[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220510130740.392653815@linuxfoundation.org>
Date: Tue, 10 May 2022 15:06:22 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
jonathanh@...dia.com, f.fainelli@...il.com,
sudipm.mukherjee@...il.com, slade@...dewatkins.com
Subject: [PATCH 5.15 000/135] 5.15.39-rc1 review
This is the start of the stable review cycle for the 5.15.39 release.
There are 135 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
Responses should be made by Thu, 12 May 2022 13:07:16 +0000.
Anything received after that time might be too late.
The whole patch series can be found in one patch at:
https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.39-rc1.gz
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Linux 5.15.39-rc1
Marek Behún <kabel@...nel.org>
PCI: aardvark: Update comment about link going down after link-up
Marek Behún <kabel@...nel.org>
PCI: aardvark: Drop __maybe_unused from advk_pcie_disable_phy()
Pali Rohár <pali@...nel.org>
PCI: aardvark: Don't mask irq when mapping
Pali Rohár <pali@...nel.org>
PCI: aardvark: Remove irq_mask_ack() callback for INTx interrupts
Pali Rohár <pali@...nel.org>
PCI: aardvark: Use separate INTA interrupt for emulated root bridge
Pali Rohár <pali@...nel.org>
PCI: aardvark: Fix support for PME requester on emulated bridge
Pali Rohár <pali@...nel.org>
PCI: aardvark: Add support for PME interrupts
Pali Rohár <pali@...nel.org>
PCI: aardvark: Optimize writing PCI_EXP_RTCTL_PMEIE and PCI_EXP_RTSTA_PME on emulated bridge
Pali Rohár <pali@...nel.org>
PCI: aardvark: Add support for ERR interrupt on emulated bridge
Pali Rohár <pali@...nel.org>
PCI: aardvark: Enable MSI-X support
Pali Rohár <pali@...nel.org>
PCI: aardvark: Fix setting MSI address
Pali Rohár <pali@...nel.org>
PCI: aardvark: Add support for masking MSI interrupts
Pali Rohár <pali@...nel.org>
PCI: aardvark: Refactor unmasking summary MSI interrupt
Marek Behún <kabel@...nel.org>
PCI: aardvark: Use dev_fwnode() instead of of_node_to_fwnode(dev->of_node)
Marek Behún <kabel@...nel.org>
PCI: aardvark: Make msi_domain_info structure a static driver structure
Marek Behún <kabel@...nel.org>
PCI: aardvark: Make MSI irq_chip structures static driver structures
Pali Rohár <pali@...nel.org>
PCI: aardvark: Check return value of generic_handle_domain_irq() when processing INTx IRQ
Pali Rohár <pali@...nel.org>
PCI: aardvark: Rewrite IRQ code to chained IRQ handler
Pali Rohár <pali@...nel.org>
PCI: aardvark: Replace custom PCIE_CORE_INT_* macros with PCI_INTERRUPT_*
Pali Rohár <pali@...nel.org>
PCI: aardvark: Disable common PHY when unbinding driver
Pali Rohár <pali@...nel.org>
PCI: aardvark: Disable link training when unbinding driver
Pali Rohár <pali@...nel.org>
PCI: aardvark: Assert PERST# when unbinding driver
Pali Rohár <pali@...nel.org>
PCI: aardvark: Fix memory leak in driver unbind
Pali Rohár <pali@...nel.org>
PCI: aardvark: Mask all interrupts when unbinding driver
Pali Rohár <pali@...nel.org>
PCI: aardvark: Disable bus mastering when unbinding driver
Pali Rohár <pali@...nel.org>
PCI: aardvark: Comment actions in driver remove method
Pali Rohár <pali@...nel.org>
PCI: aardvark: Clear all MSIs at setup
Pali Rohár <pali@...nel.org>
PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge
Pali Rohár <pali@...nel.org>
PCI: pci-bridge-emul: Add definitions for missing capabilities registers
Pali Rohár <pali@...nel.org>
PCI: pci-bridge-emul: Add description for class_revision field
Frederic Weisbecker <frederic@...nel.org>
rcu: Apply callbacks processing time limit only on softirq
Frederic Weisbecker <frederic@...nel.org>
rcu: Fix callbacks processing time limit retaining cond_resched()
Helge Deller <deller@....de>
Revert "parisc: Mark sched_clock unstable only if clocks are not syncronized"
Ricky WU <ricky_wu@...ltek.com>
mmc: rtsx: add 74 Clocks in power on flow
Sidhartha Kumar <sidhartha.kumar@...cle.com>
selftest/vm: verify remap destination address in mremap_test
Sidhartha Kumar <sidhartha.kumar@...cle.com>
selftest/vm: verify mmap addr in mremap_test
Wanpeng Li <wanpengli@...cent.com>
KVM: LAPIC: Enable timer posted-interrupt only when mwait/hlt is advertised
Paolo Bonzini <pbonzini@...hat.com>
KVM: x86/mmu: avoid NULL-pointer dereference on page freeing bugs
Paolo Bonzini <pbonzini@...hat.com>
KVM: x86: Do not change ICR on write to APIC_SELF_IPI
Wanpeng Li <wanpengli@...cent.com>
x86/kvm: Preserve BSP MSR_KVM_POLL_CONTROL across suspend/resume
Thomas Huth <thuth@...hat.com>
KVM: selftests: Silence compiler warning in the kvm_page_table_test
Paolo Bonzini <pbonzini@...hat.com>
kvm: selftests: do not use bitfields larger than 32-bits for PTEs
Hector Martin <marcan@...can.st>
iommu/dart: Add missing module owner to ops structure
Vlad Buslov <vladbu@...dia.com>
net/mlx5e: Lag, Don't skip fib events on current dst
Vlad Buslov <vladbu@...dia.com>
net/mlx5e: Lag, Fix fib_info pointer assignment
Vlad Buslov <vladbu@...dia.com>
net/mlx5e: Lag, Fix use-after-free in fib event handler
Aya Levin <ayal@...dia.com>
net/mlx5: Fix slab-out-of-bounds while reading resource dump menu
Javier Martinez Canillas <javierm@...hat.com>
fbdev: Make fb_release() return -ENODEV if fbdev was unregistered
Sandipan Das <sandipan.das@....com>
kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU
Baruch Siach <baruch@...s.co.il>
gpio: mvebu: drop pwm base assignment
Kai-Heng Feng <kai.heng.feng@...onical.com>
drm/amdgpu: Ensure HDA function is suspended before ASIC reset
Mario Limonciello <mario.limonciello@....com>
drm/amdgpu: don't set s3 and s0ix at the same time
Mario Limonciello <mario.limonciello@....com>
drm/amdgpu: explicitly check for s0ix when evicting resources
Nirmoy Das <nirmoy.das@....com>
drm/amdgpu: unify BO evicting method in amdgpu_ttm
Filipe Manana <fdmanana@...e.com>
btrfs: always log symlinks in full mode
Qu Wenruo <wqu@...e.com>
btrfs: force v2 space cache usage for subpage mount
Sergey Shtylyov <s.shtylyov@....ru>
smsc911x: allow using IRQ0
Vladimir Oltean <vladimir.oltean@....com>
selftests: ocelot: tc_flower_chains: specify conform-exceed action for policer
Michael Chan <michael.chan@...adcom.com>
bnxt_en: Fix unnecessary dropping of RX packets
Somnath Kotur <somnath.kotur@...adcom.com>
bnxt_en: Fix possible bnxt_open() failure caused by wrong RFS flag
Ido Schimmel <idosch@...dia.com>
selftests: mirror_gre_bridge_1q: Avoid changing PVID while interface is operational
David Howells <dhowells@...hat.com>
rxrpc: Enable IPv6 checksums on transport socket
Eric Dumazet <edumazet@...gle.com>
mld: respect RCU rules in ip6_mc_source() and ip6_mc_msfilter()
Qiao Ma <mqaio@...ux.alibaba.com>
hinic: fix bug of wq out of bound access
Filipe Manana <fdmanana@...e.com>
btrfs: do not BUG_ON() on failure to update inode when setting xattr
Kuogee Hsieh <quic_khsieh@...cinc.com>
drm/msm/dp: remove fail safe mode related code
Marc Kleine-Budde <mkl@...gutronix.de>
selftests/net: so_txtime: usage(): fix documentation of default clock
Marc Kleine-Budde <mkl@...gutronix.de>
selftests/net: so_txtime: fix parsing of start time stamp on 32 bit systems
Shravya Kumbham <shravya.kumbham@...inx.com>
net: emaclite: Add error handling for of_address_to_resource()
Eric Dumazet <edumazet@...gle.com>
net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter()
Yang Yingliang <yangyingliang@...wei.com>
net: cpsw: add missing of_node_put() in cpsw_probe_dt()
Niels Dossche <dossche.niels@...il.com>
net: mdio: Fix ENOMEM return value in BCM6368 mux bus controller
Yang Yingliang <yangyingliang@...wei.com>
net: stmmac: dwmac-sun8i: add missing of_node_put() in sun8i_dwmac_register_mdio_mux()
Yang Yingliang <yangyingliang@...wei.com>
net: dsa: mt7530: add missing of_node_put() in mt7530_setup()
Yang Yingliang <yangyingliang@...wei.com>
net: ethernet: mediatek: add missing of_node_put() in mtk_sgmii_init()
Trond Myklebust <trond.myklebust@...merspace.com>
NFSv4: Don't invalidate inode attributes on delegation return
Mustafa Ismail <mustafa.ismail@...el.com>
RDMA/irdma: Fix possible crash due to NULL netdev in notifier
Shiraz Saleem <shiraz.saleem@...el.com>
RDMA/irdma: Reduce iWARP QP destroy time
Tatyana Nikolova <tatyana.e.nikolova@...el.com>
RDMA/irdma: Flush iWARP QP if modified to ERR from RTR state
Cheng Xu <chengyou@...ux.alibaba.com>
RDMA/siw: Fix a condition race issue in MPA request processing
Olga Kornievskaia <kolga@...app.com>
SUNRPC release the transport of a relocated task with an assigned transport
Jann Horn <jannh@...gle.com>
selftests/seccomp: Don't call read() on TTY from background pgrp
Moshe Shemesh <moshe@...dia.com>
net/mlx5: Fix deadlock in sync reset flow
Moshe Shemesh <moshe@...dia.com>
net/mlx5: Avoid double clear or set of sync reset requested
Mark Zhang <markzhang@...dia.com>
net/mlx5e: Fix the calling of update_buffer_lossy() API
Paul Blakey <paulb@...dia.com>
net/mlx5e: CT: Fix queued up restore put() executing after relevant ft release
Vlad Buslov <vladbu@...dia.com>
net/mlx5e: Don't match double-vlan packets if cvlan is not set
Moshe Tal <moshet@...dia.com>
net/mlx5e: Fix trust state reset in reload
Yang Yingliang <yangyingliang@...wei.com>
iommu/dart: check return value after calling platform_get_resource()
Lu Baolu <baolu.lu@...ux.intel.com>
iommu/vt-d: Drop stop marker messages
Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
ASoC: soc-ops: fix error handling
Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
ASoC: dmaengine: Restore NULL prepare_slave_config() callback
Adam Wujek <dev_public@...ek.eu>
hwmon: (pmbus) disable PEC if not enabled
Armin Wolf <W_Armin@....de>
hwmon: (adt7470) Fix warning on module removal
Puyou Lu <puyou.lu@...il.com>
gpio: pca953x: fix irq_stat not updated when irq is disabled (irq_mask not set)
Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
gpio: visconti: Fix fwnode of GPIO IRQ
Duoming Zhou <duoming@....edu.cn>
NFC: netlink: fix sleep in atomic bug when firmware download timeout
Duoming Zhou <duoming@....edu.cn>
nfc: nfcmrvl: main: reorder destructive operations in nfcmrvl_nci_unregister_dev to avoid bugs
Duoming Zhou <duoming@....edu.cn>
nfc: replace improper check device_is_registered() in netlink related functions
Andreas Larsson <andreas@...sler.com>
can: grcan: only use the NAPI poll budget for RX
Andreas Larsson <andreas@...sler.com>
can: grcan: grcan_probe(): fix broken system id check for errata workaround needs
Daniel Hellstrom <daniel@...sler.com>
can: grcan: use ofdev->dev when allocating DMA memory
Oliver Hartkopp <socketcan@...tkopp.net>
can: isotp: remove re-binding of bound socket
Duoming Zhou <duoming@....edu.cn>
can: grcan: grcan_close(): fix deadlock
Jan Höppner <hoeppner@...ux.ibm.com>
s390/dasd: Fix read inconsistency for ESE DASD devices
Jan Höppner <hoeppner@...ux.ibm.com>
s390/dasd: Fix read for ESE with blksize < 4k
Stefan Haberland <sth@...ux.ibm.com>
s390/dasd: prevent double format of tracks for ESE devices
Stefan Haberland <sth@...ux.ibm.com>
s390/dasd: fix data corruption for ESE devices
Mark Brown <broonie@...nel.org>
ASoC: meson: Fix event generation for AUI CODEC mux
Mark Brown <broonie@...nel.org>
ASoC: meson: Fix event generation for G12A tohdmi mux
Mark Brown <broonie@...nel.org>
ASoC: meson: Fix event generation for AUI ACODEC mux
Mark Brown <broonie@...nel.org>
ASoC: wm8958: Fix change notifications for DSP controls
Mark Brown <broonie@...nel.org>
ASoC: da7219: Fix change notifications for tone generator frequency
Thomas Pfaff <tpfaff@....com>
genirq: Synchronize interrupt thread startup
Tan Tee Min <tee.min.tan@...ux.intel.com>
net: stmmac: disable Split Header (SPH) for Intel platforms
Niels Dossche <dossche.niels@...il.com>
firewire: core: extend card->lock in fw_core_handle_bus_reset
Jakob Koschel <jakobkoschel@...il.com>
firewire: remove check of list iterator against head past the loop body
Chengfeng Ye <cyeaa@...nect.ust.hk>
firewire: fix potential uaf in outbound_phy_packet_callback()
Kurt Kanzenbach <kurt@...utronix.de>
timekeeping: Mark NMI safe time accessors as notrace
Trond Myklebust <trond.myklebust@...merspace.com>
Revert "SUNRPC: attempt AF_LOCAL connect on setup"
Nick Kossifidis <mick@....forth.gr>
RISC-V: relocate DTB if it's outside memory region
Marek Marczykowski-Górecki <marmarek@...isiblethingslab.com>
drm/amdgpu: do not use passthrough mode in Xen dom0
Harry Wentland <harry.wentland@....com>
drm/amd/display: Avoid reading audio pattern past AUDIO_CHANNELS_COUNT
Nicolin Chen <nicolinc@...dia.com>
iommu/arm-smmu-v3: Fix size calculation in arm_smmu_mm_invalidate_range()
David Stevens <stevensd@...omium.org>
iommu/vt-d: Calculate mask for non-aligned flushes
Kyle Huey <me@...ehuey.com>
KVM: x86/svm: Account for family 17h event renumberings in amd_pmc_perf_hw_id
Thomas Gleixner <tglx@...utronix.de>
x86/fpu: Prevent FPU state corruption
Andrei Lalaev <andrei.lalaev@...id.com>
gpiolib: of: fix bounds check for 'gpio-reserved-ranges'
Brian Norris <briannorris@...omium.org>
mmc: core: Set HS clock speed before sending HS CMD13
Samuel Holland <samuel@...lland.org>
mmc: sunxi-mmc: Fix DMA descriptors allocated above 32 bits
Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
mmc: sdhci-msm: Reset GCC_SDCC_BCR register for SDHC
Takashi Sakamoto <o-takashi@...amocchi.jp>
ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes
Zihao Wang <wzhd@...c.edu>
ALSA: hda/realtek: Add quirk for Yoga Duet 7 13ITL6 speakers
Helge Deller <deller@....de>
parisc: Merge model and model name into one line in /proc/cpuinfo
Maciej W. Rozycki <macro@...am.me.uk>
MIPS: Fix CP0 counter erratum detection for R4k CPUs
-------------
Diffstat:
Makefile | 4 +-
arch/mips/include/asm/timex.h | 8 +-
arch/mips/kernel/time.c | 11 +-
arch/parisc/kernel/processor.c | 3 +-
arch/parisc/kernel/setup.c | 2 +
arch/parisc/kernel/time.c | 6 +-
arch/riscv/mm/init.c | 21 +-
arch/x86/kernel/fpu/core.c | 67 ++--
arch/x86/kernel/kvm.c | 13 +
arch/x86/kvm/cpuid.c | 5 +
arch/x86/kvm/lapic.c | 10 +-
arch/x86/kvm/mmu/mmu.c | 2 +
arch/x86/kvm/svm/pmu.c | 28 +-
drivers/firewire/core-card.c | 3 +
drivers/firewire/core-cdev.c | 4 +-
drivers/firewire/core-topology.c | 9 +-
drivers/firewire/core-transaction.c | 30 +-
drivers/firewire/sbp2.c | 13 +-
drivers/gpio/gpio-mvebu.c | 7 -
drivers/gpio/gpio-pca953x.c | 4 +-
drivers/gpio/gpio-visconti.c | 7 +-
drivers/gpio/gpiolib-of.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 8 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 30 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 23 --
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 -
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 30 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 +-
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +-
drivers/gpu/drm/msm/dp/dp_display.c | 6 -
drivers/gpu/drm/msm/dp/dp_panel.c | 11 -
drivers/gpu/drm/msm/dp/dp_panel.h | 1 -
drivers/hwmon/adt7470.c | 4 +-
drivers/hwmon/pmbus/pmbus_core.c | 3 +
drivers/infiniband/hw/irdma/cm.c | 26 +-
drivers/infiniband/hw/irdma/utils.c | 21 +-
drivers/infiniband/hw/irdma/verbs.c | 4 +-
drivers/infiniband/sw/siw/siw_cm.c | 7 +-
drivers/iommu/apple-dart.c | 10 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 9 +-
drivers/iommu/intel/iommu.c | 27 +-
drivers/iommu/intel/svm.c | 4 +
drivers/mmc/core/mmc.c | 23 +-
drivers/mmc/host/rtsx_pci_sdmmc.c | 29 +-
drivers/mmc/host/sdhci-msm.c | 42 ++
drivers/mmc/host/sunxi-mmc.c | 5 +-
drivers/net/can/grcan.c | 46 +--
drivers/net/dsa/mt7530.c | 1 +
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 +-
drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c | 7 +-
drivers/net/ethernet/mediatek/mtk_sgmii.c | 1 +
.../ethernet/mellanox/mlx5/core/diag/rsc_dump.c | 31 +-
.../ethernet/mellanox/mlx5/core/en/port_buffer.c | 4 +-
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 4 +
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 10 +
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 11 +
drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 60 +--
drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c | 38 +-
drivers/net/ethernet/mellanox/mlx5/core/lag_mp.h | 7 +-
drivers/net/ethernet/smsc/smsc911x.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 1 +
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 1 +
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
drivers/net/ethernet/ti/cpsw_new.c | 5 +-
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 15 +-
drivers/net/mdio/mdio-mux-bcm6368.c | 2 +-
drivers/nfc/nfcmrvl/main.c | 2 +-
drivers/pci/controller/pci-aardvark.c | 428 ++++++++++++++++-----
drivers/pci/pci-bridge-emul.c | 49 ++-
drivers/s390/block/dasd.c | 18 +-
drivers/s390/block/dasd_eckd.c | 28 +-
drivers/s390/block/dasd_int.h | 14 +
drivers/video/fbdev/core/fbmem.c | 5 +-
fs/btrfs/disk-io.c | 11 +
fs/btrfs/tree-log.c | 14 +-
fs/btrfs/xattr.c | 6 +-
fs/nfs/nfs4proc.c | 12 +-
include/linux/stmmac.h | 1 +
kernel/irq/internals.h | 2 +
kernel/irq/irqdesc.c | 2 +
kernel/irq/manage.c | 39 +-
kernel/rcu/tree.c | 31 +-
kernel/time/timekeeping.c | 4 +-
net/can/isotp.c | 22 +-
net/ipv4/igmp.c | 9 +-
net/ipv6/mcast.c | 8 +-
net/nfc/core.c | 29 +-
net/nfc/netlink.c | 4 +-
net/rxrpc/local_object.c | 3 +
net/sunrpc/clnt.c | 11 +-
net/sunrpc/xprtsock.c | 3 -
sound/firewire/fireworks/fireworks_hwdep.c | 1 +
sound/pci/hda/patch_realtek.c | 1 +
sound/soc/codecs/da7219.c | 14 +-
sound/soc/codecs/wm8958-dsp2.c | 8 +-
sound/soc/meson/aiu-acodec-ctrl.c | 2 +-
sound/soc/meson/aiu-codec-ctrl.c | 2 +-
sound/soc/meson/g12a-tohdmitx.c | 2 +-
sound/soc/soc-generic-dmaengine-pcm.c | 6 +-
sound/soc/soc-ops.c | 2 +-
.../drivers/net/ocelot/tc_flower_chains.sh | 2 +-
.../selftests/kvm/include/x86_64/processor.h | 15 +
tools/testing/selftests/kvm/kvm_page_table_test.c | 2 +-
tools/testing/selftests/kvm/lib/x86_64/processor.c | 192 ++++-----
.../net/forwarding/mirror_gre_bridge_1q.sh | 3 +
tools/testing/selftests/net/so_txtime.c | 4 +-
tools/testing/selftests/seccomp/seccomp_bpf.c | 10 +-
tools/testing/selftests/vm/mremap_test.c | 53 +++
110 files changed, 1293 insertions(+), 656 deletions(-)
Powered by blists - more mailing lists