In case we will have multiple contexts/processes, we can't just
increment aggregated counters. We need to make them atomic as they can
be incremented by multiple processes
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Update the email to my kernel.org email address and update the git
repository address to the git.kernel.org
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We need the fixes in here as well.
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull locking fixes from Thomas Gleixner:
 "Two more places which invoke tracing from RCU disabled regions in the
  idle path.

  Similar to the entry path the low level idle functions have to be
  non-instrumentable"

* tag 'locking-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  intel_idle: Fix intel_idle() vs tracing
  sched/idle: Fix arch_cpu_idle() vs tracing

Pull irq fixes from Thomas Gleixner:
 "Two fixes for irqchip drivers:

   - Save and restore the GICV3 ITS state unconditionally on
     suspend/resume to handle firmware which fails to do so.

   - Use the correct index into the fwspec parameters to read the irq
     trigger type in the EXIU chip driver"

* tag 'irq-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Unconditionally save/restore the ITS state on suspend
  irqchip/exiu: Fix the index of fwspec for IRQ type

Pull EFI fixes from Borislav Petkov:
 "More EFI fixes forwarded from Ard Biesheuvel:

   - revert efivarfs kmemleak fix again - it was a false positive

   - make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does
     not pull in other dependencies unnecessarily if CONFIG_EFI is not
     set

   - defer attempts to load SSDT overrides from EFI vars until after the
     efivar layer is up"

* tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: EFI_EARLYCON should depend on EFI
  efivarfs: revert "fix memory leak in efivarfs_create()"
  efi/efivars: Set generic ops before loading SSDT

Pull x86 fixes from Borislav Petkov:
 "A couple of urgent fixes which accumulated this last week:

   - Two resctrl fixes to prevent refcount leaks when manipulating the
     resctrl fs (Xiaochen Shen)

   - Correct prctl(PR_GET_SPECULATION_CTRL) reporting (Anand K Mistry)

   - A fix to not lose already seen MCE severity which determines
     whether the machine can recover (Gabriele Paoloni)"

* tag 'x86_urgent_for_v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Do not overwrite no_way_out if mce_end() fails
  x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb
  x86/resctrl: Add necessary kernfs_put() calls to prevent refcount leak
  x86/resctrl: Remove superfluous kernfs_get() calls to prevent refcount leak

Pull RISC-V fixes from Palmer Dabbelt:
 "I've collected a handful of fixes over the past few weeks:

   - A fix to un-break the build-id argument to the vDSO build, which is
     necessary for the LLVM linker.

   - A fix to initialize the jump label subsystem, without which it (and
     all the stuff that uses it) doesn't actually function.

   - A fix to include <asm/barrier.h> from <vdso/processor.h>, without
     which some drivers won't compile"

* tag 'riscv-for-linus-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: fix barrier() use in <vdso/processor.h>
  RISC-V: Add missing jump label initialization
  riscv: Explicitly specify the build id style in vDSO Makefile again

Merge tag 'kbuild-fixes-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove unused OBJSIZE variable.

 - Fix rootless deb-pkg build in a setgid directory.

* tag 'kbuild-fixes-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  builddeb: Fix rootless build in setuid/setgid directory
  kbuild: remove unused OBJSIZE

Merge tag 'perf-tools-fixes-for-v5.10-2020-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tool fixes from Arnaldo Carvalho de Melo:

 - Fix die_entrypc() when DW_AT_ranges DWARF attribute not available

 - Cope with broken DWARF (missing DW_AT_declaration) generated by some
   recent gcc versions

 - Do not generate CGROUP metadata events when not asked to in 'perf
   record'

 - Use proper CPU for shadow stats in 'perf stat'

 - Update copy of libbpf's hashmap.c, silencing tools/perf build warning

 - Fix return value in 'perf diff'

* tag 'perf-tools-fixes-for-v5.10-2020-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf probe: Change function definition check due to broken DWARF
  perf probe: Fix to die_entrypc() returns error correctly
  perf stat: Use proper cpu for shadow stats
  perf record: Synthesize cgroup events only if needed
  perf diff: Fix error return value in __cmd_diff()
  perf tools: Update copy of libbpf's hashmap.c

Pull USB / PHY driver fixes from Greg KH:
 "Here are a few small USB and PHY driver fixes for 5.10-rc6. They
  include:

   - small PHY driver fixes to resolve reported issues

   - USB quirks added for "broken" devices

   - typec fixes for reported problems

   - USB gadget fixes for small issues

  Full details are in the shortlog, nothing major in here and all have
  been in linux-next with no reported issues"

* tag 'usb-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: typec: stusb160x: fix power-opmode property with typec-power-opmode
  USB: core: Change %pK for __user pointers to %px
  USB: core: Fix regression in Hercules audio card
  usb: gadget: Fix memleak in gadgetfs_fill_super
  usb: gadget: f_midi: Fix memleak in f_midi_alloc
  USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for Lenovo A630Z TIO built-in usb-audio card
  usb: typec: qcom-pmic-typec: fix builtin build errors
  phy: mediatek: fix spelling mistake in Kconfig "veriosn" -> "version"
  phy: qualcomm: Fix 28 nm Hi-Speed USB PHY OF dependency
  phy: qualcomm: usb: Fix SuperSpeed PHY OF dependency
  phy: intel: PHY_INTEL_KEEMBAY_EMMC should depend on ARCH_KEEMBAY
  usb: cdns3: gadget: calculate TD_SIZE based on TD
  usb: cdns3: gadget: initialize link_trb as NULL
  phy: cpcap-usb: Use IRQF_ONESHOT
  phy: qcom-qmp: Initialize another pointer to NULL
  phy: tegra: xusb: Fix dangling pointer on probe failure
  phy: usb: Fix incorrect clearing of tca_drv_sel bit in SETUP reg for 7211

Pull char/misc driver fixes from Greg KH:
 "Here are some small misc driver fixes for 5.10-rc6.  They include:

   - interconnect fixes for reported problems

   - habanalabs bugfix for found issue when doing the switch fallthrough
     patches

   - MAINTAINERS file update for coresight reviewers/maintainers

  All have been in linux-next with no reported issues"

* tag 'char-misc-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  MAINTAINERS: Adding help for coresight subsystem
  habanalabs/gaudi: fix missing code in ECC handling
  interconnect: fix memory trashing in of_count_icc_providers()
  interconnect: qcom: qcs404: Remove GPU and display RPM IDs
  interconnect: qcom: msm8916: Remove rpm-ids from non-RPM nodes
  interconnect: qcom: msm8974: Don't boost the NoC rate during boot
  interconnect: qcom: msm8974: Prevent integer overflow in rate

Merge tag 'asm-generic-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic fix from Arnd Bergmann:
 "Add correct MAX_POSSIBLE_PHYSMEM_BITS setting to asm-generic.

  This is a single bugfix for a bug that Stefan Agner found on 32-bit
  Arm, but that exists on several other architectures"

* tag 'asm-generic-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed

Pull ARM SoC fixes from Arnd Bergmann:
 "Another set of patches for devicetree files and Arm SoC specific
  drivers:

   - A fix for OP-TEE shared memory on non-SMP systems

   - multiple code fixes for the OMAP platform, including one regression
     for the CPSW network driver and a few runtime warning fixes

   - Some DT patches for the Rockchip RK3399 platform, in particular
     fixing the MMC device ordering that recently became
     nondeterministic with async probe.

   - Multiple DT fixes for the Tegra platform, including a regression
     fix for suspend/resume on TX2

   - A regression fix for a user-triggered fault in the NXP dpio driver

   - A regression fix for a bug caused by an earlier bug fix in the
     xilinx firmware driver

   - Two more DTC warning fixes

   - Sylvain Lemieux steps down as maintainer for the NXP LPC32xx
     platform"

* tag 'arm-soc-fixes-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
  arm64: tegra: Fix Tegra234 VDK node names
  arm64: tegra: Wrong AON HSP reg property size
  arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1
  arm64: tegra: Correct the UART for Jetson Xavier NX
  arm64: tegra: Disable the ACONNECT for Jetson TX2
  optee: add writeback to valid memory type
  firmware: xilinx: Use hash-table for api feature check
  firmware: xilinx: Fix SD DLL node reset issue
  soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)
  ARM: dts: dra76x: m_can: fix order of clocks
  bus: ti-sysc: suppress err msg for timers used as clockevent/source
  MAINTAINERS: Remove myself as LPC32xx maintainers
  arm64: dts: qcom: clear the warnings caused by empty dma-ranges
  arm64: dts: broadcom: clear the warnings caused by empty dma-ranges
  ARM: dts: am437x-l4: fix compatible for cpsw switch dt node
  arm64: dts: rockchip: Reorder LED triggers from mmc devices on rk3399-roc-pc.
  arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.
  arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance
  arm64: dts: rockchip: fix NanoPi R2S GMAC clock name
  ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled()
  ...

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.10-rc6, including fixes from the WiFi driver,
  and CAN subtrees.

  Current release - regressions:

   - gro_cells: reduce number of synchronize_net() calls

   - ch_ktls: release a lock before jumping to an error path

  Current release - always broken:

   - tcp: Allow full IP tos/IPv6 tclass to be reflected in L3 header

  Previous release - regressions:

   - net/tls: fix missing received data after fast remote close

   - vsock/virtio: discard packets only when socket is really closed

   - sock: set sk_err to ee_errno on dequeue from errq

   - cxgb4: fix the panic caused by non smac rewrite

  Previous release - always broken:

   - tcp: fix corner cases around setting ECN with BPF selection of
     congestion control

   - tcp: fix race condition when creating child sockets from syncookies
     on loopback interface

   - usbnet: ipheth: fix connectivity with iOS 14

   - tun: honor IOCB_NOWAIT flag

   - net/packet: fix packet receive on L3 devices without visible hard
     header

   - devlink: Make sure devlink instance and port are in same net
     namespace

   - net: openvswitch: fix TTL decrement action netlink message format

   - bonding: wait for sysfs kobject destruction before freeing struct
     slave

   - net: stmmac: fix upstream patch applied to the wrong context

   - bnxt_en: fix return value and unwind in probe error paths

  Misc:

   - devlink: add extra layer of categorization to the reload stats uAPI
     before it's released"

* tag 'net-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (68 commits)
  sock: set sk_err to ee_errno on dequeue from errq
  mptcp: fix NULL ptr dereference on bad MPJ
  net: openvswitch: fix TTL decrement action netlink message format
  can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check
  can: m_can: m_can_dev_setup(): add support for bosch mcan version 3.3.0
  can: m_can: fix nominal bitiming tseg2 min for version >= 3.1
  can: m_can: m_can_open(): remove IRQF_TRIGGER_FALLING from request_threaded_irq()'s flags
  can: mcp251xfd: mcp251xfd_probe(): bail out if no IRQ was given
  can: gs_usb: fix endianess problem with candleLight firmware
  ch_ktls: lock is not freed
  net/tls: Protect from calling tls_dev_del for TLS RX twice
  devlink: Make sure devlink instance and port are in same net namespace
  devlink: Hold rtnl lock while reading netdev attributes
  ptp: clockmatrix: bug fix for idtcm_strverscmp
  enetc: Let the hardware auto-advance the taprio base-time of 0
  gro_cells: reduce number of synchronize_net() calls
  net: stmmac: fix incorrect merge of patch upstream
  ipv6: addrlabel: fix possible memory leak in ip6addrlbl_net_init
  Documentation: netdev-FAQ: suggest how to post co-dependent series
  ibmvnic: enhance resetting status check during module exit
  ...

Pull SCSI fixes from James Bottomley:
 "Three small fixes in the UFS driver: two are for power management
  issues and the third is to fix a slew of problem in the sysfs code"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: Fix race between shutdown and runtime resume flow
  scsi: ufs: Make sure clk scaling happens only when HBA is runtime ACTIVE
  scsi: ufs: Fix unexpected values from ufshcd_read_desc_param()

Pull io_uring fixes from Jens Axboe:

 - Out of bounds fix for the cq size cap from earlier this release (Joseph)

 - iov_iter type check fix (Pavel)

 - Files grab + cancelation fix (Pavel)

* tag 'io_uring-5.10-2020-11-27' of git://git.kernel.dk/linux-block:
  io_uring: fix files grab/cancel race
  io_uring: fix ITER_BVEC check
  io_uring: fix shift-out-of-bounds when round up cq size

Pull block fix from Jens Axboe:
 "Just a single fix, for a crash in the keyslot manager"

* tag 'block-5.10-2020-11-27' of git://git.kernel.dk/linux-block:
  block/keyslot-manager: prevent crash when num_slots=1

Pull btrfs fixes from David Sterba:
 "A few fixes for various warnings that accumulated over past two weeks:

   - tree-checker: add missing return values for some errors

   - lockdep fixes
      - when reading qgroup config and starting quota rescan
      - reverse order of quota ioctl lock and VFS freeze lock

   - avoid accessing potentially stale fs info during device scan,
     reported by syzbot

   - add scope NOFS protection around qgroup relation changes

   - check for running transaction before flushing qgroups

   - fix tracking of new delalloc ranges for some cases"

* tag 'for-5.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix lockdep splat when enabling and disabling qgroups
  btrfs: do nofs allocations when adding and removing qgroup relations
  btrfs: fix lockdep splat when reading qgroup config on mount
  btrfs: tree-checker: add missing returns after data_ref alignment checks
  btrfs: don't access possibly stale fs_info data for printing duplicate device
  btrfs: tree-checker: add missing return after error in root_item
  btrfs: qgroup: don't commit transaction when we already hold the handle
  btrfs: fix missing delalloc new bit for new delalloc ranges

Pull rdma fixes from Jason Gunthorpe:
 "Two security issues and several small bug fixes. Things seem to have
  stabilized for this release here.

  Summary:

   - Significant out of bounds access security issue in i40iw

   - Fix misuse of mmu notifiers in hfi1

   - Several errors in the register map/usage in hns

   - Missing error returns in mthca"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Bugfix for memory window mtpt configuration
  RDMA/hns: Fix retry_cnt and rnr_cnt when querying QP
  RDMA/hns: Fix wrong field of SRQ number the device supports
  IB/hfi1: Ensure correct mm is used at all times
  RDMA/i40iw: Address an mmap handler exploit in i40iw
  IB/mthca: fix return value of error branch in mthca_init_cq()

Pull mtd fixes from Miquel Raynal:
 "Because of a recent change in the core, NAND controller drivers
  initializing the ECC engine too early in the probe path are broken.

  Drivers should wait for the NAND device to be discovered and its
  memory layout known before doing any ECC related initialization, so
  instead of reverting the faulty change which is actually moving in the
  right direction, let's fix the drivers directly: socrates, sharpsl,
  r852, plat_nand, pasemi, tmio, txx9ndfmc, orion, mpc5121, lpc32xx_slc,
  lpc32xx_mlc, fsmc, diskonchip, davinci, cs553x, au1550, ams-delta,
  xway and gpio"

* tag 'mtd/fixes-for-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: sharpsl: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: r852: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: tmio: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: txx9ndfmc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: lpc32xx_slc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: lpc32xx_mlc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: fsmc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: diskonchip: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: davinci: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: cs553x: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()

Pull spi fixes from Mark Brown:
 "A few fixes for v5.10,  one for the core which fixes some potential
  races for controllers with multiple chip selects when configuration of
  the chip select for one client device races with the addition and
  initial setup of an additional client"

* tag 'spi-fix-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: dw: Fix spi registration for controllers overriding CS
  spi: imx: fix the unbalanced spi runtime pm management
  spi: spi-nxp-fspi: fix fspi panic by unexpected interrupts
  spi: Take the SPI IO-mutex in the spi_setup() method

Pull virtual digital TV driver fixes from Mauro Carvalho Chehab:
 "A series of fixes for the new virtual digital TV driver (vidtv), which
  is meant to help doing tests with the digital TV core and media
  userspace apps and libraries.

  They cover a series of issues I found on it, together with a few new
  things in order to make it easier to detect problems at the DVB core"

* tag 'media/v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (36 commits)
  media: vidtv.rst: add kernel-doc markups
  media: vidtv.rst: update vidtv documentation
  media: vidtv: simplify EIT write function
  media: vidtv: simplify NIT write function
  media: vidtv: simplify SDT write function
  media: vidtv: cleanup PMT write table function
  media: vidtv: cleanup PAT write function
  media: vidtv: cleanup PSI table header function
  media: vidtv: cleanup PSI descriptor write function
  media: vidtv: simplify the crc writing logic
  media: vidtv: simplify PSI write function
  media: vidtv: add date to the current event
  media: vidtv: fix service_id at SDT table
  media: vidtv: fix service type
  media: vidtv: add a PID entry for the NIT table
  media: vidtv: properly fill EIT service_id
  media: vidtv: fix the network ID range
  media: vidtv: improve EIT data
  media: vidtv: cleanup null packet initialization logic
  media: vidtv: pre-initialize mux arrays
  ...

  CC      drivers/hwtracing/coresight/coresight-cti-core.o
  CC      drivers/hwtracing/coresight/coresight-cti-platform.o
  CC      drivers/hwtracing/coresight/coresight-cti-sysfs.o
drivers/hwtracing/coresight/coresight-stm.c:109: warning: Function parameter or member 'guaranteed' not described in 'channel_space'
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-16-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

  CC      drivers/hwtracing/coresight/coresight-etm4x-core.o
  CC      drivers/hwtracing/coresight/coresight-etm4x-sysfs.o
  CC      drivers/hwtracing/coresight/coresight-stm.o
drivers/hwtracing/coresight/coresight-tpiu.c:53: warning: Cannot understand  * @base:       memory mapped base address for this component.
 on line 53 - I thought it was a doc line
  CC      drivers/hwtracing/coresight/coresight-cpu-debug.o
  CC      drivers/hwtracing/coresight/coresight-catu.o
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-15-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

  CC      drivers/hwtracing/coresight/coresight-etm4x-sysfs.o
  CC      drivers/hwtracing/coresight/coresight-stm.o
drivers/hwtracing/coresight/coresight-core.c:440: warning: Function parameter or member 'csdev' not described in 'coresight_disable_source'
drivers/hwtracing/coresight/coresight-core.c:670: warning: Function parameter or member 'csdev' not described in 'coresight_get_ref'
drivers/hwtracing/coresight/coresight-core.c:687: warning: Function parameter or member 'csdev' not described in 'coresight_put_ref'
drivers/hwtracing/coresight/coresight-core.c:758: warning: Function parameter or member 'sink' not described in '_coresight_build_path'
  CC      drivers/hwtracing/coresight/coresight-cpu-debug.o
  CC      drivers/hwtracing/coresight/coresight-catu.o
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-14-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

alloc_pages_node() return should be checked before calling
dma_map_page() to make sure that valid page is mapped or
else it can lead to aborts as below:

 Unable to handle kernel paging request at virtual address ffffffc008000000
 Mem abort info:
 <snip>...
 pc : __dma_inv_area+0x40/0x58
 lr : dma_direct_map_page+0xd8/0x1c8

 Call trace:
  __dma_inv_area
  tmc_pages_alloc
  tmc_alloc_data_pages
  tmc_alloc_sg_table
  tmc_init_etr_sg_table
  tmc_alloc_etr_buf
  tmc_enable_etr_sink_sysfs
  tmc_enable_etr_sink
  coresight_enable_path
  coresight_enable
  enable_source_store
  dev_attr_store
  sysfs_kf_write

Fixes: 99443ea1 ("coresight: Add generic TMC sg table framework")
Cc: stable@vger.kernel.org
Reviewed-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMao Jinlong <jinlmao@codeaurora.org>
Signed-off-by: NSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-13-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the following coccinelle warnings:

./drivers/hwtracing/coresight/coresight-tmc-etr.c:957:2-15: WARNING: Assignment of 0/1 to bool variable

Fix them by assigning boolean values.
Reported-by: NTosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: NKaixu Xia <kaixuxia@tencent.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-12-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

There was a report of NULL pointer dereference in ETF enable
path for perf CS mode with PID monitoring. It is almost 100%
reproducible when the process to monitor is something very
active such as chrome and with ETF as the sink, not ETR.

But code path shows that ETB has a similar path as ETF, so
there could be possible NULL pointer dereference crash in
ETB as well. Currently in a bid to find the pid, the owner
is dereferenced via task_pid_nr() call in etb_enable_perf()
and with owner being NULL, we can get a NULL pointer
dereference, so have a similar fix as ETF where we cache PID
in alloc_buffer() callback which is called as the part of
etm_setup_aux().

Fixes: 75d7dbd3 ("coresight: etb10: Add support for CPU-wide trace scenarios")
Cc: stable@vger.kernel.org
Signed-off-by: NSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-11-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

There was a report of NULL pointer dereference in ETF enable
path for perf CS mode with PID monitoring. It is almost 100%
reproducible when the process to monitor is something very
active such as chrome and with ETF as the sink and not ETR.
Currently in a bid to find the pid, the owner is dereferenced
via task_pid_nr() call in tmc_enable_etf_sink_perf() and with
owner being NULL, we get a NULL pointer dereference.

Looking at the ETR and other places in the kernel, ETF and the
ETB are the only places trying to dereference the task(owner)
in tmc_enable_etf_sink_perf() which is also called from the
sched_in path as in the call trace. Owner(task) is NULL even
in the case of ETR in tmc_enable_etr_sink_perf(), but since we
cache the PID in alloc_buffer() callback and it is done as part
of etm_setup_aux() when allocating buffer for ETR sink, we never
dereference this NULL pointer and we are safe. So lets do the
same thing with ETF and cache the PID to which the cs_buffer
belongs in tmc_alloc_etf_buffer() as done for ETR. This will
also remove the unnecessary function calls(task_pid_nr()) since
we are caching the PID.

Easily reproducible running below:

 perf record -e cs_etm/@tmc_etf0/ -N -p <pid>

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000548
Mem abort info:
  ESR = 0x96000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
<snip>...
Call trace:
 tmc_enable_etf_sink+0xe4/0x280
 coresight_enable_path+0x168/0x1fc
 etm_event_start+0x8c/0xf8
 etm_event_add+0x38/0x54
 event_sched_in+0x194/0x2ac
 group_sched_in+0x54/0x12c
 flexible_sched_in+0xd8/0x120
 visit_groups_merge+0x100/0x16c
 ctx_flexible_sched_in+0x50/0x74
 ctx_sched_in+0xa4/0xa8
 perf_event_sched_in+0x60/0x6c
 perf_event_context_sched_in+0x98/0xe0
 __perf_event_task_sched_in+0x5c/0xd8
 finish_task_switch+0x184/0x1cc
 schedule_tail+0x20/0xec
 ret_from_fork+0x4/0x18

Fixes: 880af782 ("coresight: tmc-etf: Add support for CPU-wide trace scenarios")
Cc: stable@vger.kernel.org
Signed-off-by: NSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-10-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As THIS_MODULE has been set in platform_driver_register(), so remove it
from static funnel driver and static replicator driver to avoid set it
twice.
Signed-off-by: NQi Liu <liuqi115@huawei.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-9-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

TRCVIPCSSCTLR is not present if the TRCIDR4.NUMPC > 0. Thus we
should only access the register if it is present, preventing
any undesired behavior.

Cc: stable@vger.kernel.org
Signed-off-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-8-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

TRCPROCSELR is not implemented if the TRCIDR3.NUMPROC == 0. Skip
accessing the register in such cases.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-7-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Since ETMv4.2, TRCIDR3.NUMPROCS has been extended to a 5bit field
by encoding the top 2 bits[4:3] in TRCIDR3.[13:12], which were RES0.
Fix the driver to compute the field correctly for ETMv4.2+

Cc: Mike Leach <mike.leach@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-6-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The TRCCIDCTLR1 is only implemented if TRCIDR4.NUMCIDC > 4.
Don't touch the register if it is not implemented.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-5-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

TRCVMIDCTRL1 is only implemented only if the TRCIDR4.NUMVMIDC > 4.
We must not touch the register otherwise.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-4-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes coccicheck warning:

./drivers/hwtracing/coresight/coresight-core.c:421:4-5: Unneeded semicolon
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NZou Wei <zou_wei@huawei.com>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-3-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

There is a bug on the systems supporting to skip power up
(qcom,skip-power-up) where setting LPOVERRIDE bit(low-power
state override behaviour) will result in CPU hangs/lockups
even on the implementations which supports it. So skip
setting the LPOVERRIDE bit for such platforms.

Fixes: 02510a5a ("coresight: etm4x: Add support to skip trace unit power up")
Cc: stable@vger.kernel.org
Reviewed-by: NSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: NSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-2-mathieu.poirier@linaro.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull drm fixes from Dave Airlie:
 "Unfortunately this has a bit of thanksgiving stuffing in it, as it a
  bit larger (at least the vc4 patches) than I like at this point in
  time.

  The main thing is it has a bunch of regressions fixes for reports in
  the last couple of weeks, ast, nouveau and the amdgpu ttm init fix,
  along with the usual selection of amdgpu and i915 fixes.

  The vc4 fixes are a few but they are fixes and the nastiest one is a
  fix for when you have a 2.4Ghz Wifi and a HDMI signal with a clock in
  that range and there isn't enough shielding and interference happen
  between the two, the fix adjusts the mode clock to try and avoid the
  wifi channels in that case.

  Hopefully you can merge this between turkey slices, and next week
  should be quieter.

  ast:
   - LUT loading regression fix

  nouveau:
   - relocations regression fix

  amdgpu:
   - ttm init oops fix
   - Runtime pm fix
   - SI UVD suspend/resume fix
   - HDCP fix for headless cards
   - Sienna Cichlid golden register update

  i915:
   - Fix Perf/OA workaround register corruption (Lionel)
   - Correct a comment statement in GVT (Yan)
   - Fix GT enable/disable iterrupts, including a race condition that
     prevented GPU to go idle (Chris)
   - Free stale request on destroying the virtual engine (Chris)

  exynos:
   - config dependency fix

  mediatek:
   - unused var removal
   - horizonal front/back porch formula fix

  vc4:
   - wifi and hdmi interference fix
   - mode rejection fixes
   - use after free fix
   - cleanup some code"

* tag 'drm-fixes-2020-11-27-1' of git://anongit.freedesktop.org/drm/drm: (28 commits)
  drm/nouveau: fix relocations applying logic and a double-free
  drm/ast: Reload gamma LUT after changing primary plane's color format
  drm/amdgpu: Fix size calculation when init onchip memory
  drm/amdgpu: update golden setting for sienna_cichlid
  drm/amd/display: Avoid HDCP initialization in devices without output
  drm/i915/gt: Free stale request on destroying the virtual engine
  drm/i915/gt: Don't cancel the interrupt shadow too early
  drm/i915/gt: Track signaled breadcrumbs outside of the breadcrumb spinlock
  drm/amdgpu: fix a page fault
  drm/amdgpu: fix SI UVD firmware validate resume fail
  drm/amd/amdgpu: fix null pointer in runtime pm
  drm/i915/gt: Defer enabling the breadcrumb interrupt to after submission
  drm/i915/gvt: correct a false comment of flag F_UNALIGN
  drm/i915/perf: workaround register corruption in OATAILPTR
  drm/vc4: kms: Don't disable the muxing of an active CRTC
  drm/vc4: kms: Store the unassigned channel list in the state
  drm/exynos: depend on COMMON_CLK to fix compile tests
  drm/mediatek: dsi: Modify horizontal front/back porch byte formula
  drm/vc4: hdmi: Disable Wifi Frequencies
  dt-bindings: display: Add a property to deal with WiFi coexistence
  ...