pm24.git/kernel, branch rust-fixes-6.12

Merge tag 'bpf-next-6.12-struct-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2024-09-24T21:54:26Z

Pull bpf 'struct fd' updates from Alexei Starovoitov: "This includes struct_fd BPF changes from Al and Andrii" * tag 'bpf-next-6.12-struct-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: bpf: convert bpf_token_create() to CLASS(fd, ...) security,bpf: constify struct path in bpf_token_create() LSM hook bpf: more trivial fdget() conversions bpf: trivial conversions for fdget() bpf: switch maps to CLASS(fd, ...) bpf: factor out fetching bpf_map from FD and adding it to used_maps list bpf: switch fdget_raw() uses to CLASS(fd_raw, ...) bpf: convert __bpf_prog_get() to CLASS(fd, ...)

Merge tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2024-09-24T20:02:06Z

Pull Kbuild updates from Masahiro Yamada: - Support cross-compiling linux-headers Debian package and kernel-devel RPM package - Add support for the linux-debug Pacman package - Improve module rebuilding speed by factoring out the common code to scripts/module-common.c - Separate device tree build rules into scripts/Makefile.dtbs - Add a new script to generate modules.builtin.ranges, which is useful for tracing tools to find symbols in built-in modules - Refactor Kconfig and misc tools - Update Kbuild and Kconfig documentation * tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits) kbuild: doc: replace "gcc" in external module description kbuild: doc: describe the -C option precisely for external module builds kbuild: doc: remove the description about shipped files kbuild: doc: drop section numbering, use references in modules.rst kbuild: doc: throw out the local table of contents in modules.rst kbuild: doc: remove outdated description of the limitation on -I usage kbuild: doc: remove description about grepping CONFIG options kbuild: doc: update the description about Kbuild/Makefile split kbuild: remove unnecessary export of RUST_LIB_SRC kbuild: remove append operation on cmd_ld_ko_o kconfig: cache expression values kconfig: use hash table to reuse expressions kconfig: refactor expr_eliminate_dups() kconfig: add comments to expression transformations kconfig: change some expr_*() functions to bool scripts: move hash function from scripts/kconfig/ to scripts/include/ kallsyms: change overflow variable to bool type kallsyms: squash output_address() kbuild: add install target for modules.builtin.ranges scripts: add verifier script for builtin module range data ...

Merge tag 'dma-mapping-6.12-2024-09-24' of git://git.infradead.org/users/hch/dma-mapping

2024-09-24T19:00:37Z

Pull dma-mapping fixes from Christoph Hellwig: - sort out a few issues with the direct calls to iommu-dma (Christoph Hellwig, Leon Romanovsky) * tag 'dma-mapping-6.12-2024-09-24' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: report unlimited DMA addressing in IOMMU DMA path iommu/dma: remove most stubs in iommu-dma.h dma-mapping: fix vmap and mmap of noncontiougs allocations

Merge tag 'sched_ext-for-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

2024-09-24T18:33:50Z

Pull sched_ext fixes from Tejun Heo: - Three build fixes - The fix for a stall bug introduced by a recent optimization in sched core (SM_IDLE) - Addition of /sys/kernel/sched_ext/enable_seq. While not a fix, it is a simple addition that distro people want to be able to tell whether an SCX scheduler has ever been loaded on the system * tag 'sched_ext-for-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Provide a sysfs enable_seq counter sched_ext: Fix build when !CONFIG_STACKTRACE sched, sched_ext: Disable SM_IDLE/rq empty path when scx_enabled() sched: Put task_group::idle under CONFIG_GROUP_SCHED_WEIGHT sched: Add dummy version of sched_group_set_idle()

Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

2024-09-23T19:47:06Z

Pull pci updates from Bjorn Helgaas: "Enumeration: - Wait for device readiness after reset by polling Vendor ID and looking for Configuration RRS instead of polling the Command register and looking for non-error completions, to avoid hardware retries done for RRS on non-Vendor ID reads (Bjorn Helgaas) - Rename CRS Completion Status to RRS ('Request Retry Status') to match PCIe r6.0 spec usage (Bjorn Helgaas) - Clear LBMS bit after a manual link retrain so we don't try to retrain a link when there's no downstream device anymore (Maciej W. Rozycki) - Revert to the original link speed after retraining fails instead of leaving it restricted to 2.5GT/s, so a future device has a chance to use higher speeds (Maciej W. Rozycki) - Wait for each level of downstream bus, not just the first, to become accessible before restoring devices on that bus (Ilpo Järvinen) - Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups without having to stomp on the core's pdev->dev.groups (Lukas Wunner) Driver binding: - Export pcim_request_region(), a managed counterpart of pci_request_region(), for use by drivers (Philipp Stanner) - Export pcim_iomap_region() and deprecate pcim_iomap_regions() (Philipp Stanner) - Request the PCI BAR used by xboxvideo (Philipp Stanner) - Request and map drm/ast BARs with pcim_iomap_region() (Philipp Stanner) MSI: - Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a single IRQ line and cannot set the affinity of each MSI to a specific CPU core (Marek Vasut) - Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity() implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3, mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl, xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed' warnings (Marek Vasut) Power management: - Add pwrctl support for ATH11K inside the WCN6855 package (Konrad Dybcio) PCI device hotplug: - Remove unnecessary hpc_ops struct from shpchp (ngn) - Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp (weiyufeng) Virtualization: - Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson) - Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS but does provide ACS-like features (Subramanian Ananthanarayanan) IOMMU: - Add function 0 DMA alias quirk for Glenfly Arise audio function, which uses the function 0 Requester ID (WangYuli) NPEM: - Add Native PCIe Enclosure Management (NPEM) support for sysfs control of NVMe RAID storage indicators (ok/fail/locate/ rebuild/etc) (Mariusz Tkaczyk) - Add support for the ACPI _DSM PCIe SSD status LED management, which is functionally similar to NPEM but mediated by platform firmware (Mariusz Tkaczyk) Device trees: - Drop minItems and maxItems from ranges in PCI generic host binding since host bridges may have several MMIO and I/O port apertures (Frank Li) - Add kirin, rcar-gen2, uniphier DT binding top-level constraints for clocks (Krzysztof Kozlowski) Altera PCIe controller driver: - Convert altera DT bindings from text to YAML (Matthew Gerlach) - Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same thing and is what other drivers use (Jinjie Ruan) Broadcom STB PCIe controller driver: - Add DT binding maxItems for reset controllers (Jim Quinlan) - Use the 'bridge' reset method if described in the DT (Jim Quinlan) - Use the 'swinit' reset method if described in the DT (Jim Quinlan) - Add 'has_phy' so the existence of a 'rescal' reset controller doesn't imply software control of it (Jim Quinlan) - Add support for many inbound DMA windows (Jim Quinlan) - Rename SoC 'type' to 'soc_base' express the fact that SoCs come in families of multiple similar devices (Jim Quinlan) - Add Broadcom 7712 DT description and driver support (Jim Quinlan) - Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for maintainability (Bjorn Helgaas) Freescale i.MX6 PCIe controller driver: - Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints (Richard Zhu) - Fix a code restructuring error that caused i.MX8MM and i.MX8MP Endpoints to fail to establish link (Richard Zhu) - Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing outbound alignment requirement (Richard Zhu) - Call phy_power_off() in the .probe() error path (Frank Li) - Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also supported (Frank Li) - Manage Refclk by using SoC-specific callbacks instead of switch statements (Frank Li) - Manage core reset by using SoC-specific callbacks instead of switch statements (Frank Li) - Expand comments for erratum ERR010728 workaround (Frank Li) - Use generic PHY APIs to configure mode, speed, and submode, which is harmless for devices that implement their own internal PHY management and don't set the generic imx_pcie->phy (Frank Li) - Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver Root Complex support (Richard Zhu) Freescale Layerscape PCIe controller driver: - Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with fsl,lx2160ar2-pcie (Frank Li) - Add layerscape-pcie DT binding deprecated 'num-viewport' property to address a DT checker warning (Frank Li) - Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array (Frank Li) Loongson PCIe controller driver: - Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets (Huacai Chen) Marvell Aardvark PCIe controller driver: - Fix issue with emulating Configuration RRS for two-byte reads of Vendor ID; previously it only worked for four-byte reads (Bjorn Helgaas) MediaTek PCIe Gen3 controller driver: - Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC types (Lorenzo Bianconi) - Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi) - Add DT and driver support for Airoha EN7581 PCIe controller (Lorenzo Bianconi) Qualcomm PCIe controller driver: - Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan Ansari) - Add back DT 'vddpe-3v3-supply', which was incorrectly removed earlier (Johan Hovold) - Drop endpoint redundant masking of global IRQ events (Manivannan Sadhasivam) - Clarify unknown global IRQ message and only log it once to avoid a flood (Manivannan Sadhasivam) - Add 'linux,pci-domain' property to endpoint DT binding (Manivannan Sadhasivam) - Assign PCI domain number for endpoint controllers (Manivannan Sadhasivam) - Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for endpoint controller (Manivannan Sadhasivam) - Add global SPI interrupt for PCIe link events to DT binding (Manivannan Sadhasivam) - Add global RC interrupt handler to handle 'Link up' events and automatically enumerate hot-added devices (Manivannan Sadhasivam) - Avoid mirroring of DBI and iATU register space so it doesn't overlap BAR MMIO space (Prudhvi Yarlagadda) - Enable controller resources like PHY only after PERST# is deasserted to partially avoid the problem that the endpoint SoC crashes when accessing things when Refclk is absent (Manivannan Sadhasivam) - Add 16.0 GT/s equalization and RX lane margining settings (Shashank Babu Chinta Venkata) - Pass domain number to pci_bus_release_domain_nr() explicitly to avoid a NULL pointer dereference (Manivannan Sadhasivam) Renesas R-Car PCIe controller driver: - Make the read-only const array 'check_addr' static (Colin Ian King) - Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding (Yoshihiro Shimoda) TI DRA7xx PCIe controller driver: - Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary handler is NULL (Siddharth Vadapalli) - Handle IRQ request errors during root port and endpoint probe (Siddharth Vadapalli) TI J721E PCIe driver: - Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable the ACSPCIE module to drive Refclk for the Endpoint (Siddharth Vadapalli) - Extract the cadence link setup from cdns_pcie_host_setup() so link setup can be done separately during resume (Thomas Richard) - Add T_PERST_CLK_US definition for the mandatory delay between Refclk becoming stable and PERST# being deasserted (Thomas Richard) - Add j721e suspend and resume support (Théo Lebrun) TI Keystone PCIe controller driver: - Fix NULL pointer checking when applying MRRS limitation quirk for AM65x SR 1.0 Errata #i2037 (Dan Carpenter) Xilinx NWL PCIe controller driver: - Fix off-by-one error in INTx IRQ handler that caused INTx interrupts to be lost or delivered as the wrong interrupt (Sean Anderson) - Rate-limit misc interrupt messages (Sean Anderson) - Turn off the clock on probe failure and device removal (Sean Anderson) - Add DT binding and driver support for enabling/disabling PHYs (Sean Anderson) - Add PCIe phy bindings for the ZCU102 (Sean Anderson) Xilinx XDMA PCIe controller driver: - Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT binding and xilinx-dma-pl driver (Thippeswamy Havalige) Miscellaneous: - Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina) - Fix minor kerneldoc issues and typos (Bjorn Helgaas) - Use PCI_DEVID() macro in aer_inject() instead of open-coding it (Jinjie Ruan) - Check pcie_find_root_port() return in x86 fixups to avoid NULL pointer dereferences (Samasth Norway Ananda) - Make pci_bus_type constant (Kunwu Chan) - Remove unused declarations of __pci_pme_wakeup() and pci_vpd_release() (Yue Haibing) - Remove any leftover .*.cmd files with make clean (zhang jiao) - Remove unused BILLION macro (zhang jiao)" * tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits) PCI: Fix typos dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again tools: PCI: Remove unused BILLION macro tools: PCI: Remove .*.cmd files with make clean PCI: Pass domain number to pci_bus_release_domain_nr() explicitly PCI: dra7xx: Fix error handling when IRQ request fails in probe PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ PCI: qcom: Add RX lane margining settings for 16.0 GT/s PCI: qcom: Add equalization settings for 16.0 GT/s PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed' PCI: qcom-ep: Enable controller resources like PHY only after refclk is available PCI: Mark Creative Labs EMU20k2 INTx masking as broken dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint dt-bindings: PCI: altera: msi: Convert to YAML PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support PCI: Rename CRS Completion Status to RRS PCI: aardvark: Correct Configuration RRS checking PCI: Wait for device readiness with Configuration RRS PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings ...

sched_ext: Provide a sysfs enable_seq counter

2024-09-23T16:53:02Z

As discussed during the distro-centric session within the sched_ext Microconference at LPC 2024, introduce a sequence counter that is incremented every time a BPF scheduler is loaded. This feature can help distributions in diagnosing potential performance regressions by identifying systems where users are running (or have ran) custom BPF schedulers. Example: arighi@virtme-ng~> cat /sys/kernel/sched_ext/enable_seq 0 arighi@virtme-ng~> sudo scx_simple local=1 global=0 ^CEXIT: unregistered from user space arighi@virtme-ng~> cat /sys/kernel/sched_ext/enable_seq 1 In this way user-space tools (such as Ubuntu's apport and similar) are able to gather and include this information in bug reports. Cc: Giovanni Gherdovich Cc: Kleber Sacilotto de Souza Cc: Marcelo Henrique Cerri Cc: Phil Auld Signed-off-by: Andrea Righi Signed-off-by: Tejun Heo

sched_ext: Fix build when !CONFIG_STACKTRACE

2024-09-23T16:45:22Z

a2f4b16e736d ("sched_ext: Build fix on !CONFIG_STACKTRACE[_SUPPORT]") tried fixing build when !CONFIG_STACKTRACE but didn't so fully. Also put stack_trace_print() and stack_trace_save() inside CONFIG_STACKTRACE to fix build when !CONFIG_STACKTRACE. Signed-off-by: Tejun Heo Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202409220642.fDW2OmWc-lkp@intel.com/

Merge tag 'pull-stable-struct_fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2024-09-23T16:35:36Z

Pull 'struct fd' updates from Al Viro: "Just the 'struct fd' layout change, with conversion to accessor helpers" * tag 'pull-stable-struct_fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: add struct fd constructors, get rid of __to_fd() struct fd: representation change introduce fd_file(), convert all accessors to it.

sched, sched_ext: Disable SM_IDLE/rq empty path when scx_enabled()

2024-09-23T15:40:53Z

Disable the rq empty path when scx is enabled. SCX must consult the BPF scheduler (via the dispatch path in balance) to determine if rq is empty. This fixes stalls when scx is enabled. Signed-off-by: Pat Somaru Fixes: 3dcac251b066 ("sched/core: Introduce SM_IDLE and an idle re-entry fast-path in __schedule()") Signed-off-by: Tejun Heo

sched: Put task_group::idle under CONFIG_GROUP_SCHED_WEIGHT

2024-09-23T15:24:12Z

When build with CONFIG_GROUP_SCHED_WEIGHT && !CONFIG_FAIR_GROUP_SCHED, the idle member is not defined: kernel/sched/ext.c:3701:16: error: 'struct task_group' has no member named 'idle' 3701 | if (!tg->idle) | ^~ Fix this by putting 'idle' under new CONFIG_GROUP_SCHED_WEIGHT. tj: Move idle field upward to avoid breaking up CONFIG_FAIR_GROUP_SCHED block. Fixes: e179e80c5d4f ("sched: Introduce CONFIG_GROUP_SCHED_WEIGHT") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202409220859.UiCAoFOW-lkp@intel.com/ Signed-off-by: Yu Liao Signed-off-by: Tejun Heo