msm-5.15

Author	SHA1	Message	Date
Greg Kroah-Hartman	8fd5b33ea5	Merge 5.15.61 into android13-5.15-lts Changes in 5.15.61 Makefile: link with -z noexecstack --no-warn-rwx-segments x86: link vdso and boot with -z noexecstack --no-warn-rwx-segments Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING" scsi: Revert "scsi: qla2xxx: Fix disk failure to rediscover" pNFS/flexfiles: Report RDMA connection errors to the server NFSD: Clean up the show_nf_flags() macro nfsd: eliminate the NFSD_FILE_BREAK_* flags ALSA: usb-audio: Add quirk for Behringer UMC202HD ALSA: bcd2000: Fix a UAF bug on the error path of probing ALSA: hda/realtek: Add quirk for Clevo NV45PZ ALSA: hda/realtek: Add quirk for HP Spectre x360 15-eb0xxx wifi: mac80211_hwsim: fix race condition in pending packet wifi: mac80211_hwsim: add back erroneously removed cast wifi: mac80211_hwsim: use 32-bit skb cookie add barriers to buffer_uptodate and set_buffer_uptodate lockd: detect and reject lock arguments that overflow HID: hid-input: add Surface Go battery quirk HID: wacom: Only report rotation for art pen HID: wacom: Don't register pad_input for touch switch KVM: nVMX: Snapshot pre-VM-Enter BNDCFGS for !nested_run_pending case KVM: nVMX: Snapshot pre-VM-Enter DEBUGCTL for !nested_run_pending case KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 KVM: s390: pv: don't present the ecall interrupt twice KVM: x86: Split kvm_is_valid_cr4() and export only the non-vendor bits KVM: nVMX: Let userspace set nVMX MSR to any _host_ supported value KVM: nVMX: Account for KVM reserved CR4 bits in consistency checks KVM: nVMX: Inject #UD if VMXON is attempted with incompatible CR0/CR4 KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks KVM: x86: Set error code to segment selector on LLDT/LTR non-canonical #GP KVM: nVMX: Always enable TSC scaling for L2 when it was enabled for L1 KVM: x86: Tag kvm_mmu_x86_module_init() with __init KVM: x86: do not report preemption if the steal time cache is stale KVM: x86: revalidate steal time cache if MSR value changes riscv: set default pm_power_off to NULL ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model ALSA: hda/cirrus - support for iMac 12,1 model ALSA: hda/realtek: Add quirk for another Asus K42JZ model ALSA: hda/realtek: Add a quirk for HP OMEN 15 (8786) mute LED tty: vt: initialize unicode screen buffer vfs: Check the truncate maximum size in inode_newsize_ok() fs: Add missing umask strip in vfs_tmpfile thermal: sysfs: Fix cooling_device_stats_setup() error code path fbcon: Fix boundary checks for fbcon=vc:n1-n2 parameters fbcon: Fix accelerated fbdev scrolling while logo is still shown usbnet: Fix linkwatch use-after-free on disconnect fix short copy handling in copy_mc_pipe_to_iter() crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh() parisc: Fix device names in /proc/iomem parisc: Drop pa_swapper_pg_lock spinlock parisc: Check the return value of ioremap() in lba_driver_probe() parisc: io_pgetevents_time64() needs compat syscall in 32-bit compat mode riscv:uprobe fix SR_SPIE set/clear handling dt-bindings: riscv: fix SiFive l2-cache's cache-sets RISC-V: kexec: Fixup use of smp_processor_id() in preemptible context RISC-V: Fixup get incorrect user mode PC for kernel mode regs RISC-V: Fixup schedule out issue in machine_crash_shutdown() RISC-V: Add modules to virtual kernel memory layout dump rtc: rx8025: fix 12/24 hour mode detection on RX-8035 drm/gem: Properly annotate WW context on drm_gem_lock_reservations() error drm/shmem-helper: Add missing vunmap on error drm/vc4: hdmi: Disable audio if dmas property is present but empty drm/hyperv-drm: Include framebuffer and EDID headers drm/nouveau: fix another off-by-one in nvbios_addr drm/nouveau: Don't pm_runtime_put_sync(), only pm_runtime_put_autosuspend() drm/nouveau/acpi: Don't print error when we get -EINPROGRESS from pm_runtime drm/nouveau/kms: Fix failure path for creating DP connectors drm/amdgpu: Check BO's requested pinning domains against its preferred_domains drm/amdgpu: fix check in fbdev init bpf: Fix KASAN use-after-free Read in compute_effective_progs btrfs: reject log replay if there is unsupported RO compat flag mtd: rawnand: arasan: Fix clock rate in NV-DDR mtd: rawnand: arasan: Update NAND bus clock instead of system clock um: Remove straying parenthesis um: seed rng using host OS rng iio: fix iio_format_avail_range() printing for none IIO_VAL_INT iio: light: isl29028: Fix the warning in isl29028_remove() scsi: sg: Allow waiting for commands to complete on removed device scsi: qla2xxx: Fix incorrect display of max frame size scsi: qla2xxx: Zero undefined mailbox IN registers soundwire: qcom: Check device status before reading devid ksmbd: fix memory leak in smb2_handle_negotiate ksmbd: prevent out of bound read for SMB2_TREE_CONNNECT ksmbd: fix use-after-free bug in smb2_tree_disconect fuse: limit nsec fuse: ioctl: translate ENOSYS serial: mvebu-uart: uart2 error bits clearing md-raid: destroy the bitmap after destroying the thread md-raid10: fix KASAN warning mbcache: don't reclaim used entries mbcache: add functions to delete entry if unused media: [PATCH] pci: atomisp_cmd: fix three missing checks on list iterator ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr() PCI: Add defines for normal and subtractive PCI bridges powerpc/fsl-pci: Fix Class Code of PCIe Root Port powerpc/ptdump: Fix display of RW pages on FSL_BOOK3E powerpc/powernv: Avoid crashing if rng is NULL MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK coresight: Clear the connection field properly usb: typec: ucsi: Acknowledge the GET_ERROR_STATUS command completion USB: HCD: Fix URB giveback issue in tasklet function ARM: dts: uniphier: Fix USB interrupts for PXs2 SoC arm64: dts: uniphier: Fix USB interrupts for PXs3 SoC usb: dwc3: gadget: refactor dwc3_repare_one_trb usb: dwc3: gadget: fix high speed multiplier setting netfilter: nf_tables: do not allow SET_ID to refer to another table netfilter: nf_tables: do not allow CHAIN_ID to refer to another table netfilter: nf_tables: do not allow RULE_ID to refer to another chain netfilter: nf_tables: fix null deref due to zeroed list head epoll: autoremove wakers even more aggressively x86: Handle idle=nomwait cmdline properly for x86_idle arch: make TRACE_IRQFLAGS_NMI_SUPPORT generic arm64: Do not forget syscall when starting a new thread. arm64: fix oops in concurrently setting insn_emulation sysctls arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags" ext2: Add more validity checks for inode counts sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg genirq: Don't return error on missing optional irq_request_resources() irqchip/mips-gic: Only register IPI domain when SMP is enabled genirq: GENERIC_IRQ_IPI depends on SMP sched/core: Always flush pending blk_plug irqchip/mips-gic: Check the return value of ioremap() in gic_of_init() wait: Fix __wait_event_hrtimeout for RT/DL tasks ARM: dts: imx6ul: add missing properties for sram ARM: dts: imx6ul: change operating-points to uint32-matrix ARM: dts: imx6ul: fix keypad compatible ARM: dts: imx6ul: fix csi node compatible ARM: dts: imx6ul: fix lcdif node compatible ARM: dts: imx6ul: fix qspi node compatible ARM: dts: BCM5301X: Add DT for Meraki MR26 ARM: dts: ux500: Fix Codina accelerometer mounting matrix ARM: dts: ux500: Fix Gavini accelerometer mounting matrix spi: synquacer: Add missing clk_disable_unprepare() ARM: OMAP2+: display: Fix refcount leak bug ARM: OMAP2+: pdata-quirks: Fix refcount leak bug ACPI: EC: Remove duplicate ThinkPad X1 Carbon 6th entry from DMI quirks ACPI: EC: Drop the EC_FLAGS_IGNORE_DSDT_GPE quirk ACPI: PM: save NVS memory for Lenovo G40-45 ACPI: LPSS: Fix missing check in register_device_clock() ARM: dts: qcom: sdx55: Fix the IRQ trigger type for UART arm64: dts: qcom: ipq8074: fix NAND node name arm64: dts: allwinner: a64: orangepi-win: Fix LED node name ARM: shmobile: rcar-gen2: Increase refcount for new reference firmware: tegra: Fix error check return value of debugfs_create_file() hwmon: (dell-smm) Add Dell XPS 13 7390 to fan control whitelist hwmon: (sht15) Fix wrong assumptions in device remove callback PM: hibernate: defer device probing when resuming from hibernation selinux: fix memleak in security_read_state_kernel() selinux: Add boundary check in put_entry() kasan: test: Silence GCC 12 warnings drm/amdgpu: Remove one duplicated ef removal powerpc/64s: Disable stack variable initialisation for prom_init spi: spi-rspi: Fix PIO fallback on RZ platforms ARM: findbit: fix overflowing offset meson-mx-socinfo: Fix refcount leak in meson_mx_socinfo_init arm64: dts: renesas: beacon: Fix regulator node names spi: spi-altera-dfl: Fix an error handling path ARM: bcm: Fix refcount leak in bcm_kona_smc_init ACPI: processor/idle: Annotate more functions to live in cpuidle section ARM: dts: imx7d-colibri-emmc: add cpu1 supply soc: renesas: r8a779a0-sysc: Fix A2DP1 and A2CV[2357] PDR values scsi: hisi_sas: Use managed PCI functions dt-bindings: iio: accel: Add DT binding doc for ADXL355 soc: amlogic: Fix refcount leak in meson-secure-pwrc.c arm64: dts: renesas: Fix thermal-sensors on single-zone sensors x86/pmem: Fix platform-device leak in error path ARM: dts: ast2500-evb: fix board compatible ARM: dts: ast2600-evb: fix board compatible ARM: dts: ast2600-evb-a1: fix board compatible arm64: dts: mt8192: Fix idle-states nodes naming scheme arm64: dts: mt8192: Fix idle-states entry-method arm64: select TRACE_IRQFLAGS_NMI_SUPPORT arm64: cpufeature: Allow different PMU versions in ID_DFR0_EL1 locking/lockdep: Fix lockdep_init_map_() confusion arm64: dts: qcom: sc7180: Remove ipa_fw_mem node on trogdor soc: fsl: guts: machine variable might be unset block: fix infinite loop for invalid zone append ARM: dts: qcom: mdm9615: add missing PMIC GPIO reg ARM: OMAP2+: Fix refcount leak in omapdss_init_of ARM: OMAP2+: Fix refcount leak in omap3xxx_prm_late_init arm64: dts: qcom: sdm630: disable GPU by default arm64: dts: qcom: sdm630: fix the qusb2phy ref clock arm64: dts: qcom: sdm630: fix gpu's interconnect path arm64: dts: qcom: sdm636-sony-xperia-ganges-mermaid: correct sdc2 pinconf cpufreq: zynq: Fix refcount leak in zynq_get_revision regulator: qcom_smd: Fix pm8916_pldo range ACPI: APEI: Fix _EINJ vs EFI_MEMORY_SP ARM: dts: qcom-msm8974: fix irq type on blsp2_uart1 soc: qcom: ocmem: Fix refcount leak in of_get_ocmem soc: qcom: aoss: Fix refcount leak in qmp_cooling_devices_register ARM: dts: qcom: pm8841: add required thermal-sensor-cells bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe() stack: Declare {randomize_,}kstack_offset to fix Sparse warnings arm64: dts: qcom: msm8916: Fix typo in pronto remoteproc node ACPI: APEI: explicit init of HEST and GHES in apci_init() drivers/iio: Remove all strcpy() uses ACPI: VIOT: Fix ACS setup arm64: dts: qcom: sm6125: Move sdc2 pinctrl from seine-pdx201 to sm6125 arm64: dts: qcom: sm6125: Append -state suffix to pinctrl nodes arm64: dts: qcom: sm8250: add missing PCIe PHY clock-cells arm64: dts: mt7622: fix BPI-R64 WPS button arm64: tegra: Fixup SYSRAM references arm64: tegra: Update Tegra234 BPMP channel addresses arm64: tegra: Mark BPMP channels as no-memory-wc arm64: tegra: Fix SDMMC1 CD on P2888 erofs: avoid consecutive detection for Highmem memory blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created spi: Fix simplification of devm_spi_register_controller spi: tegra20-slink: fix UAF in tegra_slink_remove() hwmon: (drivetemp) Add module alias blktrace: Trace remapped requests correctly PM: domains: Ensure genpd_debugfs_dir exists before remove dm writecache: return void from functions dm writecache: count number of blocks read, not number of read bios dm writecache: count number of blocks written, not number of write bios dm writecache: count number of blocks discarded, not number of discard bios regulator: of: Fix refcount leak bug in of_get_regulation_constraints() soc: qcom: Make QCOM_RPMPD depend on PM arm64: dts: qcom: qcs404: Fix incorrect USB2 PHYs assignment irqdomain: Report irq number for NOMAP domains drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt() x86/extable: Fix ex_handler_msr() print condition selftests/seccomp: Fix compile warning when CC=clang thermal/tools/tmon: Include pthread and time headers in tmon.h dm: return early from dm_pr_call() if DM device is suspended pwm: sifive: Simplify offset calculation for PWMCMP registers pwm: sifive: Ensure the clk is enabled exactly once per running PWM pwm: sifive: Shut down hardware only after pwmchip_remove() completed pwm: lpc18xx-sct: Reduce number of devm memory allocations pwm: lpc18xx-sct: Simplify driver by not using pwm_[gs]et_chip_data() pwm: lpc18xx: Fix period handling drm/dp: Export symbol / kerneldoc fixes for DP AUX bus drm/bridge: tc358767: Move (e)DP bridge endpoint parsing into dedicated function ath10k: do not enforce interrupt trigger type drm/st7735r: Fix module autoloading for Okaya RH128128T drm/panel: Fix build error when CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20=y && CONFIG_DRM_DISPLAY_HELPER=m wifi: rtlwifi: fix error codes in rtl_debugfs_set_write_h2c() ath11k: fix netdev open race drm/mipi-dbi: align max_chunk to 2 in spi_transfer ath11k: Fix incorrect debug_mask mappings drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() drm/mediatek: Modify dsi funcs to atomic operations drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff function drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR drm/meson: encoder_hdmi: Fix refcount leak in meson_encoder_hdmi_init drm/bridge: lt9611uxc: Cancel only driver's work i2c: npcm: Remove own slave addresses 2:10 i2c: npcm: Correct slave role behavior i2c: mxs: Silence a clang warning virtio-gpu: fix a missing check to avoid NULL dereference drm/shmem-helper: Unexport drm_gem_shmem_create_with_handle() drm/shmem-helper: Export dedicated wrappers for GEM object functions drm/shmem-helper: Pass GEM shmem object in public interfaces drm/virtio: Fix NULL vs IS_ERR checking in virtio_gpu_object_shmem_init drm: adv7511: override i2c address of cec before accessing it crypto: sun8i-ss - do not allocate memory when handling hash requests crypto: sun8i-ss - fix error codes in allocate_flows() net: fix sk_wmem_schedule() and sk_rmem_schedule() errors can: netlink: allow configuring of fixed bit rates without need for do_set_bittiming callback can: netlink: allow configuring of fixed data bit rates without need for do_set_data_bittiming callback i2c: Fix a potential use after free crypto: sun8i-ss - fix infinite loop in sun8i_ss_setup_ivs() media: atmel: atmel-sama7g5-isc: fix warning in configs without OF media: tw686x: Register the irq at the end of probe media: imx-jpeg: Correct some definition according specification media: imx-jpeg: Leave a blank space before the configuration data media: imx-jpeg: Add pm-runtime support for imx-jpeg media: imx-jpeg: use NV12M to represent non contiguous NV12 media: imx-jpeg: Set V4L2_BUF_FLAG_LAST at eos media: imx-jpeg: Refactor function mxc_jpeg_parse media: imx-jpeg: Identify and handle precision correctly media: imx-jpeg: Handle source change in a function media: imx-jpeg: Support dynamic resolution change media: imx-jpeg: Align upwards buffer size media: imx-jpeg: Implement drain using v4l2-mem2mem helpers ath9k: fix use-after-free in ath9k_hif_usb_rx_cb wifi: iwlegacy: 4965: fix potential off-by-one overflow in il4965_rs_fill_link_cmd() drm/radeon: fix incorrrect SPDX-License-Identifiers rcutorture: Warn on individual rcu_torture_init() error conditions rcutorture: Don't cpuhp_remove_state() if cpuhp_setup_state() failed rcutorture: Fix ksoftirqd boosting timing and iteration test_bpf: fix incorrect netdev features crypto: ccp - During shutdown, check SEV data pointer before using drm: bridge: adv7511: Add check for mipi_dsi_driver_register media: imx-jpeg: Disable slot interrupt when frame done drm/mcde: Fix refcount leak in mcde_dsi_bind media: hdpvr: fix error value returns in hdpvr_read media: v4l2-mem2mem: prevent pollerr when last_buffer_dequeued is set media: driver/nxp/imx-jpeg: fix a unexpected return value problem media: tw686x: Fix memory leak in tw686x_video_init drm/vc4: plane: Remove subpixel positioning check drm/vc4: plane: Fix margin calculations for the right/bottom edges drm/bridge: Add a function to abstract away panels drm/vc4: dsi: Switch to devm_drm_of_get_bridge drm/vc4: Use of_device_get_match_data() drm/vc4: dsi: Release workaround buffer and DMA drm/vc4: dsi: Correct DSI divider calculations drm/vc4: dsi: Correct pixel order for DSI0 drm/vc4: dsi: Register dsi0 as the correct vc4 encoder type drm/vc4: dsi: Fix dsi0 interrupt support drm/vc4: dsi: Add correct stop condition to vc4_dsi_encoder_disable iteration drm/vc4: hdmi: Fix HPD GPIO detection drm/vc4: hdmi: Avoid full hdmi audio fifo writes drm/vc4: hdmi: Reset HDMI MISC_CONTROL register drm/vc4: hdmi: Fix timings for interlaced modes drm/vc4: hdmi: Correct HDMI timing registers for interlaced modes crypto: arm64/gcm - Select AEAD for GHASH_ARM64_CE selftests/xsk: Destroy BPF resources only when ctx refcount drops to 0 drm/rockchip: vop: Don't crash for invalid duplicate_state() drm/rockchip: Fix an error handling path rockchip_dp_probe() drm/mediatek: dpi: Remove output format of YUV drm/mediatek: dpi: Only enable dpi after the bridge is enabled drm: bridge: sii8620: fix possible off-by-one hinic: Use the bitmap API when applicable net: hinic: fix bug that ethtool get wrong stats net: hinic: avoid kernel hung in hinic_get_stats64() drm/msm/mdp5: Fix global state lock backoff crypto: hisilicon/sec - don't sleep when in softirq crypto: hisilicon - Kunpeng916 crypto driver don't sleep when in softirq media: platform: mtk-mdp: Fix mdp_ipi_comm structure alignment drm/msm: Avoid dirtyfb stalls on video mode displays (v2) drm/msm/dpu: Fix for non-visible planes mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send_msg mt76: mt7615: do not update pm stats in case of error ieee80211: add EHT 1K aggregation definitions mt76: mt7921: fix aggregation subframes setting to HE max mt76: mt7921: enlarge maximum VHT MPDU length to 11454 mediatek: mt76: mac80211: Fix missing of_node_put() in mt76_led_init() mediatek: mt76: eeprom: fix missing of_node_put() in mt76_find_power_limits_node() skmsg: Fix invalid last sg check in sk_msg_recvmsg() drm/exynos/exynos7_drm_decon: free resources when clk_set_parent() failed. tcp: make retransmitted SKB fit into the send window libbpf: Fix the name of a reused map selftests: timers: valid-adjtimex: build fix for newer toolchains selftests: timers: clocksource-switch: fix passing errors from child bpf: Fix subprog names in stack traces. fs: check FMODE_LSEEK to control internal pipe splicing media: cedrus: h265: Fix flag name media: hantro: postproc: Fix motion vector space size media: hantro: Simplify postprocessor media: hevc: Embedded indexes in RPS media: staging: media: hantro: Fix typos wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi() wifi: p54: Fix an error handling path in p54spi_probe() wifi: p54: add missing parentheses in p54_flush() selftests/bpf: fix a test for snprintf() overflow libbpf: fix an snprintf() overflow check can: pch_can: do not report txerr and rxerr during bus-off can: rcar_can: do not report txerr and rxerr during bus-off can: sja1000: do not report txerr and rxerr during bus-off can: hi311x: do not report txerr and rxerr during bus-off can: sun4i_can: do not report txerr and rxerr during bus-off can: kvaser_usb_hydra: do not report txerr and rxerr during bus-off can: kvaser_usb_leaf: do not report txerr and rxerr during bus-off can: usb_8dev: do not report txerr and rxerr during bus-off can: error: specify the values of data[5..7] of CAN error frames can: pch_can: pch_can_error(): initialize errc before using it Bluetooth: hci_intel: Add check for platform_driver_register i2c: cadence: Support PEC for SMBus block read i2c: mux-gpmux: Add of_node_put() when breaking out of loop wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()` wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue wifi: libertas: Fix possible refcount leak in if_usb_probe() media: cedrus: hevc: Add check for invalid timestamp net/mlx5e: Remove WARN_ON when trying to offload an unsupported TLS cipher/version net/mlx5e: Fix the value of MLX5E_MAX_RQ_NUM_MTTS net/mlx5: Adjust log_max_qp to be 18 at most crypto: hisilicon/hpre - don't use GFP_KERNEL to alloc mem during softirq crypto: inside-secure - Add missing MODULE_DEVICE_TABLE for of crypto: hisilicon/sec - fix auth key size error inet: add READ_ONCE(sk->sk_bound_dev_if) in INET_MATCH() ipv6: add READ_ONCE(sk->sk_bound_dev_if) in INET6_MATCH() net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set netdevsim: fib: Fix reference count leak on route deletion failure wifi: rtw88: check the return value of alloc_workqueue() iavf: Fix max_rate limiting iavf: Fix 'tc qdisc show' listing too many queues netdevsim: Avoid allocation warnings triggered from user space net: rose: fix netdev reference changes net: ionic: fix error check for vlan flags in ionic_set_nic_features() dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: usb: make USB_RTL8153_ECM non user configurable wireguard: ratelimiter: use hrtimer in selftest wireguard: allowedips: don't corrupt stack when detecting overflow HID: amd_sfh: Don't show client init failed as error when discovery fails clk: renesas: r9a06g032: Fix UART clkgrp bitsel mtd: maps: Fix refcount leak in of_flash_probe_versatile mtd: maps: Fix refcount leak in ap_flash_init mtd: rawnand: meson: Fix a potential double free issue of: check previous kernel's ima-kexec-buffer against memory bounds scsi: qla2xxx: edif: Reduce Initiator-Initiator thrashing scsi: qla2xxx: edif: Fix potential stuck session in sa update scsi: qla2xxx: edif: Reduce connection thrash scsi: qla2xxx: edif: Fix inconsistent check of db_flags scsi: qla2xxx: edif: Synchronize NPIV deletion with authentication application scsi: qla2xxx: edif: Add retry for ELS passthrough scsi: qla2xxx: edif: Fix n2n discovery issue with secure target scsi: qla2xxx: edif: Fix n2n login retry for secure device KVM: SVM: Unwind "speculative" RIP advancement if INTn injection "fails" KVM: SVM: Stuff next_rip on emulated INT3 injection if NRIPS is supported phy: samsung: exynosautov9-ufs: correct TSRV register configurations PCI: microchip: Fix refcount leak in mc_pcie_init_irq_domains() PCI: tegra194: Fix PM error handling in tegra_pcie_config_ep() HID: cp2112: prevent a buffer overflow in cp2112_xfer() mtd: sm_ftl: Fix deadlock caused by cancel_work_sync in sm_release mtd: partitions: Fix refcount leak in parse_redboot_of mtd: parsers: ofpart: Fix refcount leak in bcm4908_partitions_fw_offset mtd: st_spi_fsm: Add a clk_disable_unprepare() in .probe()'s error path PCI: mediatek-gen3: Fix refcount leak in mtk_pcie_init_irq_domains() fpga: altera-pr-ip: fix unsigned comparison with less than zero usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init() usb: xhci: tegra: Fix error check netfilter: xtables: Bring SPDX identifier back scsi: qla2xxx: edif: Send LOGO for unexpected IKE message scsi: qla2xxx: edif: Reduce disruption due to multiple app start scsi: qla2xxx: edif: Fix no login after app start scsi: qla2xxx: edif: Tear down session if keys have been removed scsi: qla2xxx: edif: Fix session thrash scsi: qla2xxx: edif: Fix no logout on delete for N2N iio: accel: bma400: Fix the scale min and max macro values platform/chrome: cros_ec: Always expose last resume result iio: accel: bma400: Reordering of header files clk: mediatek: reset: Fix written reset bit offset lib/test_hmm: avoid accessing uninitialized pages memremap: remove support for external pgmap refcounts mm/memremap: fix memunmap_pages() race with get_dev_pagemap() KVM: Don't set Accessed/Dirty bits for ZERO_PAGE mwifiex: Ignore BTCOEX events from the 88W8897 firmware mwifiex: fix sleep in atomic context bugs caused by dev_coredumpv scsi: iscsi: Allow iscsi_if_stop_conn() to be called from kernel scsi: iscsi: Add helper to remove a session from the kernel scsi: iscsi: Fix session removal on shutdown dmaengine: dw-edma: Fix eDMA Rd/Wr-channels and DMA-direction semantics mtd: dataflash: Add SPI ID table clk: qcom: camcc-sm8250: Fix halt on boot by reducing driver's init level misc: rtsx: Fix an error handling path in rtsx_pci_probe() driver core: fix potential deadlock in __driver_attach clk: qcom: clk-krait: unlock spin after mux completion clk: qcom: gcc-msm8939: Add missing SYSTEM_MM_NOC_BFDCD_CLK_SRC clk: qcom: gcc-msm8939: Fix bimc_ddr_clk_src rcgr base address clk: qcom: gcc-msm8939: Add missing system_mm_noc_bfdcd_clk_src clk: qcom: gcc-msm8939: Point MM peripherals to system_mm_noc clock usb: host: xhci: use snprintf() in xhci_decode_trb() RDMA/rxe: Fix deadlock in rxe_do_local_ops() clk: qcom: ipq8074: fix NSS core PLL-s clk: qcom: ipq8074: SW workaround for UBI32 PLL lock clk: qcom: ipq8074: fix NSS port frequency tables clk: qcom: ipq8074: set BRANCH_HALT_DELAY flag for UBI clocks clk: qcom: camcc-sdm845: Fix topology around titan_top power domain clk: qcom: camcc-sm8250: Fix topology around titan_top power domain clk: qcom: clk-rcg2: Fail Duty-Cycle configuration if MND divider is not enabled. clk: qcom: clk-rcg2: Make sure to not write d=0 to the NMD register mm/mempolicy: fix get_nodes out of bound access PCI: dwc: Stop link on host_init errors and de-initialization PCI: dwc: Add unroll iATU space support to dw_pcie_disable_atu() PCI: dwc: Disable outbound windows only for controllers using iATU PCI: dwc: Set INCREASE_REGION_SIZE flag based on limit address PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors PCI: dwc: Always enable CDM check if "snps,enable-cdm-check" exists soundwire: bus_type: fix remove and shutdown support soundwire: revisit driver bind/unbind and callbacks KVM: arm64: Don't return from void function dmaengine: sf-pdma: Add multithread support for a DMA channel PCI: endpoint: Don't stop controller when unbinding endpoint function scsi: qla2xxx: Check correct variable in qla24xx_async_gffid() intel_th: Fix a resource leak in an error handling path intel_th: msu-sink: Potential dereference of null pointer intel_th: msu: Fix vmalloced buffers binder: fix redefinition of seq_file attributes staging: rtl8192u: Fix sleep in atomic context bug in dm_fsync_timer_callback mmc: sdhci-of-esdhc: Fix refcount leak in esdhc_signal_voltage_switch mmc: mxcmmc: Silence a clang warning mmc: renesas_sdhi: Get the reset handle early in the probe memstick/ms_block: Fix some incorrect memory allocation memstick/ms_block: Fix a memory leak mmc: sdhci-of-at91: fix set_uhs_signaling rewriting of MC1R of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer mmc: block: Add single read for 4k sector cards KVM: s390: pv: leak the topmost page table when destroy fails PCI/portdrv: Don't disable AER reporting in get_port_device_capability() PCI: qcom: Set up rev 2.1.0 PARF_PHY before enabling clocks scsi: smartpqi: Fix DMA direction for RAID requests xtensa: iss/network: provide release() callback xtensa: iss: fix handling error cases in iss_net_configure() usb: gadget: udc: amd5536 depends on HAS_DMA usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc() usb: dwc3: core: Deprecate GCTL.CORESOFTRESET usb: dwc3: core: Do not perform GCTL_CORE_SOFTRESET during bootup usb: dwc3: qcom: fix missing optional irq warnings eeprom: idt_89hpesx: uninitialized data in idt_dbgfs_csr_write() phy: stm32: fix error return in stm32_usbphyc_phy_init interconnect: imx: fix max_node_id um: random: Don't initialise hwrng struct with zero RDMA/irdma: Fix a window for use-after-free RDMA/irdma: Fix VLAN connection with wildcard address RDMA/irdma: Fix setting of QP context err_rq_idx_valid field RDMA/rtrs-srv: Fix modinfo output for stringify RDMA/rtrs: Fix warning when use poll mode on client side. RDMA/rtrs: Replace duplicate check with is_pollqueue helper RDMA/rtrs: Introduce destroy_cq helper RDMA/rtrs: Do not allow sessname to contain special symbols / and . RDMA/rtrs: Rename rtrs_sess to rtrs_path RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path RDMA/rtrs-clt: Replace list_next_or_null_rr_rcu with an inline function RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr() RDMA/hns: Fix incorrect clearing of interrupt status register RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event iio: cros: Register FIFO callback after sensor is registered clk: qcom: gcc-msm8939: Fix weird field spacing in ftbl_gcc_camss_cci_clk RDMA/hfi1: fix potential memory leak in setup_base_ctxt() gpio: gpiolib-of: Fix refcount bugs in of_mm_gpiochip_add_data() HID: mcp2221: prevent a buffer overflow in mcp_smbus_write() HID: amd_sfh: Add NULL check for hid device dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t) scripts/gdb: lx-dmesg: read records individually scripts/gdb: fix 'lx-dmesg' on 32 bits arch RDMA/rxe: Fix mw bind to allow any consumer key portion mmc: cavium-octeon: Add of_node_put() when breaking out of loop mmc: cavium-thunderx: Add of_node_put() when breaking out of loop HID: alps: Declare U1_UNICORN_LEGACY support RDMA/rxe: For invalidate compare according to set keys in mr PCI: tegra194: Fix Root Port interrupt handling PCI: tegra194: Fix link up retry sequence HID: amd_sfh: Handle condition of "no sensors" USB: serial: fix tty-port initialized comments usb: cdns3: change place of 'priv_ep' assignment in cdns3_gadget_ep_dequeue(), cdns3_gadget_ep_enable() mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}() KVM: nVMX: Set UMIP bit CR4_FIXED1 MSR when emulating UMIP platform/olpc: Fix uninitialized data in debugfs write RDMA/srpt: Duplicate port name members RDMA/srpt: Introduce a reference count in struct srpt_device RDMA/srpt: Fix a use-after-free android: binder: stop saving a pointer to the VMA mm/mmap.c: fix missing call to vm_unacct_memory in mmap_region selftests: kvm: set rax before vmcall of/fdt: declared return type does not match actual return type RDMA/mlx5: Add missing check for return value in get namespace flow RDMA/rxe: Add memory barriers to kernel queues RDMA/rxe: Remove the is_user members of struct rxe_sq/rxe_rq/rxe_srq RDMA/rxe: Fix error unwind in rxe_create_qp() block/rnbd-srv: Set keep_id to true after mutex_trylock null_blk: fix ida error handling in null_add_dev() nvme: use command_id instead of req->tag in trace_nvme_complete_rq() nvme: define compat_ioctl again to unbreak 32-bit userspace. nvme: disable namespace access for unsupported metadata nvme: don't return an error from nvme_configure_metadata nvme: catch -ENODEV from nvme_revalidate_zones again block/bio: remove duplicate append pages code block: ensure iov_iter advances for added pages jbd2: fix outstanding credits assert in jbd2_journal_commit_transaction() ext4: recover csum seed of tmp_inode after migrating to extents jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted usb: cdns3: Don't use priv_dev uninitialized in cdns3_gadget_ep_enable() opp: Fix error check in dev_pm_opp_attach_genpd() ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe ASoC: samsung: Fix error handling in aries_audio_probe ASoC: imx-audmux: Silence a clang warning ASoC: mediatek: mt8173: Fix refcount leak in mt8173_rt5650_rt5676_dev_probe ASoC: mt6797-mt6351: Fix refcount leak in mt6797_mt6351_dev_probe ASoC: codecs: da7210: add check for i2c_add_driver ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe serial: 8250: Export ICR access helpers for internal use serial: 8250: dma: Allow driver operations before starting DMA transfers serial: 8250_dw: Store LSR into lsr_saved_flags in dw8250_tx_wait_empty() ASoC: codecs: msm8916-wcd-digital: move gains from SX_TLV to S8_TLV ASoC: codecs: wcd9335: move gains from SX_TLV to S8_TLV rpmsg: char: Add mutex protection for rpmsg_eptdev_open() rpmsg: mtk_rpmsg: Fix circular locking dependency remoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init selftests/livepatch: better synchronize test_klp_callbacks_busy profiling: fix shift too large makes kernel panic remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init ASoC: samsung: h1940_uda1380: include proepr GPIO consumer header powerpc/perf: Optimize clearing the pending PMI and remove WARN_ON for PMI check in power_pmu_disable ASoC: samsung: change gpiod_speaker_power and rx1950_audio from global to static variables tty: n_gsm: Delete gsmtty open SABM frame when config requester tty: n_gsm: fix user open not possible at responder until initiator open tty: n_gsm: fix tty registration before control channel open tty: n_gsm: fix wrong queuing behavior in gsm_dlci_data_output() tty: n_gsm: fix missing timer to handle stalled links tty: n_gsm: fix non flow control frames during mux flow off tty: n_gsm: fix packet re-transmission without open control channel tty: n_gsm: fix race condition in gsmld_write() tty: n_gsm: fix resource allocation order in gsm_activate_mux() ASoC: qcom: Fix missing of_node_put() in asoc_qcom_lpass_cpu_platform_probe() ASoC: imx-card: Fix DSD/PDM mclk frequency remoteproc: qcom: wcnss: Fix handling of IRQs vfio/ccw: Do not change FSM state in subchannel event serial: 8250_fsl: Don't report FE, PE and OE twice tty: n_gsm: fix wrong T1 retry count handling tty: n_gsm: fix DM command tty: n_gsm: fix missing corner cases in gsmld_poll() MIPS: vdso: Utilize __pa() for gic_pfn swiotlb: fail map correctly with failed io_tlb_default_mem ASoC: mt6359: Fix refcount leak bug serial: 8250_bcm7271: Save/restore RTS in suspend/resume iommu/exynos: Handle failed IOMMU device registration properly 9p: fix a bunch of checkpatch warnings 9p: Drop kref usage 9p: Add client parameter to p9_req_put() net: 9p: fix refcount leak in p9_read_work() error handling MIPS: Fixed __debug_virt_addr_valid() rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge kfifo: fix kfifo_to_user() return type lib/smp_processor_id: fix imbalanced instrumentation_end() call proc: fix a dentry lock race between release_task and lookup remoteproc: qcom: pas: Check if coredump is enabled remoteproc: sysmon: Wait for SSCTL service to come up mfd: t7l66xb: Drop platform disable callback mfd: max77620: Fix refcount leak in max77620_initialise_fps iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop perf tools: Fix dso_id inode generation comparison s390/dump: fix old lowcore virtual vs physical address confusion s390/maccess: fix semantics of memcpy_real() and its callers s390/crash: fix incorrect number of bytes to copy to user space s390/zcore: fix race when reading from hardware system area ASoC: fsl_asrc: force cast the asrc_format type ASoC: fsl-asoc-card: force cast the asrc_format type ASoC: fsl_easrc: use snd_pcm_format_t type for sample_format ASoC: imx-card: use snd_pcm_format_t type for asrc_format ASoC: qcom: q6dsp: Fix an off-by-one in q6adm_alloc_copp() fuse: Remove the control interface for virtio-fs ASoC: audio-graph-card: Add of_node_put() in fail path watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe() video: fbdev: amba-clcd: Fix refcount leak bugs video: fbdev: sis: fix typos in SiS_GetModeID() ASoC: mchp-spdifrx: disable end of block interrupt on failures powerpc/32: Call mmu_mark_initmem_nx() regardless of data block mapping. powerpc/32: Do not allow selection of e5500 or e6500 CPUs on PPC32 powerpc/iommu: Fix iommu_table_in_use for a small default DMA window case powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias tty: serial: fsl_lpuart: correct the count of break characters s390/dump: fix os_info virtual vs physical address confusion s390/smp: cleanup target CPU callback starting s390/smp: cleanup control register update routines s390/maccess: rework absolute lowcore accessors s390/smp: enforce lowcore protection on CPU restart f2fs: fix to remove F2FS_COMPR_FL and tag F2FS_NOCOMP_FL at the same time powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader powerpc/xive: Fix refcount leak in xive_get_max_prio powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address perf symbol: Fail to read phdr workaround kprobes: Forbid probing on trampoline and BPF code areas x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero powerpc/pci: Fix PHB numbering when using opal-phbid genelf: Use HAVE_LIBCRYPTO_SUPPORT, not the never defined HAVE_LIBCRYPTO scripts/faddr2line: Fix vmlinux detection on arm64 sched/deadline: Merge dl_task_can_attach() and dl_cpu_busy() sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed x86/numa: Use cpumask_available instead of hardcoded NULL check video: fbdev: arkfb: Fix a divide-by-zero bug in ark_set_pixclock() tools/thermal: Fix possible path truncations sched: Fix the check of nr_running at queue wakelist sched: Remove the limitation of WF_ON_CPU on wakelist if wakee cpu is idle sched/core: Do not requeue task on CPU excluded from cpus_mask x86/entry: Build thunk_$(BITS) only if CONFIG_PREEMPTION=y f2fs: allow compression for mmap files in compress_mode=user f2fs: do not allow to decompress files have FI_COMPRESS_RELEASED video: fbdev: vt8623fb: Check the size of screen before memset_io() video: fbdev: arkfb: Check the size of screen before memset_io() video: fbdev: s3fb: Check the size of screen before memset_io() scsi: ufs: core: Correct ufshcd_shutdown() flow scsi: zfcp: Fix missing auto port scan and thus missing target ports scsi: qla2xxx: Fix imbalance vha->vref_count scsi: qla2xxx: Fix discovery issues in FC-AL topology scsi: qla2xxx: Turn off multi-queue for 8G adapters scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts scsi: qla2xxx: Fix excessive I/O error messages by default scsi: qla2xxx: Fix erroneous mailbox timeout after PCI error injection scsi: qla2xxx: Wind down adapter after PCIe error scsi: qla2xxx: Fix losing FCP-2 targets on long port disable with I/Os scsi: qla2xxx: Fix losing target when it reappears during delete scsi: qla2xxx: Fix losing FCP-2 targets during port perturbation tests x86/bugs: Enable STIBP for IBPB mitigated RETBleed ftrace/x86: Add back ftrace_expected assignment x86/kprobes: Update kcb status flag after singlestepping x86/olpc: fix 'logical not is only applied to the left hand side' SMB3: fix lease break timeout when multiple deferred close handles for the same file. posix-cpu-timers: Cleanup CPU timers before freeing them during exec Input: gscps2 - check return value of ioremap() in gscps2_probe() __follow_mount_rcu(): verify that mount_lock remains unchanged spmi: trace: fix stack-out-of-bound access in SPMI tracing functions drm/mediatek: Allow commands to be sent during video mode drm/mediatek: Keep dsi as LP00 before dcs cmds transfer crypto: blake2s - remove shash module drm/dp/mst: Read the extended DPCD capabilities during system resume drm/vc4: drv: Adopt the dma configuration from the HVS or V3D component usbnet: smsc95xx: Don't clear read-only PHY interrupt usbnet: smsc95xx: Avoid link settings race on interrupt reception usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling usbnet: smsc95xx: Fix deadlock on runtime resume firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails scsi: lpfc: Fix EEH support for NVMe I/O scsi: lpfc: SLI path split: Refactor lpfc_iocbq scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4 scsi: lpfc: SLI path split: Refactor SCSI paths scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID intel_th: pci: Add Meteor Lake-P support intel_th: pci: Add Raptor Lake-S PCH support intel_th: pci: Add Raptor Lake-S CPU support KVM: set_msr_mce: Permit guests to ignore single-bit ECC errors KVM: x86: Signal #GP, not -EPERM, on bad WRMSR(MCi_CTL/STATUS) iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE) PCI/AER: Iterate over error counters instead of error strings PCI: qcom: Power on PHY before IPQ8074 DBI register accesses serial: 8250_pci: Refactor the loop in pci_ite887x_init() serial: 8250_pci: Replace dev_() by pci_*() macros serial: 8250: Fold EndRun device support into OxSemi Tornado code serial: 8250: Add proper clock handling for OxSemi PCIe devices tty: 8250: Add support for Brainboxes PX cards. dm writecache: set a default MAX_WRITEBACK_JOBS kexec, KEYS, s390: Make use of built-in and secondary keyring for signature verification dm thin: fix use-after-free crash in dm_sm_register_threshold_callback net/9p: Initialize the iounit field during fid creation ARM: remove some dead code timekeeping: contribute wall clock to rng on time change locking/csd_lock: Change csdlock_debug from early_param to __setup block: remove the struct blk_queue_ctx forward declaration block: don't allow the same type rq_qos add more than once btrfs: ensure pages are unlocked on cow_file_range() failure btrfs: reset block group chunk force if we have to wait btrfs: properly flag filesystem with BTRFS_FEATURE_INCOMPAT_BIG_METADATA ACPI: CPPC: Do not prevent CPPC from working in the future powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 KVM: x86/pmu: Introduce the ctrl_mask value for fixed counter KVM: VMX: Mark all PERF_GLOBAL_(OVF)_CTRL bits reserved if there's no vPMU KVM: x86/pmu: Ignore pmu->global_ctrl check if vPMU doesn't support global_ctrl KVM: VMX: Add helper to check if the guest PMU has PERF_GLOBAL_CTRL KVM: nVMX: Attempt to load PERF_GLOBAL_CTRL on nVMX xfer iff it exists dm raid: fix address sanitizer warning in raid_status dm raid: fix address sanitizer warning in raid_resume tracing: Add '__rel_loc' using trace event macros tracing: Avoid -Warray-bounds warning for __rel_loc macro ext4: update s_overhead_clusters in the superblock during an on-line resize ext4: fix extent status tree race in writeback error recovery path ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h ext4: fix use-after-free in ext4_xattr_set_entry ext4: correct max_inline_xattr_value_size computing ext4: correct the misjudgment in ext4_iget_extra_inode ext4: fix warning in ext4_iomap_begin as race between bmap and write ext4: check if directory block is within i_size ext4: make sure ext4_append() always allocates new block ext4: remove EA inode entry from mbcache on inode eviction ext4: use kmemdup() to replace kmalloc + memcpy ext4: unindent codeblock in ext4_xattr_block_set() ext4: fix race when reusing xattr blocks KEYS: asymmetric: enforce SM2 signature use pkey algo tpm: eventlog: Fix section mismatch for DEBUG_SECTION_MISMATCH xen-blkback: fix persistent grants negotiation xen-blkback: Apply 'feature_persistent' parameter when connect xen-blkfront: Apply 'feature_persistent' parameter when connect powerpc: Fix eh field when calling lwarx on PPC32 tracing: Use a struct alignof to determine trace event field alignment net_sched: cls_route: remove from list when handle is 0 mac80211: fix a memory leak where sta_info is not freed tcp: fix over estimation in sk_forced_mem_schedule() crypto: lib/blake2s - reduce stack frame usage in self test Revert "mwifiex: fix sleep in atomic context bugs caused by dev_coredumpv" Revert "s390/smp: enforce lowcore protection on CPU restart" drm/bridge: tc358767: Fix (e)DP bridge endpoint parsing in dedicated function net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode drm/vc4: change vc4_dma_range_matches from a global to static tracing/perf: Avoid -Warray-bounds warning for __rel_loc macro drm/msm: Fix dirtyfb refcounting drm/meson: Fix refcount leak in meson_encoder_hdmi_init io_uring: mem-account pbuf buckets Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP" Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression drm/bridge: Move devm_drm_of_get_bridge to bridge/panel.c scsi: lpfc: Fix locking for lpfc_sli_iocbq_lookup() scsi: lpfc: Fix element offset in __lpfc_sli_release_iocbq_s4() scsi: lpfc: Resolve some cleanup issues following SLI path refactoring Linux 5.15.61 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I0849e49fb265651bf6277e4ead9c440d50ed7536	2022-08-22 14:29:30 +02:00
Jason A. Donenfeld	96ba981f09	timekeeping: contribute wall clock to rng on time change [ Upstream commit b8ac29b40183a6038919768b5d189c9bd91ce9b4 ] The rng's random_init() function contributes the real time to the rng at boot time, so that events can at least start in relation to something particular in the real world. But this clock might not yet be set that point in boot, so nothing is contributed. In addition, the relation between minor clock changes from, say, NTP, and the cycle counter is potentially useful entropic data. This commit addresses this by mixing in a time stamp on calls to settimeofday and adjtimex. No entropy is credited in doing so, so it doesn't make initialization faster, but it is still useful input to have. Fixes: `1da177e4c3` ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	2022-08-17 14:24:24 +02:00
Greg Kroah-Hartman	fdb58cc9a7	Merge 5.15.44 into android13-5.15-lts Changes in 5.15.44 HID: amd_sfh: Add support for sensor discovery KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID ice: fix crash at allocation failure ACPI: sysfs: Fix BERT error region memory mapping MAINTAINERS: co-maintain random.c MAINTAINERS: add git tree for random.c lib/crypto: blake2s: include as built-in lib/crypto: blake2s: move hmac construction into wireguard lib/crypto: sha1: re-roll loops to reduce code size lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI random: document add_hwgenerator_randomness() with other input functions random: remove unused irq_flags argument from add_interrupt_randomness() random: use BLAKE2s instead of SHA1 in extraction random: do not sign extend bytes for rotation when mixing random: do not re-init if crng_reseed completes before primary init random: mix bootloader randomness into pool random: harmonize "crng init done" messages random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs random: early initialization of ChaCha constants random: avoid superfluous call to RDRAND in CRNG extraction random: don't reset crng_init_cnt on urandom_read() random: fix typo in comments random: cleanup poolinfo abstraction random: cleanup integer types random: remove incomplete last_data logic random: remove unused extract_entropy() reserved argument random: rather than entropy_store abstraction, use global random: remove unused OUTPUT_POOL constants random: de-duplicate INPUT_POOL constants random: prepend remaining pool constants with POOL_ random: cleanup fractional entropy shift constants random: access input_pool_data directly rather than through pointer random: selectively clang-format where it makes sense random: simplify arithmetic function flow in account() random: continually use hwgenerator randomness random: access primary_pool directly rather than through pointer random: only call crng_finalize_init() for primary_crng random: use computational hash for entropy extraction random: simplify entropy debiting random: use linear min-entropy accumulation crediting random: always wake up entropy writers after extraction random: make credit_entropy_bits() always safe random: remove use_input_pool parameter from crng_reseed() random: remove batched entropy locking random: fix locking in crng_fast_load() random: use RDSEED instead of RDRAND in entropy extraction random: get rid of secondary crngs random: inline leaves of rand_initialize() random: ensure early RDSEED goes through mixer on init random: do not xor RDRAND when writing into /dev/random random: absorb fast pool into input pool after fast load random: use simpler fast key erasure flow on per-cpu keys random: use hash function for crng_slow_load() random: make more consistent use of integer types random: remove outdated INT_MAX >> 6 check in urandom_read() random: zero buffer after reading entropy from userspace random: fix locking for crng_init in crng_reseed() random: tie batched entropy generation to base_crng generation random: remove ifdef'd out interrupt bench random: remove unused tracepoints random: add proper SPDX header random: deobfuscate irq u32/u64 contributions random: introduce drain_entropy() helper to declutter crng_reseed() random: remove useless header comment random: remove whitespace and reorder includes random: group initialization wait functions random: group crng functions random: group entropy extraction functions random: group entropy collection functions random: group userspace read/write functions random: group sysctl functions random: rewrite header introductory comment random: defer fast pool mixing to worker random: do not take pool spinlock at boot random: unify early init crng load accounting random: check for crng_init == 0 in add_device_randomness() random: pull add_hwgenerator_randomness() declaration into random.h random: clear fast pool, crng, and batches in cpuhp bring up random: round-robin registers as ulong, not u32 random: only wake up writers after zap if threshold was passed random: cleanup UUID handling random: unify cycles_t and jiffies usage and types random: do crng pre-init loading in worker rather than irq random: give sysctl_random_min_urandom_seed a more sensible value random: don't let 644 read-only sysctls be written to random: replace custom notifier chain with standard one random: use SipHash as interrupt entropy accumulator random: make consistent usage of crng_ready() random: reseed more often immediately after booting random: check for signal and try earlier when generating entropy random: skip fast_init if hwrng provides large chunk of entropy random: treat bootloader trust toggle the same way as cpu trust toggle random: re-add removed comment about get_random_{u32,u64} reseeding random: mix build-time latent entropy into pool at init random: do not split fast init input in add_hwgenerator_randomness() random: do not allow user to keep crng key around on stack random: check for signal_pending() outside of need_resched() check random: check for signals every PAGE_SIZE chunk of /dev/[u]random random: allow partial reads if later user copies fail random: make random_get_entropy() return an unsigned long random: document crng_fast_key_erasure() destination possibility random: fix sysctl documentation nits init: call time_init() before rand_initialize() ia64: define get_cycles macro for arch-override s390: define get_cycles macro for arch-override parisc: define get_cycles macro for arch-override alpha: define get_cycles macro for arch-override powerpc: define get_cycles macro for arch-override timekeeping: Add raw clock fallback for random_get_entropy() m68k: use fallback for random_get_entropy() instead of zero riscv: use fallback for random_get_entropy() instead of zero mips: use fallback for random_get_entropy() instead of just c0 random arm: use fallback for random_get_entropy() instead of zero nios2: use fallback for random_get_entropy() instead of zero x86/tsc: Use fallback for random_get_entropy() instead of zero um: use fallback for random_get_entropy() instead of zero sparc: use fallback for random_get_entropy() instead of zero xtensa: use fallback for random_get_entropy() instead of zero random: insist on random_get_entropy() existing in order to simplify random: do not use batches when !crng_ready() random: use first 128 bits of input as fast init random: do not pretend to handle premature next security model random: order timer entropy functions below interrupt functions random: do not use input pool from hard IRQs random: help compiler out with fast_mix() by using simpler arguments siphash: use one source of truth for siphash permutations random: use symbolic constants for crng_init states random: avoid initializing twice in credit race random: move initialization out of reseeding hot path random: remove ratelimiting for in-kernel unseeded randomness random: use proper jiffies comparison macro random: handle latent entropy and command line from random_init() random: credit architectural init the exact amount random: use static branch for crng_ready() random: remove extern from functions in header random: use proper return types on get_random_{int,long}_wait() random: make consistent use of buf and len random: move initialization functions out of hot pages random: move randomize_page() into mm where it belongs random: unify batched entropy implementations random: convert to using fops->read_iter() random: convert to using fops->write_iter() random: wire up fops->splice_{read,write}_iter() random: check for signals after page of pool writes ALSA: ctxfi: Add SB046x PCI ID Linux 5.15.44 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I54546066f38abcce892689c492b3210ae380f851	2022-06-21 20:06:19 +02:00
Jason A. Donenfeld	82f182812f	timekeeping: Add raw clock fallback for random_get_entropy() commit 1366992e16bddd5e2d9a561687f367f9f802e2e4 upstream. The addition of random_get_entropy_fallback() provides access to whichever time source has the highest frequency, which is useful for gathering entropy on platforms without available cycle counters. It's not necessarily as good as being able to quickly access a cycle counter that the CPU has, but it's still something, even when it falls back to being jiffies-based. In the event that a given arch does not define get_cycles(), falling back to the get_cycles() default implementation that returns 0 is really not the best we can do. Instead, at least calling random_get_entropy_fallback() would be preferable, because that always needs to return _something_, even falling back to jiffies eventually. It's not as though random_get_entropy_fallback() is super high precision or guaranteed to be entropic, but basically anything that's not zero all the time is better than returning zero all the time. Finally, since random_get_entropy_fallback() is used during extremely early boot when randomizing freelists in mm_init(), it can be called before timekeeping has been initialized. In that case there really is nothing we can do; jiffies hasn't even started ticking yet. So just give up and return 0. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2022-05-30 09:29:13 +02:00
Greg Kroah-Hartman	2bde857bee	Merge 5.15.39 into android13-5.15 Changes in 5.15.39 MIPS: Fix CP0 counter erratum detection for R4k CPUs parisc: Merge model and model name into one line in /proc/cpuinfo ALSA: hda/realtek: Add quirk for Yoga Duet 7 13ITL6 speakers ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes mmc: sdhci-msm: Reset GCC_SDCC_BCR register for SDHC mmc: sunxi-mmc: Fix DMA descriptors allocated above 32 bits mmc: core: Set HS clock speed before sending HS CMD13 gpiolib: of: fix bounds check for 'gpio-reserved-ranges' x86/fpu: Prevent FPU state corruption KVM: x86/svm: Account for family 17h event renumberings in amd_pmc_perf_hw_id iommu/vt-d: Calculate mask for non-aligned flushes iommu/arm-smmu-v3: Fix size calculation in arm_smmu_mm_invalidate_range() drm/amd/display: Avoid reading audio pattern past AUDIO_CHANNELS_COUNT drm/amdgpu: do not use passthrough mode in Xen dom0 RISC-V: relocate DTB if it's outside memory region Revert "SUNRPC: attempt AF_LOCAL connect on setup" timekeeping: Mark NMI safe time accessors as notrace firewire: fix potential uaf in outbound_phy_packet_callback() firewire: remove check of list iterator against head past the loop body firewire: core: extend card->lock in fw_core_handle_bus_reset net: stmmac: disable Split Header (SPH) for Intel platforms genirq: Synchronize interrupt thread startup ASoC: da7219: Fix change notifications for tone generator frequency ASoC: wm8958: Fix change notifications for DSP controls ASoC: meson: Fix event generation for AUI ACODEC mux ASoC: meson: Fix event generation for G12A tohdmi mux ASoC: meson: Fix event generation for AUI CODEC mux s390/dasd: fix data corruption for ESE devices s390/dasd: prevent double format of tracks for ESE devices s390/dasd: Fix read for ESE with blksize < 4k s390/dasd: Fix read inconsistency for ESE DASD devices can: grcan: grcan_close(): fix deadlock can: isotp: remove re-binding of bound socket can: grcan: use ofdev->dev when allocating DMA memory can: grcan: grcan_probe(): fix broken system id check for errata workaround needs can: grcan: only use the NAPI poll budget for RX nfc: replace improper check device_is_registered() in netlink related functions nfc: nfcmrvl: main: reorder destructive operations in nfcmrvl_nci_unregister_dev to avoid bugs NFC: netlink: fix sleep in atomic bug when firmware download timeout gpio: visconti: Fix fwnode of GPIO IRQ gpio: pca953x: fix irq_stat not updated when irq is disabled (irq_mask not set) hwmon: (adt7470) Fix warning on module removal hwmon: (pmbus) disable PEC if not enabled ASoC: dmaengine: Restore NULL prepare_slave_config() callback ASoC: soc-ops: fix error handling iommu/vt-d: Drop stop marker messages iommu/dart: check return value after calling platform_get_resource() net/mlx5e: Fix trust state reset in reload net/mlx5e: Don't match double-vlan packets if cvlan is not set net/mlx5e: CT: Fix queued up restore put() executing after relevant ft release net/mlx5e: Fix the calling of update_buffer_lossy() API net/mlx5: Avoid double clear or set of sync reset requested net/mlx5: Fix deadlock in sync reset flow selftests/seccomp: Don't call read() on TTY from background pgrp SUNRPC release the transport of a relocated task with an assigned transport RDMA/siw: Fix a condition race issue in MPA request processing RDMA/irdma: Flush iWARP QP if modified to ERR from RTR state RDMA/irdma: Reduce iWARP QP destroy time RDMA/irdma: Fix possible crash due to NULL netdev in notifier NFSv4: Don't invalidate inode attributes on delegation return net: ethernet: mediatek: add missing of_node_put() in mtk_sgmii_init() net: dsa: mt7530: add missing of_node_put() in mt7530_setup() net: stmmac: dwmac-sun8i: add missing of_node_put() in sun8i_dwmac_register_mdio_mux() net: mdio: Fix ENOMEM return value in BCM6368 mux bus controller net: cpsw: add missing of_node_put() in cpsw_probe_dt() net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter() net: emaclite: Add error handling for of_address_to_resource() selftests/net: so_txtime: fix parsing of start time stamp on 32 bit systems selftests/net: so_txtime: usage(): fix documentation of default clock drm/msm/dp: remove fail safe mode related code btrfs: do not BUG_ON() on failure to update inode when setting xattr hinic: fix bug of wq out of bound access mld: respect RCU rules in ip6_mc_source() and ip6_mc_msfilter() rxrpc: Enable IPv6 checksums on transport socket selftests: mirror_gre_bridge_1q: Avoid changing PVID while interface is operational bnxt_en: Fix possible bnxt_open() failure caused by wrong RFS flag bnxt_en: Fix unnecessary dropping of RX packets selftests: ocelot: tc_flower_chains: specify conform-exceed action for policer smsc911x: allow using IRQ0 btrfs: force v2 space cache usage for subpage mount btrfs: always log symlinks in full mode drm/amdgpu: unify BO evicting method in amdgpu_ttm drm/amdgpu: explicitly check for s0ix when evicting resources drm/amdgpu: don't set s3 and s0ix at the same time drm/amdgpu: Ensure HDA function is suspended before ASIC reset gpio: mvebu: drop pwm base assignment kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU fbdev: Make fb_release() return -ENODEV if fbdev was unregistered net/mlx5: Fix slab-out-of-bounds while reading resource dump menu net/mlx5e: Lag, Fix use-after-free in fib event handler net/mlx5e: Lag, Fix fib_info pointer assignment net/mlx5e: Lag, Don't skip fib events on current dst iommu/dart: Add missing module owner to ops structure kvm: selftests: do not use bitfields larger than 32-bits for PTEs KVM: selftests: Silence compiler warning in the kvm_page_table_test x86/kvm: Preserve BSP MSR_KVM_POLL_CONTROL across suspend/resume KVM: x86: Do not change ICR on write to APIC_SELF_IPI KVM: x86/mmu: avoid NULL-pointer dereference on page freeing bugs KVM: LAPIC: Enable timer posted-interrupt only when mwait/hlt is advertised selftest/vm: verify mmap addr in mremap_test selftest/vm: verify remap destination address in mremap_test mmc: rtsx: add 74 Clocks in power on flow Revert "parisc: Mark sched_clock unstable only if clocks are not syncronized" rcu: Fix callbacks processing time limit retaining cond_resched() rcu: Apply callbacks processing time limit only on softirq PCI: pci-bridge-emul: Add description for class_revision field PCI: pci-bridge-emul: Add definitions for missing capabilities registers PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge PCI: aardvark: Clear all MSIs at setup PCI: aardvark: Comment actions in driver remove method PCI: aardvark: Disable bus mastering when unbinding driver PCI: aardvark: Mask all interrupts when unbinding driver PCI: aardvark: Fix memory leak in driver unbind PCI: aardvark: Assert PERST# when unbinding driver PCI: aardvark: Disable link training when unbinding driver PCI: aardvark: Disable common PHY when unbinding driver PCI: aardvark: Replace custom PCIE_CORE_INT_* macros with PCI_INTERRUPT_* PCI: aardvark: Rewrite IRQ code to chained IRQ handler PCI: aardvark: Check return value of generic_handle_domain_irq() when processing INTx IRQ PCI: aardvark: Make MSI irq_chip structures static driver structures PCI: aardvark: Make msi_domain_info structure a static driver structure PCI: aardvark: Use dev_fwnode() instead of of_node_to_fwnode(dev->of_node) PCI: aardvark: Refactor unmasking summary MSI interrupt PCI: aardvark: Add support for masking MSI interrupts PCI: aardvark: Fix setting MSI address PCI: aardvark: Enable MSI-X support PCI: aardvark: Add support for ERR interrupt on emulated bridge PCI: aardvark: Optimize writing PCI_EXP_RTCTL_PMEIE and PCI_EXP_RTSTA_PME on emulated bridge PCI: aardvark: Add support for PME interrupts PCI: aardvark: Fix support for PME requester on emulated bridge PCI: aardvark: Use separate INTA interrupt for emulated root bridge PCI: aardvark: Remove irq_mask_ack() callback for INTx interrupts PCI: aardvark: Don't mask irq when mapping PCI: aardvark: Drop __maybe_unused from advk_pcie_disable_phy() PCI: aardvark: Update comment about link going down after link-up Linux 5.15.39 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ic51d6d05a0d99156c6fd844786e984aff8e7386a	2022-05-18 09:38:58 +02:00
Kurt Kanzenbach	07adb69545	timekeeping: Mark NMI safe time accessors as notrace commit 2c33d775ef4c25c0e1e1cc0fd5496d02f76bfa20 upstream. Mark the CLOCK_MONOTONIC fast time accessors as notrace. These functions are used in tracing to retrieve timestamps, so they should not recurse. Fixes: `4498e7467e` ("time: Parametrize all tk_fast_mono users") Fixes: `f09cb9a180` ("time: Introduce tk_fast_raw") Reported-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220426175338.3807ca4f@gandalf.local.home/ Link: https://lore.kernel.org/r/20220428062432.61063-1-kurt@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2022-05-12 12:30:04 +02:00
weidong guan	5168caa32a	ANDROID: Add vendor hook for tk_based_time_sync android_rvh_tk_based_time_sync: to get vendor-specific time sync func Bug: 223950152 Test: build pass Signed-off-by: weidong guan <weidong.guan@unisoc.com> Change-Id: I4c540e077668bff548c55d4afba3a7bd6725497e	2022-04-06 08:31:30 -07:00
Yu Liao	c5664d5086	timekeeping: Really make sure wall_to_monotonic isn't positive commit 4e8c11b6b3f0b6a283e898344f154641eda94266 upstream. Even after commit `e1d7ba8735` ("time: Always make sure wall_to_monotonic isn't positive") it is still possible to make wall_to_monotonic positive by running the following code: int main(void) { struct timespec time; clock_gettime(CLOCK_MONOTONIC, &time); time.tv_nsec = 0; clock_settime(CLOCK_REALTIME, &time); return 0; } The reason is that the second parameter of timespec64_compare(), ts_delta, may be unnormalized because the delta is calculated with an open coded substraction which causes the comparison of tv_sec to yield the wrong result: wall_to_monotonic = { .tv_sec = -10, .tv_nsec = 900000000 } ts_delta = { .tv_sec = -9, .tv_nsec = -900000000 } That makes timespec64_compare() claim that wall_to_monotonic < ts_delta, but actually the result should be wall_to_monotonic > ts_delta. After normalization, the result of timespec64_compare() is correct because the tv_sec comparison is not longer misleading: wall_to_monotonic = { .tv_sec = -10, .tv_nsec = 900000000 } ts_delta = { .tv_sec = -10, .tv_nsec = 100000000 } Use timespec64_sub() to ensure that ts_delta is normalized, which fixes the issue. Fixes: `e1d7ba8735` ("time: Always make sure wall_to_monotonic isn't positive") Signed-off-by: Yu Liao <liaoyu15@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211213135727.1656662-1-liaoyu15@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2021-12-22 09:32:48 +01:00
Thomas Gleixner	17a1b8826b	hrtimer: Add bases argument to clock_was_set() clock_was_set() unconditionaly invokes retrigger_next_event() on all online CPUs. This was necessary because that mechanism was also used for resume from suspend to idle which is not longer the case. The bases arguments allows the callers of clock_was_set() to hand in a mask which tells clock_was_set() which of the hrtimer clock bases are affected by the clock setting. This mask will be used in the next step to check whether a CPU base has timers queued on a clock base affected by the event and avoid the SMP function call if there are none. Add a @bases argument, provide defines for the active bases masking and fixup all callsites. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210713135158.691083465@linutronix.de	2021-08-10 17:57:23 +02:00
Thomas Gleixner	1b267793f4	time/timekeeping: Avoid invoking clock_was_set() twice do_adjtimex() might end up scheduling a delayed clock_was_set() via timekeeping_advance() and then invoke clock_was_set() directly which is pointless. Make timekeeping_advance() return whether an invocation of clock_was_set() is required and handle it at the call sites which allows do_adjtimex() to issue a single direct call if required. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210713135158.580966888@linutronix.de	2021-08-10 17:57:23 +02:00
Thomas Gleixner	a761a67f59	timekeeping: Distangle resume and clock-was-set events Resuming timekeeping is a clock-was-set event and uses the clock-was-set notification mechanism. This is in the way of making the clock-was-set update for hrtimers selective so unnecessary IPIs are avoided when a CPU base does not have timers queued which are affected by the clock setting. Distangle it by invoking hrtimer_resume() on each unfreezing CPU and invoke the new timerfd_resume() function from timekeeping_resume() which is the only place where this is needed. Rename hrtimer_resume() to hrtimer_resume_local() to reflect the change. With this the clock_was_set*() functions are not longer required to IPI all CPUs unconditionally and can get some smarts to avoid them. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210713135158.488853478@linutronix.de	2021-08-10 17:57:23 +02:00
Linus Torvalds	152d32aa84	Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "This is a large update by KVM standards, including AMD PSP (Platform Security Processor, aka "AMD Secure Technology") and ARM CoreSight (debug and trace) changes. ARM: - CoreSight: Add support for ETE and TRBE - Stage-2 isolation for the host kernel when running in protected mode - Guest SVE support when running in nVHE mode - Force W^X hypervisor mappings in nVHE mode - ITS save/restore for guests using direct injection with GICv4.1 - nVHE panics now produce readable backtraces - Guest support for PTP using the ptp_kvm driver - Performance improvements in the S2 fault handler x86: - AMD PSP driver changes - Optimizations and cleanup of nested SVM code - AMD: Support for virtual SPEC_CTRL - Optimizations of the new MMU code: fast invalidation, zap under read lock, enable/disably dirty page logging under read lock - /dev/kvm API for AMD SEV live migration (guest API coming soon) - support SEV virtual machines sharing the same encryption context - support SGX in virtual machines - add a few more statistics - improved directed yield heuristics - Lots and lots of cleanups Generic: - Rework of MMU notifier interface, simplifying and optimizing the architecture-specific code - a handful of "Get rid of oprofile leftovers" patches - Some selftests improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (379 commits) KVM: selftests: Speed up set_memory_region_test selftests: kvm: Fix the check of return value KVM: x86: Take advantage of kvm_arch_dy_has_pending_interrupt() KVM: SVM: Skip SEV cache flush if no ASIDs have been used KVM: SVM: Remove an unnecessary prototype declaration of sev_flush_asids() KVM: SVM: Drop redundant svm_sev_enabled() helper KVM: SVM: Move SEV VMCB tracking allocation to sev.c KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup() KVM: SVM: Unconditionally invoke sev_hardware_teardown() KVM: SVM: Enable SEV/SEV-ES functionality by default (when supported) KVM: SVM: Condition sev_enabled and sev_es_enabled on CONFIG_KVM_AMD_SEV=y KVM: SVM: Append "_enabled" to module-scoped SEV/SEV-ES control variables KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features KVM: SVM: Move SEV module params/variables to sev.c KVM: SVM: Disable SEV/SEV-ES if NPT is disabled KVM: SVM: Free sev_asid_bitmap during init if SEV setup fails KVM: SVM: Zero out the VMCB array used to track SEV ASID association x86/sev: Drop redundant and potentially misleading 'sev_enabled' KVM: x86: Move reverse CPUID helpers to separate header file KVM: x86: Rename GPR accessors to make mode-aware variants the defaults ...	2021-05-01 10:14:08 -07:00
Thomas Gleixner	b2c67cbe9f	time: Add mechanism to recognize clocksource in time_get_snapshot System time snapshots are not conveying information about the current clocksource which was used, but callers like the PTP KVM guest implementation have the requirement to evaluate the clocksource type to select the appropriate mechanism. Introduce a clocksource id field in struct clocksource which is by default set to CSID_GENERIC (0). Clocksource implementations can set that field to a value which allows to identify the clocksource. Store the clocksource id of the current clocksource in the system_time_snapshot so callers can evaluate which clocksource was used to take the snapshot and act accordingly. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jianyong Wu <jianyong.wu@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201209060932.212364-5-jianyong.wu@arm.com	2021-04-07 16:33:20 +01:00
Niklas Söderlund	d4c7c28806	timekeeping: Allow runtime PM from change_clocksource() The struct clocksource callbacks enable() and disable() are described as a way to allow clock sources to enter a power save mode. See commit `4614e6adaf` ("clocksource: add enable() and disable() callbacks") But using runtime PM from these callbacks triggers a cyclic lockdep warning when switching clock source using change_clocksource(). # echo e60f0000.timer > /sys/devices/system/clocksource/clocksource0/current_clocksource ====================================================== WARNING: possible circular locking dependency detected ------------------------------------------------------ migration/0/11 is trying to acquire lock: ffff0000403ed220 (&dev->power.lock){-...}-{2:2}, at: __pm_runtime_resume+0x40/0x74 but task is already holding lock: ffff8000113c8f88 (tk_core.seq.seqcount){----}-{0:0}, at: multi_cpu_stop+0xa4/0x190 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (tk_core.seq.seqcount){----}-{0:0}: ktime_get+0x28/0xa0 hrtimer_start_range_ns+0x210/0x2dc generic_sched_clock_init+0x70/0x88 sched_clock_init+0x40/0x64 start_kernel+0x494/0x524 -> #1 (hrtimer_bases.lock){-.-.}-{2:2}: hrtimer_start_range_ns+0x68/0x2dc rpm_suspend+0x308/0x5dc rpm_idle+0xc4/0x2a4 pm_runtime_work+0x98/0xc0 process_one_work+0x294/0x6f0 worker_thread+0x70/0x45c kthread+0x154/0x160 ret_from_fork+0x10/0x20 -> #0 (&dev->power.lock){-...}-{2:2}: _raw_spin_lock_irqsave+0x7c/0xc4 __pm_runtime_resume+0x40/0x74 sh_cmt_start+0x1c4/0x260 sh_cmt_clocksource_enable+0x28/0x50 change_clocksource+0x9c/0x160 multi_cpu_stop+0xa4/0x190 cpu_stopper_thread+0x90/0x154 smpboot_thread_fn+0x244/0x270 kthread+0x154/0x160 ret_from_fork+0x10/0x20 other info that might help us debug this: Chain exists of: &dev->power.lock --> hrtimer_bases.lock --> tk_core.seq.seqcount Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(tk_core.seq.seqcount); lock(hrtimer_bases.lock); lock(tk_core.seq.seqcount); lock(&dev->power.lock); * DEADLOCK * 2 locks held by migration/0/11: #0: ffff8000113c9278 (timekeeper_lock){-.-.}-{2:2}, at: change_clocksource+0x2c/0x160 #1: ffff8000113c8f88 (tk_core.seq.seqcount){----}-{0:0}, at: multi_cpu_stop+0xa4/0x190 Rework change_clocksource() so it enables the new clocksource and disables the old clocksource outside of the timekeeper_lock and seqcount write held region. There is no requirement that these callbacks are invoked from the lock held region. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20210211134318.323910-1-niklas.soderlund+renesas@ragnatech.se	2021-03-29 16:41:59 +02:00
Ingo Molnar	4bf07f6562	timekeeping, clocksource: Fix various typos in comments Fix ~56 single-word typos in timekeeping & clocksource code comments. Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-kernel@vger.kernel.org	2021-03-22 23:06:48 +01:00
Chunguang Xu	aba428a0c6	timekeeping: Remove unused get_seconds() The get_seconds() cleanup seems to have been completed, now it is time to delete the legacy interface to avoid misuse later. Signed-off-by: Chunguang Xu <brookxu@tencent.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1606816351-26900-1-git-send-email-brookxu@tencent.com	2021-01-12 21:13:01 +01:00
Linus Torvalds	7a932e5702	Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic cross-architecture timer cleanup from Arnd Bergmann: "This cleans up two ancient timer features that were never completed in the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET. There was only one user left for the ARCH_USES_GETTIMEOFFSET variant of clocksource implementations, the ARM EBSA110 platform. Rather than changing to use modern timekeeping, we remove the platform entirely as Russell no longer uses his machine and nobody else seems to have one any more. The conditional code for using arch_gettimeoffset() is removed as a result. For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms not using clockevent drivers: parisc, ia64, most of m68k, and one Arm platform. These all do timer ticks slighly differently, and this gets cleaned up to the point they at least all call the same helper function. Instead of most platforms using 'select GENERIC_CLOCKEVENTS' in Kconfig, the polarity is now reversed, with the few remaining ones selecting LEGACY_TIMER_TICK instead" * tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: timekeeping: default GENERIC_CLOCKEVENTS to enabled timekeeping: remove xtime_update m68k: remove timer_interrupt() function m68k: change remaining timers to legacy_timer_tick m68k: m68328: use legacy_timer_tick() m68k: sun3/sun3c: use legacy_timer_tick m68k: split heartbeat out of timer function m68k: coldfire: use legacy_timer_tick() parisc: use legacy_timer_tick ARM: rpc: use legacy_timer_tick ia64: convert to legacy_timer_tick timekeeping: add CONFIG_LEGACY_TIMER_TICK timekeeping: remove arch_gettimeoffset net: remove am79c961a driver ARM: remove ebsa110 platform	2020-12-16 00:07:17 -08:00
Alex Shi	6e5a91901c	timekeeping: Address parameter documentation issues for various functions The kernel-doc parser complains: kernel/time/timekeeping.c:1543: warning: Function parameter or member 'ts' not described in 'read_persistent_clock64' kernel/time/timekeeping.c:764: warning: Function parameter or member 'tk' not described in 'timekeeping_forward_now' kernel/time/timekeeping.c:1331: warning: Function parameter or member 'ts' not described in 'timekeeping_inject_offset' kernel/time/timekeeping.c:1331: warning: Excess function parameter 'tv' description in 'timekeeping_inject_offset' Add the missing parameter documentations and rename the 'tv' parameter of timekeeping_inject_offset() to 'ts' so it matches the implemention. [ tglx: Reworded a few docs and massaged changelog ] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1605252275-63652-5-git-send-email-alex.shi@linux.alibaba.com	2020-11-15 23:47:24 +01:00
Alex Shi	29efc4612a	timekeeping: Fix parameter docs of read_persistent_wall_and_boot_offset() Address the following kernel-doc markup warnings: kernel/time/timekeeping.c:1563: warning: Function parameter or member 'wall_time' not described in 'read_persistent_wall_and_boot_offset' kernel/time/timekeeping.c:1563: warning: Function parameter or member 'boot_offset' not described in 'read_persistent_wall_and_boot_offset' The parameters are described but miss the leading '@' and the colon after the parameter names. [ tglx: Massaged changelog ] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1605252275-63652-6-git-send-email-alex.shi@linux.alibaba.com	2020-11-15 23:47:24 +01:00
Alex Shi	f27f7c3f10	timekeeping: Add missing parameter docs for pvclock_gtod_[un]register_notifier() The kernel-doc parser complains about: kernel/time/timekeeping.c:651: warning: Function parameter or member 'nb' not described in 'pvclock_gtod_register_notifier' kernel/time/timekeeping.c:670: warning: Function parameter or member 'nb' not described in 'pvclock_gtod_unregister_notifier' Add the missing parameter explanations. [ tglx: Massaged changelog ] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1605252275-63652-3-git-send-email-alex.shi@linux.alibaba.com	2020-11-15 23:47:24 +01:00
Thomas Gleixner	c1ce406e80	timekeeping: Fix up function documentation for the NMI safe accessors Alex reported the following warning: kernel/time/timekeeping.c:464: warning: Function parameter or member 'tkf' not described in '__ktime_get_fast_ns' which is not entirely correct because the documented function is ktime_get_mono_fast_ns() which does not have a parameter, but the kernel-doc parser looks at the function declaration which follows the comment and complains about the missing parameter documentation. Aside of that the documentation for the rest of the NMI safe accessors is either incomplete or missing. - Move the function documentation to the right place - Fixup the references and inconsistencies - Add the missing documentation for ktime_get_raw_fast_ns() Reported-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2020-11-15 23:47:24 +01:00
Alex Shi	e025b03113	timekeeping: Add missing parameter documentation for update_fast_timekeeper() Address the following warning: kernel/time/timekeeping.c:415: warning: Function parameter or member 'tkf' not described in 'update_fast_timekeeper' [ tglx: Remove the bogus ktime_get_mono_fast_ns() part ] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1605252275-63652-2-git-send-email-alex.shi@linux.alibaba.com	2020-11-15 23:47:24 +01:00
Alex Shi	199d280c88	timekeeping: Remove static functions from kernel-doc markup Various static functions in the timekeeping code have function comments which pretend to be kernel-doc, but are incomplete and trigger parser warnings. As these functions are local to the timekeeping core code there is no need to expose them via kernel-doc. Remove the double star kernel-doc marker and remove excess newlines. [ tglx: Massaged changelog and removed excess newlines ] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/1605252275-63652-4-git-send-email-alex.shi@linux.alibaba.com	2020-11-15 23:47:23 +01:00
Arnd Bergmann	56cc7b8acf	timekeeping: remove xtime_update There are no more users of xtime_update aside from legacy_timer_tick(), so fold it into that function and remove the declaration. update_process_times() is now only called inside of the kernel/time/ code, so the declaration can be moved there. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>	2020-10-30 21:57:07 +01:00
Arnd Bergmann	77f6c0b874	timekeeping: remove arch_gettimeoffset With Arm EBSA110 gone, nothing uses it any more, so the corresponding code and the Kconfig option can be removed. Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>	2020-10-30 21:57:04 +01:00
Linus Torvalds	ed016af52e	Merge tag 'locking-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "These are the locking updates for v5.10: - Add deadlock detection for recursive read-locks. The rationale is outlined in commit `224ec489d3` ("lockdep/ Documention: Recursive read lock detection reasoning") The main deadlock pattern we want to detect is: TASK A: TASK B: read_lock(X); write_lock(X); read_lock_2(X); - Add "latch sequence counters" (seqcount_latch_t): A sequence counter variant where the counter even/odd value is used to switch between two copies of protected data. This allows the read path, typically NMIs, to safely interrupt the write side critical section. We utilize this new variant for sched-clock, and to make x86 TSC handling safer. - Other seqlock cleanups, fixes and enhancements - KCSAN updates - LKMM updates - Misc updates, cleanups and fixes" * tag 'locking-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits) lockdep: Revert "lockdep: Use raw_cpu_*() for per-cpu variables" lockdep: Fix lockdep recursion lockdep: Fix usage_traceoverflow locking/atomics: Check atomic-arch-fallback.h too locking/seqlock: Tweak DEFINE_SEQLOCK() kernel doc lockdep: Optimize the memory usage of circular queue seqlock: Unbreak lockdep seqlock: PREEMPT_RT: Do not starve seqlock_t writers seqlock: seqcount_LOCKNAME_t: Introduce PREEMPT_RT support seqlock: seqcount_t: Implement all read APIs as statement expressions seqlock: Use unique prefix for seqcount_t property accessors seqlock: seqcount_LOCKNAME_t: Standardize naming convention seqlock: seqcount latch APIs: Only allow seqcount_latch_t rbtree_latch: Use seqcount_latch_t x86/tsc: Use seqcount_latch_t timekeeping: Use seqcount_latch_t time/sched_clock: Use seqcount_latch_t seqlock: Introduce seqcount_latch_t mm/swap: Do not abuse the seqcount_t latching API time/sched_clock: Use raw_read_seqcount_latch() during suspend ...	2020-10-12 13:06:20 -07:00
Ahmed S. Darwish	249d053835	timekeeping: Use seqcount_latch_t Latch sequence counters are a multiversion concurrency control mechanism where the seqcount_t counter even/odd value is used to switch between two data storage copies. This allows the seqcount_t read path to safely interrupt its write side critical section (e.g. from NMIs). Initially, latch sequence counters were implemented as a single write function, raw_write_seqcount_latch(), above plain seqcount_t. The read path was expected to use plain seqcount_t raw_read_seqcount(). A specialized read function was later added, raw_read_seqcount_latch(), and became the standardized way for latch read paths. Having unique read and write APIs meant that latch sequence counters are basically a data type of their own -- just inappropriately overloading plain seqcount_t. The seqcount_latch_t data type was thus introduced at seqlock.h. Use that new data type instead of seqcount_raw_spinlock_t. This ensures that only latch-safe APIs are to be used with the sequence counter. Note that the use of seqcount_raw_spinlock_t was not very useful in the first place. Only the "raw_" subset of seqcount_t APIs were used at timekeeping.c. This subset was created for contexts where lockdep cannot be used. seqcount_LOCKTYPE_t's raison d'être -- verifying that the seqcount_t writer serialization lock is held -- cannot thus be done. References: `0c3351d451` ("seqlock: Use raw_ prefix instead of _no_lockdep") References: `55f3560df9` ("seqlock: Extend seqcount API with associated locks") Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200827114044.11173-6-a.darwish@linutronix.de	2020-09-10 11:19:29 +02:00
Thomas Gleixner	e2d977c9f1	timekeeping: Provide multi-timestamp accessor to NMI safe timekeeper printk wants to store various timestamps (MONOTONIC, REALTIME, BOOTTIME) to make correlation of dmesg from several systems easier. Provide an interface to retrieve all three timestamps in one go. There are some caveats: 1) Boot time and late sleep time injection Boot time is a racy access on 32bit systems if the sleep time injection happens late during resume and not in timekeeping_resume(). That could be avoided by expanding struct tk_read_base with boot offset for 32bit and adding more overhead to the update. As this is a hard to observe once per resume event which can be filtered with reasonable effort using the accurate mono/real timestamps, it's probably not worth the trouble. Aside of that it might be possible on 32 and 64 bit to observe the following when the sleep time injection happens late: CPU 0 CPU 1 timekeeping_resume() ktime_get_fast_timestamps() mono, real = __ktime_get_real_fast() inject_sleep_time() update boot offset boot = mono + bootoffset; That means that boot time already has the sleep time adjustment, but real time does not. On the next readout both are in sync again. Preventing this for 64bit is not really feasible without destroying the careful cache layout of the timekeeper because the sequence count and struct tk_read_base would then need two cache lines instead of one. 2) Suspend/resume timestamps Access to the time keeper clock source is disabled accross the innermost steps of suspend/resume. The accessors still work, but the timestamps are frozen until time keeping is resumed which happens very early. For regular suspend/resume there is no observable difference vs. sched clock, but it might affect some of the nasty low level debug printks. OTOH, access to sched clock is not guaranteed accross suspend/resume on all systems either so it depends on the hardware in use. If that turns out to be a real problem then this could be mitigated by using sched clock in a similar way as during early boot. But it's not as trivial as on early boot because it needs some careful protection against the clock monotonic timestamp jumping backwards on resume. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200814115512.159981360@linutronix.de	2020-08-23 10:38:24 +02:00
Thomas Gleixner	71419b30ca	timekeeping: Utilize local_clock() for NMI safe timekeeper during early boot During early boot the NMI safe timekeeper returns 0 until the first clocksource becomes available. This prevents it from being used for printk or other facilities which today use sched clock. sched clock can be available way before timekeeping is initialized. The obvious workaround for this is to utilize the early sched clock in the default dummy clock read function until a clocksource becomes available. After switching to the clocksource clock MONOTONIC and BOOTTIME will not jump because the timekeeping_init() bases clock MONOTONIC on sched clock and the offset between clock MONOTONIC and BOOTTIME is zero during boot. Clock REALTIME cannot provide useful timestamps during early boot up to the point where a persistent clock becomes available, which is either in timekeeping_init() or later when the RTC driver which might depend on I2C or other subsystems is initialized. There is a minor difference to sched_clock() vs. suspend/resume. As the timekeeper clock source might not be accessible during suspend, after timekeeping_suspend() timestamps freeze up to the point where timekeeping_resume() is invoked. OTOH this is true for some sched clock implementations as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20200814115512.041422402@linutronix.de	2020-08-23 10:38:24 +02:00
Linus Torvalds	b923f1247b	Merge tag 'timers-urgent-2020-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timekeeping updates from Thomas Gleixner: "A set of timekeeping/VDSO updates: - Preparatory work to allow S390 to switch over to the generic VDSO implementation. S390 requires that the VDSO data pointer is handed in to the counter read function when time namespace support is enabled. Adding the pointer is a NOOP for all other architectures because the compiler is supposed to optimize that out when it is unused in the architecture specific inline. The change also solved a similar problem for MIPS which fortunately has time namespaces not yet enabled. S390 needs to update clock related VDSO data independent of the timekeeping updates. This was solved so far with yet another sequence counter in the S390 implementation. A better solution is to utilize the already existing VDSO sequence count for this. The core code now exposes helper functions which allow to serialize against the timekeeper code and against concurrent readers. S390 needs extra data for their clock readout function. The initial common VDSO data structure did not provide a way to add that. It now has an embedded architecture specific struct embedded which defaults to an empty struct. Doing this now avoids tree dependencies and conflicts post rc1 and allows all other architectures which work on generic VDSO support to work from a common upstream base. - A trivial comment fix" * tag 'timers-urgent-2020-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Delete repeated words in comments lib/vdso: Allow to add architecture-specific vdso data timekeeping/vsyscall: Provide vdso_update_begin/end() vdso/treewide: Add vdso_data pointer argument to __arch_get_hw_counter()	2020-08-14 14:26:08 -07:00
Linus Torvalds	97d052ea3f	Merge tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Thomas Gleixner: "A set of locking fixes and updates: - Untangle the header spaghetti which causes build failures in various situations caused by the lockdep additions to seqcount to validate that the write side critical sections are non-preemptible. - The seqcount associated lock debug addons which were blocked by the above fallout. seqcount writers contrary to seqlock writers must be externally serialized, which usually happens via locking - except for strict per CPU seqcounts. As the lock is not part of the seqcount, lockdep cannot validate that the lock is held. This new debug mechanism adds the concept of associated locks. sequence count has now lock type variants and corresponding initializers which take a pointer to the associated lock used for writer serialization. If lockdep is enabled the pointer is stored and write_seqcount_begin() has a lockdep assertion to validate that the lock is held. Aside of the type and the initializer no other code changes are required at the seqcount usage sites. The rest of the seqcount API is unchanged and determines the type at compile time with the help of _Generic which is possible now that the minimal GCC version has been moved up. Adding this lockdep coverage unearthed a handful of seqcount bugs which have been addressed already independent of this. While generally useful this comes with a Trojan Horse twist: On RT kernels the write side critical section can become preemtible if the writers are serialized by an associated lock, which leads to the well known reader preempts writer livelock. RT prevents this by storing the associated lock pointer independent of lockdep in the seqcount and changing the reader side to block on the lock when a reader detects that a writer is in the write side critical section. - Conversion of seqcount usage sites to associated types and initializers" * tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) locking/seqlock, headers: Untangle the spaghetti monster locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header x86/headers: Remove APIC headers from <asm/smp.h> seqcount: More consistent seqprop names seqcount: Compress SEQCNT_LOCKNAME_ZERO() seqlock: Fold seqcount_LOCKNAME_init() definition seqlock: Fold seqcount_LOCKNAME_t definition seqlock: s/__SEQ_LOCKDEP/__SEQ_LOCK/g hrtimer: Use sequence counter with associated raw spinlock kvm/eventfd: Use sequence counter with associated spinlock userfaultfd: Use sequence counter with associated spinlock NFSv4: Use sequence counter with associated spinlock iocost: Use sequence counter with associated spinlock raid5: Use sequence counter with associated spinlock vfs: Use sequence counter with associated spinlock timekeeping: Use sequence counter with associated raw spinlock xfrm: policy: Use sequence counters with associated lock netfilter: nft_set_rbtree: Use sequence counter with associated rwlock netfilter: conntrack: Use sequence counter with associated spinlock sched: tasks: Use sequence counter with associated spinlock ...	2020-08-10 19:07:44 -07:00
Randy Dunlap	b0294f3025	time: Delete repeated words in comments Drop repeated words in kernel/time/. {when, one, into} Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Link: https://lore.kernel.org/r/20200807033248.8452-1-rdunlap@infradead.org	2020-08-10 22:14:07 +02:00
Thomas Gleixner	19d0070a27	timekeeping/vsyscall: Provide vdso_update_begin/end() Architectures can have the requirement to add additional architecture specific data to the VDSO data page which needs to be updated independent of the timekeeper updates. To protect these updates vs. concurrent readers and a conflicting update through timekeeping, provide helper functions to make such updates safe. vdso_update_begin() takes the timekeeper_lock to protect against a potential update from timekeeper code and increments the VDSO sequence count to signal data inconsistency to concurrent readers. vdso_update_end() makes the sequence count even again to signal data consistency and drops the timekeeper lock. [ Sven: Add interrupt disable handling to the functions ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200804150124.41692-3-svens@linux.ibm.com	2020-08-06 10:57:30 +02:00
Ahmed S. Darwish	025e82bcbc	timekeeping: Use sequence counter with associated raw spinlock A sequence counter write side critical section must be protected by some form of locking to serialize writers. A plain seqcount_t does not contain the information of which lock must be held when entering a write side critical section. Use the new seqcount_raw_spinlock_t data type, which allows to associate a raw spinlock with the sequence counter. This enables lockdep to verify that the raw spinlock used for writer serialization is held when the write side critical section is entered. If lockdep is disabled this lock association is compiled out and has neither storage size nor runtime overhead. Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200720155530.1173732-18-a.darwish@linutronix.de	2020-07-29 16:14:27 +02:00
Paul Gortmaker	46132e3ac5	sched: nohz: stop passing around unused "ticks" parameter. The "ticks" parameter was added in commit `0f004f5a69` ("sched: Cure more NO_HZ load average woes") since calc_global_nohz() was called and needed the "ticks" argument. But in commit `c308b56b53` ("sched: Fix nohz load accounting -- again!") it became unused as the function calc_global_nohz() dropped using "ticks". Fixes: `c308b56b53` ("sched: Fix nohz load accounting -- again!") Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/1593628458-32290-1-git-send-email-paul.gortmaker@windriver.com	2020-07-22 10:22:04 +02:00
Thomas Gleixner	865d3a9afe	x86/mce: Address objtools noinstr complaints Mark the relevant functions noinstr, use the plain non-instrumented MSR accessors. The only odd part is the instrumentation_begin()/end() pair around the indirect machine_check_vector() call as objtool can't figure that out. The possible invoked functions are annotated correctly. Also use notrace variant of nmi_enter/exit(). If MCEs happen then hardware latency tracing is the least of the worries. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20200505135315.476734898@linutronix.de	2020-06-11 15:15:02 +02:00
Linus Torvalds	dbb381b619	Merge tag 'timers-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timekeeping and timer updates from Thomas Gleixner: "Core: - Consolidation of the vDSO build infrastructure to address the difficulties of cross-builds for ARM64 compat vDSO libraries by restricting the exposure of header content to the vDSO build. This is achieved by splitting out header content into separate headers. which contain only the minimaly required information which is necessary to build the vDSO. These new headers are included from the kernel headers and the vDSO specific files. - Enhancements to the generic vDSO library allowing more fine grained control over the compiled in code, further reducing architecture specific storage and preparing for adopting the generic library by PPC. - Cleanup and consolidation of the exit related code in posix CPU timers. - Small cleanups and enhancements here and there Drivers: - The obligatory new drivers: Ingenic JZ47xx and X1000 TCU support - Correct the clock rate of PIT64b global clock - setup_irq() cleanup - Preparation for PWM and suspend support for the TI DM timer - Expand the fttmr010 driver to support ast2600 systems - The usual small fixes, enhancements and cleanups all over the place" * tag 'timers-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (80 commits) Revert "clocksource/drivers/timer-probe: Avoid creating dead devices" vdso: Fix clocksource.h macro detection um: Fix header inclusion arm64: vdso32: Enable Clang Compilation lib/vdso: Enable common headers arm: vdso: Enable arm to use common headers x86/vdso: Enable x86 to use common headers mips: vdso: Enable mips to use common headers arm64: vdso32: Include common headers in the vdso library arm64: vdso: Include common headers in the vdso library arm64: Introduce asm/vdso/processor.h arm64: vdso32: Code clean up linux/elfnote.h: Replace elf.h with UAPI equivalent scripts: Fix the inclusion order in modpost common: Introduce processor.h linux/ktime.h: Extract common header for vDSO linux/jiffies.h: Extract common header for vDSO linux/time64.h: Extract common header for vDSO linux/time32.h: Extract common header for vDSO linux/time.h: Extract common header for vDSO ...	2020-03-30 18:51:47 -07:00
Thomas Gleixner	e5d4d1756b	timekeeping: Split jiffies seqlock seqlock consists of a sequence counter and a spinlock_t which is used to serialize the writers. spinlock_t is substituted by a "sleeping" spinlock on PREEMPT_RT enabled kernels which breaks the usage in the timekeeping code as the writers are executed in hard interrupt and therefore non-preemptible context even on PREEMPT_RT. The spinlock in seqlock cannot be unconditionally replaced by a raw_spinlock_t as many seqlock users have nesting spinlock sections or other code which is not suitable to run in truly atomic context on RT. Instead of providing a raw_seqlock API for a single use case, open code the seqlock for the jiffies use case and implement it with a raw_spinlock_t and a sequence counter. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200321113242.120587764@linutronix.de	2020-03-21 16:00:23 +01:00
Wen Yang	4cbbc3a0ee	timekeeping: Prevent 32bit truncation in scale64_check_overflow() While unlikely the divisor in scale64_check_overflow() could be >= 32bit in scale64_check_overflow(). do_div() truncates the divisor to 32bit at least on 32bit platforms. Use div64_u64() instead to avoid the truncation to 32-bit. [ tglx: Massaged changelog ] Signed-off-by: Wen Yang <wenyang@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200120100523.45656-1-wenyang@linux.alibaba.com	2020-03-04 10:17:51 +01:00
Thomas Gleixner	b99328a60a	timekeeping/vsyscall: Prevent math overflow in BOOTTIME update The VDSO update for CLOCK_BOOTTIME has a overflow issue as it shifts the nanoseconds based boot time offset left by the clocksource shift. That overflows once the boot time offset becomes large enough. As a consequence CLOCK_BOOTTIME in the VDSO becomes a random number causing applications to misbehave. Fix it by storing a timespec64 representation of the offset when boot time is adjusted and add that to the MONOTONIC base time value in the vdso data page. Using the timespec64 representation avoids a 64bit division in the update code. Fixes: `44f57d788e` ("timekeeping: Provide a generic update_vsyscall() implementation") Reported-by: Chris Clayton <chris2553@googlemail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Chris Clayton <chris2553@googlemail.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1908221257580.1983@nanos.tec.linutronix.de	2019-08-23 02:12:11 +02:00
Jason A. Donenfeld	0354c1a3cd	timekeeping: Use proper ktime_add when adding nsecs in coarse offset While this doesn't actually amount to a real difference, since the macro evaluates to the same thing, every place else operates on ktime_t using these functions, so let's not break the pattern. Fixes: `e3ff9c3678` ("timekeeping: Repair ktime_get_coarse*() granularity") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20190621203249.3909-1-Jason@zx2c4.com	2019-06-22 12:11:27 +02:00
Thomas Gleixner	e3ff9c3678	timekeeping: Repair ktime_get_coarse() granularity Jason reported that the coarse ktime based time getters advance only once per second and not once per tick as advertised. The code reads only the monotonic base time, which advances once per second. The nanoseconds are accumulated on every tick in xtime_nsec up to a second and the regular time getters take this nanoseconds offset into account, but the ktime_get_coarse() implementation fails to do so. Add the accumulated xtime_nsec value to the monotonic base time to get the proper per tick advancing coarse tinme. Fixes: `b9ff604cff` ("timekeeping: Add ktime_get_coarse_with_offset") Reported-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Jason A. Donenfeld <Jason@zx2c4.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: Sultan Alsawaf <sultan@kerneltoast.com> Cc: Waiman Long <longman@redhat.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1906132136280.1791@nanos.tec.linutronix.de	2019-06-14 11:51:44 +02:00
Linus Torvalds	02aff8db64	Merge tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit Pull audit updates from Paul Moore: "We've got a reasonably broad set of audit patches for the v5.2 merge window, the highlights are below: - The biggest change, and the source of all the arch/* changes, is the patchset from Dmitry to help enable some of the work he is doing around PTRACE_GET_SYSCALL_INFO. To be honest, including this in the audit tree is a bit of a stretch, but it does help move audit a little further along towards proper syscall auditing for all arches, and everyone else seemed to agree that audit was a "good" spot for this to land (or maybe they just didn't want to merge it? dunno.). - We can now audit time/NTP adjustments. - We continue the work to connect associated audit records into a single event" * tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: (21 commits) audit: fix a memory leak bug ntp: Audit NTP parameters adjustment timekeeping: Audit clock adjustments audit: purge unnecessary list_empty calls audit: link integrity evm_write_xattrs record to syscall event syscall_get_arch: add "struct task_struct *" argument unicore32: define syscall_get_arch() Move EM_UNICORE to uapi/linux/elf-em.h nios2: define syscall_get_arch() nds32: define syscall_get_arch() Move EM_NDS32 to uapi/linux/elf-em.h m68k: define syscall_get_arch() hexagon: define syscall_get_arch() Move EM_HEXAGON to uapi/linux/elf-em.h h8300: define syscall_get_arch() c6x: define syscall_get_arch() arc: define syscall_get_arch() Move EM_ARCOMPACT and EM_ARCV2 to uapi/linux/elf-em.h audit: Make audit_log_cap and audit_copy_inode static audit: connect LOGIN record to its syscall record ...	2019-05-07 19:06:04 -07:00
Ondrej Mosnacek	7e8eda734d	ntp: Audit NTP parameters adjustment Emit an audit record every time selected NTP parameters are modified from userspace (via adjtimex(2) or clock_adjtime(2)). These parameters may be used to indirectly change system clock, and thus their modifications should be audited. Such events will now generate records of type AUDIT_TIME_ADJNTPVAL containing the following fields: - op -- which value was adjusted: - offset -- corresponding to the time_offset variable - freq -- corresponding to the time_freq variable - status -- corresponding to the time_status variable - adjust -- corresponding to the time_adjust variable - tick -- corresponding to the tick_usec variable - tai -- corresponding to the timekeeping's TAI offset - old -- the old value - new -- the new value Example records: type=TIME_ADJNTPVAL msg=audit(1530616044.507:7): op=status old=64 new=8256 type=TIME_ADJNTPVAL msg=audit(1530616044.511:11): op=freq old=0 new=49180377088000 The records of this type will be associated with the corresponding syscall records. An overview of parameter changes that can be done via do_adjtimex() (based on information from Miroslav Lichvar) and whether they are audited: __timekeeping_set_tai_offset() -- sets the offset from the International Atomic Time (AUDITED) NTP variables: time_offset -- can adjust the clock by up to 0.5 seconds per call and also speed it up or slow down by up to about 0.05% (43 seconds per day) (AUDITED) time_freq -- can speed up or slow down by up to about 0.05% (AUDITED) time_status -- can insert/delete leap seconds and it also enables/ disables synchronization of the hardware real-time clock (AUDITED) time_maxerror, time_esterror -- change error estimates used to inform userspace applications (NOT AUDITED) time_constant -- controls the speed of the clock adjustments that are made when time_offset is set (NOT AUDITED) time_adjust -- can temporarily speed up or slow down the clock by up to 0.05% (AUDITED) tick_usec -- a more extreme version of time_freq; can speed up or slow down the clock by up to 10% (AUDITED) Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Reviewed-by: Richard Guy Briggs <rgb@redhat.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Paul Moore <paul@paul-moore.com>	2019-04-15 18:14:01 -04:00
Ondrej Mosnacek	2d87a0674b	timekeeping: Audit clock adjustments Emit an audit record whenever the system clock is changed (i.e. shifted by a non-zero offset) by a syscall from userspace. The syscalls than can (at the time of writing) trigger such record are: - settimeofday(2), stime(2), clock_settime(2) -- via do_settimeofday64() - adjtimex(2), clock_adjtime(2) -- via do_adjtimex() The new records have type AUDIT_TIME_INJOFFSET and contain the following fields: - sec -- the 'seconds' part of the offset - nsec -- the 'nanoseconds' part of the offset Example record (time was shifted backwards by ~15.875 seconds): type=TIME_INJOFFSET msg=audit(1530616049.652:13): sec=-16 nsec=124887145 The records of this type will be associated with the corresponding syscall records. Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Reviewed-by: Richard Guy Briggs <rgb@redhat.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> [PM: fixed a line width problem in __audit_tk_injoffset()] Signed-off-by: Paul Moore <paul@paul-moore.com>	2019-04-15 18:10:17 -04:00
Thomas Gleixner	7a8e61f847	timekeeping: Force upper bound for setting CLOCK_REALTIME Several people reported testing failures after setting CLOCK_REALTIME close to the limits of the kernel internal representation in nanoseconds, i.e. year 2262. The failures are exposed in subsequent operations, i.e. when arming timers or when the advancing CLOCK_MONOTONIC makes the calculation of CLOCK_REALTIME overflow into negative space. Now people start to paper over the underlying problem by clamping calculations to the valid range, but that's just wrong because such workarounds will prevent detection of real issues as well. It is reasonable to force an upper bound for the various methods of setting CLOCK_REALTIME. Year 2262 is the absolute upper bound. Assume a maximum uptime of 30 years which is plenty enough even for esoteric embedded systems. That results in an upper bound of year 2232 for setting the time. Once that limit is reached in reality this limit is only a small part of the problem space. But until then this stops people from trying to paper over the problem at the wrong places. Reported-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reported-by: Hongbo Yao <yaohongbo@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Miroslav Lichvar <mlichvar@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1903231125480.2157@nanos.tec.linutronix.de	2019-03-28 13:41:06 +01:00
Rasmus Villemoes	e1e41b6ce5	timekeeping: Consistently use unsigned int for seqcount snapshot The timekeeping code uses a random mix of "unsigned long" and "unsigned int" for the seqcount snapshots (ratio 14:12). Since the seqlock.h API is entirely based on unsigned int, use that throughout. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20190318195557.20773-1-linux@rasmusvillemoes.dk	2019-03-23 11:43:56 +01:00
Deepa Dinamani	ead25417f8	timex: use __kernel_timex internally struct timex is not y2038 safe. Replace all uses of timex with y2038 safe __kernel_timex. Note that struct __kernel_timex is an ABI interface definition. We could define a new structure based on __kernel_timex that is only available internally instead. Right now, there isn't a strong motivation for this as the structure is isolated to a few defined struct timex interfaces and such a structure would be exactly the same as struct timex. The patch was generated by the following coccinelle script: virtual patch @depends on patch forall@ identifier ts; expression e; @@ ( - struct timex ts; + struct __kernel_timex ts; \| - struct timex ts = {}; + struct __kernel_timex ts = {}; \| - struct timex ts = e; + struct __kernel_timex ts = e; \| - struct timex ts; + struct __kernel_timex ts; \| (memset \\| copy_from_user \\| copy_to_user \)(..., - sizeof(struct timex)) + sizeof(struct __kernel_timex)) ) @depends on patch forall@ identifier ts; identifier fn; @@ fn(..., - struct timex ts, + struct __kernel_timex ts, ...) { ... } @depends on patch forall@ identifier ts; identifier fn; @@ fn(..., - struct timex ts) { + struct __kernel_timex ts) { ... } Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Cc: linux-alpha@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>	2019-02-07 00:13:27 +01:00
Linus Torvalds	b12a9124ee	Merge tag 'y2038-for-4.21' of ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull y2038 updates from Arnd Bergmann: "More syscalls and cleanups This concludes the main part of the system call rework for 64-bit time_t, which has spread over most of year 2018, the last six system calls being - ppoll - pselect6 - io_pgetevents - recvmmsg - futex - rt_sigtimedwait As before, nothing changes for 64-bit architectures, while 32-bit architectures gain another entry point that differs only in the layout of the timespec structure. Hopefully in the next release we can wire up all 22 of those system calls on all 32-bit architectures, which gives us a baseline version for glibc to start using them. This does not include the clock_adjtime, getrusage/waitid, and getitimer/setitimer system calls. I still plan to have new versions of those as well, but they are not required for correct operation of the C library since they can be emulated using the old 32-bit time_t based system calls. Aside from the system calls, there are also a few cleanups here, removing old kernel internal interfaces that have become unused after all references got removed. The arch/sh cleanups are part of this, there were posted several times over the past year without a reaction from the maintainers, while the corresponding changes made it into all other architectures" * tag 'y2038-for-4.21' of ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: timekeeping: remove obsolete time accessors vfs: replace current_kernel_time64 with ktime equivalent timekeeping: remove timespec_add/timespec_del timekeeping: remove unused {read,update}_persistent_clock sh: remove board_time_init() callback sh: remove unused rtc_sh_get/set_time infrastructure sh: sh03: rtc: push down rtc class ops into driver sh: dreamcast: rtc: push down rtc class ops into driver y2038: signal: Add compat_sys_rt_sigtimedwait_time64 y2038: signal: Add sys_rt_sigtimedwait_time32 y2038: socket: Add compat_sys_recvmmsg_time64 y2038: futex: Add support for __kernel_timespec y2038: futex: Move compat implementation into futex.c io_pgetevents: use __kernel_timespec pselect6: use __kernel_timespec ppoll: use __kernel_timespec signal: Add restore_user_sigmask() signal: Add set_user_sigmask()	2018-12-28 12:45:04 -08:00
Arnd Bergmann	926617889d	timekeeping: remove unused {read,update}_persistent_clock After arch/sh has removed the last reference to these functions, we can remove them completely and just rely on the 64-bit time_t based versions. This cleans up a rather ugly use of __weak functions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: John Stultz <john.stultz@linaro.org>	2018-12-18 16:13:05 +01:00

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