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2024-11-22Merge tag 'linux_kselftest-kunit-6.13-rc1-fixed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - fix user-after-free (UAF) bug in kunit_init_suite() - add option to kunit tool to print just the summary of test results - add option to kunit tool to print just the failed test results - fix kunit_zalloc_skb() to use user passed in gfp value instead of hardcoding GFP_KERNEL - fixe kunit_zalloc_skb() kernel doc to include allocation flags variable - update KUnit email address for Brendan Higgins - add LoongArch config to qemu_configs - allow overriding the shutdown mode from qemu config - enable shutdown in loongarch qemu_config - fix potential null dereference in kunit_device_driver_test() - fix debugfs to use IS_ERR() for alloc_string_stream() error check * tag 'linux_kselftest-kunit-6.13-rc1-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: qemu_configs: loongarch: Enable shutdown kunit: tool: Allow overriding the shutdown mode from qemu config kunit: qemu_configs: Add LoongArch config kunit: debugfs: Use IS_ERR() for alloc_string_stream() error check kunit: Fix potential null dereference in kunit_device_driver_test() MAINTAINERS: Update KUnit email address for Brendan Higgins kunit: string-stream: Fix a UAF bug in kunit_init_suite() kunit: tool: print failed tests only kunit: tool: Only print the summary kunit: skb: add gfp to kernel doc for kunit_zalloc_skb() kunit: skb: use "gfp" variable instead of hardcoding GFP_KERNEL
2024-11-21Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd updates from Jason Gunthorpe: "Several new features and uAPI for iommufd: - IOMMU_IOAS_MAP_FILE allows passing in a file descriptor as the backing memory for an iommu mapping. To date VFIO/iommufd have used VMA's and pin_user_pages(), this now allows using memfds and memfd_pin_folios(). Notably this creates a pure folio path from the memfd to the iommu page table where memory is never broken down to PAGE_SIZE. - IOMMU_IOAS_CHANGE_PROCESS moves the pinned page accounting between two processes. Combined with the above this allows iommufd to support a VMM re-start using exec() where something like qemu would exec() a new version of itself and fd pass the memfds/iommufd/etc to the new process. The memfd allows DMA access to the memory to continue while the new process is getting setup, and the CHANGE_PROCESS updates all the accounting. - Support for fault reporting to userspace on non-PRI HW, such as ARM stall-mode embedded devices. - IOMMU_VIOMMU_ALLOC introduces the concept of a HW/driver backed virtual iommu. This will be used by VMMs to access hardware features that are contained with in a VM. The first use is to inform the kernel of the virtual SID to physical SID mapping when issuing SID based invalidation on ARM. Further uses will tie HW features that are directly accessed by the VM, such as invalidation queue assignment and others. - IOMMU_VDEVICE_ALLOC informs the kernel about the mapping of virtual device to physical device within a VIOMMU. Minimially this is used to translate VM issued cache invalidation commands from virtual to physical device IDs. - Enhancements to IOMMU_HWPT_INVALIDATE and IOMMU_HWPT_ALLOC to work with the VIOMMU - ARM SMMuv3 support for nested translation. Using the VIOMMU and VDEVICE the driver can model this HW's behavior for nested translation. This includes a shared branch from Will" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (51 commits) iommu/arm-smmu-v3: Import IOMMUFD module namespace iommufd: IOMMU_IOAS_CHANGE_PROCESS selftest iommufd: Add IOMMU_IOAS_CHANGE_PROCESS iommufd: Lock all IOAS objects iommufd: Export do_update_pinned iommu/arm-smmu-v3: Support IOMMU_HWPT_INVALIDATE using a VIOMMU object iommu/arm-smmu-v3: Allow ATS for IOMMU_DOMAIN_NESTED iommu/arm-smmu-v3: Use S2FWB for NESTED domains iommu/arm-smmu-v3: Support IOMMU_DOMAIN_NESTED iommu/arm-smmu-v3: Support IOMMU_VIOMMU_ALLOC Documentation: userspace-api: iommufd: Update vDEVICE iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command iommufd/selftest: Add mock_viommu_cache_invalidate iommufd/viommu: Add iommufd_viommu_find_dev helper iommu: Add iommu_copy_struct_from_full_user_array helper iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE iommu/viommu: Add cache_invalidate to iommufd_viommu_ops iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl ...
2024-11-21Merge tag 'reiserfs_delete' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull reiserfs removal from Jan Kara: "The deprecation period of reiserfs is ending at the end of this year so it is time to remove it" * tag 'reiserfs_delete' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: reiserfs: The last commit
2024-11-21Merge tag 'net-next-6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "The most significant set of changes is the per netns RTNL. The new behavior is disabled by default, regression risk should be contained. Notably the new config knob PTP_1588_CLOCK_VMCLOCK will inherit its default value from PTP_1588_CLOCK_KVM, as the first is intended to be a more reliable replacement for the latter. Core: - Started a very large, in-progress, effort to make the RTNL lock scope per network-namespace, thus reducing the lock contention significantly in the containerized use-case, comprising: - RCU-ified some relevant slices of the FIB control path - introduce basic per netns locking helpers - namespacified the IPv4 address hash table - remove rtnl_register{,_module}() in favour of rtnl_register_many() - refactor rtnl_{new,del,set}link() moving as much validation as possible out of RTNL lock - convert all phonet doit() and dumpit() handlers to RCU - convert IPv4 addresses manipulation to per-netns RTNL - convert virtual interface creation to per-netns RTNL the per-netns lock infrastructure is guarded by the CONFIG_DEBUG_NET_SMALL_RTNL knob, disabled by default ad interim. - Introduce NAPI suspension, to efficiently switching between busy polling (NAPI processing suspended) and normal processing. - Migrate the IPv4 routing input, output and control path from direct ToS usage to DSCP macros. This is a work in progress to make ECN handling consistent and reliable. - Add drop reasons support to the IPv4 rotue input path, allowing better introspection in case of packets drop. - Make FIB seqnum lockless, dropping RTNL protection for read access. - Make inet{,v6} addresses hashing less predicable. - Allow providing timestamp OPT_ID via cmsg, to correlate TX packets and timestamps Things we sprinkled into general kernel code: - Add small file operations for debugfs, to reduce the struct ops size. - Refactoring and optimization for the implementation of page_frag API, This is a preparatory work to consolidate the page_frag implementation. Netfilter: - Optimize set element transactions to reduce memory consumption - Extended netlink error reporting for attribute parser failure. - Make legacy xtables configs user selectable, giving users the option to configure iptables without enabling any other config. - Address a lot of false-positive RCU issues, pointed by recent CI improvements. BPF: - Put xsk sockets on a struct diet and add various cleanups. Overall, this helps to bump performance by 12% for some workloads. - Extend BPF selftests to increase coverage of XDP features in combination with BPF cpumap. - Optimize and homogenize bpf_csum_diff helper for all archs and also add a batch of new BPF selftests for it. - Extend netkit with an option to delegate skb->{mark,priority} scrubbing to its BPF program. - Make the bpf_get_netns_cookie() helper available also to tc(x) BPF programs. Protocols: - Introduces 4-tuple hash for connected udp sockets, speeding-up significantly connected sockets lookup. - Add a fastpath for some TCP timers that usually expires after close, the socket lock contention. - Add inbound and outbound xfrm state caches to speed up state lookups. - Avoid sending MPTCP advertisements on stale subflows, reducing risks on loosing them. - Make neighbours table flushing more scalable, maintaining per device neigh lists. Driver API: - Introduce a unified interface to configure transmission H/W shaping, and expose it to user-space via generic-netlink. - Add support for per-NAPI config via netlink. This makes napi configuration persistent across queues removal and re-creation. Requires driver updates, currently supported drivers are: nVidia/Mellanox mlx4 and mlx5, Broadcom brcm and Intel ice. - Add ethtool support for writing SFP / PHY firmware blocks. - Track RSS context allocation from ethtool core. - Implement support for mirroring to DSA CPU port, via TC mirror offload. - Consolidate FDB updates notification, to avoid duplicates on device-specific entries. - Expose DPLL clock quality level to the user-space. - Support master-slave PHY config via device tree. Tests and tooling: - forwarding: introduce deferred commands, to simplify the cleanup phase Drivers: - Updated several drivers - Amazon vNic, Google vNic, Microsoft vNic, Intel e1000e and Broadcom Tigon3 - to use netdev-genl to link the IRQs and queues to NAPI IDs, allowing busy polling and better introspection. - Ethernet high-speed NICs: - nVidia/Mellanox: - mlx5: - a large refactor to implement support for cross E-Switch scheduling - refactor H/W conter management to let it scale better - H/W GRO cleanups - Intel (100G, ice):: - add support for ethtool reset - implement support for per TX queue H/W shaping - AMD/Solarflare: - implement per device queue stats support - Broadcom (bnxt): - improve wildcard l4proto on IPv4/IPv6 ntuple rules - Marvell Octeon: - Add representor support for each Resource Virtualization Unit (RVU) device. - Hisilicon: - add support for the BMC Gigabit Ethernet - IBM (EMAC): - driver cleanup and modernization - Cisco (VIC): - raise the queues number limit to 256 - Ethernet virtual: - Google vNIC: - implement page pool support - macsec: - inherit lower device's features and TSO limits when offloading - virtio_net: - enable premapped mode by default - support for XDP socket(AF_XDP) zerocopy TX - wireguard: - set the TSO max size to be GSO_MAX_SIZE, to aggregate larger packets. - Ethernet NICs embedded and virtual: - Broadcom ASP: - enable software timestamping - Freescale: - add enetc4 PF driver - MediaTek: Airoha SoC: - implement BQL support - RealTek r8169: - enable TSO by default on r8168/r8125 - implement extended ethtool stats - Renesas AVB: - enable TX checksum offload - Synopsys (stmmac): - support header splitting for vlan tagged packets - move common code for DWMAC4 and DWXGMAC into a separate FPE module. - add dwmac driver support for T-HEAD TH1520 SoC - Synopsys (xpcs): - driver refactor and cleanup - TI: - icssg_prueth: add VLAN offload support - Xilinx emaclite: - add clock support - Ethernet switches: - Microchip: - implement support for the lan969x Ethernet switch family - add LAN9646 switch support to KSZ DSA driver - Ethernet PHYs: - Marvel: 88q2x: enable auto negotiation - Microchip: add support for LAN865X Rev B1 and LAN867X Rev C1/C2 - PTP: - Add support for the Amazon virtual clock device - Add PtP driver for s390 clocks - WiFi: - mac80211 - EHT 1024 aggregation size for transmissions - new operation to indicate that a new interface is to be added - support radio separation of multi-band devices - move wireless extension spy implementation to libiw - Broadcom: - brcmfmac: optional LPO clock support - Microchip: - add support for Atmel WILC3000 - Qualcomm (ath12k): - firmware coredump collection support - add debugfs support for a multitude of statistics - Qualcomm (ath5k): - Arcadyan ARV45XX AR2417 & Gigaset SX76[23] AR241[34]A support - Realtek: - rtw88: 8821au and 8812au USB adapters support - rtw89: add thermal protection - rtw89: fine tune BT-coexsitence to improve user experience - rtw89: firmware secure boot for WiFi 6 chip - Bluetooth - add Qualcomm WCN785x support for ids Foxconn 0xe0fc/0xe0f3 and 0x13d3:0x3623 - add Realtek RTL8852BE support for id Foxconn 0xe123 - add MediaTek MT7920 support for wireless module ids - btintel_pcie: add handshake between driver and firmware - btintel_pcie: add recovery mechanism - btnxpuart: add GPIO support to power save feature" * tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1475 commits) mm: page_frag: fix a compile error when kernel is not compiled Documentation: tipc: fix formatting issue in tipc.rst selftests: nic_performance: Add selftest for performance of NIC driver selftests: nic_link_layer: Add selftest case for speed and duplex states selftests: nic_link_layer: Add link layer selftest for NIC driver bnxt_en: Add FW trace coredump segments to the coredump bnxt_en: Add a new ethtool -W dump flag bnxt_en: Add 2 parameters to bnxt_fill_coredump_seg_hdr() bnxt_en: Add functions to copy host context memory bnxt_en: Do not free FW log context memory bnxt_en: Manage the FW trace context memory bnxt_en: Allocate backing store memory for FW trace logs bnxt_en: Add a 'force' parameter to bnxt_free_ctx_mem() bnxt_en: Refactor bnxt_free_ctx_mem() bnxt_en: Add mem_valid bit to struct bnxt_ctx_mem_type bnxt_en: Update firmware interface spec to 1.10.3.85 selftests/bpf: Add some tests with sockmap SK_PASS bpf: fix recursive lock when verdict program return SK_PASS wireguard: device: support big tcp GSO wireguard: selftests: load nf_conntrack if not present ...
2024-11-21Merge tag 'bpf-next-6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Pull bpf updates from Alexei Starovoitov: - Add BPF uprobe session support (Jiri Olsa) - Optimize uprobe performance (Andrii Nakryiko) - Add bpf_fastcall support to helpers and kfuncs (Eduard Zingerman) - Avoid calling free_htab_elem() under hash map bucket lock (Hou Tao) - Prevent tailcall infinite loop caused by freplace (Leon Hwang) - Mark raw_tracepoint arguments as nullable (Kumar Kartikeya Dwivedi) - Introduce uptr support in the task local storage map (Martin KaFai Lau) - Stringify errno log messages in libbpf (Mykyta Yatsenko) - Add kmem_cache BPF iterator for perf's lock profiling (Namhyung Kim) - Support BPF objects of either endianness in libbpf (Tony Ambardar) - Add ksym to struct_ops trampoline to fix stack trace (Xu Kuohai) - Introduce private stack for eligible BPF programs (Yonghong Song) - Migrate samples/bpf tests to selftests/bpf test_progs (Daniel T. Lee) - Migrate test_sock to selftests/bpf test_progs (Jordan Rife) * tag 'bpf-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (152 commits) libbpf: Change hash_combine parameters from long to unsigned long selftests/bpf: Fix build error with llvm 19 libbpf: Fix memory leak in bpf_program__attach_uprobe_multi bpf: use common instruction history across all states bpf: Add necessary migrate_disable to range_tree. bpf: Do not alloc arena on unsupported arches selftests/bpf: Set test path for token/obj_priv_implicit_token_envvar selftests/bpf: Add a test for arena range tree algorithm bpf: Introduce range_tree data structure and use it in bpf arena samples/bpf: Remove unused variable in xdp2skb_meta_kern.c samples/bpf: Remove unused variables in tc_l2_redirect_kern.c bpftool: Cast variable `var` to long long bpf, x86: Propagate tailcall info only for subprogs bpf: Add kernel symbol for struct_ops trampoline bpf: Use function pointers count as struct_ops links count bpf: Remove unused member rcu from bpf_struct_ops_map selftests/bpf: Add struct_ops prog private stack tests bpf: Support private stack for struct_ops progs selftests/bpf: Add tracing prog private stack tests bpf, x86: Support private stack in jit ...
2024-11-21KVM: riscv: selftests: Add Svade and Svadu Extension to get-reg-list testYong-Xuan Wang
Update the get-reg-list test to test the Svade and Svadu Extensions are available for guest OS. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/20240726084931.28924-6-yongxuan.wang@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-11-20Merge tag 'hid-for-linus-2024111801' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID updates from Jiri Kosina: - improvement in the way hid-bpf coexists with specific drivers (others than hid-generic) that are already bound to devices (Benjamin Tissoires) - removal of three way-too-aggressive BUG_ON()s from HID drivers (He Lugang) - assorted cleanups and small code fixes to HID core (Dmitry Torokhov, Yan Zhen, Nathan Chancellor, Andy Shevchenko) - support for Corsair Void headset family (Stuart Hayhurst) - Support for Goodix GT7986U SPI (Charles Wang) - initial vendor-specific driver for Kysona, currently adding support for Kysona M600 (Lode Willems) - other assorted code cleanups and small bugfixes all over the place * tag 'hid-for-linus-2024111801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (40 commits) HID: multitouch: make mt_set_mode() less cryptic HID: hid-goodix-spi: Add OF supports dt-bindings: input: Goodix GT7986U SPI HID Touchscreen HID: hyperv: streamline driver probe to avoid devres issues HID: magicmouse: Apple Magic Trackpad 2 USB-C driver support HID: rmi: Add select RMI4_F3A in Kconfig HID: wacom: Interpret tilt data from Intuos Pro BT as signed values HID: steelseries: Add capacity_level mapping HID: steelseries: Fix battery requests stopping after some time HID: hid-goodix: Fix HID get/set feature operation overwritten problem HID: hid-goodix: Return 0 when receiving an empty HID feature package HID: bpf: drop use of Logical|Physical|UsageRange HID: bpf: Fix Rapoo M50 Plus Silent side buttons HID: bpf: Fix NKRO on Mistel MD770 HID: replace BUG_ON() with WARN_ON() HID: wacom: Set eraser status when either 'Eraser' or 'Invert' usage is set HID: Kysona: add basic online status HID: Kysona: check battery status every 5s using a workqueue HID: Kysona: Add basic battery reporting for Kysona M600 HID: Add IDs for Kysona ...
2024-11-20Merge tag 'linux_kselftest-next-6.13-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest update from Shuah Khan: "timer test: - remove duplicate defines - fixes to improve error reporting rtc test: - check rtc alarm status in alarm test resctrl test: - add array overrun checks during iMC config parsing code and when reading strings - fixes and reorganizing code" * tag 'linux_kselftest-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits) selftests/resctrl: Replace magic constants used as array size selftests/resctrl: Keep results from first test run selftests/resctrl: Do not compare performance counters and resctrl at low bandwidth selftests/resctrl: Use cache size to determine "fill_buf" buffer size selftests/resctrl: Ensure measurements skip initialization of default benchmark selftests/resctrl: Make benchmark parameter passing robust selftests/resctrl: Remove unused measurement code selftests/resctrl: Only support measured read operation selftests/resctrl: Remove "once" parameter required to be false selftests/resctrl: Make wraparound handling obvious selftests/resctrl: Protect against array overflow when reading strings selftests/resctrl: Protect against array overrun during iMC config parsing selftests/resctrl: Fix memory overflow due to unhandled wraparound selftests/resctrl: Print accurate buffer size as part of MBM results selftests/resctrl: Make functions only used in same file static selftests: Add a test mangling with uc_sigmask selftests: Rename sigaltstack to generic signal selftest: rtc: Add to check rtc alarm status for alarm related test selftests:timers: remove local CLOCKID defines selftests: timers: Remove unneeded semicolon ...
2024-11-20Merge tag 'ftrace-v6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ftrace updates from Steven Rostedt: - Restructure the function graph shadow stack to prepare it for use with kretprobes With the goal of merging the shadow stack logic of function graph and kretprobes, some more restructuring of the function shadow stack is required. Move out function graph specific fields from the fgraph infrastructure and store it on the new stack variables that can pass data from the entry callback to the exit callback. Hopefully, with this change, the merge of kretprobes to use fgraph shadow stacks will be ready by the next merge window. - Make shadow stack 4k instead of using PAGE_SIZE. Some architectures have very large PAGE_SIZE values which make its use for shadow stacks waste a lot of memory. - Give shadow stacks its own kmem cache. When function graph is started, every task on the system gets a shadow stack. In the future, shadow stacks may not be 4K in size. Have it have its own kmem cache so that whatever size it becomes will still be efficient in allocations. - Initialize profiler graph ops as it will be needed for new updates to fgraph - Convert to use guard(mutex) for several ftrace and fgraph functions - Add more comments and documentation - Show function return address in function graph tracer Add an option to show the caller of a function at each entry of the function graph tracer, similar to what the function tracer does. - Abstract out ftrace_regs from being used directly like pt_regs ftrace_regs was created to store a partial pt_regs. It holds only the registers and stack information to get to the function arguments and return values. On several archs, it is simply a wrapper around pt_regs. But some users would access ftrace_regs directly to get the pt_regs which will not work on all archs. Make ftrace_regs an abstract structure that requires all access to its fields be through accessor functions. - Show how long it takes to do function code modifications When code modification for function hooks happen, it always had the time recorded in how long it took to do the conversion. But this value was never exported. Recently the code was touched due to new ROX modification handling that caused a large slow down in doing the modifications and had a significant impact on boot times. Expose the timings in the dyn_ftrace_total_info file. This file was created a while ago to show information about memory usage and such to implement dynamic function tracing. It's also an appropriate file to store the timings of this modification as well. This will make it easier to see the impact of changes to code modification on boot up timings. - Other clean ups and small fixes * tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (22 commits) ftrace: Show timings of how long nop patching took ftrace: Use guard to take ftrace_lock in ftrace_graph_set_hash() ftrace: Use guard to take the ftrace_lock in release_probe() ftrace: Use guard to lock ftrace_lock in cache_mod() ftrace: Use guard for match_records() fgraph: Use guard(mutex)(&ftrace_lock) for unregister_ftrace_graph() fgraph: Give ret_stack its own kmem cache fgraph: Separate size of ret_stack from PAGE_SIZE ftrace: Rename ftrace_regs_return_value to ftrace_regs_get_return_value selftests/ftrace: Fix check of return value in fgraph-retval.tc test ftrace: Use arch_ftrace_regs() for ftrace_regs_*() macros ftrace: Consolidate ftrace_regs accessor functions for archs using pt_regs ftrace: Make ftrace_regs abstract from direct use fgragh: No need to invoke the function call_filter_check_discard() fgraph: Simplify return address printing in function graph tracer function_graph: Remove unnecessary initialization in ftrace_graph_ret_addr() function_graph: Support recording and printing the function return address ftrace: Have calltime be saved in the fgraph storage ftrace: Use a running sleeptime instead of saving on shadow stack fgraph: Use fgraph data to store subtime for profiler ...
2024-11-20Merge tag 'cgroup-for-6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cpu.stat now also shows niced CPU time - Freezer and cpuset optimizations - Other misc changes * tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Disable cpuset_cpumask_can_shrink() test if not load balancing cgroup/cpuset: Further optimize code if CONFIG_CPUSETS_V1 not set cgroup/cpuset: Enforce at most one rebuild_sched_domains_locked() call per operation cgroup/cpuset: Revert "Allow suppression of sched domain rebuild in update_cpumasks_hier()" MAINTAINERS: remove Zefan Li cgroup/freezer: Add cgroup CGRP_FROZEN flag update helper cgroup/freezer: Reduce redundant traversal for cgroup_freeze cgroup/bpf: only cgroup v2 can be attached by bpf programs Revert "cgroup: Fix memory leak caused by missing cgroup_bpf_offline" selftests/cgroup: Fix compile error in test_cpu.c cgroup/rstat: Selftests for niced CPU statistics cgroup/rstat: Tracking cgroup-level niced CPU time cgroup/cpuset: Fix spelling errors in file kernel/cgroup/cpuset.c
2024-11-20Merge tag 'livepatching-for-6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching update from Petr Mladek: - A new selftest for livepatching of a kprobed function * tag 'livepatching-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: selftests: livepatch: test livepatching a kprobed function selftests: livepatch: save and restore kprobe state selftests: livepatch: rename KLP_SYSFS_DIR to SYSFS_KLP_DIR
2024-11-20selftests/mount_setattr: Fix failures on 64K PAGE_SIZE kernelsMichael Ellerman
Currently the mount_setattr_test fails on machines with a 64K PAGE_SIZE, with errors such as: # RUN mount_setattr_idmapped.invalid_fd_negative ... mkfs.ext4: No space left on device while writing out and closing file system # mount_setattr_test.c:1055:invalid_fd_negative:Expected system("mkfs.ext4 -q /mnt/C/ext4.img") (256) == 0 (0) # invalid_fd_negative: Test terminated by assertion # FAIL mount_setattr_idmapped.invalid_fd_negative not ok 12 mount_setattr_idmapped.invalid_fd_negative The code creates a 100,000 byte tmpfs: ASSERT_EQ(mount("testing", "/mnt", "tmpfs", MS_NOATIME | MS_NODEV, "size=100000,mode=700"), 0); And then a little later creates a 2MB ext4 filesystem in that tmpfs: ASSERT_EQ(ftruncate(img_fd, 1024 * 2048), 0); ASSERT_EQ(system("mkfs.ext4 -q /mnt/C/ext4.img"), 0); At first glance it seems like that should never work, after all 2MB is larger than 100,000 bytes. However the filesystem image doesn't actually occupy 2MB on "disk" (actually RAM, due to tmpfs). On 4K kernels the ext4.img uses ~84KB of actual space (according to du), which just fits. However on 64K PAGE_SIZE kernels the ext4.img takes at least 256KB, which is too large to fit in the tmpfs, hence the errors. It seems fraught to rely on the ext4.img taking less space on disk than the allocated size, so instead create the tmpfs with a size of 2MB. With that all 21 tests pass on 64K PAGE_SIZE kernels. Fixes: 01eadc8dd96d ("tests: add mount_setattr() selftests") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20241115134114.1219555-1-mpe@ellerman.id.au Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-11-19Merge tag 'timers-core-2024-11-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "A rather large update for timekeeping and timers: - The final step to get rid of auto-rearming posix-timers posix-timers are currently auto-rearmed by the kernel when the signal of the timer is ignored so that the timer signal can be delivered once the corresponding signal is unignored. This requires to throttle the timer to prevent a DoS by small intervals and keeps the system pointlessly out of low power states for no value. This is a long standing non-trivial problem due to the lock order of posix-timer lock and the sighand lock along with life time issues as the timer and the sigqueue have different life time rules. Cure this by: - Embedding the sigqueue into the timer struct to have the same life time rules. Aside of that this also avoids the lookup of the timer in the signal delivery and rearm path as it's just a always valid container_of() now. - Queuing ignored timer signals onto a seperate ignored list. - Moving queued timer signals onto the ignored list when the signal is switched to SIG_IGN before it could be delivered. - Walking the ignored list when SIG_IGN is lifted and requeue the signals to the actual signal lists. This allows the signal delivery code to rearm the timer. This also required to consolidate the signal delivery rules so they are consistent across all situations. With that all self test scenarios finally succeed. - Core infrastructure for VFS multigrain timestamping This is required to allow the kernel to use coarse grained time stamps by default and switch to fine grained time stamps when inode attributes are actively observed via getattr(). These changes have been provided to the VFS tree as well, so that the VFS specific infrastructure could be built on top. - Cleanup and consolidation of the sleep() infrastructure - Move all sleep and timeout functions into one file - Rework udelay() and ndelay() into proper documented inline functions and replace the hardcoded magic numbers by proper defines. - Rework the fsleep() implementation to take the reality of the timer wheel granularity on different HZ values into account. Right now the boundaries are hard coded time ranges which fail to provide the requested accuracy on different HZ settings. - Update documentation for all sleep/timeout related functions and fix up stale documentation links all over the place - Fixup a few usage sites - Rework of timekeeping and adjtimex(2) to prepare for multiple PTP clocks A system can have multiple PTP clocks which are participating in seperate and independent PTP clock domains. So far the kernel only considers the PTP clock which is based on CLOCK TAI relevant as that's the clock which drives the timekeeping adjustments via the various user space daemons through adjtimex(2). The non TAI based clock domains are accessible via the file descriptor based posix clocks, but their usability is very limited. They can't be accessed fast as they always go all the way out to the hardware and they cannot be utilized in the kernel itself. As Time Sensitive Networking (TSN) gains traction it is required to provide fast user and kernel space access to these clocks. The approach taken is to utilize the timekeeping and adjtimex(2) infrastructure to provide this access in a similar way how the kernel provides access to clock MONOTONIC, REALTIME etc. Instead of creating a duplicated infrastructure this rework converts timekeeping and adjtimex(2) into generic functionality which operates on pointers to data structures instead of using static variables. This allows to provide time accessors and adjtimex(2) functionality for the independent PTP clocks in a subsequent step. - Consolidate hrtimer initialization hrtimers are set up by initializing the data structure and then seperately setting the callback function for historical reasons. That's an extra unnecessary step and makes Rust support less straight forward than it should be. Provide a new set of hrtimer_setup*() functions and convert the core code and a few usage sites of the less frequently used interfaces over. The bulk of the htimer_init() to hrtimer_setup() conversion is already prepared and scheduled for the next merge window. - Drivers: - Ensure that the global timekeeping clocksource is utilizing the cluster 0 timer on MIPS multi-cluster systems. Otherwise CPUs on different clusters use their cluster specific clocksource which is not guaranteed to be synchronized with other clusters. - Mostly boring cleanups, fixes, improvements and code movement" * tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits) posix-timers: Fix spurious warning on double enqueue versus do_exit() clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties clocksource/drivers/gpx: Remove redundant casts clocksource/drivers/timer-ti-dm: Fix child node refcount handling dt-bindings: timer: actions,owl-timer: convert to YAML clocksource/drivers/ralink: Add Ralink System Tick Counter driver clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource clocksource/drivers/timer-ti-dm: Don't fail probe if int not found clocksource/drivers:sp804: Make user selectable clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions hrtimers: Delete hrtimer_init_on_stack() alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack() io_uring: Switch to use hrtimer_setup_on_stack() sched/idle: Switch to use hrtimer_setup_on_stack() hrtimers: Delete hrtimer_init_sleeper_on_stack() wait: Switch to use hrtimer_setup_sleeper_on_stack() timers: Switch to use hrtimer_setup_sleeper_on_stack() net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack() futex: Switch to use hrtimer_setup_sleeper_on_stack() fs/aio: Switch to use hrtimer_setup_sleeper_on_stack() ...
2024-11-19kunit: qemu_configs: loongarch: Enable shutdownThomas Weißschuh
QEMU for LoongArch does not yet support shutdown/restart through ACPI. Use the pvpanic driver to enable shutdowns. This requires 9.1.0 for shutdown support in pvpanic, but that is the requirement of kunit on LoongArch anyways. Link: https://lore.kernel.org/r/20241111-kunit-loongarch-v2-3-7676eb5f2da3@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-11-19kunit: tool: Allow overriding the shutdown mode from qemu configThomas Weißschuh
Not all platforms support machine reboot. If it a proper reboot is not supported the machine will hang. Allow the QEMU configuration to override the necessary shutdown mode for the specific system under test. Link: https://lore.kernel.org/r/20241111-kunit-loongarch-v2-2-7676eb5f2da3@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-11-19kunit: qemu_configs: Add LoongArch configThomas Weißschuh
Add a basic config to run kunit tests on LoongArch. This requires QEMU 9.1.0 or later for the necessary direct kernel boot support. Link: https://lore.kernel.org/r/20241111-kunit-loongarch-v2-1-7676eb5f2da3@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-11-19kunit: tool: print failed tests onlyRae Moar
Add flag --failed to kunit.py to print only failed tests. This printing is done after running is over. This patch also adds the method print_test() that will also print your Test object. Before, all printing of tests occurred during parsing. This method could be useful in the future when converting to/from KTAP to this pretty-print output. Link: https://lore.kernel.org/r/20241113222406.1590372-2-rmoar@google.com Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-11-19kunit: tool: Only print the summaryDavid Gow
Allow only printing the summary at the end of a test run, rather than all individual test results. This summary will list a few failing tests if there are any. To use: ./tools/testing/kunit/kunit.py run --summary Link: https://lore.kernel.org/r/20241113222406.1590372-1-rmoar@google.com Signed-off-by: Rae Moar <rmoar@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-11-19Merge tag 'perf-core-2024-11-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull performance events updates from Ingo Molnar: "Uprobes: - Add BPF session support (Jiri Olsa) - Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko) - Massively increase uretprobe SMP scalability by SRCU-protecting the uretprobe lifetime (Andrii Nakryiko) - Kill xol_area->slot_count (Oleg Nesterov) Core facilities: - Implement targeted high-frequency profiling by adding the ability for an event to "pause" or "resume" AUX area tracing (Adrian Hunter) VM profiling/sampling: - Correct perf sampling with guest VMs (Colton Lewis) New hardware support: - x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi) Misc fixes and enhancements: - x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter) - x86/amd: Warn only on new bits set (Breno Leitao) - x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init (Jean Delvare) - uprobes: Re-order struct uprobe_task to save some space (Christophe JAILLET) - x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang) - x86/rapl: Clean up cpumask and hotplug (Kan Liang) - uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg Nesterov)" * tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) perf/core: Correct perf sampling with guest VMs perf/x86: Refactor misc flag assignments perf/powerpc: Use perf_arch_instruction_pointer() perf/core: Hoist perf_instruction_pointer() and perf_misc_flags() perf/arm: Drop unused functions uprobes: Re-order struct uprobe_task to save some space perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling perf/x86/intel/pt: Add support for pause / resume perf/core: Add aux_pause, aux_resume, aux_start_paused perf/x86/intel/pt: Fix buffer full but size is 0 case uprobes: SRCU-protect uretprobe lifetime (with timeout) uprobes: allow put_uprobe() from non-sleepable softirq context perf/x86/rapl: Clean up cpumask and hotplug perf/x86/rapl: Move the pmu allocation out of CPU hotplug uprobe: Add support for session consumer uprobe: Add data pointer to consumer handlers perf/x86/amd: Warn only on new bits set uprobes: fold xol_take_insn_slot() into xol_get_insn_slot() uprobes: kill xol_area->slot_count ...
2024-11-19Merge tag 'rcu.release.v6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux Pull RCU updates from Frederic Weisbecker: "SRCU: - Introduction of the new SRCU-lite flavour with a new pair of srcu_read_[un]lock_lite() APIs. In practice the read side using this flavour becomes lighter by removing a full memory barrier on LOCK and a full memory barrier on UNLOCK. This comes at the expense of a higher latency write side with two (in the best case of a snaphot of unused read-sides) or more RCU grace periods on the update side which now assumes by itself the whole full ordering guarantee against the LOCK/UNLOCK counters on both indexes, along with the accesses performed inside. Uretprobes is a known potential user. Note this doesn't replace the default normal flavour of SRCU which still behaves the same as usual. - Add testing of SRCU-lite through rcutorture and rcuscale - Various cleanups on the way. Fixes: - Allow short-circuiting RCU-TASKS-RUDE grace periods on architectures that have sane noinstr boundaries forbidding tracing on low-level idle and kernel entry code. RCU-TASKS is enough on such configurations because it involves an RCU grace period that waits for all idle tasks to either schedule out voluntarily or enter into RCU unwatched noinstr code. - Allow and test start_poll_synchronize_rcu() with IRQs disabled. - Mention rcuog kthreads in relevant documentation and Kconfig help - Various fixes and consolidations rcutorture: - Add --no-affinity on tools to leave the affinity setting of guests up to the user. - Add guest_os_delay parameter to rcuscale for better warm-up control. - Fix and improve some rcuscale error handling. - Various cleanups and fixes stall: - Remove dead code - Stop dumping tasks if a stalled grace period eventually ended midway as that only produces confusing output. - Optimize detection of stalling CPUs and avoid useless node locking otherwise. NOCB: - Fix rcu_barrier() hang due to a race against callbacks deoffloading. This is not yet used, except by rcutorture, and waits for its promised cpusets interface. - Remove leftover function declaration" * tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (42 commits) rcuscale: Remove redundant WARN_ON_ONCE() splat rcuscale: Do a proper cleanup if kfree_scale_init() fails srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor srcu: Check for srcu_read_lock_lite() across all CPUs srcu: Remove smp_mb() from srcu_read_unlock_lite() rcutorture: Avoid printing cpu=-1 for no-fault RCU boost failure rcuscale: Add guest_os_delay module parameter refscale: Correct affinity check torture: Add --no-affinity parameter to kvm.sh rcu/nocb: Fix missed RCU barrier on deoffloading rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu rcu/srcutiny: don't return before reenabling preemption rcu-tasks: Remove open-coded one-byte cmpxchg() emulation doc: Remove kernel-parameters.txt entry for rcutorture.read_exit rcutorture: Test start-poll primitives with interrupts disabled rcu: Permit start_poll_synchronize_rcu*() with interrupts disabled rcu: Allow short-circuiting of synchronize_rcu_tasks_rude() doc: Add rcuog kthreads to kernel-per-CPU-kthreads.rst rcu: Add rcuog kthreads to RCU_NOCB_CPU help text rcu: Use the BITS_PER_LONG macro ...
2024-11-19Merge tag 'nolibc.2024.11.01a' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc updates from Paul McKenney: - Fix potential error due to missing #include on s390 - Compatibility with -Wmissing-fallthrough - Run qemu with more memory during tests * tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: selftests/nolibc: start qemu with 1 GiB of memory tools/nolibc: compiler: add macro __nolibc_fallthrough tools/nolibc: s390: include std.h
2024-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Merge in late fixes to prepare for the 6.13 net-next PR. Conflicts: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 721aa69e708b net: phy: convert eee_broken_modes to a linkmode bitmap https://lore.kernel.org/all/20241118135512.1039208b@canb.auug.org.au/ drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c 2160428bcb20 net: txgbe: fix null pointer to pcs 2160428bcb20 net: txgbe: remove GPIO interrupt controller Adjacent commits: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 516a5f11eb97 net: phy: respect cached advertising when re-enabling EEE Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-19mm: page_frag: fix a compile error when kernel is not compiledYunsheng Lin
page_frag test module is an out of tree module, but built using KDIR as the main kernel tree, the mm test suite is just getting skipped if newly added page_frag test module fails to compile due to kernel not yet compiled. Fix the above problem by ensuring both kernel is built first and a newer kernel which has page_frag_cache.h is used. CC: Andrew Morton <akpm@linux-foundation.org> CC: Alexander Duyck <alexanderduyck@fb.com> CC: Linux-MM <linux-mm@kvack.org> Fixes: 7fef0dec415c ("mm: page_frag: add a test module for page_frag") Fixes: 65941f10caf2 ("mm: move the page fragment allocator from page_alloc into its own file") Reported-by: Mark Brown <broonie@kernel.org> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Tested-by: Mark Brown <broonie@kernel.org> Link: https://patch.msgid.link/20241119033012.257525-1-linyunsheng@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-19selftests: nic_performance: Add selftest for performance of NIC driverMohan Prasad J
Add selftest case to check the send and receive throughput. Supported link modes between local NIC driver and partner are varied. Then send and receive throughput is captured and verified. Test uses iperf3 tool. Add iperf3 server/client function in GenerateTraffic class. Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-19selftests: nic_link_layer: Add selftest case for speed and duplex statesMohan Prasad J
Add selftest case for testing the speed and duplex state of local NIC driver and the partner based on the supported link modes obtained from the ethtool. Speed and duplex states are varied and verified using ethtool. Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-19selftests: nic_link_layer: Add link layer selftest for NIC driverMohan Prasad J
Add selftest file for the link layer tests of a NIC driver. Test for auto-negotiation is added. Add LinkConfig class for changing link layer configs. Selftest makes use of ksft modules and ethtool. Include selftest file in the Makefile. Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-18selftests/bpf: Add some tests with sockmap SK_PASSJiayuan Chen
Add a new tests in sockmap_basic.c to test SK_PASS for sockmap Signed-off-by: Jiayuan Chen <mrpre@163.com> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20241118030910.36230-3-mrpre@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-18wireguard: selftests: load nf_conntrack if not presentHangbin Liu
Some distros may not load nf_conntrack by default, which will cause subsequent nf_conntrack sets to fail. Load this module if it is not already loaded. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> [ Jason: add [[ -e ... ]] check so this works in the qemu harness. ] Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Link: https://patch.msgid.link/20241117212030.629159-4-Jason@zx2c4.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-18selftests: net: add more info to error in bpf_offloadJakub Kicinski
bpf_offload caught a spurious warning in TC recently, but the error message did not provide enough information to know what the problem is: FAIL: Found 'netdevsim' in command output, leaky extack? Add the extack to the output: FAIL: Unexpected command output, leaky extack? ('netdevsim', 'Warning: Filter with specified priority/protocol not found.') Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-18selftests: net: netlink-dumps: validation checksJakub Kicinski
The sanity checks are going to get silently cast to unsigned and always pass. Cast the sizeof to signed size. Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20241115003248.733862-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-18Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - Support for running Linux in a protected VM under the Arm Confidential Compute Architecture (CCA) - Guarded Control Stack user-space support. Current patches follow the x86 ABI of implicitly creating a shadow stack on clone(). Subsequent patches (already on the list) will add support for clone3() allowing finer-grained control of the shadow stack size and placement from libc - AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are getting close with the upcoming dpISA support) - Other arch features: - In-kernel use of the memcpy instructions, FEAT_MOPS (previously only exposed to user; uaccess support not merged yet) - MTE: hugetlbfs support and the corresponding kselftests - Optimise CRC32 using the PMULL instructions - Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG - Optimise the kernel TLB flushing to use the range operations - POE/pkey (permission overlays): further cleanups after bringing the signal handler in line with the x86 behaviour for 6.12 - arm64 perf updates: - Support for the NXP i.MX91 PMU in the existing IMX driver - Support for Ampere SoCs in the Designware PCIe PMU driver - Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC - Support for Samsung's 'Mongoose' CPU PMU - Support for PMUv3.9 finer-grained userspace counter access control - Switch back to platform_driver::remove() now that it returns 'void' - Add some missing events for the CXL PMU driver - Miscellaneous arm64 fixes/cleanups: - Page table accessors cleanup: type updates, drop unused macros, reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity check addresses before runtime P4D/PUD folding - Command line override for ID_AA64MMFR0_EL1.ECV (advertising the FEAT_ECV for the generic timers) allowing Linux to boot with firmware deployments that don't set SCTLR_EL3.ECVEn - ACPI/arm64: tighten the check for the array of platform timer structures and adjust the error handling procedure in gtdt_parse_timer_block() - Optimise the cache flush for the uprobes xol slot (skip if no change) and other uprobes/kprobes cleanups - Fix the context switching of tpidrro_el0 when kpti is enabled - Dynamic shadow call stack fixes - Sysreg updates - Various arm64 kselftest improvements * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (168 commits) arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled kselftest/arm64: Try harder to generate different keys during PAC tests kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all() arm64/ptrace: Clarify documentation of VL configuration via ptrace kselftest/arm64: Corrupt P0 in the irritator when testing SSVE acpi/arm64: remove unnecessary cast arm64/mm: Change protval as 'pteval_t' in map_range() kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c kselftest/arm64: Add FPMR coverage to fp-ptrace kselftest/arm64: Expand the set of ZA writes fp-ptrace does kselftets/arm64: Use flag bits for features in fp-ptrace assembler code kselftest/arm64: Enable build of PAC tests with LLVM=1 kselftest/arm64: Check that SVCR is 0 in signal handlers selftests/mm: Fix unused function warning for aarch64_write_signal_pkey() kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests kselftest/arm64: Fix build with stricter assemblers arm64/scs: Drop unused prototype __pi_scs_patch_vmlinux() arm64/scs: Deal with 64-bit relative offsets in FDE frames ...
2024-11-18Merge branch 'for-6.13/bpf' into for-linusJiri Kosina
- improvement of the way hid-bpf coexists with specific drivers (others than hid-generic) that are already bound to devices (Benjamin Tissoires)
2024-11-18Merge tag 'vfs-6.13.pidfs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull pidfs update from Christian Brauner: "This adds a new ioctl to retrieve information about a pidfd. A common pattern when using pidfds is having to get information about the process, which currently requires /proc being mounted, resolving the fd to a pid, and then do manual string parsing of /proc/N/status and friends. This needs to be reimplemented over and over in all userspace projects (e.g.: it has been reimplemented in systemd, dbus, dbus-daemon, polkit so far), and requires additional care in checking that the fd is still valid after having parsed the data, to avoid races. Having a programmatic API that can be used directly removes all these requirements, including having /proc mounted. As discussed at LPC24, add an ioctl with an extensible struct so that more parameters can be added later if needed. Start with returning pid/tgid/ppid and some creds unconditionally, and cgroupid optionally" * tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pidfd: add ioctl to retrieve pid info
2024-11-18Merge tag 'vfs-6.13.ovl' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull overlayfs updates from Christian Brauner: "Make overlayfs support specifying layers through file descriptors. Currently overlayfs only allows specifying layers through path names. This is inconvenient for users that want to assemble an overlayfs mount purely based on file descriptors: This enables user to specify both: fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper); fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+", NULL, fd_work); fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1); fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2); in addition to: fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+", "/work", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0); There's also a large set of new overlayfs selftests to test new features and some older properties" * tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: add test for specifying 500 lower layers selftests: add overlayfs fd mounting selftests selftests: use shared header Documentation,ovl: document new file descriptor based layers ovl: specify layers via file descriptors fs: add helper to use mount option as path or fd
2024-11-18Merge tag 'vfs-6.13.file' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs file updates from Christian Brauner: "This contains changes the changes for files for this cycle: - Introduce a new reference counting mechanism for files. As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop it has O(N^2) behaviour under contention with N concurrent operations and it is in a hot path in __fget_files_rcu(). The rcuref infrastructures remedies this problem by using an unconditional increment relying on safe- and dead zones to make this work and requiring rcu protection for the data structure in question. This not just scales better it also introduces overflow protection. However, in contrast to generic rcuref, files require a memory barrier and thus cannot rely on *_relaxed() atomic operations and also require to be built on atomic_long_t as having massive amounts of reference isn't unheard of even if it is just an attack. This adds a file specific variant instead of making this a generic library. This has been tested by various people and it gives consistent improvement up to 3-5% on workloads with loads of threads. - Add a fastpath for find_next_zero_bit(). Skip 2-levels searching via find_next_zero_bit() when there is a free slot in the word that contains the next fd. This improves pts/blogbench-1.1.0 read by 8% and write by 4% on Intel ICX 160. - Conditionally clear full_fds_bits since it's very likely that a bit in full_fds_bits has been cleared during __clear_open_fds(). This improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on Intel ICX 160. - Get rid of all lookup_*_fdget_rcu() variants. They were used to lookup files without taking a reference count. That became invalid once files were switched to SLAB_TYPESAFE_BY_RCU and now we're always taking a reference count. Switch to an already existing helper and remove the legacy variants. - Remove pointless includes of <linux/fdtable.h>. - Avoid cmpxchg() in close_files() as nobody else has a reference to the files_struct at that point. - Move close_range() into fs/file.c and fold __close_range() into it. - Cleanup calling conventions of alloc_fdtable() and expand_files(). - Merge __{set,clear}_close_on_exec() into one. - Make __set_open_fd() set cloexec as well instead of doing it in two separate steps" * tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor fs: port files to file_ref fs: add file_ref expand_files(): simplify calling conventions make __set_open_fd() set cloexec state as well fs: protect backing files with rcu file.c: merge __{set,clear}_close_on_exec() alloc_fdtable(): change calling conventions. fs/file.c: add fast path in find_next_fd() fs/file.c: conditionally clear full_fds fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd() move close_range(2) into fs/file.c, fold __close_range() into it close_files(): don't bother with xchg() remove pointless includes of <linux/fdtable.h> get rid of ...lookup...fdget_rcu() family
2024-11-16selftests/bpf: Fix build error with llvm 19Alexei Starovoitov
llvm 19 fails to compile arena self test: CLNG-BPF [test_progs] verifier_arena_large.bpf.o progs/verifier_arena_large.c:90:24: error: unsupported signed division, please convert to unsigned div/mod. 90 | pg_idx = (pg - base) / PAGE_SIZE; Though llvm <= 18 and llvm >= 20 don't have this issue, fix the test to avoid the build error. Reported-by: Jiri Olsa <olsajiri@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-16selftests/pcie_bwctrl: Create selftestsIlpo Järvinen
Create selftests for PCIe BW control through the PCIe cooling device sysfs interface. First, the BW control selftest finds the PCIe Port to test with. By default, the PCIe Port with the highest Link Speed is selected but another PCIe Port can be provided with -d parameter. The actual test steps the cur_state of the cooling device one-by-one from max_state to what the cur_state was initially. The speed change is confirmed by observing the current_link_speed for the corresponding PCIe Port. Link: https://lore.kernel.org/r/20241018144755.7875-10-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-11-15selftests: net: fdb_notify: Add a test for FDB notificationsPetr Machata
Check that only one notification is produced for various FDB edit operations. Regarding the ip_link_add() and ip_link_master() helpers. This pattern of action plus corresponding defer is bound to come up often, and a dedicated vocabulary to capture it will be handy. tunnel_create() and vlan_create() from forwarding/lib.sh are somewhat opaque and perhaps too kitchen-sinky, so I tried to go in the opposite direction with these ones, and wrapped only the bare minimum to schedule a corresponding cleanup. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/910c5880ae6d3b558d6889cbdba2be690c2615c6.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15selftests: net: lib: Add kill_processPetr Machata
A number of selftests run processes in the background and need to kill them afterwards. Instead for everyone to open-code the kill / wait / redirect mantra, add a helper in net/lib.sh. Convert existing open-code sites. Signed-off-by: Petr Machata <petrm@nvidia.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Link: https://patch.msgid.link/a9db102067d741c118f0bd93b10c75e2a34665ea.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15selftests: net: lib: Move checks from forwarding/lib.sh herePetr Machata
For logging to be useful, something has to set RET and retmsg by calling ret_set_ksft_status(). There is a suite of functions to that end in forwarding/lib: check_err, check_fail et.al. Move them to net/lib.sh so that every net test can use them. Existing lib.sh users might be using these same names for their functions. However lib.sh is always sourced near the top of the file (checked), and whatever new definitions will simply override the ones provided by lib.sh. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/f488a00dc85b8e0c1f3c71476b32b21b5189a847.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15selftests: net: lib: Move tests_run from forwarding/lib.sh herePetr Machata
It would be good to use the same mechanism for scheduling and dispatching general net tests as the many forwarding tests already use. To that end, move the logging helpers to net/lib.sh so that every net test can use them. Existing lib.sh users might be using the name themselves. However lib.sh is always sourced near the top of the file (checked), and whatever new definition will simply override the one provided by lib.sh. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/a6fc083486493425b2c61185c327845b6ce3233a.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15selftests: net: lib: Move logging from forwarding/lib.sh herePetr Machata
Many net selftests invent their own logging helpers. These really should be in a library sourced by these tests. Currently forwarding/lib.sh has a suite of perfectly fine logging helpers, but sourcing a forwarding/ library from a higher-level directory smells of layering violation. In this patch, move the logging helpers to net/lib.sh so that every net test can use them. Together with the logging helpers, it's also necessary to move pause_on_fail(), and EXIT_STATUS and RET. Existing lib.sh users might be using these same names for their functions or variables. However lib.sh is always sourced near the top of the file (checked), and whatever new definitions will simply override the ones provided by lib.sh. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/edd3785a3bd72ffbe1409300989e993ee50ae98b.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15Merge tag 'nf-24-11-14' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Update .gitignore in selftest to skip conntrack_reverse_clash, from Li Zhijian. 2) Fix conntrack_dump_flush return values, from Guan Jing. 3) syzbot found that ipset's bitmap type does not properly checks for bitmap's first ip, from Jeongjun Park. * tag 'nf-24-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: ipset: add missing range check in bitmap_ip_uadt selftests: netfilter: Fix missing return values in conntrack_dump_flush selftests: netfilter: Add missing gitignore file ==================== Link: https://patch.msgid.link/20241114125723.82229-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15Merge branches 'rcu/fixes', 'rcu/nocb', 'rcu/torture', 'rcu/stall' and ↵Frederic Weisbecker
'rcu/srcu' into rcu/dev
2024-11-14selftest: extend test_rss_context_queue_reconfigure for action additionEdward Cree
The combination of ntuple action (ring_cookie) and RSS context can cause an ntuple rule to target a higher queue than appears in any RSS indirection table or directly in the ntuple rule, since the two numbers are added together. Verify the logic that prevents reducing the queue count in this case. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/58276b800ab78c0a79c1918046ccae7fe45ba802.1731499022.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14selftest: validate RSS+ntuple filters with nonzero ring_cookieEdward Cree
Test creates an ntuple filter with 'action 2' and an RSS context whose indirection table has entries 0 and 1. Resulting traffic should go to queues 2 and 3; verify that it never hits queues 0 and 1. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/114afdf4d2867f72ed27751e8e08fe8b128a8529.1731499022.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14selftest: include dst-ip in ethtool ntuple rulesEdward Cree
sfc hardware does not support filters with only ipproto + dst-port; adding dst-ip to the flow spec allows the rss_ctx test to be run on these devices. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://patch.msgid.link/8e5d23c8f21310c23c080cc7bcd31b76f8fd3096.1731499022.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14selftests/bpf: Set test path for token/obj_priv_implicit_token_envvarIhor Solodrai
token/obj_priv_implicit_token_envvar test may fail in an environment where the process executing tests can not write to the root path. Example: https://github.com/libbpf/libbpf/actions/runs/11844507007/job/33007897936 Change default path used by the test to /tmp/bpf-token-fs, and make it runtime configurable via an environment variable. Signed-off-by: Ihor Solodrai <ihor.solodrai@pm.me> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241115003853.864397-1-ihor.solodrai@pm.me
2024-11-14Merge tag 'for-netdev' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2024-11-14 We've added 9 non-merge commits during the last 4 day(s) which contain a total of 3 files changed, 226 insertions(+), 84 deletions(-). The main changes are: 1) Fixes to bpf_msg_push/pop_data and test_sockmap. The changes has dependency on the other changes in the bpf-next/net branch, from Zijian Zhang. 2) Drop netns codes from mptcp test. Reuse the common helpers in test_progs, from Geliang Tang. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: bpf, sockmap: Fix sk_msg_reset_curr bpf, sockmap: Several fixes to bpf_msg_pop_data bpf, sockmap: Several fixes to bpf_msg_push_data selftests/bpf: Add more tests for test_txmsg_push_pop in test_sockmap selftests/bpf: Add push/pop checking for msg_verify_data in test_sockmap selftests/bpf: Fix total_bytes in msg_loop_rx in test_sockmap selftests/bpf: Fix SENDPAGE data logic in test_sockmap selftests/bpf: Add txmsg_pass to pull/push/pop in test_sockmap selftests/bpf: Drop netns helpers in mptcp ==================== Link: https://patch.msgid.link/20241114202832.3187927-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.12-rc8). Conflicts: tools/testing/selftests/net/.gitignore 252e01e68241 ("selftests: net: add netlink-dumps to .gitignore") be43a6b23829 ("selftests: ncdevmem: Move ncdevmem under drivers/net/hw") https://lore.kernel.org/all/20241113122359.1b95180a@canb.auug.org.au/ drivers/net/phy/phylink.c 671154f174e0 ("net: phylink: ensure PHY momentary link-fails are handled") 7530ea26c810 ("net: phylink: remove "using_mac_select_pcs"") Adjacent changes: drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c 5b366eae7193 ("stmmac: dwmac-intel-plat: fix call balance of tx_clk handling routines") e96321fad3ad ("net: ethernet: Switch back to struct platform_driver::remove()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-07-19 17:28:32 +0000