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2025-05-21Merge tag 'spacemit-dt-for-6.16-1' of https://github.com/spacemit-com/linux ↵Arnd Bergmann
into soc/dt RISC-V SpacemiT DT changes for 6.16 - Add clock driver, fix for pinctrl/uart - Add gpio support, enable LED heartbeat * tag 'spacemit-dt-for-6.16-1' of https://github.com/spacemit-com/linux: riscv: dts: spacemit: add gpio LED for system heartbeat riscv: dts: spacemit: add gpio support for K1 SoC riscv: dts: spacemit: Acquire clocks for UART riscv: dts: spacemit: Acquire clocks for pinctrl riscv: dts: spacemit: Add clock tree for SpacemiT K1 dt-bindings: clock: spacemit: Add spacemit,k1-pll dt-bindings: soc: spacemit: Add spacemit,k1-syscon Link: https://lore.kernel.org/r/20250514044841-GYA524674@gentoo Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-05-21Merge tag 'samsung-drivers-6.16-2' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers Samsung SoC drivers for v6.16, part two Add CPU hotplug support on Google GS101 by toggling respective bits in secondary PMU intr block (Power Management Unit (PMU) Interrupt Generation) from the main PMU driver. * tag 'samsung-drivers-6.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: soc: samsung: exynos-pmu: enable CPU hotplug support for gs101 MAINTAINERS: Add google,gs101-pmu-intr-gen.yaml binding file dt-bindings: soc: samsung: exynos-pmu: gs101: add google,pmu-intr-gen phandle dt-bindings: soc: google: Add gs101-pmu-intr-gen binding documentation Link: https://lore.kernel.org/r/20250516082037.7248-2-krzysztof.kozlowski@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-05-21tools: ynl-gen: add makefile deps for neighJakub Kicinski
Kory is reporting build issues after recent additions to YNL if the system headers are old. Link: https://lore.kernel.org/20250519164949.597d6e92@kmaincent-XPS-13-7390 Reported-by: Kory Maincent <kory.maincent@bootlin.com> Fixes: 0939a418b3b0 ("tools: ynl: submsg: reverse parse / error reporting") Tested-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20250520161916.413298-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21PCI/MSI: Use bool for MSI enable state trackingHans Zhang
Convert pci_msi_enable and pci_msi_enabled() to use bool type for clarity. No functional changes, only code cleanup. Signed-off-by: Hans Zhang <hans.zhang@cixtech.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250516165223.125083-2-18255117159@163.com
2025-05-21mailmap: update and consolidate Casey Connolly's name and emailCasey Connolly
I've used several email addresses and a previous name to contribute. Consolidate all of these to my primary email and update my name. Link: https://lkml.kernel.org/r/20250517223237.15647-2-casey.connolly@linaro.org Signed-off-by: Casey Connolly <casey.connolly@linaro.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21crash_dump: retrieve dm crypt keys in kdump kernelCoiby Xu
Crash kernel will retrieve the dm crypt keys based on the dmcryptkeys command line parameter. When user space writes the key description to /sys/kernel/config/crash_dm_crypt_key/restore, the crash kernel will save the encryption keys to the user keyring. Then user space e.g. cryptsetup's --volume-key-keyring API can use it to unlock the encrypted device. Link: https://lkml.kernel.org/r/20250502011246.99238-6-coxu@redhat.com Signed-off-by: Coiby Xu <coxu@redhat.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: "Daniel P. Berrange" <berrange@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Dave Young <dyoung@redhat.com> Cc: Jan Pazdziora <jpazdziora@redhat.com> Cc: Liu Pingfan <kernelfans@gmail.com> Cc: Milan Broz <gmazyland@gmail.com> Cc: Ondrej Kozina <okozina@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21crash_dump: store dm crypt keys in kdump reserved memoryCoiby Xu
When the kdump kernel image and initrd are loaded, the dm crypts keys will be read from keyring and then stored in kdump reserved memory. Assume a key won't exceed 256 bytes thus MAX_KEY_SIZE=256 according to "cryptsetup benchmark". Link: https://lkml.kernel.org/r/20250502011246.99238-4-coxu@redhat.com Signed-off-by: Coiby Xu <coxu@redhat.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: "Daniel P. Berrange" <berrange@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Dave Young <dyoung@redhat.com> Cc: Jan Pazdziora <jpazdziora@redhat.com> Cc: Liu Pingfan <kernelfans@gmail.com> Cc: Milan Broz <gmazyland@gmail.com> Cc: Ondrej Kozina <okozina@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21kexec_file: allow to place kexec_buf randomlyCoiby Xu
Patch series "Support kdump with LUKS encryption by reusing LUKS volume keys", v9. LUKS is the standard for Linux disk encryption, widely adopted by users, and in some cases, such as Confidential VMs, it is a requirement. With kdump enabled, when the first kernel crashes, the system can boot into the kdump/crash kernel to dump the memory image (i.e., /proc/vmcore) to a specified target. However, there are two challenges when dumping vmcore to a LUKS-encrypted device: - Kdump kernel may not be able to decrypt the LUKS partition. For some machines, a system administrator may not have a chance to enter the password to decrypt the device in kdump initramfs after the 1st kernel crashes; For cloud confidential VMs, depending on the policy the kdump kernel may not be able to unseal the keys with TPM and the console virtual keyboard is untrusted. - LUKS2 by default use the memory-hard Argon2 key derivation function which is quite memory-consuming compared to the limited memory reserved for kdump. Take Fedora example, by default, only 256M is reserved for systems having memory between 4G-64G. With LUKS enabled, ~1300M needs to be reserved for kdump. Note if the memory reserved for kdump can't be used by 1st kernel i.e. an user sees ~1300M memory missing in the 1st kernel. Besides users (at least for Fedora) usually expect kdump to work out of the box i.e. no manual password input or custom crashkernel value is needed. And it doesn't make sense to derivate the keys again in kdump kernel which seems to be redundant work. This patchset addresses the above issues by making the LUKS volume keys persistent for kdump kernel with the help of cryptsetup's new APIs (--link-vk-to-keyring/--volume-key-keyring). Here is the life cycle of the kdump copies of LUKS volume keys, 1. After the 1st kernel loads the initramfs during boot, systemd use an user-input passphrase to de-crypt the LUKS volume keys or TPM-sealed key and then save the volume keys to specified keyring (using the --link-vk-to-keyring API) and the key will expire within specified time. 2. A user space tool (kdump initramfs loader like kdump-utils) create key items inside /sys/kernel/config/crash_dm_crypt_keys to inform the 1st kernel which keys are needed. 3. When the kdump initramfs is loaded by the kexec_file_load syscall, the 1st kernel will iterate created key items, save the keys to kdump reserved memory. 4. When the 1st kernel crashes and the kdump initramfs is booted, the kdump initramfs asks the kdump kernel to create a user key using the key stored in kdump reserved memory by writing yes to /sys/kernel/crash_dm_crypt_keys/restore. Then the LUKS encrypted device is unlocked with libcryptsetup's --volume-key-keyring API. 5. The system gets rebooted to the 1st kernel after dumping vmcore to the LUKS encrypted device is finished After libcryptsetup saving the LUKS volume keys to specified keyring, whoever takes this should be responsible for the safety of these copies of keys. The keys will be saved in the memory area exclusively reserved for kdump where even the 1st kernel has no direct access. And further more, two additional protections are added, - save the copy randomly in kdump reserved memory as suggested by Jan - clear the _PAGE_PRESENT flag of the page that stores the copy as suggested by Pingfan This patchset only supports x86. There will be patches to support other architectures once this patch set gets merged. This patch (of 9): Currently, kexec_buf is placed in order which means for the same machine, the info in the kexec_buf is always located at the same position each time the machine is booted. This may cause a risk for sensitive information like LUKS volume key. Now struct kexec_buf has a new field random which indicates it's supposed to be placed in a random position. Note this feature is enabled only when CONFIG_CRASH_DUMP is enabled. So it only takes effect for kdump and won't impact kexec reboot. Link: https://lkml.kernel.org/r/20250502011246.99238-1-coxu@redhat.com Link: https://lkml.kernel.org/r/20250502011246.99238-2-coxu@redhat.com Signed-off-by: Coiby Xu <coxu@redhat.com> Suggested-by: Jan Pazdziora <jpazdziora@redhat.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: "Daniel P. Berrange" <berrange@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Dave Young <dyoung@redhat.com> Cc: Liu Pingfan <kernelfans@gmail.com> Cc: Milan Broz <gmazyland@gmail.com> Cc: Ondrej Kozina <okozina@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21Merge tag 'qcom-drivers-for-6.16' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers Qualcomm driver updates for v6.16 Allow list QSEECOM for EFI variable services on on the Asus Zenbook A14, and block list TZMEM on the SM7150 platform to avoid issues with rmtfs. Extend the last-level cache (llcc) driver to support version 6 of the hardware and enable SM8750 support. Also add socinfo for the SM8750 platform. Re-enable UCSI support on SC8280XP, now that the reported crash has been dealt with, and filter the altmode notifications to avoid spurious hotplug events being propagated to user space. Add SM7150 support to pd-mapper. * tag 'qcom-drivers-for-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: soc: qcom: llcc-qcom: Add support for SM8750 soc: qcom: llcc-qcom: Add support for LLCC V6 dt-bindings: cache: qcom,llcc: Document SM8750 LLCC block soc: qcom: socinfo: add SM8750 SoC ID dt-bindings: arm: qcom,ids: add SoC ID for SM8750 dt-bindings: soc: qcom: qcom,rpm: add missing clock/-names properties dt-bindings: soc: qcom,rpm: add missing clock-controller node soc: qcom: smem: Update max processor count firmware: qcom: tzmem: disable sm7150 platform soc: qcom: pd-mapper: Add support for SM7150 soc: qcom: pmic_glink_altmode: fix spurious DP hotplug events soc: qcom: smp2p: Fix fallback to qcom,ipc parse soc: qcom: pmic_glink: enable UCSI on sc8280xp firmware: qcom: scm: Allow QSEECOM on Asus Zenbook A14 dt-bindings: soc: qcom,rpmh-rsc: Limit power-domains requirement Link: https://lore.kernel.org/r/20250513215656.44448-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-05-21Merge tag 'reset-for-v6.16' of git://git.pengutronix.de/pza/linux into ↵Arnd Bergmann
soc/drivers Reset controller updates for v6.16 * Add T-HEAD TH1520 and Renesas RZ/V2H(P) USB2PHY reset controller drivers. * Add devm_reset_control_array_get_exclusive_released() variant to allow using the acquire/release hand-off mechanism for exclusive reset controls bundled into reset control arrays. * Add Sophgo SG2044 reset controller to device tree bindings. * tag 'reset-for-v6.16' of git://git.pengutronix.de/pza/linux: dt-bindings: reset: sophgo: Add SG2044 bindings. MAINTAINERS: Add entry for Renesas RZ/V2H(P) USB2PHY Port Reset driver reset: Add USB2PHY port reset driver for Renesas RZ/V2H(P) dt-bindings: reset: Document RZ/V2H(P) USB2PHY reset reset: Add devm_reset_control_array_get_exclusive_released() reset: thead: Add TH1520 reset controller driver dt-bindings: reset: Add T-HEAD TH1520 SoC Reset Controller Link: https://lore.kernel.org/r/20250513092516.3331585-1-p.zabel@pengutronix.de Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-05-21Add DAPM/ASoC helpers to create SDCA driversMark Brown
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: Add helper functions to add DAPM widgets, routes, ALSA controls, and DAI drivers, these will be used to create SDCA function device drivers. This series should provide most of the core functionality needed to get a device registered and have a working DAPM graph within the device. There are some features that still need additional work, these are marked with FIXMEs in the code. The two main things are SDCA Clock Muxes (not used in our devices and needs some ASoC core work), and better support for more complex SDCA volume control definitions (our parts have fairly simple volumes, and SDCA has a large amount of flexibility in how the volume control is specified). The next steps in the process are to add helpers for the DAI ops themselves, some IRQ handling, and firmware download. And finally we should be able to actually add the SDCA class driver itself.
2025-05-21mm/mempolicy: Weighted Interleave Auto-tuningJoshua Hahn
On machines with multiple memory nodes, interleaving page allocations across nodes allows for better utilization of each node's bandwidth. Previous work by Gregory Price [1] introduced weighted interleave, which allowed for pages to be allocated across nodes according to user-set ratios. Ideally, these weights should be proportional to their bandwidth, so that under bandwidth pressure, each node uses its maximal efficient bandwidth and prevents latency from increasing exponentially. Previously, weighted interleave's default weights were just 1s -- which would be equivalent to the (unweighted) interleave mempolicy, which goes through the nodes in a round-robin fashion, ignoring bandwidth information. This patch has two main goals: First, it makes weighted interleave easier to use for users who wish to relieve bandwidth pressure when using nodes with varying bandwidth (CXL). By providing a set of "real" default weights that just work out of the box, users who might not have the capability (or wish to) perform experimentation to find the most optimal weights for their system can still take advantage of bandwidth-informed weighted interleave. Second, it allows for weighted interleave to dynamically adjust to hotplugged memory with new bandwidth information. Instead of manually updating node weights every time new bandwidth information is reported or taken off, weighted interleave adjusts and provides a new set of default weights for weighted interleave to use when there is a change in bandwidth information. To meet these goals, this patch introduces an auto-configuration mode for the interleave weights that provides a reasonable set of default weights, calculated using bandwidth data reported by the system. In auto mode, weights are dynamically adjusted based on whatever the current bandwidth information reports (and responds to hotplug events). This patch still supports users manually writing weights into the nodeN sysfs interface by entering into manual mode. When a user enters manual mode, the system stops dynamically updating any of the node weights, even during hotplug events that shift the optimal weight distribution. A new sysfs interface "auto" is introduced, which allows users to switch between the auto (writing 1 or Y) and manual (writing 0 or N) modes. The system also automatically enters manual mode when a nodeN interface is manually written to. There is one functional change that this patch makes to the existing weighted_interleave ABI: previously, writing 0 directly to a nodeN interface was said to reset the weight to the system default. Before this patch, the default for all weights were 1, which meant that writing 0 and 1 were functionally equivalent. With this patch, writing 0 is invalid. Link: https://lkml.kernel.org/r/20250520141236.2987309-1-joshua.hahnjy@gmail.com [joshua.hahnjy@gmail.com: wordsmithing changes, simplification, fixes] Link: https://lkml.kernel.org/r/20250511025840.2410154-1-joshua.hahnjy@gmail.com [joshua.hahnjy@gmail.com: remove auto_kobj_attr field from struct sysfs_wi_group] Link: https://lkml.kernel.org/r/20250512142511.3959833-1-joshua.hahnjy@gmail.com https://lore.kernel.org/linux-mm/20240202170238.90004-1-gregory.price@memverge.com/ [1] Link: https://lkml.kernel.org/r/20250505182328.4148265-1-joshua.hahnjy@gmail.com Co-developed-by: Gregory Price <gourry@gourry.net> Signed-off-by: Gregory Price <gourry@gourry.net> Signed-off-by: Joshua Hahn <joshua.hahnjy@gmail.com> Suggested-by: Yunjeong Mun <yunjeong.mun@sk.com> Suggested-by: Oscar Salvador <osalvador@suse.de> Suggested-by: Ying Huang <ying.huang@linux.alibaba.com> Suggested-by: Harry Yoo <harry.yoo@oracle.com> Reviewed-by: Harry Yoo <harry.yoo@oracle.com> Reviewed-by: Huang Ying <ying.huang@linux.alibaba.com> Reviewed-by: Honggyu Kim <honggyu.kim@sk.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Joanthan Cameron <Jonathan.Cameron@huawei.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21include: pe.h: Fix PE definitionsPali Rohár
* Rename constants to their standard PE names: - MZ_MAGIC -> IMAGE_DOS_SIGNATURE - PE_MAGIC -> IMAGE_NT_SIGNATURE - PE_OPT_MAGIC_PE32_ROM -> IMAGE_ROM_OPTIONAL_HDR_MAGIC - PE_OPT_MAGIC_PE32 -> IMAGE_NT_OPTIONAL_HDR32_MAGIC - PE_OPT_MAGIC_PE32PLUS -> IMAGE_NT_OPTIONAL_HDR64_MAGIC - IMAGE_DLL_CHARACTERISTICS_NX_COMPAT -> IMAGE_DLLCHARACTERISTICS_NX_COMPAT * Import constants and their description from readpe and file projects which contains current up-to-date information: - IMAGE_FILE_MACHINE_* - IMAGE_FILE_* - IMAGE_SUBSYSTEM_* - IMAGE_DLLCHARACTERISTICS_* - IMAGE_DLLCHARACTERISTICS_EX_* - IMAGE_DEBUG_TYPE_* * Add missing IMAGE_SCN_* constants and update their incorrect description * Fix incorrect value of IMAGE_SCN_MEM_PURGEABLE constant * Add description for win32_version and loader_flags PE fields Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-05-21Bluetooth: separate CIS_LINK and BIS_LINK link typesPauli Virtanen
Use separate link type id for unicast and broadcast ISO connections. These connection types are handled with separate HCI commands, socket API is different, and hci_conn has union fields that are different in the two cases, so they shall not be mixed up. Currently in most places it is attempted to distinguish ucast by bacmp(&c->dst, BDADDR_ANY) but it is wrong as dst is set for bcast sink hci_conn in iso_conn_ready(). Additionally checking sync_handle might be OK, but depends on details of bcast conn configuration flow. To avoid complicating it, use separate link types. Fixes: f764a6c2c1e4 ("Bluetooth: ISO: Add broadcast support") Signed-off-by: Pauli Virtanen <pav@iki.fi> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-05-21Bluetooth: add support for SIOCETHTOOL ETHTOOL_GET_TS_INFOPauli Virtanen
Bluetooth needs some way for user to get supported so_timestamping flags for the different socket types. Use SIOCETHTOOL API for this purpose. As hci_dev is not associated with struct net_device, the existing implementation can't be reused, so we add a small one here. Add support (only) for ETHTOOL_GET_TS_INFO command. The API differs slightly from netdev in that the result depends also on socket type. Signed-off-by: Pauli Virtanen <pav@iki.fi> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-05-21Bluetooth: Introduce HCI Driver protocolHsin-chen Chuang
Although commit 75ddcd5ad40e ("Bluetooth: btusb: Configure altsetting for HCI_USER_CHANNEL") has enabled the HCI_USER_CHANNEL user to send out SCO data through USB Bluetooth chips, it's observed that with the patch HFP is flaky on most of the existing USB Bluetooth controllers: Intel chips sometimes send out no packet for Transparent codec; MTK chips may generate SCO data with a wrong handle for CVSD codec; RTK could split the data with a wrong packet size for Transparent codec; ... etc. To address the issue above one needs to reset the altsetting back to zero when there is no active SCO connection, which is the same as the BlueZ behavior, and another benefit is the bus doesn't need to reserve bandwidth when no SCO connection. This patch adds the infrastructure that allow the user space program to talk to Bluetooth drivers directly: - Define the new packet type HCI_DRV_PKT which is specifically used for communication between the user space program and the Bluetooth drviers - hci_send_frame intercepts the packets and invokes drivers' HCI Drv callbacks (so far only defined for btusb) - 2 kinds of events to user space: Command Status and Command Complete, the former simply returns the status while the later may contain additional response data. Cc: chromeos-bluetooth-upstreaming@chromium.org Fixes: b16b327edb4d ("Bluetooth: btusb: add sysfs attribute to control USB alt setting") Signed-off-by: Hsin-chen Chuang <chharry@chromium.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-05-21HID: sensor-hub: Fix typo and improve documentationChelsy Ratnawat
Includes the following corrections - - Changed Measurment -> Measurement - Changed clode -> close - Gyro -> gyro Signed-off-by: Chelsy Ratnawat <chelsyratnawat2001@gmail.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250507055745.4069933-1-chelsyratnawat2001@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21iio: introduce IIO_DECLARE_BUFFER_WITH_TS macrosDavid Lechner
Add new macros to help with the common case of declaring a buffer that is safe to use with iio_push_to_buffers_with_ts(). This is not trivial to do correctly because of the alignment requirements of the timestamp. This will make it easier for both authors and reviewers. To avoid double __align() attributes in cases where we also need DMA alignment, add a 2nd variant IIO_DECLARE_DMA_BUFFER_WITH_TS(). Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250507-iio-introduce-iio_declare_buffer_with_ts-v6-2-4aee1b9f1b89@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21iio: make IIO_DMA_MINALIGN minimum of 8 bytesDavid Lechner
Add a condition to ensure that IIO_DMA_MINALIGN is at least 8 bytes. On some 32-bit architectures, IIO_DMA_MINALIGN is 4. In many cases, drivers are using this alignment for buffers that include a 64-bit timestamp that is used with iio_push_to_buffers_with_ts(), which expects the timestamp to be aligned to 8 bytes. To handle this, we can just make IIO_DMA_MINALIGN at least 8 bytes. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250507-iio-introduce-iio_declare_buffer_with_ts-v6-1-4aee1b9f1b89@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21HID: sensor-hub: Fix typo and improve documentation for ↵Chelsy Ratnawat
sensor_hub_remove_callback() Fixed a typo in "registered" and improved grammar for better readability and consistency with kernel-doc standards. No functional changes. Signed-off-by: Chelsy Ratnawat <chelsyratnawat2001@gmail.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250502003655.1943000-1-chelsyratnawat2001@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21iio: introduced iio_push_to_buffers_with_ts() that takes a data_total_len ↵Jonathan Cameron
argument. Check that data_total_len argument against iio_dev->scan_bytes. The size needs to be at least as big as the scan. It can be larger, which is typical if only part of fixed sized storage is used due to a subset of channels being enabled. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250413103443.2420727-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21misc: amd-sbi: Add support for register xferAkshay Gupta
- Provide user register access over IOCTL. Both register read and write are supported. - APML interface does not provide a synchronization method. By defining, a register access path, we use APML modules and library for all APML transactions. Without having to use external tools such as i2c-tools, which may cause race conditions. Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com> Signed-off-by: Akshay Gupta <akshay.gupta@amd.com> Link: https://lore.kernel.org/r/20250428063034.2145566-10-akshay.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21misc: amd-sbi: Add support for read MCA register protocolAkshay Gupta
- AMD provides custom protocol to read Machine Check Architecture(MCA) registers over sideband. The information is accessed for range of MCA registers by passing register address and thread ID to the protocol. MCA register read command using the register address to access Core::X86::Msr::MCG_CAP which determines the number of MCA banks. Access is read-only Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com> Signed-off-by: Akshay Gupta <akshay.gupta@amd.com> Link: https://lore.kernel.org/r/20250428063034.2145566-9-akshay.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21misc: amd-sbi: Add support for CPUID protocolAkshay Gupta
- AMD provides custom protocol to read Processor feature capabilities and configuration information through side band. The information is accessed by providing CPUID Function, extended function and thread ID to the protocol. Undefined function returns 0. Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com> Signed-off-by: Akshay Gupta <akshay.gupta@amd.com> Link: https://lore.kernel.org/r/20250428063034.2145566-8-akshay.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21misc: amd-sbi: Add support for AMD_SBI IOCTLAkshay Gupta
The present sbrmi module only support reporting power via hwmon. However, AMD data center range of processors support various system management functionality using custom protocols defined in Advanced Platform Management Link (APML) specification. Register a miscdevice, which creates a device /dev/sbrmiX with an IOCTL interface for the user space to invoke the APML Mailbox protocol, which is already defined in sbrmi_mailbox_xfer(). The APML protocols depend on a set of RMI registers. Having an IOCTL as a single entry point will help in providing synchronization among these protocols as multiple transactions on RMI register set may create race condition. Support for other protocols will be added in subsequent patches. APML mailbox protocol returns additional error codes written by SMU firmware in the out-bound register 0x37. These errors include, invalid core, message not supported over platform and others. This additional error codes can be used to provide more details to user space. Open-sourced and widely used https://github.com/amd/esmi_oob_library will continue to provide user-space programmable API. Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com> Signed-off-by: Akshay Gupta <akshay.gupta@amd.com> Link: https://lore.kernel.org/r/20250428063034.2145566-7-akshay.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21Merge patch series "netfs: Miscellaneous fixes"Christian Brauner
David Howells <dhowells@redhat.com> says: Here are some miscellaneous fixes and changes for netfslib, if you could pull them: (1) Fix an oops in write-retry due to mis-resetting the I/O iterator. (2) Fix the recording of transferred bytes for short DIO reads. (3) Fix a request's work item to not require a reference, thereby avoiding the need to get rid of it in BH/IRQ context. (4) Fix waiting and waking to be consistent about the waitqueue used. * patches from https://lore.kernel.org/20250519090707.2848510-1-dhowells@redhat.com: netfs: Fix wait/wake to be consistent about the waitqueue used netfs: Fix the request's work item to not require a ref netfs: Fix setting of transferred bytes with short DIO reads netfs: Fix oops in write-retry from mis-resetting the subreq iterator Link: https://lore.kernel.org/20250519090707.2848510-1-dhowells@redhat.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21netfs: Fix the request's work item to not require a refDavid Howells
When the netfs_io_request struct's work item is queued, it must be supplied with a ref to the work item struct to prevent it being deallocated whilst on the queue or whilst it is being processed. This is tricky to manage as we have to get a ref before we try and queue it and then we may find it's already queued and is thus already holding a ref - in which case we have to try and get rid of the ref again. The problem comes if we're in BH or IRQ context and need to drop the ref: if netfs_put_request() reduces the count to 0, we have to do the cleanup - but the cleanup may need to wait. Fix this by adding a new work item to the request, ->cleanup_work, and dispatching that when the refcount hits zero. That can then synchronously cancel any outstanding work on the main work item before doing the cleanup. Adding a new work item also deals with another problem upstream where it's sometimes changing the work func in the put function and requeuing it - which has occasionally in the past caused the cleanup to happen incorrectly. As a bonus, this allows us to get rid of the 'was_async' parameter from a bunch of functions. This indicated whether the put function might not be permitted to sleep. Fixes: 3d3c95046742 ("netfs: Provide readahead and readpage netfs helpers") Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519090707.2848510-4-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Steve French <stfrench@microsoft.com> cc: linux-cifs@vger.kernel.org cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21netfs: Fix setting of transferred bytes with short DIO readsPaulo Alcantara
A netfslib request comprises an ordered stream of subrequests that, when doing an unbuffered/DIO read, are contiguous. The subrequests may be performed in parallel, but may not be fully completed. For instance, if we try and make a 256KiB DIO read from a 3-byte file with a 64KiB rsize and 256KiB bsize, netfslib will attempt to make a read of 256KiB, broken up into four 64KiB subreads, with the expectation that the first will be short and the subsequent three be completely devoid - but we do all four on the basis that the file may have been changed by a third party. The read-collection code, however, walks through all the subreqs and advances the notion of how much data has been read in the stream to the start of each subreq plus its amount transferred (which are 3, 0, 0, 0 for the example above) - which gives an amount apparently read of 3*64KiB - which is incorrect. Fix the collection code to cut short the calculation of the transferred amount with the first short subrequest in an unbuffered read; everything beyond that must be ignored as there's a hole that cannot be filled. This applies both to shortness due to hitting the EOF and shortness due to an error. This is achieved by setting a flag on the request when we collect the first short subrequest (collection is done in ascending order). This can be tested by mounting a cifs volume with rsize=65536,bsize=262144 and doing a 256k DIO read of a very small file (e.g. 3 bytes). read() should return 3, not >3. This problem came in when netfs_read_collection() set rreq->transferred to stream->transferred, even for DIO. Prior to that, netfs_rreq_assess_dio() just went over the list and added up the subreqs till it met a short one - but now the subreqs are discarded earlier. Fixes: e2d46f2ec332 ("netfs: Change the read result collector to only use one work item") Reported-by: Nicolas Baranger <nicolas.baranger@3xo.fr> Closes: https://lore.kernel.org/all/10bec2430ed4df68bde10ed95295d093@3xo.fr/ Signed-off-by: "Paulo Alcantara (Red Hat)" <pc@manguebit.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519090707.2848510-3-dhowells@redhat.com cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused flag NETFS_RREQ_BLOCKEDMax Kellermann
NETFS_RREQ_BLOCKED was added by commit 016dc8516aec ("netfs: Implement unbuffered/DIO read support") but has never been used either. Without NETFS_RREQ_BLOCKED, NETFS_RREQ_NONBLOCK makes no sense, and thus can be removed as well. Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-12-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused flag NETFS_RREQ_DONT_UNLOCK_FOLIOSMax Kellermann
NETFS_RREQ_DONT_UNLOCK_FOLIOS has never been used ever since it was added by commit 3d3c95046742 ("netfs: Provide readahead and readpage netfs helpers"). Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-11-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21folio_queue: remove unused field `marks3`Max Kellermann
The last user was removed by commit e2d46f2ec332 ("netfs: Change the read result collector to only use one work item"). Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-10-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: declare field `proc_link` only if CONFIG_PROC_FS=yMax Kellermann
This field is only used for the "proc" filesystem. Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-9-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove `netfs_io_request.ractl`Max Kellermann
Since this field is only used by netfs_prepare_read_iterator() when called by netfs_readahead(), we can simply pass it as parameter. This shrinks the struct from 576 to 568 bytes. Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-8-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: reorder struct fields to eliminate holesMax Kellermann
This shrinks `struct netfs_io_stream` from 104 to 96 bytes and `struct netfs_io_request` from 600 to 576 bytes. [DH: Modified as the patch to turn netfs_io_request::error into a short was removed from the set] Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-7-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused enum choice NETFS_READ_HOLE_CLEARMax Kellermann
This choice was added by commit 3a11b3a86366 ("netfs: Pass more information on how to deal with a hole in the cache") but the last user was removed by commit 86b374d061ee ("netfs: Remove fs/netfs/io.c"). Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-6-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused flag NETFS_ICTX_WRITETHROUGHMax Kellermann
This flag was added by commit 41d8e7673a77 ("netfs: Implement a write-through caching option") but it was never used. Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-5-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused source NETFS_INVALID_WRITEMax Kellermann
This enum choice was added by commit 16af134ca4b7 ("netfs: Extend the netfs_io_*request structs to handle writes") and its only user was later removed by commit c245868524cc ("netfs: Remove the old writeback code"). Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-4-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21fs/netfs: remove unused flag NETFS_SREQ_SEEK_DATA_READMax Kellermann
This flag was added by commit 3d3c95046742 ("netfs: Provide readahead and readpage netfs helpers") but its only user was removed by commit 86b374d061ee ("netfs: Remove fs/netfs/io.c"). Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/20250519134813.2975312-3-dhowells@redhat.com cc: Paulo Alcantara <pc@manguebit.com> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21can: dev: add struct data_bittiming_params to group FD parametersVincent Mailhol
This is a preparation patch for the introduction of CAN XL. CAN FD and CAN XL uses similar bittiming parameters. Add one level of nesting for all the CAN FD parameters. Typically: priv->can.data_bittiming; becomes: priv->can.fd.data_bittiming; This way, the CAN XL equivalent (to be introduced later) would be: priv->can.xl.data_bittiming; Add the new struct data_bittiming_params which contains all the data bittiming parameters, including the TDC and the callback functions. This done, update all the CAN FD drivers to make use of the new layout. Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://patch.msgid.link/20250501171213.2161572-2-mailhol.vincent@wanadoo.fr [mkl: fix rcar_canfd] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-05-21nvmem: Remove unused nvmem cell table supportGeert Uytterhoeven
Board files are deprecated by DT, and the last user of nvmem_add_cell_table() was removed by commit 2af4fcc0d3574482 ("ARM: davinci: remove unused board support") in v6.3. Hence remove all support for nvmem cell tables, and update the documentation. Device drivers can still register a single cell using nvmem_add_one_cell() (which was not documented before). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Srinivas Kandagatla <srini@kernel.org> Link: https://lore.kernel.org/r/20250509122452.11827-2-srini@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21pidfs, coredump: add PIDFD_INFO_COREDUMPChristian Brauner
Extend the PIDFD_INFO_COREDUMP ioctl() with the new PIDFD_INFO_COREDUMP mask flag. This adds the @coredump_mask field to struct pidfd_info. When a task coredumps the kernel will provide the following information to userspace in @coredump_mask: * PIDFD_COREDUMPED is raised if the task did actually coredump. * PIDFD_COREDUMP_SKIP is raised if the task skipped coredumping (e.g., undumpable). * PIDFD_COREDUMP_USER is raised if this is a regular coredump and doesn't need special care by the coredump server. * PIDFD_COREDUMP_ROOT is raised if the generated coredump should be treated as sensitive and the coredump server should restrict to the generated coredump to sufficiently privileged users. The kernel guarantees that by the time the connection is made the all PIDFD_INFO_COREDUMP info is available. Link: https://lore.kernel.org/20250516-work-coredump-socket-v8-5-664f3caf2516@kernel.org Acked-by: Luca Boccassi <luca.boccassi@gmail.com> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Reviewed-by: Jann Horn <jannh@google.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21coredump: add coredump socketChristian Brauner
Coredumping currently supports two modes: (1) Dumping directly into a file somewhere on the filesystem. (2) Dumping into a pipe connected to a usermode helper process spawned as a child of the system_unbound_wq or kthreadd. For simplicity I'm mostly ignoring (1). There's probably still some users of (1) out there but processing coredumps in this way can be considered adventurous especially in the face of set*id binaries. The most common option should be (2) by now. It works by allowing userspace to put a string into /proc/sys/kernel/core_pattern like: |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h The "|" at the beginning indicates to the kernel that a pipe must be used. The path following the pipe indicator is a path to a binary that will be spawned as a usermode helper process. Any additional parameters pass information about the task that is generating the coredump to the binary that processes the coredump. In the example core_pattern shown above systemd-coredump is spawned as a usermode helper. There's various conceptual consequences of this (non-exhaustive list): - systemd-coredump is spawned with file descriptor number 0 (stdin) connected to the read-end of the pipe. All other file descriptors are closed. That specifically includes 1 (stdout) and 2 (stderr). This has already caused bugs because userspace assumed that this cannot happen (Whether or not this is a sane assumption is irrelevant.). - systemd-coredump will be spawned as a child of system_unbound_wq. So it is not a child of any userspace process and specifically not a child of PID 1. It cannot be waited upon and is in a weird hybrid upcall which are difficult for userspace to control correctly. - systemd-coredump is spawned with full kernel privileges. This necessitates all kinds of weird privilege dropping excercises in userspace to make this safe. - A new usermode helper has to be spawned for each crashing process. This series adds a new mode: (3) Dumping into an AF_UNIX socket. Userspace can set /proc/sys/kernel/core_pattern to: @/path/to/coredump.socket The "@" at the beginning indicates to the kernel that an AF_UNIX coredump socket will be used to process coredumps. The coredump socket must be located in the initial mount namespace. When a task coredumps it opens a client socket in the initial network namespace and connects to the coredump socket. - The coredump server uses SO_PEERPIDFD to get a stable handle on the connected crashing task. The retrieved pidfd will provide a stable reference even if the crashing task gets SIGKILLed while generating the coredump. - By setting core_pipe_limit non-zero userspace can guarantee that the crashing task cannot be reaped behind it's back and thus process all necessary information in /proc/<pid>. The SO_PEERPIDFD can be used to detect whether /proc/<pid> still refers to the same process. The core_pipe_limit isn't used to rate-limit connections to the socket. This can simply be done via AF_UNIX sockets directly. - The pidfd for the crashing task will grow new information how the task coredumps. - The coredump server should mark itself as non-dumpable. - A container coredump server in a separate network namespace can simply bind to another well-know address and systemd-coredump fowards coredumps to the container. - Coredumps could in the future also be handled via per-user/session coredump servers that run only with that users privileges. The coredump server listens on the coredump socket and accepts a new coredump connection. It then retrieves SO_PEERPIDFD for the client, inspects uid/gid and hands the accepted client to the users own coredump handler which runs with the users privileges only (It must of coure pay close attention to not forward crashing suid binaries.). The new coredump socket will allow userspace to not have to rely on usermode helpers for processing coredumps and provides a safer way to handle them instead of relying on super privileged coredumping helpers that have and continue to cause significant CVEs. This will also be significantly more lightweight since no fork()+exec() for the usermodehelper is required for each crashing process. The coredump server in userspace can e.g., just keep a worker pool. Link: https://lore.kernel.org/20250516-work-coredump-socket-v8-4-664f3caf2516@kernel.org Acked-by: Luca Boccassi <luca.boccassi@gmail.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Reviewed-by: Jann Horn <jannh@google.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-21futex: Use RCU_INIT_POINTER() in futex_mm_init().Sebastian Andrzej Siewior
There is no need for an explicit NULL pointer initialisation plus a comment why it is okay. RCU_INIT_POINTER() can be used for NULL initialisations and it is documented. This has been build tested with gcc version 9.3.0 (Debian 9.3.0-22) on a x86-64 defconfig. Fixes: 094ac8cff7858 ("futex: Relax the rcu_assign_pointer() assignment of mm->futex_phash in futex_mm_init()") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250517151455.1065363-4-bigeasy@linutronix.de
2025-05-21vt: add VT_GETCONSIZECSRPOS to retrieve console size and cursor positionNicolas Pitre
The console dimension and cursor position are available through the /dev/vcsa interface already. However the /dev/vcsa header format uses single-byte fields therefore those values are clamped to 255. As surprizing as this may seem, some people do use 240-column 67-row screens (a 1920x1080 monitor with 8x16 pixel fonts) which is getting close to the limit. Monitors with higher resolution are not uncommon these days (3840x2160 producing a 480x135 character display) and it is just a matter of time before someone with, say, a braille display using the Linux VT console and BRLTTY on such a screen reports a bug about missing and oddly misaligned screen content. Let's add VT_GETCONSIZECSRPOS for the retrieval of console size and cursor position without byte-sized limitations. The actual console size limit as encoded in vt.c is 32767x32767 so using a short here is appropriate. Then this can be used to get the cursor position when /dev/vcsa reports 255. The screen dimension may already be obtained using TIOCGWINSZ and adding the same information to VT_GETCONSIZECSRPOS might be redundant. However applications that care about cursor position also care about display size and having 2 separate system calls to obtain them separately is wasteful. Also, the cursor position can be queried by writing "\e[6n" to a tty and reading back the result but that may be done only by the actual application using that tty and not a sideline observer. Signed-off-by: Nicolas Pitre <npitre@baylibre.com> Link: https://lore.kernel.org/r/20250520171851.1219676-3-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21vt: bracketed paste supportNicolas Pitre
This is comprised of 3 aspects: - Take note of when applications advertise bracketed paste support via "\e[?2004h" and "\e[?2004l". - Insert bracketed paste markers ("\e[200~" and "\e[201~") around pasted content in paste_selection() when bracketed paste is active. - Add TIOCL_GETBRACKETEDPASTE to return bracketed paste status so user space daemons implementing cut-and-paste functionality (e.g. gpm, BRLTTY) may know when to insert bracketed paste markers. Link: https://en.wikipedia.org/wiki/Bracketed-paste Signed-off-by: Nicolas Pitre <npitre@baylibre.com> Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Link: https://lore.kernel.org/r/20250520171851.1219676-2-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21vt: add ucs_get_fallback()Nicolas Pitre
This is the code querying the newly introduced tables. Signed-off-by: Nicolas Pitre <npitre@baylibre.com> Link: https://lore.kernel.org/r/20250507141535.40655-7-nico@fluxnic.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21iommu/arm-smmu-qcom: Make set_stall work when the device is onConnor Abbott
Up until now we have only called the set_stall callback during initialization when the device is off. But we will soon start calling it to temporarily disable stall-on-fault when the device is on, so handle that by checking if the device is on and writing SCTLR. Signed-off-by: Connor Abbott <cwabbott0@gmail.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Link: https://lore.kernel.org/r/20250520-msm-gpu-fault-fixes-next-v8-3-fce6ee218787@gmail.com [will: Fix "mixed declarations and code" warning from sparse] Signed-off-by: Will Deacon <will@kernel.org>
2025-05-21Merge tag 'thunderbolt-for-v6.16-rc1' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next Mika writes: thunderbolt: Changes for v6.16 merge window This includes following USB4/Thunderbolt changes for the v6.16 merge window: - Enable wake on connect and disconnect over system suspend. - Add mapping between Type-C ports and USB4 ports on non-Chrome systems. - Expose tunneling related events to userspace. All these have been in linux-next with no reported issues. * tag 'thunderbolt-for-v6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: Documentation/admin-guide: Document Thunderbolt/USB4 tunneling events thunderbolt: Notify userspace about firmware CM tunneling events thunderbolt: Notify userspace about software CM tunneling events thunderbolt: Introduce domain event message handler usb: typec: Connect Type-C port with associated USB4 port thunderbolt: Add Thunderbolt/USB4 <-> USB3 match function thunderbolt: Expose usb4_port_index() to other modules thunderbolt: Fix a logic error in wake on connect thunderbolt: Use wake on connect and disconnect over suspend
2025-05-21Merge tag 'intel-gpio-v6.16-1' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next intel-gpio for v6.16-1 * Split GPIO ACPI quirks to its own file * Refactored GPIO ACPI library to shrink the code The following is an automated git shortlog grouped by driver: gpiolib: - acpi: Update file references in the Documentation and MAINTAINERS - acpi: Move quirks to a separate file - acpi: Add acpi_gpio_need_run_edge_events_on_boot() getter - acpi: Handle deferred list via new API - acpi: Make sure we fill struct acpi_gpio_info - acpi: Switch to use enum in acpi_gpio_in_ignore_list() - acpi: Use temporary variable for struct acpi_gpio_info - acpi: Deduplicate some code in __acpi_find_gpio() - acpi: Reuse struct acpi_gpio_params in struct acpi_gpio_lookup - acpi: Rename par to params for better readability - acpi: Reduce memory footprint for struct acpi_gpio_params - acpi: Remove index parameter from acpi_gpio_property_lookup() - acpi: Improve struct acpi_gpio_info memory footprint
2025-05-21pinctrl: core: add devm_pinctrl_register_mappings()Thomas Richard
Using devm_pinctrl_register_mappings(), the core can automatically unregister pinctrl mappings. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Link: https://lore.kernel.org/20250520-aaeon-up-board-pinctrl-support-v6-3-dcb3756be3c6@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>