant system_supports_sve() tests
arm64: fpsimd: run kernel mode NEON with softirqs disabled
arm64: assembler: introduce wxN aliases for wN registers
arm64: assembler: remove conditional NEON yield macros
kasan, arm64: tests supports for HW_TAGS async mode
arm64: mte: Report async tag faults before suspend
arm64: mte: Enable async tag check fault
arm64: mte: Conditionally compile mte_enable_kernel_*()
arm64: mte: Enable TCO in functions that can read beyond buffer limits
kasan: Add report for async mode
arm64: mte: Drop arch_enable_tagging()
kasan: Add KASAN mode kernel parameter
arm64: mte: Add asynchronous mode support
arm64: Get rid of CONFIG_ARM64_VHE
arm64: Cope with CPUs stuck in VHE mode
...
Pull crypto updates from Herbert Xu:
"API:
- crypto_destroy_tfm now ignores errors as well as NULL pointers
Algorithms:
- Add explicit curve IDs in ECDH algorithm names
- Add NIST P384 curve parameters
- Add ECDSA
Drivers:
- Add support for Green Sardine in ccp
- Add ecdh/curve25519 to hisilicon/hpre
- Add support for AM64 in sa2ul"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits)
fsverity: relax build time dependency on CRYPTO_SHA256
fscrypt: relax Kconfig dependencies for crypto API algorithms
crypto: camellia - drop duplicate "depends on CRYPTO"
crypto: s5p-sss - consistently use local 'dev' variable in probe()
crypto: s5p-sss - remove unneeded local variable initialization
crypto: s5p-sss - simplify getting of_device_id match data
ccp: ccp - add support for Green Sardine
crypto: ccp - Make ccp_dev_suspend and ccp_dev_resume void functions
crypto: octeontx2 - add support for OcteonTX2 98xx CPT block.
crypto: chelsio/chcr - Remove useless MODULE_VERSION
crypto: ux500/cryp - Remove duplicate argument
crypto: chelsio - remove unused function
crypto: sa2ul - Add support for AM64
crypto: sa2ul - Support for per channel coherency
dt-bindings: crypto: ti,sa2ul: Add new compatible for AM64
crypto: hisilicon - enable new error types for QM
crypto: hisilicon - add new error type for SEC
crypto: hisilicon - support new error types for ZIP
crypto: hisilicon - dynamic configuration 'err_info'
crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c
...
cap_setfcap is required to create file capabilities.
Since commit 8db6c34f1dbc ("Introduce v3 namespaced file capabilities"),
a process running as uid 0 but without cap_setfcap is able to work
around this as follows: unshare a new user namespace which maps parent
uid 0 into the child namespace.
While this task will not have new capabilities against the parent
namespace, there is a loophole due to the way namespaced file
capabilities are represented as xattrs. File capabilities valid in
userns 1 are distinguished from file capabilities valid in userns 2 by
the kuid which underlies uid 0. Therefore the restricted root process
can unshare a new self-mapping namespace, add a namespaced file
capability onto a file, then use that file capability in the parent
namespace.
To prevent that, do not allow mapping parent uid 0 if the process which
opened the uid_map file does not have CAP_SETFCAP, which is the
capability for setting file capabilities.
As a further wrinkle: a task can unshare its user namespace, then open
its uid_map file itself, and map (only) its own uid. In this case we do
not have the credential from before unshare, which was potentially more
restricted. So, when creating a user namespace, we record whether the
creator had CAP_SETFCAP. Then we can use that during map_write().
With this patch:
1. Unprivileged user can still unshare -Ur
ubuntu@caps:~$ unshare -Ur
root@caps:~# logout
2. Root user can still unshare -Ur
ubuntu@caps:~$ sudo bash
root@caps:/home/ubuntu# unshare -Ur
root@caps:/home/ubuntu# logout
3. Root user without CAP_SETFCAP cannot unshare -Ur:
root@caps:/home/ubuntu# /sbin/capsh --drop=cap_setfcap --
root@caps:/home/ubuntu# /sbin/setcap cap_setfcap=p /sbin/setcap
unable to set CAP_SETFCAP effective capability: Operation not permitted
root@caps:/home/ubuntu# unshare -Ur
unshare: write failed /proc/self/uid_map: Operation not permitted
Note: an alternative solution would be to allow uid 0 mappings by
processes without CAP_SETFCAP, but to prevent such a namespace from
writing any file capabilities. This approach can be seen at [1].
Background history: commit 95ebabde382 ("capabilities: Don't allow
writing ambiguous v3 file capabilities") tried to fix the issue by
preventing v3 fscaps to be written to disk when the root uid would map
to the same uid in nested user namespaces. This led to regressions for
various workloads. For example, see [2]. Ultimately this is a valid
use-case we have to support meaning we had to revert this change in
3b0c2d3eaa83 ("Revert 95ebabde382c ("capabilities: Don't allow writing
ambiguous v3 file capabilities")").
Link: https://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux.git/log/?h=2021-04-15/setfcap-nsfscaps-v4 [1]
Link: https://github.com/containers/buildah/issues/3071 [2]
Signed-off-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Andrew G. Morgan <morgan@kernel.org>
Tested-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Tested-by: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Couple of dmaengine driver fixes for:
- race and descriptor issue for xilinx driver
- fix interrupt handling, wq state & cleanup, field sizes for
completion, msix permissions for idxd driver
- rumtim pm fix for tegra driver
- double free fix in dma_async_device_register
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Merge tag 'dmaengine-fix-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"A couple of dmaengine driver fixes for:
- race and descriptor issue for xilinx driver
- fix interrupt handling, wq state & cleanup, field sizes for
completion, msix permissions for idxd driver
- runtime pm fix for tegra driver
- double free fix in dma_async_device_register"
* tag 'dmaengine-fix-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: idxd: fix wq cleanup of WQCFG registers
dmaengine: idxd: clear MSIX permission entry on shutdown
dmaengine: plx_dma: add a missing put_device() on error path
dmaengine: tegra20: Fix runtime PM imbalance on error
dmaengine: Fix a double free in dma_async_device_register
dmaengine: dw: Make it dependent to HAS_IOMEM
dmaengine: idxd: fix wq size store permission state
dmaengine: idxd: fix opcap sysfs attribute output
dmaengine: idxd: fix delta_rec and crc size field for completion record
dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback
dmaengine: xilinx: dpdma: Fix race condition in done IRQ
dmaengine: xilinx: dpdma: Fix descriptor issuing on video group
This change introduces a prctl that allows the user program to control
which PAC keys are enabled in a particular task. The main reason
why this is useful is to enable a userspace ABI that uses PAC to
sign and authenticate function pointers and other pointers exposed
outside of the function, while still allowing binaries conforming
to the ABI to interoperate with legacy binaries that do not sign or
authenticate pointers.
The idea is that a dynamic loader or early startup code would issue
this prctl very early after establishing that a process may load legacy
binaries, but before executing any PAC instructions.
This change adds a small amount of overhead to kernel entry and exit
due to additional required instruction sequences.
On a DragonBoard 845c (Cortex-A75) with the powersave governor, the
overhead of similar instruction sequences was measured as 4.9ns when
simulating the common case where IA is left enabled, or 43.7ns when
simulating the uncommon case where IA is disabled. These numbers can
be seen as the worst case scenario, since in more realistic scenarios
a better performing governor would be used and a newer chip would be
used that would support PAC unlike Cortex-A75 and would be expected
to be faster than Cortex-A75.
On an Apple M1 under a hypervisor, the overhead of the entry/exit
instruction sequences introduced by this patch was measured as 0.3ns
in the case where IA is left enabled, and 33.0ns in the case where
IA is disabled.
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Link: https://linux-review.googlesource.com/id/Ibc41a5e6a76b275efbaa126b31119dc197b927a5
Link: https://lore.kernel.org/r/d6609065f8f40397a4124654eb68c9f490b4d477.1616123271.git.pcc@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The delta_rec_size and crc_val in the completion record should
be 32bits and not 16bits.
Fixes: bfe1d56091c1 ("dmaengine: idxd: Init and probe for Intel data accelerators")
Reported-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/161645618572.2003490.14466173451736323035.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
- Add support to reset device after the user closes the file descriptor.
Because we support a single user, we can reset the device (if needs to)
after a user closes its file descriptor to make sure the device is in
idle and clean state for the next user.
- Add a new feature to allow the user to wait on interrupt. This is needed
for future ASICs
- Replace GFP_ATOMIC with GFP_KERNEL wherever possible and add code to
support failure of allocating with GFP_ATOMIC.
- Update code to support the latest firmware image:
- More security features are done in the firmware
- Remove hard-coded assumptions and replace them with values that are
sent to the firmware on loading.
- Print device unusable error
- Reset device in case the communication between driver and firmware
gets out of sync.
- Support new PCI device ids for secured GAUDI.
- Expose current power draw through the INFO IOCTL.
- Support resetting the device upon a request from the BMC (through F/W).
- Always use only a single MSI in GAUDI, due to H/W limitation.
- Improve data-path code by taking out code from spinlock protection.
- Allow user to specify custom timeout per Command Submission.
- Some enhancements to debugfs.
- Various minor changes and improvements.
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Merge tag 'misc-habanalabs-next-2021-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next
Oded writes:
This tag contains habanalabs driver changes for v5.13:
- Add support to reset device after the user closes the file descriptor.
Because we support a single user, we can reset the device (if needs to)
after a user closes its file descriptor to make sure the device is in
idle and clean state for the next user.
- Add a new feature to allow the user to wait on interrupt. This is needed
for future ASICs
- Replace GFP_ATOMIC with GFP_KERNEL wherever possible and add code to
support failure of allocating with GFP_ATOMIC.
- Update code to support the latest firmware image:
- More security features are done in the firmware
- Remove hard-coded assumptions and replace them with values that are
sent to the firmware on loading.
- Print device unusable error
- Reset device in case the communication between driver and firmware
gets out of sync.
- Support new PCI device ids for secured GAUDI.
- Expose current power draw through the INFO IOCTL.
- Support resetting the device upon a request from the BMC (through F/W).
- Always use only a single MSI in GAUDI, due to H/W limitation.
- Improve data-path code by taking out code from spinlock protection.
- Allow user to specify custom timeout per Command Submission.
- Some enhancements to debugfs.
- Various minor changes and improvements.
* tag 'misc-habanalabs-next-2021-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (41 commits)
habanalabs: print f/w boot unknown error
habanalabs: update to latest F/W communication header
habanalabs/gaudi: skip iATU if F/W security is enabled
habanalabs/gaudi: derive security status from pci id
habanalabs: move dram scrub to free sequence
habanalabs: send dynamic msi-x indexes to f/w
habanalabs/gaudi: clear QM errors only if not in stop_on_err mode
habanalabs: support DEVICE_UNUSABLE error indication from FW
habanalabs: use strscpy instead of sprintf and strlcpy
habanalabs: remove the store jobs array from CS IOCTL
habanalabs/gaudi: add debugfs to DMA from the device
habanalabs/gaudi: sync stream add protection to SOB reset flow
habanalabs: add custom timeout flag per cs
habanalabs: improve utilization calculation
habanalabs: support legacy and new pll indexes
habanalabs: move relevant datapath work outside cs lock
habanalabs: avoid soft lockup bug upon mapping error
habanalabs/gaudi: Update async events header
habanalabs/gaudi: unsecure TPC cfg status registers
habanalabs/gaudi: always use single-msi mode
...
When async binder buffer got exhausted, some normal oneway transactions
will also be discarded and may cause system or application failures. By
that time, the binder debug information we dump may not be relevant to
the root cause. And this issue is difficult to debug if without the
backtrace of the thread sending spam.
This change will send BR_ONEWAY_SPAM_SUSPECT to userspace when oneway
spamming is detected, request to dump current backtrace. Oneway spamming
will be reported only once when exceeding the threshold (target process
dips below 80% of its oneway space, and current process is responsible for
either more than 50 transactions, or more than 50% of the oneway space).
And the detection will restart when the async buffer has returned to a
healthy state.
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Hang Lu <hangl@codeaurora.org>
Link: https://lore.kernel.org/r/1617961246-4502-3-git-send-email-hangl@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Callout devices are long-gone, but the ASYNC_SPLIT_TERMIOS flag was
never added to the deprecation mask.
Add it so that a warning is printed if it is ever used.
Fixes: 8a8ae62f8296 ("tty: warn on deprecated serial flags")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407095208.31838-7-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some kernel-internal ASYNC flags have been superseded by tty-port flags
and should no longer be used by kernel drivers.
Fix the misspelled "__KERNEL__" compile guards which failed their sole
purpose to break out-of-tree drivers that have not yet been updated.
Fixes: 5c0517fefc92 ("tty: core: Undefine ASYNC_* flags superceded by TTY_PORT* flags")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407095208.31838-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mac80211, wireless, and bpf trees. No scary regressions here
or in the works, but small fixes for 5.12 changes keep coming.
Current release - regressions:
- virtio: do not pull payload in skb->head
- virtio: ensure mac header is set in virtio_net_hdr_to_skb()
- Revert "net: correct sk_acceptq_is_full()"
- mptcp: revert "mptcp: provide subflow aware release function"
- ethernet: lan743x: fix ethernet frame cutoff issue
- dsa: fix type was not set for devlink port
- ethtool: remove link_mode param and derive link params
from driver
- sched: htb: fix null pointer dereference on a null new_q
- wireless: iwlwifi: Fix softirq/hardirq disabling in
iwl_pcie_enqueue_hcmd()
- wireless: iwlwifi: fw: fix notification wait locking
- wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding
the rtnl dependency
Current release - new code bugs:
- napi: fix hangup on napi_disable for threaded napi
- bpf: take module reference for trampoline in module
- wireless: mt76: mt7921: fix airtime reporting and related
tx hangs
- wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending
config command
Previous releases - regressions:
- rfkill: revert back to old userspace API by default
- nfc: fix infinite loop, refcount & memory leaks in LLCP sockets
- let skb_orphan_partial wake-up waiters
- xfrm/compat: Cleanup WARN()s that can be user-triggered
- vxlan, geneve: do not modify the shared tunnel info when PMTU
triggers an ICMP reply
- can: fix msg_namelen values depending on CAN_REQUIRED_SIZE
- can: uapi: mark union inside struct can_frame packed
- sched: cls: fix action overwrite reference counting
- sched: cls: fix err handler in tcf_action_init()
- ethernet: mlxsw: fix ECN marking in tunnel decapsulation
- ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx
- ethernet: i40e: fix receiving of single packets in xsk zero-copy
mode
- ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic
Previous releases - always broken:
- bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET
- bpf: Refcount task stack in bpf_get_task_stack
- bpf, x86: Validate computation of branch displacements
- ieee802154: fix many similar syzbot-found bugs
- fix NULL dereferences in netlink attribute handling
- reject unsupported operations on monitor interfaces
- fix error handling in llsec_key_alloc()
- xfrm: make ipv4 pmtu check honor ip header df
- xfrm: make hash generation lock per network namespace
- xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp
offload
- ethtool: fix incorrect datatype in set_eee ops
- xdp: fix xdp_return_frame() kernel BUG throw for page_pool
memory model
- openvswitch: fix send of uninitialized stack memory in ct limit
reply
Misc:
- udp: add get handling for UDP_GRO sockopt
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.12-rc7, including fixes from can, ipsec,
mac80211, wireless, and bpf trees.
No scary regressions here or in the works, but small fixes for 5.12
changes keep coming.
Current release - regressions:
- virtio: do not pull payload in skb->head
- virtio: ensure mac header is set in virtio_net_hdr_to_skb()
- Revert "net: correct sk_acceptq_is_full()"
- mptcp: revert "mptcp: provide subflow aware release function"
- ethernet: lan743x: fix ethernet frame cutoff issue
- dsa: fix type was not set for devlink port
- ethtool: remove link_mode param and derive link params from driver
- sched: htb: fix null pointer dereference on a null new_q
- wireless: iwlwifi: Fix softirq/hardirq disabling in
iwl_pcie_enqueue_hcmd()
- wireless: iwlwifi: fw: fix notification wait locking
- wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding the
rtnl dependency
Current release - new code bugs:
- napi: fix hangup on napi_disable for threaded napi
- bpf: take module reference for trampoline in module
- wireless: mt76: mt7921: fix airtime reporting and related tx hangs
- wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending
config command
Previous releases - regressions:
- rfkill: revert back to old userspace API by default
- nfc: fix infinite loop, refcount & memory leaks in LLCP sockets
- let skb_orphan_partial wake-up waiters
- xfrm/compat: Cleanup WARN()s that can be user-triggered
- vxlan, geneve: do not modify the shared tunnel info when PMTU
triggers an ICMP reply
- can: fix msg_namelen values depending on CAN_REQUIRED_SIZE
- can: uapi: mark union inside struct can_frame packed
- sched: cls: fix action overwrite reference counting
- sched: cls: fix err handler in tcf_action_init()
- ethernet: mlxsw: fix ECN marking in tunnel decapsulation
- ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx
- ethernet: i40e: fix receiving of single packets in xsk zero-copy
mode
- ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic
Previous releases - always broken:
- bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET
- bpf: Refcount task stack in bpf_get_task_stack
- bpf, x86: Validate computation of branch displacements
- ieee802154: fix many similar syzbot-found bugs
- fix NULL dereferences in netlink attribute handling
- reject unsupported operations on monitor interfaces
- fix error handling in llsec_key_alloc()
- xfrm: make ipv4 pmtu check honor ip header df
- xfrm: make hash generation lock per network namespace
- xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp
offload
- ethtool: fix incorrect datatype in set_eee ops
- xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory
model
- openvswitch: fix send of uninitialized stack memory in ct limit
reply
Misc:
- udp: add get handling for UDP_GRO sockopt"
* tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (182 commits)
net: fix hangup on napi_disable for threaded napi
net: hns3: Trivial spell fix in hns3 driver
lan743x: fix ethernet frame cutoff issue
net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh
net: dsa: lantiq_gswip: Configure all remaining GSWIP_MII_CFG bits
net: dsa: lantiq_gswip: Don't use PHY auto polling
net: sched: sch_teql: fix null-pointer dereference
ipv6: report errors for iftoken via netlink extack
net: sched: fix err handler in tcf_action_init()
net: sched: fix action overwrite reference counting
Revert "net: sched: bump refcount for new action in ACT replace mode"
ice: fix memory leak of aRFS after resuming from suspend
i40e: Fix sparse warning: missing error code 'err'
i40e: Fix sparse error: 'vsi->netdev' could be null
i40e: Fix sparse error: uninitialized symbol 'ring'
i40e: Fix sparse errors in i40e_txrx.c
i40e: Fix parameters in aq_get_phy_register()
nl80211: fix beacon head validation
bpf, x86: Validate computation of branch displacements for x86-32
bpf, x86: Validate computation of branch displacements for x86-64
...
The store part was never implemented in the code and never been used
by the userspace applications.
We currently use the related parameters to a different purpose with
a defined union. However, there is no point in that and it is better
to just remove the union and the store parameters.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
There is a need to allow to user to send command submissions with
custom timeout as some CS take longer than the max timeout that is
used by default.
Signed-off-by: Alon Mizrahi <amizrahi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add driver implementation for reading the current power from the device
CPU F/W.
Signed-off-by: Sagiv Ozeri <sozeri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order to support command submissions from user space, the driver
need to add support for user interrupt completions. The driver will
allow multiple user threads to wait for an interrupt and perform
a comparison with a given user address once interrupt expires.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Recompiling with the new extended version of struct rfkill_event
broke systemd in *two* ways:
- It used "sizeof(struct rfkill_event)" to read the event, but
then complained if it actually got something != 8, this broke
it on new kernels (that include the updated API);
- It used sizeof(struct rfkill_event) to write a command, but
didn't implement the intended expansion protocol where the
kernel returns only how many bytes it accepted, and errored
out due to the unexpected smaller size on kernels that didn't
include the updated API.
Even though systemd has now been fixed, that fix may not be always
deployed, and other applications could potentially have similar
issues.
As such, in the interest of avoiding regressions, revert the
default API "struct rfkill_event" back to the original size.
Instead, add a new "struct rfkill_event_ext" that extends it by
the new field, and even more clearly document that applications
should be prepared for extensions in two ways:
* write might only accept fewer bytes on older kernels, and
will return how many to let userspace know which data may
have been ignored;
* read might return anything between 8 (the original size) and
whatever size the application sized its buffer at, indicating
how much event data was supported by the kernel.
Perhaps that will help avoid such issues in the future and we
won't have to come up with another version of the struct if we
ever need to extend it again.
Applications that want to take advantage of the new field will
have to be modified to use struct rfkill_event_ext instead now,
which comes with the danger of them having already been updated
to use it from 'struct rfkill_event', but I found no evidence
of that, and it's still relatively new.
Cc: stable@vger.kernel.org # 5.11
Reported-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM/Clang v12.0.0-r4 (x86-64)
Link: https://lore.kernel.org/r/20210319232510.f1a139cfdd9c.Ic5c7c9d1d28972059e132ea653a21a427c326678@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix remaining issues with kdoc in the ethtool headers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a note on expected handling of reserved fields,
and references to all kdocs. This fixes a bunch
of kdoc warnings.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extended link state structures and enums use kdoc headers
but then do not describe any of the members.
Convert to normal comments.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'block-5.12-2021-04-02' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Remove comment that never came to fruition in 22 years of development
(Christoph)
- Remove unused request flag (Christoph)
- Fix for null_blk fake timeout handling (Damien)
- Fix for IOCB_NOWAIT being ignored for O_DIRECT on raw bdevs (Pavel)
- Error propagation fix for multiple split bios (Yufen)
* tag 'block-5.12-2021-04-02' of git://git.kernel.dk/linux-block:
block: remove the unused RQF_ALLOCED flag
block: update a few comments in uapi/linux/blkpg.h
block: don't ignore REQ_NOWAIT for direct IO
null_blk: fix command timeout completion handling
block: only update parent bi_status when bio fail
The big top of the file comment talk about grand plans that never
happened, so remove them to not confuse the readers. Also mark the
devname and volname fields as ignored as they were never used by the
kernel.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In commit ea7800565a12 ("can: add optional DLC element to Classical
CAN frame structure") the struct can_frame::can_dlc was put into an
anonymous union with another u8 variable.
For various reasons some members in struct can_frame and canfd_frame
including the first 8 byes of data are expected to have the same
memory layout. This is enforced by a BUILD_BUG_ON check in af_can.c.
Since the above mentioned commit this check fails on ARM kernels
compiled with the ARM OABI (which means CONFIG_AEABI not set). In this
case -mabi=apcs-gnu is passed to the compiler, which leads to a
structure size boundary of 32, instead of 8 compared to CONFIG_AEABI
enabled. This means the the union in struct can_frame takes 4 bytes
instead of the expected 1.
Rong Chen illustrates the problem with pahole in the ARM OABI case:
| struct can_frame {
| canid_t can_id; /* 0 4 */
| union {
| __u8 len; /* 4 1 */
| __u8 can_dlc; /* 4 1 */
| }; /* 4 4 */
| __u8 __pad; /* 8 1 */
| __u8 __res0; /* 9 1 */
| __u8 len8_dlc; /* 10 1 */
|
| /* XXX 5 bytes hole, try to pack */
|
| __u8 data[8]
| __attribute__((__aligned__(8))); /* 16 8 */
|
| /* size: 24, cachelines: 1, members: 6 */
| /* sum members: 19, holes: 1, sum holes: 5 */
| /* forced alignments: 1, forced holes: 1, sum forced holes: 5 */
| /* last cacheline: 24 bytes */
| } __attribute__((__aligned__(8)));
Marking the anonymous union as __attribute__((packed)) fixes the
BUILD_BUG_ON problem on these compilers.
Fixes: ea7800565a12 ("can: add optional DLC element to Classical CAN frame structure")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Rong Chen <rong.a.chen@intel.com>
Link: https://lore.kernel.org/linux-can/2c82ec23-3551-61b5-1bd8-178c3407ee83@hartkopp.net/
Link: https://lore.kernel.org/r/20210325125850.1620-3-socketcan@hartkopp.net
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Big set in here from Alexandru Ardelean enabling multiple buffer support.
This includes providing a new directory per buffer that combines
what was previously in buffer/ and scan_elements/. Old interfaces still
in place for compatiblity.
Note immuatable branch for scmi patches to allow for some significant
rework going on in that subsystem. Merge required updating to reflect
some changes in IIO.
Late rebase to fix some wrong fixes tags due to some earlier rebases
made necessary by messing up the immutable branch.
IIO New Device Support
* adi,ad5686
- Add info to support AD5673R and AD5677R
* bosch,bmi088
- New driver supporting this accelerometer + gyroscope
* cros_ec_mkbp
- New driver for this proximity sensor that exposes a 'front'
sensor. Very simple switch like device, but driver allows it
to share interface with more sophisticated proximity sensors.
* iio_scmi
- New driver to support ARM SCMI protocol to expose underlying
accelerometers and gyroscopes via this firmware interface.
* st,st_magn
- Add ID for IISMDC magnetometer.
* ti,ads131e0
- New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs
Counter New Device Support
* IRQ or GPIO based counter
- New driver for a conceptually simple counter that uses interrupts
to perform the count.
Features
* core
- Dual buffer supprt including:
Various helpers to centralize handling of bufferer related elements.
Document existing and new IOCTLs
Register the IIO chrdev only if it can actually be used for anything.
Rework attribute group creation in the core (lots of patches)
Merge buffer/ and scan_elements/ entries into one list + maintain
backwards compatible set.
Introduce the internal logic and IOCTL to allow multiple buffers
+ access to an anon FD per buffer to actually read from it.
Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
Update ABI docs.
A few follow up fixes, unsuprising as this was a huge bit of rework.
- Move common case setting of trig->parent to the core.
- Provide an iio_read_channel_processed_scale() to avoid loss of
precision from iio_read_channel_processed() then applying integer
scale. Use it in ntc_thermistor driver in hwmon.
- Allow drivers to specify labels from elsewhere than DT. Use it for
bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
- Document label usage for proximity and accelerometer sensors.
- Some local variable renames for consistency
tools
- Add -a parameter to iio_event_monitor to allow autoenabling of events.
* acpi_als
- Add trigger support for devices that don't support notification method.
* adi,ad7124
- Allow more than 8 channels. This is a complex little device, but is
capable of supporting up to 16 channels if the share certain
configuration settings.
* hrtimer-trigger
- Support sampling frequency below 1Hz.
* mediatek,mt8195-auxadc
- Add compatible to binding docs (always also includes mt8173)
* st,stm32-adc
- Enable timetamps when not using DMA.
* vishay,vcnl3020
- Sampling frequency control.
Cleanup and minor fixes:
* treewide
- Use some getter and setter functions instead of opencoding.
- Set of fixes for pointless casts in various drivers.
- Avoid wrong kernel-doc marking on comment blocks.
- Fix various other minor kernel-doc issues shown by W=1
* core
- Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
- Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
- Add unit tests for iio_format_value()
* docs
- Fix formatting/typos in iio_configfs.rst and buffers.rst
- Add documentation of index in buffers.rst
- Fix scan element description
- Avoid some issues with HTML generation from ABI docs by moving
duplicated defintions to more generic files.
- Drop reference to long dead mailing list.
* 104-quad
- Remove left over deprecated IIO counter ABI.
* adi,adi-axi-adc
- Fix wrong bit of docs.
* adi,ad5791
- Typos
* adi,ad9834
- Switch to device managed functions in probe.
* adi,adis*
- Add and use helpers for locking to reduced duplication.
* adi,adis16480
- Fix calculation of sampling frequency when using pulse per second input.
* adi,adis16475
- Calculate the IMU scaled internal sampling rate and runtime depending
on sysfs based configuration rather than getting from DT. Drop now
unnecessary property from DT bindings doc.
* cros_ec
- Fix result of a series of recent changes that means extended buffer
attributes turn up in the wrong place. Too complex to revert the
various patches unfortunately so this is a bit messy.
* fsl,mma3452
- Indentation cleanup.
* hid-sensors
- Size of storage needs to increase for some parts when using quaternions.
- Move the get sensistivity attribute to hid-sensors-common to reduce
duplication. Enable it for more device types.
- Correctly handle relative sensitivity if reported that way including
documenting the new ABI.
* maxim,max517
- Use device managed functions in probe.
* mediatek,mt6360-adc
- Use asm/unaligned.h instead of directly including
unaligned/be_byteshift.h
* novuton,npcm-adc
- Local lock instead of missusing mlock.
* semtech,sx9500
- Typos
* st,sensor
- typo fix
* st,spear-adc
- Local lock instead of missusing mlock.
* st,stm32-adc
- Long standing HAS_IOMEM dependency fix.
* st,stm32-counter
- Remove left over deprecated IIO counter ABI.
* ti,palmas-adc
- Local lock instead of missusing mlock.
* ti,tmp007
- Switch to device managed functions in probe.
Other
* MAINTAINERS
- Move Peter Meerwald-Stadler to Credits at his request
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Merge tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
1st set of IIO/counter device support, features and cleanup in the 5.13 cycle
Big set in here from Alexandru Ardelean enabling multiple buffer support.
This includes providing a new directory per buffer that combines
what was previously in buffer/ and scan_elements/. Old interfaces still
in place for compatiblity.
Note immuatable branch for scmi patches to allow for some significant
rework going on in that subsystem. Merge required updating to reflect
some changes in IIO.
Late rebase to fix some wrong fixes tags due to some earlier rebases
made necessary by messing up the immutable branch.
IIO New Device Support
* adi,ad5686
- Add info to support AD5673R and AD5677R
* bosch,bmi088
- New driver supporting this accelerometer + gyroscope
* cros_ec_mkbp
- New driver for this proximity sensor that exposes a 'front'
sensor. Very simple switch like device, but driver allows it
to share interface with more sophisticated proximity sensors.
* iio_scmi
- New driver to support ARM SCMI protocol to expose underlying
accelerometers and gyroscopes via this firmware interface.
* st,st_magn
- Add ID for IISMDC magnetometer.
* ti,ads131e0
- New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs
Counter New Device Support
* IRQ or GPIO based counter
- New driver for a conceptually simple counter that uses interrupts
to perform the count.
Features
* core
- Dual buffer supprt including:
Various helpers to centralize handling of bufferer related elements.
Document existing and new IOCTLs
Register the IIO chrdev only if it can actually be used for anything.
Rework attribute group creation in the core (lots of patches)
Merge buffer/ and scan_elements/ entries into one list + maintain
backwards compatible set.
Introduce the internal logic and IOCTL to allow multiple buffers
+ access to an anon FD per buffer to actually read from it.
Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
Update ABI docs.
A few follow up fixes, unsuprising as this was a huge bit of rework.
- Move common case setting of trig->parent to the core.
- Provide an iio_read_channel_processed_scale() to avoid loss of
precision from iio_read_channel_processed() then applying integer
scale. Use it in ntc_thermistor driver in hwmon.
- Allow drivers to specify labels from elsewhere than DT. Use it for
bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
- Document label usage for proximity and accelerometer sensors.
- Some local variable renames for consistency
tools
- Add -a parameter to iio_event_monitor to allow autoenabling of events.
* acpi_als
- Add trigger support for devices that don't support notification method.
* adi,ad7124
- Allow more than 8 channels. This is a complex little device, but is
capable of supporting up to 16 channels if the share certain
configuration settings.
* hrtimer-trigger
- Support sampling frequency below 1Hz.
* mediatek,mt8195-auxadc
- Add compatible to binding docs (always also includes mt8173)
* st,stm32-adc
- Enable timetamps when not using DMA.
* vishay,vcnl3020
- Sampling frequency control.
Cleanup and minor fixes:
* treewide
- Use some getter and setter functions instead of opencoding.
- Set of fixes for pointless casts in various drivers.
- Avoid wrong kernel-doc marking on comment blocks.
- Fix various other minor kernel-doc issues shown by W=1
* core
- Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
- Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
- Add unit tests for iio_format_value()
* docs
- Fix formatting/typos in iio_configfs.rst and buffers.rst
- Add documentation of index in buffers.rst
- Fix scan element description
- Avoid some issues with HTML generation from ABI docs by moving
duplicated defintions to more generic files.
- Drop reference to long dead mailing list.
* 104-quad
- Remove left over deprecated IIO counter ABI.
* adi,adi-axi-adc
- Fix wrong bit of docs.
* adi,ad5791
- Typos
* adi,ad9834
- Switch to device managed functions in probe.
* adi,adis*
- Add and use helpers for locking to reduced duplication.
* adi,adis16480
- Fix calculation of sampling frequency when using pulse per second input.
* adi,adis16475
- Calculate the IMU scaled internal sampling rate and runtime depending
on sysfs based configuration rather than getting from DT. Drop now
unnecessary property from DT bindings doc.
* cros_ec
- Fix result of a series of recent changes that means extended buffer
attributes turn up in the wrong place. Too complex to revert the
various patches unfortunately so this is a bit messy.
* fsl,mma3452
- Indentation cleanup.
* hid-sensors
- Size of storage needs to increase for some parts when using quaternions.
- Move the get sensistivity attribute to hid-sensors-common to reduce
duplication. Enable it for more device types.
- Correctly handle relative sensitivity if reported that way including
documenting the new ABI.
* maxim,max517
- Use device managed functions in probe.
* mediatek,mt6360-adc
- Use asm/unaligned.h instead of directly including
unaligned/be_byteshift.h
* novuton,npcm-adc
- Local lock instead of missusing mlock.
* semtech,sx9500
- Typos
* st,sensor
- typo fix
* st,spear-adc
- Local lock instead of missusing mlock.
* st,stm32-adc
- Long standing HAS_IOMEM dependency fix.
* st,stm32-counter
- Remove left over deprecated IIO counter ABI.
* ti,palmas-adc
- Local lock instead of missusing mlock.
* ti,tmp007
- Switch to device managed functions in probe.
Other
* MAINTAINERS
- Move Peter Meerwald-Stadler to Credits at his request
* tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (119 commits)
iio: acpi_als: Add trigger support
iio: acpi_als: Add local variable dev in probe
iio: acpi_als: Add timestamp channel
iio: adc: ad7292: Modify the bool initialization assignment
iio: cros: unify hw fifo attributes without API changes
iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant
iio: event_monitor: Enable events before monitoring
dt-bindings: iio: adc: Add compatible for Mediatek MT8195
iio:magnetometer: Add Support for ST IIS2MDC
dt-bindings: iio: st,st-sensors add IIS2MDC.
staging: iio: ad9832: kernel-doc fixes
iio:dac:max517.c: Use devm_iio_device_register()
iio:cros_ec_sensors: Fix a wrong function name in kernel doc.
iio: buffer: kfifo_buf: kernel-doc, typo in function name.
iio: accel: sca3000: kernel-doc fixes. Missing - and wrong function names.
iio: adc: adi-axi-adc: Drop false marking for kernel-doc
iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name
iio: dac: ad5504: fix wrong part number in kernel-doc structure name.
iio: dac: ad5770r: kernel-doc fix case of letter R wrong in structure name
iio: adc: ti-adc084s021: kernel-doc fixes, missing function names
...
Kunpeng930 supports doorbell isolation to ensure that each queue
has an independent doorbell address space.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Pull networking fixes from David Miller:
"Various fixes, all over:
1) Fix overflow in ptp_qoriq_adjfine(), from Yangbo Lu.
2) Always store the rx queue mapping in veth, from Maciej
Fijalkowski.
3) Don't allow vmlinux btf in map_create, from Alexei Starovoitov.
4) Fix memory leak in octeontx2-af from Colin Ian King.
5) Use kvalloc in bpf x86 JIT for storing jit'd addresses, from
Yonghong Song.
6) Fix tx ptp stats in mlx5, from Aya Levin.
7) Check correct ip version in tun decap, fropm Roi Dayan.
8) Fix rate calculation in mlx5 E-Switch code, from arav Pandit.
9) Work item memork leak in mlx5, from Shay Drory.
10) Fix ip6ip6 tunnel crash with bpf, from Daniel Borkmann.
11) Lack of preemptrion awareness in macvlan, from Eric Dumazet.
12) Fix data race in pxa168_eth, from Pavel Andrianov.
13) Range validate stab in red_check_params(), from Eric Dumazet.
14) Inherit vlan filtering setting properly in b53 driver, from
Florian Fainelli.
15) Fix rtnl locking in igc driver, from Sasha Neftin.
16) Pause handling fixes in igc driver, from Muhammad Husaini
Zulkifli.
17) Missing rtnl locking in e1000_reset_task, from Vitaly Lifshits.
18) Use after free in qlcnic, from Lv Yunlong.
19) fix crash in fritzpci mISDN, from Tong Zhang.
20) Premature rx buffer reuse in igb, from Li RongQing.
21) Missing termination of ip[a driver message handler arrays, from
Alex Elder.
22) Fix race between "x25_close" and "x25_xmit"/"x25_rx" in hdlc_x25
driver, from Xie He.
23) Use after free in c_can_pci_remove(), from Tong Zhang.
24) Uninitialized variable use in nl80211, from Jarod Wilson.
25) Off by one size calc in bpf verifier, from Piotr Krysiuk.
26) Use delayed work instead of deferrable for flowtable GC, from
Yinjun Zhang.
27) Fix infinite loop in NPC unmap of octeontx2 driver, from
Hariprasad Kelam.
28) Fix being unable to change MTU of dwmac-sun8i devices due to lack
of fifo sizes, from Corentin Labbe.
29) DMA use after free in r8169 with WoL, fom Heiner Kallweit.
30) Mismatched prototypes in isdn-capi, from Arnd Bergmann.
31) Fix psample UAPI breakage, from Ido Schimmel"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (171 commits)
psample: Fix user API breakage
math: Export mul_u64_u64_div_u64
ch_ktls: fix enum-conversion warning
octeontx2-af: Fix memory leak of object buf
ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation
net: bridge: don't notify switchdev for local FDB addresses
net/sched: act_ct: clear post_ct if doing ct_clear
net: dsa: don't assign an error value to tag_ops
isdn: capi: fix mismatched prototypes
net/mlx5: SF, do not use ecpu bit for vhca state processing
net/mlx5e: Fix division by 0 in mlx5e_select_queue
net/mlx5e: Fix error path for ethtool set-priv-flag
net/mlx5e: Offload tuple rewrite for non-CT flows
net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP
net/mlx5: Add back multicast stats for uplink representor
net: ipconfig: ic_dev can be NULL in ic_close_devs
MAINTAINERS: Combine "QLOGIC QLGE 10Gb ETHERNET DRIVER" sections into one
docs: networking: Fix a typo
r8169: fix DMA being used after buffer free if WoL is enabled
net: ipa: fix init header command validation
...
Cited commit added a new attribute before the existing group reference
count attribute, thereby changing its value and breaking existing
applications on new kernels.
Before:
# psample -l
libpsample ERROR psample_group_foreach: failed to recv message: Operation not supported
After:
# psample -l
Group Num Refcount Group Seq
1 1 0
Fix by restoring the value of the old attribute and remove the
misleading comments from the enumerator to avoid future bugs.
Cc: stable@vger.kernel.org
Fixes: d8bed686ab96 ("net: psample: Add tunnel support")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reported-by: Adiel Bidani <adielb@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
User space needs to know if binder transactions occurred to frozen
processes. Introduce a new BINDER_GET_FROZEN ioctl and keep track of
transactions occurring to frozen proceses.
Signed-off-by: Marco Ballesio <balejs@google.com>
Signed-off-by: Li Li <dualli@google.com>
Acked-by: Todd Kjos <tkjos@google.com>
Link: https://lore.kernel.org/r/20210316011630.1121213-4-dualli@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Frozen tasks can't process binder transactions, so a way is required to
inform transmitting ends of communication failures due to the frozen
state of their receiving counterparts. Additionally, races are possible
between transitions to frozen state and binder transactions enqueued to
a specific process.
Implement BINDER_FREEZE ioctl for user space to inform the binder driver
about the intention to freeze or unfreeze a process. When the ioctl is
called, block the caller until any pending binder transactions toward
the target process are flushed. Return an error to transactions to
processes marked as frozen.
Co-developed-by: Todd Kjos <tkjos@google.com>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Marco Ballesio <balejs@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Li Li <dualli@google.com>
Link: https://lore.kernel.org/r/20210316011630.1121213-2-dualli@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the license boilerplate (containing an obsolete address), because
we now have the SPDX header.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20210322141748.1062733-1-geert@linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Microsoft Surface Book series devices consist of a so-called
clipboard part (containing the CPU, touchscreen, and primary battery)
and a base part (containing keyboard, secondary battery, and optional
discrete GPU). These parts can be separated, i.e. the clipboard can be
detached and used as tablet.
This detachment process is initiated by pressing a button. On the
Surface Book 2 and 3 (targeted with this commit), the Surface Aggregator
Module (i.e. the embedded controller on those devices) attempts to send
a notification to any listening client driver and waits for further
instructions (i.e. whether the detachment process should continue or be
aborted). If it does not receive a response in a certain time-frame, the
detachment process (by default) continues and the clipboard can be
physically separated. In other words, (by default and) without a driver,
the detachment process takes about 10 seconds to complete.
This commit introduces a driver for this detachment system (called DTX).
This driver allows a user-space daemon to control and influence the
detachment behavior. Specifically, it forwards any detachment requests
to user-space, allows user-space to make such requests itself, and
allows handling of those requests. Requests can be handled by either
aborting, continuing/allowing, or delaying (i.e. resetting the timeout
via a heartbeat commend). The user-space API is implemented via the
/dev/surface/dtx miscdevice.
In addition, user-space can change the default behavior on timeout from
allowing detachment to disallowing it, which is useful if the (optional)
discrete GPU is in use.
Furthermore, this driver allows user-space to receive notifications
about the state of the base, specifically when it is physically removed
(as opposed to detachment requested), in what manner it is connected
(i.e. in reverse-/tent-/studio- or laptop-mode), and what type of base
is connected. Based on this information, the driver also provides a
simple tablet-mode switch (aliasing all modes without keyboard access,
i.e. tablet-mode and studio-mode to its reported tablet-mode).
An implementation of such a user-space daemon, allowing configuration of
detachment behavior via scripts (e.g. safely unmounting USB devices
connected to the base before continuing) can be found at [1].
[1]: https://github.com/linux-surface/surface-dtx-daemon
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210308184819.437438-2-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Merge tag 'fuse-fixes-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"Fix a deadlock and a couple of other bugs"
* tag 'fuse-fixes-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: 32-bit user space ioctl compat for fuse device
virtiofs: Fail dax mount if device does not support it
fuse: fix live lock in fuse_iget()
With a 64-bit kernel build the FUSE device cannot handle ioctl requests
coming from 32-bit user space. This is due to the ioctl command
translation that generates different command identifiers that thus cannot
be used for direct comparisons without proper manipulation.
Explicitly extract type and number from the ioctl command to enable 32-bit
user space compatibility on 64-bit kernel builds.
Signed-off-by: Alessio Balsini <balsini@android.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Resolves a merge issue with:
drivers/tty/hvc/hvcs.c
and we want the tty/serial fixes from 5.12-rc3 in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With this change, an ioctl() call is added to open a character device for a
buffer. The ioctl() number is 'i' 0x91, which follows the
IIO_GET_EVENT_FD_IOCTL ioctl.
The ioctl() will return an FD for the requested buffer index. The indexes
are the same from the /sys/iio/devices/iio:deviceX/bufferY (i.e. the Y
variable).
Since there doesn't seem to be a sane way to return the FD for buffer0 to
be the same FD for the /dev/iio:deviceX, this ioctl() will return another
FD for buffer0 (or the first buffer). This duplicate FD will be able to
access the same buffer object (for buffer0) as accessing directly the
/dev/iio:deviceX chardev.
Also, there is no IIO_BUFFER_GET_BUFFER_COUNT ioctl() implemented, as the
index for each buffer (and the count) can be deduced from the
'/sys/bus/iio/devices/iio:deviceX/bufferY' folders (i.e the number of
bufferY folders).
Used following C code to test this:
-------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h"
#include <errno.h>
#define IIO_BUFFER_GET_FD_IOCTL _IOWR('i', 0x91, int)
int main(int argc, char *argv[])
{
int fd;
int fd1;
int ret;
if ((fd = open("/dev/iio:device0", O_RDWR))<0) {
fprintf(stderr, "Error open() %d errno %d\n",fd, errno);
return -1;
}
fprintf(stderr, "Using FD %d\n", fd);
fd1 = atoi(argv[1]);
ret = ioctl(fd, IIO_BUFFER_GET_FD_IOCTL, &fd1);
if (ret < 0) {
fprintf(stderr, "Error for buffer %d ioctl() %d errno %d\n", fd1, ret, errno);
close(fd);
return -1;
}
fprintf(stderr, "Got FD %d\n", fd1);
close(fd1);
close(fd);
return 0;
}
-------------------------------------------------------------------
Results are:
-------------------------------------------------------------------
# ./test 0
Using FD 3
Got FD 4
# ./test 1
Using FD 3
Got FD 4
# ./test 2
Using FD 3
Got FD 4
# ./test 3
Using FD 3
Got FD 4
# ls /sys/bus/iio/devices/iio\:device0
buffer buffer0 buffer1 buffer2 buffer3 dev
in_voltage_sampling_frequency in_voltage_scale
in_voltage_scale_available
name of_node power scan_elements subsystem uevent
-------------------------------------------------------------------
iio:device0 has some fake kfifo buffers attached to an IIO device.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210215104043.91251-21-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Daniel Borkmann says:
====================
pull-request: bpf 2021-03-10
The following pull-request contains BPF updates for your *net* tree.
We've added 8 non-merge commits during the last 5 day(s) which contain
a total of 11 files changed, 136 insertions(+), 17 deletions(-).
The main changes are:
1) Reject bogus use of vmlinux BTF as map/prog creation BTF, from Alexei Starovoitov.
2) Fix allocation failure splat in x86 JIT for large progs. Also fix overwriting
percpu cgroup storage from tracing programs when nested, from Yonghong Song.
3) Fix rx queue retrieval in XDP for multi-queue veth, from Maciej Fijalkowski.
4) Fix bpf_check_mtu() helper API before freeze to have mtu_len as custom skb/xdp
L3 input length, from Jesper Dangaard Brouer.
5) Fix inode_storage's lookup_elem return value upon having bad fd, from Tal Lossos.
6) Fix bpftool and libbpf cross-build on MacOS, from Georgi Valkov.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The Cyclades driver was orphaned by commit d459883e6c54 (MAINTAINERS:
remove two dead e-mail) 13 years ago. Noone stepped up to take care of
them and to fix all the issues the driver has.
On the top of that, there is no way to obtain the firmware for Z cards
from the vendor as cyclades.com ceased to exist.
So it's time to drop the driver with all its traces.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210302062214.29627-5-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull networking fixes from David Miller:
1) Fix transmissions in dynamic SMPS mode in ath9k, from Felix Fietkau.
2) TX skb error handling fix in mt76 driver, also from Felix.
3) Fix BPF_FETCH atomic in x86 JIT, from Brendan Jackman.
4) Avoid double free of percpu pointers when freeing a cloned bpf prog.
From Cong Wang.
5) Use correct printf format for dma_addr_t in ath11k, from Geert
Uytterhoeven.
6) Fix resolve_btfids build with older toolchains, from Kun-Chuan
Hsieh.
7) Don't report truncated frames to mac80211 in mt76 driver, from
Lorenzop Bianconi.
8) Fix watcdog timeout on suspend/resume of stmmac, from Joakim Zhang.
9) mscc ocelot needs NET_DEVLINK selct in Kconfig, from Arnd Bergmann.
10) Fix sign comparison bug in TCP_ZEROCOPY_RECEIVE getsockopt(), from
Arjun Roy.
11) Ignore routes with deleted nexthop object in mlxsw, from Ido
Schimmel.
12) Need to undo tcp early demux lookup sometimes in nf_nat, from
Florian Westphal.
13) Fix gro aggregation for udp encaps with zero csum, from Daniel
Borkmann.
14) Make sure to always use imp*_ndo_send when necessaey, from Jason A.
Donenfeld.
15) Fix TRSCER masks in sh_eth driver from Sergey Shtylyov.
16) prevent overly huge skb allocationsd in qrtr, from Pavel Skripkin.
17) Prevent rx ring copnsumer index loss of sync in enetc, from Vladimir
Oltean.
18) Make sure textsearch copntrol block is large enough, from Wilem de
Bruijn.
19) Revert MAC changes to r8152 leading to instability, from Hates Wang.
20) Advance iov in 9p even for empty reads, from Jissheng Zhang.
21) Double hook unregister in nftables, from PabloNeira Ayuso.
22) Fix memleak in ixgbe, fropm Dinghao Liu.
23) Avoid dups in pkt scheduler class dumps, from Maximilian Heyne.
24) Various mptcp fixes from Florian Westphal, Paolo Abeni, and Geliang
Tang.
25) Fix DOI refcount bugs in cipso, from Paul Moore.
26) One too many irqsave in ibmvnic, from Junlin Yang.
27) Fix infinite loop with MPLS gso segmenting via virtio_net, from
Balazs Nemeth.
* git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net: (164 commits)
s390/qeth: fix notification for pending buffers during teardown
s390/qeth: schedule TX NAPI on QAOB completion
s390/qeth: improve completion of pending TX buffers
s390/qeth: fix memory leak after failed TX Buffer allocation
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
net: check if protocol extracted by virtio_net_hdr_set_proto is correct
net: dsa: xrs700x: check if partner is same as port in hsr join
net: lapbether: Remove netif_start_queue / netif_stop_queue
atm: idt77252: fix null-ptr-dereference
atm: uPD98402: fix incorrect allocation
atm: fix a typo in the struct description
net: qrtr: fix error return code of qrtr_sendmsg()
mptcp: fix length of ADD_ADDR with port sub-option
net: bonding: fix error return code of bond_neigh_init()
net: enetc: allow hardware timestamping on TX queues with tc-etf enabled
net: enetc: set MAC RX FIFO to recommended value
net: davicom: Use platform_get_irq_optional()
net: davicom: Fix regulator not turned off on driver removal
net: davicom: Fix regulator not turned off on failed probe
net: dsa: fix switchdev objects on bridge master mistakenly being applied on ports
...
The FIB lookup example[1] show how the IP-header field tot_len
(iph->tot_len) is used as input to perform the MTU check.
This patch extend the BPF-helper bpf_check_mtu() with the same ability
to provide the length as user parameter input, via mtu_len parameter.
This still needs to be done before the bpf_check_mtu() helper API
becomes frozen.
[1] samples/bpf/xdp_fwd_kern.c
Fixes: 34b2021cc616 ("bpf: Add BPF-helper for MTU checking")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/161521555850.3515614.6533850861569774444.stgit@firesoul
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix incorrect enum type definition in nfnetlink_cthelper UAPI,
from Dmitry V. Levin.
2) Remove extra space in deprecated automatic helper assignment
notice, from Klemen Košir.
3) Drop early socket demux socket after NAT mangling, from
Florian Westphal. Add a test to exercise this bug.
4) Fix bogus invalid packet report in the conntrack TCP tracker,
also from Florian.
5) Fix access to xt[NFPROTO_UNSPEC] list with no mutex
in target/match_revfn(), from Vasily Averin.
6) Disallow updates on the table ownership flag.
7) Fix double hook unregistration of tables with owner.
8) Remove bogus check on the table owner in __nft_release_tables().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
* selftests fixes
* Add runstate information to the new Xen support
* Allow compiling out the Xen interface
* 32-bit PAE without EPT bugfix
* NULL pointer dereference bugfix
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
- Doc fixes
- selftests fixes
- Add runstate information to the new Xen support
- Allow compiling out the Xen interface
- 32-bit PAE without EPT bugfix
- NULL pointer dereference bugfix
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Clear the CR4 register on reset
KVM: x86/xen: Add support for vCPU runstate information
KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_info
selftests: kvm: Mmap the entire vcpu mmap area
KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1
KVM: x86: allow compiling out the Xen hypercall interface
KVM: xen: flush deferred static key before checking it
KVM: x86/mmu: Set SPTE_AD_WRPROT_ONLY_MASK if and only if PML is enabled
KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref
KVM: x86: remove misplaced comment on active_mmu_pages
KVM: Documentation: rectify rst markup in kvm_run->flags
Documentation: kvm: fix messy conversion from .txt to .rst
Commit 5ee759cda51b ("l2tp: use standard API for warning log messages")
changed a number of warnings about invalid packets in the receive path
so that they are always shown, instead of only when a special L2TP debug
flag is set. Even with rate limiting these warnings can easily cause
significant log spam - potentially triggered by a malicious party
sending invalid packets on purpose.
In addition these warnings were noticed by projects like Tunneldigger [1],
which uses L2TP for its data path, but implements its own control
protocol (which is sufficiently different from L2TP data packets that it
would always be passed up to userspace even with future extensions of
L2TP).
Some of the warnings were already redundant, as l2tp_stats has a counter
for these packets. This commit adds one additional counter for invalid
packets that are passed up to userspace. Packets with unknown session are
not counted as invalid, as there is nothing wrong with the format of
these packets.
With the additional counter, all of these messages are either redundant
or benign, so we reduce them to pr_debug_ratelimited().
[1] https://github.com/wlanslovenija/tunneldigger/issues/160
Fixes: 5ee759cda51b ("l2tp: use standard API for warning log messages")
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is how Xen guests do steal time accounting. The hypervisor records
the amount of time spent in each of running/runnable/blocked/offline
states.
In the Xen accounting, a vCPU is still in state RUNSTATE_running while
in Xen for a hypercall or I/O trap, etc. Only if Xen explicitly schedules
does the state become RUNSTATE_blocked. In KVM this means that even when
the vCPU exits the kvm_run loop, the state remains RUNSTATE_running.
The VMM can explicitly set the vCPU to RUNSTATE_blocked by using the
KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT attribute, and can also use
KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST to retrospectively add a given
amount of time to the blocked state and subtract it from the running
state.
The state_entry_time corresponds to get_kvmclock_ns() at the time the
vCPU entered the current state, and the total times of all four states
should always add up to state_entry_time.
Co-developed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20210301125309.874953-2-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Apparently, <linux/netfilter/nfnetlink_cthelper.h> and
<linux/netfilter/nfnetlink_acct.h> could not be included into the same
compilation unit because of a cut-and-paste typo in the former header.
Fixes: 12f7a505331e6 ("netfilter: add user-space connection tracking helper infrastructure")
Cc: <stable@vger.kernel.org> # v3.6
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds
Serge E. Hallyn
Peter Collingbourne
Dave Jiang
Greg Kroah-Hartman
Hang Lu
Johan Hovold
Oded Gabbay
Alon Mizrahi
Sagiv Ozeri
Ofir Bitton
Johannes Berg
Jakub Kicinski
Christoph Hellwig
Marc Kleine-Budde
Weili Qian
Ido Schimmel
Marco Ballesio
Geert Uytterhoeven
Maximilian Luz
Alessio Balsini
Alexandru Ardelean
David S. Miller
Jiri Slaby
Jesper Dangaard Brouer
Matthias Schiffer
David Woodhouse
