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commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of
kernel internals to determine if partition scanning is enabled for a
given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+
Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/
Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de
[axboe: add links and commit message from Keith]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8076fcde016c9c0e0660543e67bff86cb48a7c9c upstream.
RFDS is a CPU vulnerability that may allow userspace to infer kernel
stale data previously used in floating point registers, vector registers
and integer registers. RFDS only affects certain Intel Atom processors.
Intel released a microcode update that uses VERW instruction to clear
the affected CPU buffers. Unlike MDS, none of the affected cores support
SMT.
Add RFDS bug infrastructure and enable the VERW based mitigation by
default, that clears the affected buffers just before exiting to
userspace. Also add sysfs reporting and cmdline parameter
"reg_file_data_sampling" to control the mitigation.
For details see:
Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5b3fbd61b9d1f4ed2db95aaf03f9adae0373784d ]
The Documentation/ABI/testing/sysfs-class-net-statistics documentation
is pointing to the wrong path for the interface. Documentation is
pointing to /sys/class/<iface>, instead of /sys/class/net/<iface>.
Fix it by adding the `net/` directory before the interface.
Fixes: 6044f9700645 ("net: sysfs: document /sys/class/net/statistics/*")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ae3f4b44641dfff969604735a0dcbf931f383285 ]
The documentation is pointing to the wrong path for the interface.
Documentation is pointing to /sys/class/<iface>, instead of
/sys/class/net/<iface>.
Fix it by adding the `net/` directory before the interface.
Fixes: 1a02ef76acfa ("net: sysfs: add documentation entries for /sys/class/<iface>/queues")
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20240131102150.728960-2-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4 upstream.
Fix buffer overflow in trans_stat_show().
Convert simple snprintf to the more secure scnprintf with size of
PAGE_SIZE.
Add condition checking if we are exceeding PAGE_SIZE and exit early from
loop. Also add at the end a warning that we exceeded PAGE_SIZE and that
stats is disabled.
Return -EFBIG in the case where we don't have enough space to write the
full transition table.
Also document in the ABI that this function can return -EFBIG error.
Link: https://lore.kernel.org/all/20231024183016.14648-2-ansuelsmth@gmail.com/
Cc: stable@vger.kernel.org
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218041
Fixes: e552bbaf5b98 ("PM / devfreq: Add sysfs node for representing frequency transition information.")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7269cba53d906cf257c139d3b3a53ad272176bca ]
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: 5f178bb71e3a ("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>
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commit 8f2244c9af245ff72185c0473827125ee6b2d1a5 upstream.
The commit c7d80059b086 ("leds: class: Store the color index in struct
led_classdev") introduced a new sysfs entry "color" that is commonly
created for the led classdev. Unfortunately, this conflicts with the
"color" sysfs entry of already existing drivers such as Logitech HID
or System76 ACPI drivers. The driver probe fails due to the conflict,
hence it leads to a severe regression with the missing keyboard, for
example.
This patch reverts partially the change in the commit above for
removing the led class color sysfs entries again for addressing the
regressions. The newly introduced led_classdev.color field is kept as
it's already used by other driver.
Fixes: c7d80059b086 ("leds: class: Store the color index in struct led_classdev")
Reported-by: Johannes Penßel <johannes.penssel@gmail.com>
Closes: https://lore.kernel.org/r/b5646db3-acff-45aa-baef-df3f660486fb@gmail.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218045
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218155
Link: https://bugzilla.suse.com/show_bug.cgi?id=1217172
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231121162359.9332-1-tiwai@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 37b14f2dfa791fd485dbc536f8d1ffe8c6990290 ]
QAT GEN4 devices support chained compression operations. These
allow, with a single request to firmware, to hash then compress
data.
Extend the configuration to enable such mode. The cfg_services
operations in sysfs are extended to allow the string "dcc". When
selected, the driver downloads to the device both the symmetric
crypto and the compression firmware images and sends an admin message
to firmware which enables `chained` operations.
In addition, it sets the device's capabilities as the combination
of compression and symmetric crypto capabilities, while excluding
the ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC bit to indicate
that in this mode, symmetric crypto instances are not supported.
When "dcc" is enabled, the device will handle compression requests
as if the "dc" configuration is loaded ("dcc" is a variation of "dc")
and the driver will register the acomp algorithms.
As for the other extended configurations, "dcc" is only available for
qat_4xxx devices and the chaining service will be only accessible from
user space.
Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stable-dep-of: a238487f7965 ("crypto: qat - fix ring to service map for QAT GEN4")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Change the maintainer for the Intel MAX10 BMC Secure Update driver from
Russ Weight to Peter Colberg. Update the ABI documentation contact
information as well.
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Acked-by: Peter Colberg <peter.colberg@intel.com>
Link: https://lore.kernel.org/r/20230928164753.278684-1-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Link: https://lore.kernel.org/r/20231023032857.902699-2-yilun.xu@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update the firmware_loader documentation and corresponding section
in the MAINTAINERs file with a new email address.
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20230929151326.311959-1-russell.h.weight@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"Core Frameworks:
- Add new framework to support Group Multi-Color (GMC) LEDs
- Offer an 'optional' API for non-essential LEDs
- Support obtaining 'max brightness' values from Device Tree
- Provide new led_classdev member 'color' (settable via DT and SYFS)
- Stop TTY Trigger from using the old LED_ON constraints
- Statically allocate leds_class
New Drivers:
- Add support for NXP PCA995x I2C Constant Current LED Driver
New Device Support:
- Add support for Siemens Simatic IPC BX-21 to Simatic IPC
Fix-ups:
- Some dependency / Kconfig tweaking
- Move final probe() functions back over from .probe_new()
- Simplify obtaining resources (memory, device data) using unified
API helpers
- Bunch of Device Tree additions, conversions and adaptions
- Fix trivial styling issues; comments
- Ensure correct includes are present and remove some that are not
required
- Omit the use of redundant casts and if relevant replace with better
ones
- Use purpose-built APIs for various actions; sysfs_emit(),
module_led_trigger()
- Remove a bunch of superfluous locking
Bug Fixes:
- Ensure error codes are correctly propagated back up the call chain
- Fix incorrect error values from being returned (missing '-')
- Ensure get'ed resources are put'ed to prevent leaks
- Use correct class when exporting module resources
- Fixing rounding (or lack there of) issues
- Fix 'always false' LED_COLOR_ID_MULTI BUG() check"
* tag 'leds-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (40 commits)
leds: aw2013: Enable pull-up supply for interrupt and I2C
dt-bindings: leds: Document pull-up supply for interrupt and I2C
dt-bindings: leds: aw2013: Document interrupt
leds: uleds: Use module_misc_device macro to simplify the code
leds: trigger: netdev: Use module_led_trigger macro to simplify the code
dt-bindings: leds: Fix reference to definition of default-state
leds: turris-omnia: Drop unnecessary mutex locking
leds: turris-omnia: Use sysfs_emit() instead of sprintf()
leds: Make leds_class a static const structure
leds: Remove redundant of_match_ptr()
dt-bindings: leds: Add gpio-line-names to PCA9532 GPIO
leds: trigger: tty: Do not use LED_ON/OFF constants, use led_blink_set_oneshot instead
dt-bindings: leds: rohm,bd71828: Drop select:false
leds: Fix BUG_ON check for LED_COLOR_ID_MULTI that is always false
leds: multicolor: Use rounded division when calculating color components
leds: rgb: Add a multicolor LED driver to group monochromatic LEDs
dt-bindings: leds: Add binding for a multicolor group of LEDs
leds: class: Store the color index in struct led_classdev
leds: Provide devm_of_led_get_optional()
leds: pca995x: Fix MODULE_DEVICE_TABLE for OF
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New controller support and updates to drivers.
New support:
- Qualcomm SM6115 and QCM2290 dmaengine support
- at_xdma support for microchip,sam9x7 controller
Updates:
- idxd updates for wq simplification and ats knob updates
- fsl edma updates for v3 support
- Xilinx AXI4-Stream control support
- Yaml conversion for bcm dma binding"
* tag 'dmaengine-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (53 commits)
dmaengine: fsl-edma: integrate v3 support
dt-bindings: fsl-dma: fsl-edma: add edma3 compatible string
dmaengine: fsl-edma: move tcd into struct fsl_dma_chan
dmaengine: fsl-edma: refactor chan_name setup and safety
dmaengine: fsl-edma: move clearing of register interrupt into setup_irq function
dmaengine: fsl-edma: refactor using devm_clk_get_enabled
dmaengine: fsl-edma: simply ATTR_DSIZE and ATTR_SSIZE by using ffs()
dmaengine: fsl-edma: move common IRQ handler to common.c
dmaengine: fsl-edma: Remove enum edma_version
dmaengine: fsl-edma: transition from bool fields to bitmask flags in drvdata
dmaengine: fsl-edma: clean up EXPORT_SYMBOL_GPL in fsl-edma-common.c
dmaengine: fsl-edma: fix build error when arch is s390
dmaengine: idxd: Fix issues with PRS disable sysfs knob
dmaengine: idxd: Allow ATS disable update only for configurable devices
dmaengine: xilinx_dma: Program interrupt delay timeout
dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase
dmaengine: xilinx_dma: Freeup active list based on descriptor completion bit
dmaengine: xilinx_dma: Increase AXI DMA transaction segment count
dmaengine: xilinx_dma: Pass AXI4-Stream control words to dma client
dt-bindings: dmaengine: xilinx_dma: Add xlnx,irq-delay property
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this cycle, we don't have a highlighted feature enhancement, but
mostly have fixed issues mainly in two parts: 1) zoned block device,
and 2) compression support.
For zoned block device, we've tried to improve the power-off recovery
flow as much as possible. For compression, we found some corner cases
caused by wrong compression policy and logics. Other than them, there
were some reverts and stat corrections.
Bug fixes:
- use finish zone command when closing a zone
- check zone type before sending async reset zone command
- fix to assign compress_level for lz4 correctly
- fix error path of f2fs_submit_page_read()
- don't {,de}compress non-full cluster
- send small discard commands during checkpoint back
- flush inode if atomic file is aborted
- correct to account gc/cp stats
And, there are minor bug fixes, avoiding false lockdep warning, and
clean-ups"
* tag 'f2fs-for-6-6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (25 commits)
f2fs: use finish zone command when closing a zone
f2fs: compress: fix to assign compress_level for lz4 correctly
f2fs: fix error path of f2fs_submit_page_read()
f2fs: clean up error handling in sanity_check_{compress_,}inode()
f2fs: avoid false alarm of circular locking
Revert "f2fs: do not issue small discard commands during checkpoint"
f2fs: doc: fix description of max_small_discards
f2fs: should update REQ_TIME for direct write
f2fs: fix to account cp stats correctly
f2fs: fix to account gc stats correctly
f2fs: remove unneeded check condition in __f2fs_setxattr()
f2fs: fix to update i_ctime in __f2fs_setxattr()
Revert "f2fs: fix to do sanity check on extent cache correctly"
f2fs: increase usage of folio_next_index() helper
f2fs: Only lfs mode is allowed with zoned block device feature
f2fs: check zone type before sending async reset zone command
f2fs: compress: don't {,de}compress non-full cluster
f2fs: allow f2fs_ioc_{,de}compress_file to be interrupted
f2fs: don't reopen the main block device in f2fs_scan_devices
f2fs: fix to avoid mmap vs set_compress_option case
...
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr, libsas) and
the usual minor updates and bug fixes but no significant core changes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (116 commits)
scsi: storvsc: Handle additional SRB status values
scsi: libsas: Delete sas_ata_task.retry_count
scsi: libsas: Delete sas_ata_task.stp_affil_pol
scsi: libsas: Delete sas_ata_task.set_affil_pol
scsi: libsas: Delete sas_ssp_task.task_prio
scsi: libsas: Delete sas_ssp_task.enable_first_burst
scsi: libsas: Delete sas_ssp_task.retry_count
scsi: libsas: Delete struct scsi_core
scsi: libsas: Delete enum sas_phy_type
scsi: libsas: Delete enum sas_class
scsi: libsas: Delete sas_ha_struct.lldd_module
scsi: target: Fix write perf due to unneeded throttling
scsi: lpfc: Do not abuse UUID APIs and LPFC_COMPRESS_VMID_SIZE
scsi: pm8001: Remove unused declarations
scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock
scsi: elx: sli4: Remove code duplication
scsi: bfa: Replace one-element array with flexible-array member in struct fc_rscn_pl_s
scsi: qla2xxx: Remove unused declarations
scsi: pmcraid: Use pci_dev_id() to simplify the code
scsi: pm80xx: Set RETFIS when requested by libsas
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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 char/misc and other small driver subsystem
changes for 6.6-rc1.
Stuff all over the place here, lots of driver updates and changes and
new additions. Short summary is:
- new IIO drivers and updates
- Interconnect driver updates
- fpga driver updates and additions
- fsi driver updates
- mei driver updates
- coresight driver updates
- nvmem driver updates
- counter driver updates
- lots of smaller misc and char driver updates and additions
All of these have been in linux-next for a long time with no reported
problems"
* tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits)
nvmem: core: Notify when a new layout is registered
nvmem: core: Do not open-code existing functions
nvmem: core: Return NULL when no nvmem layout is found
nvmem: core: Create all cells before adding the nvmem device
nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
dt-bindings: nvmem: Add compatible for QCM2290
nvmem: Kconfig: Fix typo "drive" -> "driver"
nvmem: Explicitly include correct DT includes
nvmem: add new NXP QorIQ eFuse driver
dt-bindings: nvmem: Add t1023-sfp efuse support
dt-bindings: nvmem: qfprom: Add compatible for MSM8226
nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
nvmem: qfprom: do some cleanup
nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource()
nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource()
nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource()
nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource()
nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt / PHY driver updates from Greg KH:
"Here is the big set of USB, Thunderbolt, and PHY driver updates for
6.6-rc1. Included in here are:
- PHY driver additions and cleanups
- Thunderbolt minor additions and fixes
- USB MIDI 2 gadget support added
- dwc3 driver updates and additions
- Removal of some old USB wireless code that was missed when that
codebase was originally removed a few years ago, cleaning up some
core USB code paths
- USB core potential use-after-free fixes that syzbot from different
people/groups keeps tripping over
- typec updates and additions
- gadget fixes and cleanups
- loads of smaller USB core and driver cleanups all over the place
Full details are in the shortlog. All of these have been in linux-next
for a while with no reported problems"
* tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
platform/chrome: cros_ec_typec: Configure Retimer cable type
tcpm: Avoid soft reset when partner does not support get_status
usb: typec: tcpm: reset counter when enter into unattached state after try role
usb: typec: tcpm: set initial svdm version based on pd revision
USB: serial: option: add FOXCONN T99W368/T99W373 product
USB: serial: option: add Quectel EM05G variant (0x030e)
usb: dwc2: add pci_device_id driver_data parse support
usb: gadget: remove max support speed info in bind operation
usb: gadget: composite: cleanup function config_ep_by_speed_and_alt()
usb: gadget: config: remove max speed check in usb_assign_descriptors()
usb: gadget: unconditionally allocate hs/ss descriptor in bind operation
usb: gadget: f_uvc: change endpoint allocation in uvc_function_bind()
usb: gadget: add a inline function gether_bitrate()
usb: gadget: use working speed to calcaulate network bitrate and qlen
dt-bindings: usb: samsung,exynos-dwc3: Add Exynos850 support
usb: dwc3: exynos: Add support for Exynos850 variant
usb: gadget: udc-xilinx: fix incorrect type in assignment warning
usb: gadget: udc-xilinx: fix cast from restricted __le16 warning
usb: gadget: udc-xilinx: fix restricted __le16 degrades to integer warning
USB: dwc2: hande irq on dead controller correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- hp-bioscfg: New firmware-attributes driver for changing BIOS settings
from within Linux
- asus-wmi: Add charger mode, middle fan and eGPU settings support
- ideapad: Support keyboard backlight control on more models
- mellanox: Support for new models
- sel-3350: New LED and power-supply driver for this industrial
mainboard
- simatic-ipc: Add RTC battery monitor and various new models support
- miscellaneous other cleanups / fixes
* tag 'platform-drivers-x86-v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (101 commits)
platform/x86: asus-wmi: corrections to egpu safety check
platform/x86: mlx-platform: Add dependency on PCI to Kconfig
platform/x86: ideapad-laptop: Add support for keyboard backlights using KBLC ACPI symbol
platform/x86/amd/pmc: Fix build error with randconfig
platform/x86/amd/pmf: Fix a missing cleanup path
watchdog: simatic: Use idiomatic selection of P2SB
platform/x86: p2sb: Make the Kconfig symbol hidden
Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
platform: mellanox: nvsw-sn2201: change fans i2c busses.
platform: mellanox: mlxreg-hotplug: Extend condition for notification callback processing
platform: mellanox: Add initial support for PCIe based programming logic device
platform: mellanox: mlx-platform: Get interrupt line through ACPI
platform: mellanox: mlx-platform: Introduce ACPI init flow
platform: mellanox: mlx-platform: Prepare driver to allow probing through ACPI infrastructure
platform: mellanox: mlx-platform: Add reset callback
platform: mellanox: Cosmetic changes
platform: mellanox: mlx-platform: Modify power off callback
platform: mellanox: mlx-platform: add support for additional CPLD
platform: mellanox: mlx-platform: Add reset cause attribute
platform: mellanox: mlx-platform: Modify health and power hotplug action
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the
configured SMT state when hotplugging CPUs into the system
- Combine final TLB flush and lazy TLB mm shootdown IPIs when using the
Radix MMU to avoid a broadcast TLBIE flush on exit
- Drop the exclusion between ptrace/perf watchpoints, and drop the now
unused associated arch hooks
- Add support for the "nohlt" command line option to disable CPU idle
- Add support for -fpatchable-function-entry for ftrace, with GCC >=
13.1
- Rework memory block size determination, and support 256MB size on
systems with GPUs that have hotpluggable memory
- Various other small features and fixes
Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam
Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel
Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof
Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar,
Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor,
Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar
Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh
Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain,
Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai.
* tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits)
macintosh/ams: linux/platform_device.h is needed
powerpc/xmon: Reapply "Relax frame size for clang"
powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached
powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled
powerpc/iommu: Fix notifiers being shared by PCI and VIO buses
powerpc/mpc5xxx: Add missing fwnode_handle_put()
powerpc/config: Disable SLAB_DEBUG_ON in skiroot
powerpc/pseries: Remove unused hcall tracing instruction
powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n
powerpc: dts: add missing space before {
powerpc/eeh: Use pci_dev_id() to simplify the code
powerpc/64s: Move CPU -mtune options into Kconfig
powerpc/powermac: Fix unused function warning
powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT
powerpc: Don't include lppaca.h in paca.h
powerpc/pseries: Move hcall_vphn() prototype into vphn.h
powerpc/pseries: Move VPHN constants into vphn.h
cxl: Drop unused detach_spa()
powerpc: Drop zalloc_maybe_bootmem()
powerpc/powernv: Use struct opal_prd_msg in more places
...
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Pull documentation updates from Jonathan Corbet:
"Documentation work keeps chugging along; this includes:
- Work from Carlos Bilbao to integrate rustdoc output into the
generated HTML documentation. This took some work to figure out how
to do it without slowing the docs build and without creating people
who don't have Rust installed, but Carlos got there
- Move the loongarch and mips architecture documentation under
Documentation/arch/
- Some more maintainer documentation from Jakub
... plus the usual assortment of updates, translations, and fixes"
* tag 'docs-6.6' of git://git.lwn.net/linux: (56 commits)
Docu: genericirq.rst: fix irq-example
input: docs: pxrc: remove reference to phoenix-sim
Documentation: serial-console: Fix literal block marker
docs/mm: remove references to hmm_mirror ops and clean typos
docs/zh_CN: correct regi_chg(),regi_add() to region_chg(),region_add()
Documentation: Fix typos
Documentation/ABI: Fix typos
scripts: kernel-doc: fix macro handling in enums
scripts: kernel-doc: parse DEFINE_DMA_UNMAP_[ADDR|LEN]
Documentation: riscv: Update boot image header since EFI stub is supported
Documentation: riscv: Add early boot document
Documentation: arm: Add bootargs to the table of added DT parameters
docs: kernel-parameters: Refer to the correct bitmap function
doc: update params of memhp_default_state=
docs: Add book to process/kernel-docs.rst
docs: sparse: fix invalid link addresses
docs: vfs: clean up after the iterate() removal
docs: Add a section on surveys to the researcher guidelines
docs: move mips under arch
docs: move loongarch under arch
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"The main change this time was the introduction of the drivers/genpd
subsystem that gets split out from drivers/soc to keep common
functionality together.
The SCMI driver subsystem gets an update to version 3.2 of the
specification. There are also updates to memory, reset and other
firmware drivers.
On the soc driver side, the updates are mostly cleanups across a
number of Arm platforms. On driver for loongarch adds power management
for DT based systems, another driver is for HiSilicon's Arm server
chips with their HCCS system health interface.
The remaining updates for the most part add support for additional
hardware in existing drivers or contain minor cleanups. Most of these
are for the Qualcomm Snapdragon platform"
* tag 'soc-drivers-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (136 commits)
bus: fsl-mc: Use common ranges functions
soc: kunpeng_hccs: fix some sparse warnings about incorrect type
soc: loongson2_pm: add power management support
soc: dt-bindings: add loongson-2 pm
soc: rockchip: grf: Fix SDMMC not working on RK3588 with bus-width > 1
genpd: rockchip: Add PD_VO entry for rv1126
bus: ti-sysc: Fix cast to enum warning
soc: kunpeng_hccs: add MAILBOX dependency
MAINTAINERS: remove OXNAS entry
dt-bindings: interrupt-controller: arm,versatile-fpga-irq: mark oxnas compatible as deprecated
irqchip: irq-versatile-fpga: remove obsolete oxnas compatible
soc: qcom: aoss: Tidy up qmp_send() callers
soc: qcom: aoss: Format string in qmp_send()
soc: qcom: aoss: Move length requirements from caller
soc: kunpeng_hccs: fix size_t format string
soc: ti: k3-socinfo.c: Add JTAG ID for AM62PX
dt-bindings: firmware: qcom: scm: Updating VMID list
firmware: imx: scu-irq: support identifying SCU wakeup source from sysfs
firmware: imx: scu-irq: enlarge the IMX_SC_IRQ_NUM_GROUP
firmware: imx: scu-irq: add imx_scu_irq_get_status
...
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git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem updates from Mimi Zohar:
- With commit 099f26f22f58 ("integrity: machine keyring CA
configuration") certificates may be loaded onto the IMA keyring,
directly or indirectly signed by keys on either the "builtin" or the
"machine" keyrings.
With the ability for the system/machine owner to sign the IMA policy
itself without needing to recompile the kernel, update the IMA
architecture specific policy rules to require the IMA policy itself
be signed.
[ As commit 099f26f22f58 was upstreamed in linux-6.4, updating the
IMA architecture specific policy now to require signed IMA policies
may break userspace expectations. ]
- IMA only checked the file data hash was not on the system blacklist
keyring for files with an appended signature (e.g. kernel modules,
Power kernel image).
Check all file data hashes regardless of how it was signed
- Code cleanup, and a kernel-doc update
* tag 'integrity-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
kexec_lock: Replace kexec_mutex() by kexec_lock() in two comments
ima: require signed IMA policy when UEFI secure boot is enabled
integrity: Always reference the blacklist keyring with appraisal
ima: Remove deprecated IMA_TRUSTED_KEYRING Kconfig
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- An extensive rework of kexec and crash Kconfig from Eric DeVolder
("refactor Kconfig to consolidate KEXEC and CRASH options")
- kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
couple of macros to args.h")
- gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
commands")
- vsprintf inclusion rationalization from Andy Shevchenko
("lib/vsprintf: Rework header inclusions")
- Switch the handling of kdump from a udev scheme to in-kernel
handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
hot un/plug")
- Many singleton patches to various parts of the tree
* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
document while_each_thread(), change first_tid() to use for_each_thread()
drivers/char/mem.c: shrink character device's devlist[] array
x86/crash: optimize CPU changes
crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
crash: hotplug support for kexec_load()
x86/crash: add x86 crash hotplug support
crash: memory and CPU hotplug sysfs attributes
kexec: exclude elfcorehdr from the segment digest
crash: add generic infrastructure for crash hotplug support
crash: move a few code bits to setup support of crash hotplug
kstrtox: consistently use _tolower()
kill do_each_thread()
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
scripts/bloat-o-meter: count weak symbol sizes
treewide: drop CONFIG_EMBEDDED
lockdep: fix static memory detection even more
lib/vsprintf: declare no_hash_pointers in sprintf.h
lib/vsprintf: split out sprintf() and friends
kernel/fork: stop playing lockless games for exe_file replacement
adfs: delete unused "union adfs_dirtail" definition
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Some swap cleanups from Ma Wupeng ("fix WARN_ON in
add_to_avail_list")
- Peter Xu has a series (mm/gup: Unify hugetlb, speed up thp") which
reduces the special-case code for handling hugetlb pages in GUP. It
also speeds up GUP handling of transparent hugepages.
- Peng Zhang provides some maple tree speedups ("Optimize the fast path
of mas_store()").
- Sergey Senozhatsky has improved te performance of zsmalloc during
compaction (zsmalloc: small compaction improvements").
- Domenico Cerasuolo has developed additional selftest code for zswap
("selftests: cgroup: add zswap test program").
- xu xin has doe some work on KSM's handling of zero pages. These
changes are mainly to enable the user to better understand the
effectiveness of KSM's treatment of zero pages ("ksm: support
tracking KSM-placed zero-pages").
- Jeff Xu has fixes the behaviour of memfd's
MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED sysctl ("mm/memfd: fix sysctl
MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED").
- David Howells has fixed an fscache optimization ("mm, netfs, fscache:
Stop read optimisation when folio removed from pagecache").
- Axel Rasmussen has given userfaultfd the ability to simulate memory
poisoning ("add UFFDIO_POISON to simulate memory poisoning with
UFFD").
- Miaohe Lin has contributed some routine maintenance work on the
memory-failure code ("mm: memory-failure: remove unneeded PageHuge()
check").
- Peng Zhang has contributed some maintenance work on the maple tree
code ("Improve the validation for maple tree and some cleanup").
- Hugh Dickins has optimized the collapsing of shmem or file pages into
THPs ("mm: free retracted page table by RCU").
- Jiaqi Yan has a patch series which permits us to use the healthy
subpages within a hardware poisoned huge page for general purposes
("Improve hugetlbfs read on HWPOISON hugepages").
- Kemeng Shi has done some maintenance work on the pagetable-check code
("Remove unused parameters in page_table_check").
- More folioification work from Matthew Wilcox ("More filesystem folio
conversions for 6.6"), ("Followup folio conversions for zswap"). And
from ZhangPeng ("Convert several functions in page_io.c to use a
folio").
- page_ext cleanups from Kemeng Shi ("minor cleanups for page_ext").
- Baoquan He has converted some architectures to use the
GENERIC_IOREMAP ioremap()/iounmap() code ("mm: ioremap: Convert
architectures to take GENERIC_IOREMAP way").
- Anshuman Khandual has optimized arm64 tlb shootdown ("arm64: support
batched/deferred tlb shootdown during page reclamation/migration").
- Better maple tree lockdep checking from Liam Howlett ("More strict
maple tree lockdep"). Liam also developed some efficiency
improvements ("Reduce preallocations for maple tree").
- Cleanup and optimization to the secondary IOMMU TLB invalidation,
from Alistair Popple ("Invalidate secondary IOMMU TLB on permission
upgrade").
- Ryan Roberts fixes some arm64 MM selftest issues ("selftests/mm fixes
for arm64").
- Kemeng Shi provides some maintenance work on the compaction code
("Two minor cleanups for compaction").
- Some reduction in mmap_lock pressure from Matthew Wilcox ("Handle
most file-backed faults under the VMA lock").
- Aneesh Kumar contributes code to use the vmemmap optimization for DAX
on ppc64, under some circumstances ("Add support for DAX vmemmap
optimization for ppc64").
- page-ext cleanups from Kemeng Shi ("add page_ext_data to get client
data in page_ext"), ("minor cleanups to page_ext header").
- Some zswap cleanups from Johannes Weiner ("mm: zswap: three
cleanups").
- kmsan cleanups from ZhangPeng ("minor cleanups for kmsan").
- VMA handling cleanups from Kefeng Wang ("mm: convert to
vma_is_initial_heap/stack()").
- DAMON feature work from SeongJae Park ("mm/damon/sysfs-schemes:
implement DAMOS tried total bytes file"), ("Extend DAMOS filters for
address ranges and DAMON monitoring targets").
- Compaction work from Kemeng Shi ("Fixes and cleanups to compaction").
- Liam Howlett has improved the maple tree node replacement code
("maple_tree: Change replacement strategy").
- ZhangPeng has a general code cleanup - use the K() macro more widely
("cleanup with helper macro K()").
- Aneesh Kumar brings memmap-on-memory to ppc64 ("Add support for
memmap on memory feature on ppc64").
- pagealloc cleanups from Kemeng Shi ("Two minor cleanups for pcp list
in page_alloc"), ("Two minor cleanups for get pageblock
migratetype").
- Vishal Moola introduces a memory descriptor for page table tracking,
"struct ptdesc" ("Split ptdesc from struct page").
- memfd selftest maintenance work from Aleksa Sarai ("memfd: cleanups
for vm.memfd_noexec").
- MM include file rationalization from Hugh Dickins ("arch: include
asm/cacheflush.h in asm/hugetlb.h").
- THP debug output fixes from Hugh Dickins ("mm,thp: fix sloppy text
output").
- kmemleak improvements from Xiaolei Wang ("mm/kmemleak: use
object_cache instead of kmemleak_initialized").
- More folio-related cleanups from Matthew Wilcox ("Remove _folio_dtor
and _folio_order").
- A VMA locking scalability improvement from Suren Baghdasaryan
("Per-VMA lock support for swap and userfaults").
- pagetable handling cleanups from Matthew Wilcox ("New page table
range API").
- A batch of swap/thp cleanups from David Hildenbrand ("mm/swap: stop
using page->private on tail pages for THP_SWAP + cleanups").
- Cleanups and speedups to the hugetlb fault handling from Matthew
Wilcox ("Change calling convention for ->huge_fault").
- Matthew Wilcox has also done some maintenance work on the MM
subsystem documentation ("Improve mm documentation").
* tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (489 commits)
maple_tree: shrink struct maple_tree
maple_tree: clean up mas_wr_append()
secretmem: convert page_is_secretmem() to folio_is_secretmem()
nios2: fix flush_dcache_page() for usage from irq context
hugetlb: add documentation for vma_kernel_pagesize()
mm: add orphaned kernel-doc to the rst files.
mm: fix clean_record_shared_mapping_range kernel-doc
mm: fix get_mctgt_type() kernel-doc
mm: fix kernel-doc warning from tlb_flush_rmaps()
mm: remove enum page_entry_size
mm: allow ->huge_fault() to be called without the mmap_lock held
mm: move PMD_ORDER to pgtable.h
mm: remove checks for pte_index
memcg: remove duplication detection for mem_cgroup_uncharge_swap
mm/huge_memory: work on folio->swap instead of page->private when splitting folio
mm/swap: inline folio_set_swap_entry() and folio_swap_entry()
mm/swap: use dedicated entry for swap in folio
mm/swap: stop using page->private on tail pages for THP_SWAP
selftests/mm: fix WARNING comparing pointer to 0
selftests: cgroup: fix test_kmem_memcg_deletion kernel mem check
...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Move crypto engine callback from tfm ctx into algorithm object
- Fix atomic sleep bug in crypto_destroy_instance
- Move lib/mpi into lib/crypto
Algorithms:
- Add chacha20 and poly1305 implementation for powerpc p10
Drivers:
- Add AES skcipher and aead support to starfive
- Add Dynamic Boost Control support to ccp
- Add support for STM32P13 platform to stm32"
* tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (149 commits)
Revert "dt-bindings: crypto: qcom,prng: Add SM8450"
crypto: chelsio - Remove unused declarations
X.509: if signature is unsupported skip validation
crypto: qat - fix crypto capability detection for 4xxx
crypto: drivers - Explicitly include correct DT includes
crypto: engine - Remove crypto_engine_ctx
crypto: zynqmp - Use new crypto_engine_op interface
crypto: virtio - Use new crypto_engine_op interface
crypto: stm32 - Use new crypto_engine_op interface
crypto: jh7110 - Use new crypto_engine_op interface
crypto: rk3288 - Use new crypto_engine_op interface
crypto: omap - Use new crypto_engine_op interface
crypto: keembay - Use new crypto_engine_op interface
crypto: sl3516 - Use new crypto_engine_op interface
crypto: caam - Use new crypto_engine_op interface
crypto: aspeed - Remove non-standard sha512 algorithms
crypto: aspeed - Use new crypto_engine_op interface
crypto: amlogic - Use new crypto_engine_op interface
crypto: sun8i-ss - Use new crypto_engine_op interface
crypto: sun8i-ce - Use new crypto_engine_op interface
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- core: avoid duplicate hwmon device from thermal framework
- convert multiple drivers to devm_platform_ioremap_resource
- at91-reset: add sysfs interface to the power on reason
- misc small fixes and improvements
* tag 'for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
power: supply: qcom_pmi8998_charger: fix charger status
power: supply: qcom_pmi8998_charger: remove CHARGE_CONTROL_LIMIT_* props
power: supply: qcom_pmi8998_charger: fix uninitialized variable
power: reset: oxnas-restart: remove obsolete restart driver
power: supply: core: Avoid duplicate hwmon device from thermal framework
power: reset: ocelot: Convert to devm_platform_ioremap_resource()
power: reset: msm: Convert to devm_platform_ioremap_resource()
power: reset: gemini-poweroff: Convert to devm_platform_ioremap_resource()
power: reset: brcm-kona: Convert to devm_platform_ioremap_resource()
power: reset: at91-sama5d2_shdwc: Convert to devm_platform_ioremap_resource()
power: reset: at91-poweroff: Convert to devm_platform_ioremap_resource()
power: reset: at91-reset: add sysfs interface to the power on reason
power: supply: bd99954: make read-only array sub_status_reg
power: supply: bq24190: Considers FORCE_20PCT when getting IPRECHG
power: Explicitly include correct DT includes
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"Improvements:
- Remove shutdown timeout on EC panic for offering the filesystem a
chance to sync
- Support official HID "GOOG0016" for ChromeOS ACPI
Fixes:
- Print hex string instead of using "%s" for ACPI_TYPE_BUFFER
Misc:
- Update MAINTAINERS"
* tag 'tag-chrome-platform-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: chromeos_acpi: print hex string for ACPI_TYPE_BUFFER
platform/chrome: chromeos_acpi: support official HID GOOG0016
platform/chrome: cros_ec_lpc: Remove EC panic shutdown timeout
MAINTAINERS: update maintainers of chrome-platform
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
"Updates for the CPU hotplug core:
- Support partial SMT enablement.
So far the sysfs SMT control only allows to toggle between SMT on
and off. That's sufficient for x86 which usually has at max two
threads except for the Xeon PHI platform which has four threads per
core
Though PowerPC has up to 16 threads per core and so far it's only
possible to control the number of enabled threads per core via a
command line option. There is some way to control this at runtime,
but that lacks enforcement and the usability is awkward
This update expands the sysfs interface and the core infrastructure
to accept numerical values so PowerPC can build SMT runtime control
for partial SMT enablement on top
The core support has also been provided to the PowerPC maintainers
who added the PowerPC related changes on top
- Minor cleanups and documentation updates"
* tag 'smp-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation: core-api/cpuhotplug: Fix state names
cpu/hotplug: Remove unused function declaration cpu_set_state_online()
cpu/SMT: Fix cpu_smt_possible() comment
cpu/SMT: Allow enabling partial SMT states via sysfs
cpu/SMT: Create topology_smt_thread_allowed()
cpu/SMT: Remove topology_smt_supported()
cpu/SMT: Store the current/max number of threads
cpu/SMT: Move smt/control simple exit cases earlier
cpu/SMT: Move SMT prototypes into cpu_smt.h
cpu/hotplug: Remove dependancy against cpu_primary_thread_mask
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Introduce the crash_hotplug attribute for memory and CPUs for use by
userspace. These attributes directly facilitate the udev rule for
managing userspace re-loading of the crash kernel upon hot un/plug
changes.
For memory, expose the crash_hotplug attribute to the
/sys/devices/system/memory directory. For example:
# udevadm info --attribute-walk /sys/devices/system/memory/memory81
looking at device '/devices/system/memory/memory81':
KERNEL=="memory81"
SUBSYSTEM=="memory"
DRIVER==""
ATTR{online}=="1"
ATTR{phys_device}=="0"
ATTR{phys_index}=="00000051"
ATTR{removable}=="1"
ATTR{state}=="online"
ATTR{valid_zones}=="Movable"
looking at parent device '/devices/system/memory':
KERNELS=="memory"
SUBSYSTEMS==""
DRIVERS==""
ATTRS{auto_online_blocks}=="offline"
ATTRS{block_size_bytes}=="8000000"
ATTRS{crash_hotplug}=="1"
For CPUs, expose the crash_hotplug attribute to the
/sys/devices/system/cpu directory. For example:
# udevadm info --attribute-walk /sys/devices/system/cpu/cpu0
looking at device '/devices/system/cpu/cpu0':
KERNEL=="cpu0"
SUBSYSTEM=="cpu"
DRIVER=="processor"
ATTR{crash_notes}=="277c38600"
ATTR{crash_notes_size}=="368"
ATTR{online}=="1"
looking at parent device '/devices/system/cpu':
KERNELS=="cpu"
SUBSYSTEMS==""
DRIVERS==""
ATTRS{crash_hotplug}=="1"
ATTRS{isolated}==""
ATTRS{kernel_max}=="8191"
ATTRS{nohz_full}==" (null)"
ATTRS{offline}=="4-7"
ATTRS{online}=="0-3"
ATTRS{possible}=="0-7"
ATTRS{present}=="0-3"
With these sysfs attributes in place, it is possible to efficiently
instruct the udev rule to skip crash kernel reloading for kernels
configured with crash hotplug support.
For example, the following is the proposed udev rule change for RHEL
system 98-kexec.rules (as the first lines of the rule file):
# The kernel updates the crash elfcorehdr for CPU and memory changes
SUBSYSTEM=="cpu", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end"
SUBSYSTEM=="memory", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end"
When examined in the context of 98-kexec.rules, the above rules test if
crash_hotplug is set, and if so, the userspace initiated
unload-then-reload of the crash kernel is skipped.
CPU and memory checks are separated in accordance with CONFIG_HOTPLUG_CPU
and CONFIG_MEMORY_HOTPLUG kernel config options. If an architecture
supports, for example, memory hotplug but not CPU hotplug, then the
/sys/devices/system/memory/crash_hotplug attribute file is present, but
the /sys/devices/system/cpu/crash_hotplug attribute file will NOT be
present. Thus the udev rule skips userspace processing of memory hot
un/plug events, but the udev rule will evaluate false for CPU events, thus
allowing userspace to process CPU hot un/plug events (ie the
unload-then-reload of the kdump capture kernel).
Link: https://lkml.kernel.org/r/20230814214446.6659-5-eric.devolder@oracle.com
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Reviewed-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Akhil Raj <lf32.dev@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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Add documentation for the new attributes:
- CPLD versioning: "cpld5_pn", "cpld5_version", "cpld5_version_min".
- JTAG capability: "jtag_cap", indicating the available method of
CPLD/FPGA devices field update.
- System lid status: "lid_open".
- Reset caused by long press of power button: "reset_long_pwr_pb".
- Reset caused by switch board DC-DC converter device failure:
"reset_swb_dc_dc_pwr_fail".
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230822113451.13785-17-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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This patch extends the mlxbf-bootctl driver's sysfs entries
to support read and write access for the manufacturing (MFG)
fields in the board-level EEPROM. The MFG fields are set
once during the board manufacturing phase, and then the MFG
fields are write-protected.
Signed-off-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Link: https://lore.kernel.org/r/20230821183939.3229-1-davthompson@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Commit b655892ffd6d ("leds: trigger: netdev: expose hw_control status
via sysfs") exposed to sysfs the flag that tells whether the LED trigger
is offloaded to hardware, under the name "hw_control", since that is the
name under which this setting is called in the code.
Everywhere else in kernel when some work that is normally done in
software can be made to be done by hardware instead, we use the word
"offloading" to describe this, e.g. "LED blinking is offloaded to
hardware".
Normally renaming sysfs entries is a no-go because of backwards
compatibility. But since this patch was not yet released in a stable
kernel, I think it is still possible to rename it, if there is
consensus.
Fixes: b655892ffd6d ("leds: trigger: netdev: expose hw_control status via sysfs")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230821121453.30203-1-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-next
William writes:
First set of Counter updates for the 6.6 cycle
This set consists primarily of minor clean-ups. The counter_priv()
'const' attribute change does yield a small improvement in reducing
the binary size.
Changes
* rz-mtu3-cnt
- Reorder locking sequence for consistency
* Documentation
- sysfs-bus-counter: Fix indentation
* counter
- Declare counter_priv() to be const
* microchip-tcb-capture
- Explicitly include correct DT includes
* tag 'counter-updates-for-6.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
counter: rz-mtu3-cnt: Reorder locking sequence for consistency
Documentation: ABI: sysfs-bus-counter: Fix indentation
counter: Declare counter_priv() to be const
counter: Explicitly include correct DT includes
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git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next
Mika writes:
thunderbolt: Changes for v6.6 merge window
This includes following Thunderbolt/USB4 changes for the v6.6 merge
window:
- Replace broken mailing list address in the ABI document
- Small improvements.
All these have been in linux-next with no reported issues.
* tag 'thunderbolt-for-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
Documentation/ABI: thunderbolt: Replace 01.org in contact
thunderbolt: Check Intel vendor ID in tb_switch_get_generation()
thunderbolt: Log a warning if device links are not found
thunderbolt: Set variable tmu_params storage class specifier to static
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Update DAMON ABI document for the newly added DAMON monitoring target type
DAMOS filter.
Link: https://lkml.kernel.org/r/20230802214312.110532-13-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Update DAMON ABI document for address ranges type DAMOS filter files.
Link: https://lkml.kernel.org/r/20230802214312.110532-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Update the DAMON ABI document for newly added
schemes/.../tried_regions/total_bytes file and the
update_schemes_tried_bytes command.
Link: https://lkml.kernel.org/r/20230802213222.109841-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The description of max_small_discards is out-of-update in below two
aspects, fix it.
- it is disabled by default
- small discards will be issued during checkpoint
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Fix typos in Documentation/ABI. The changes are in descriptions or
comments where they shouldn't affect use of the ABIs.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230814212822.193684-2-helgaas@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Correct spelling problems as identified by codespell.
Link: https://lkml.kernel.org/r/20230710052223.18254-1-rdunlap@infradead.org
Fixes: facb6011f399 ("HWPOISON: Add soft page offline support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Store the color of the LED so that it is not lost after the LED's
name has been composed. This color information can then be exposed to
the user space or used by the LED consumer.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Link: https://lore.kernel.org/r/20230728153731.3742339-3-jjhiblot@traphandler.com
Signed-off-by: Lee Jones <lee@kernel.org>
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affinity_domain_via_partition sysfs interface file
Add details of the new hv-gpci interface file called
"affinity_domain_via_partition" in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-11-kjain@linux.ibm.com
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affinity_domain_via_domain sysfs interface file
Add details of the new hv-gpci interface file called
"affinity_domain_via_domain" in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-9-kjain@linux.ibm.com
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affinity_domain_via_virtual_processor sysfs interface file
Add details of the new hv-gpci interface file called
"affinity_domain_via_virtual_processor" in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-7-kjain@linux.ibm.com
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sysfs interface file
Add details of the new hv-gpci interface file called
"processor_config" in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-5-kjain@linux.ibm.com
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processor_bus_topology sysfs interface file
Add details of the new hv-gpci interface file called
"processor_bus_topology" in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-3-kjain@linux.ibm.com
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Fix the indentation of the KernelVersion, Contact, and Description in
external_input_phase_clock_select_available block by replacing
spaces with tabs similar to other blocks.
Reported-by: Pavel Machek <pavel@denx.de>
Closes: https://lore.kernel.org/r/ZH8D3lCobUJP2T4K@duo.ucw.cz/
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230721151243.282435-1-biju.das.jz@bp.renesas.com/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
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Correct spelling problems as identified by codespell.
Fixes: 9e615dbba41e ("f2fs: add missing description for ipu_policy node")
Fixes: b2e4a2b300e5 ("f2fs: expose discard related parameters in sysfs")
Fixes: 846ae671ad36 ("f2fs: expose extension_list sysfs entry")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <chao@kernel.org>
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: Yangtao Li <frank.li@vivo.com>
Cc: Konstantin Vyshetsky <vkon@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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We need the USB and Thunderbolt fixes in here to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the char/misc fixes in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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