1. 19 Apr, 2019 4 commits
    • Roman Gushchin's avatar
      cgroup: cgroup v2 freezer · 76f969e8
      Roman Gushchin authored
      Cgroup v1 implements the freezer controller, which provides an ability
      to stop the workload in a cgroup and temporarily free up some
      resources (cpu, io, network bandwidth and, potentially, memory)
      for some other tasks. Cgroup v2 lacks this functionality.
      This patch implements freezer for cgroup v2.
      Cgroup v2 freezer tries to put tasks into a state similar to jobctl
      stop. This means that tasks can be killed, ptraced (using
      PTRACE_SEIZE*), and interrupted. It is possible to attach to
      a frozen task, get some information (e.g. read registers) and detach.
      It's also possible to migrate a frozen tasks to another cgroup.
      This differs cgroup v2 freezer from cgroup v1 freezer, which mostly
      tried to imitate the system-wide freezer. However uninterruptible
      sleep is fine when all tasks are going to be frozen (hibernation case),
      it's not the acceptable state for some subset of the system.
      Cgroup v2 freezer is not supporting freezing kthreads.
      If a non-root cgroup contains kthread, the cgroup still can be frozen,
      but the kthread will remain running, the cgroup will be shown
      as non-frozen, and the notification will not be delivered.
      * PTRACE_ATTACH is not working because non-fatal signal delivery
      is blocked in frozen state.
      There are some interface differences between cgroup v1 and cgroup v2
      freezer too, which are required to conform the cgroup v2 interface
      design principles:
      1) There is no separate controller, which has to be turned on:
      the functionality is always available and is represented by
      cgroup.freeze and cgroup.events cgroup control files.
      2) The desired state is defined by the cgroup.freeze control file.
      Any hierarchical configuration is allowed.
      3) The interface is asynchronous. The actual state is available
      using cgroup.events control file ("frozen" field). There are no
      dedicated transitional states.
      4) It's allowed to make any changes with the cgroup hierarchy
      (create new cgroups, remove old cgroups, move tasks between cgroups)
      no matter if some cgroups are frozen.
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      No-objection-from-me-by: default avatarOleg Nesterov <oleg@redhat.com>
      Cc: kernel-team@fb.com
    • Roman Gushchin's avatar
      cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock · 4dcabece
      Roman Gushchin authored
      The number of descendant cgroups and the number of dying
      descendant cgroups are currently synchronized using the cgroup_mutex.
      The number of descendant cgroups will be required by the cgroup v2
      freezer, which will use it to determine if a cgroup is frozen
      (depending on total number of descendants and number of frozen
      descendants). It's not always acceptable to grab the cgroup_mutex,
      especially from quite hot paths (e.g. exit()).
      To avoid this, let's additionally synchronize these counters using
      the css_set_lock.
      So, it's safe to read these counters with either cgroup_mutex or
      css_set_lock locked, and for changing both locks should be acquired.
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Cc: kernel-team@fb.com
    • Roman Gushchin's avatar
      cgroup: implement __cgroup_task_count() helper · aade7f9e
      Roman Gushchin authored
      The helper is identical to the existing cgroup_task_count()
      except it doesn't take the css_set_lock by itself, assuming
      that the caller does.
      Also, move cgroup_task_count() implementation into
      kernel/cgroup/cgroup.c, as there is nothing specific to cgroup v1.
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Cc: kernel-team@fb.com
    • Roman Gushchin's avatar
      cgroup: rename freezer.c into legacy_freezer.c · 50943f3e
      Roman Gushchin authored
      Freezer.c will contain an implementation of cgroup v2 freezer,
      so let's rename the v1 freezer to avoid naming conflicts.
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Cc: kernel-team@fb.com
  2. 04 Apr, 2019 2 commits
  3. 03 Apr, 2019 5 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid · 8ed86627
      Linus Torvalds authored
      Pull HID fixes from Jiri Kosina:
       - build dependency fix for hid-asus from Arnd Bergmann
       - addition of omitted mapping of _ASSISTANT key from Dmitry Torokhov
       - race condition fix in hid-debug inftastructure from He, Bo
       - fixed support for devices with big maximum report size from Kai-Heng
       - deadlock fix in hid-steam from Rodrigo Rivas Costa
       - quite a few device-specific quirks
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
        HID: input: add mapping for Assistant key
        HID: i2c-hid: Disable runtime PM on Synaptics touchpad
        HID: quirks: Fix keyboard + touchpad on Lenovo Miix 630
        HID: logitech: Handle 0 scroll events for the m560
        HID: debug: fix race condition with between rdesc_show() and device removal
        HID: logitech: check the return value of create_singlethread_workqueue
        HID: Increase maximum report size allowed by hid_field_extract()
        HID: steam: fix deadlock with input devices.
        HID: uclogic: remove redudant duplicated null check on ver_ptr
        HID: quirks: Drop misused kernel-doc annotation
        HID: hid-asus: select CONFIG_POWER_SUPPLY
        HID: quirks: use correct format chars in dbg_hid
    • Dmitry Torokhov's avatar
      HID: input: add mapping for Assistant key · ce856634
      Dmitry Torokhov authored
      According to HUTRR89 usage 0x1cb from the consumer page was assigned to
      allow launching desktop-aware assistant application, so let's add the
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
    • Linus Torvalds's avatar
      Merge tag 'pidfd-fixes-v5.1-rc3' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux · a816fd6b
      Linus Torvalds authored
      Pull pidfd fix from Christian Brauner:
       "This should be an uncontroversial fix for pidfd_send_signal() by Jann
        to better align it's behavior with other signal sending functions:
        In one of the early versions of the patchset it was suggested to not
        unconditionally error out when a signal with SI_USER is sent to a
        non-current task (cf. [1]).
        Instead, pidfd_send_signal() currently silently changes this to a
        regular kill signal. While this is technically fine, the semantics are
        weird since the kernel just silently converts a user's request behind
        their back and also no other signal sending function allows to do
        this. It gets more hairy when we introduce sending signals to a
        specific thread soon.
        So let's align pidfd_send_signal() with all the other signal sending
        functions and error out when SI_USER signals are sent to a non-current
      * tag 'pidfd-fixes-v5.1-rc3' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
        signal: don't silently convert SI_USER signals to non-current pidfd
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-v5.1-rc4' of... · 4a3164e3
      Linus Torvalds authored
      Merge tag 'hwmon-for-v5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      Pull hwmon fixes from Guenter Roeck:
       "Couple of minor hwmon fixes"
      * tag 'hwmon-for-v5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        dt-bindings: hwmon: (adc128d818) Specify ti,mode property size
        hwmon: (ntc_thermistor) Fix temperature type reporting
        hwmon: (occ) Fix power sensor indexing
        hwmon: (w83773g) Select REGMAP_I2C to fix build error
    • Nicolas Pitre's avatar
      Update Nicolas Pitre's email address · 9f3bd8fe
      Nicolas Pitre authored
      The @linaro version won't be valid much longer.
      Signed-off-by: default avatarNicolas Pitre <nico@fluxnic.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  4. 01 Apr, 2019 11 commits
  5. 31 Mar, 2019 9 commits
    • Linus Torvalds's avatar
      Linux 5.1-rc3 · 79a3aaa7
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 63fc9c23
      Linus Torvalds authored
      Pull KVM fixes from Paolo Bonzini:
       "A collection of x86 and ARM bugfixes, and some improvements to
        On top of this, a cleanup of kvm_para.h headers, which were exported
        by some architectures even though they not support KVM at all. This is
        responsible for all the Kbuild changes in the diffstat"
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
        Documentation: kvm: clarify KVM_SET_USER_MEMORY_REGION
        KVM: doc: Document the life cycle of a VM and its resources
        KVM: selftests: complete IO before migrating guest state
        KVM: selftests: disable stack protector for all KVM tests
        KVM: selftests: explicitly disable PIE for tests
        KVM: selftests: assert on exit reason in CR4/cpuid sync test
        KVM: x86: update %rip after emulating IO
        x86/kvm/hyper-v: avoid spurious pending stimer on vCPU init
        kvm/x86: Move MSR_IA32_ARCH_CAPABILITIES to array emulated_msrs
        KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts
        kvm: don't redefine flags as something else
        kvm: mmu: Used range based flushing in slot_handle_level_range
        KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
        KVM: x86: remove check on nr_mmu_pages in kvm_arch_commit_memory_region()
        kvm: nVMX: Add a vmentry check for HOST_SYSENTER_ESP and HOST_SYSENTER_EIP fields
        KVM: SVM: Workaround errata#1096 (insn_len maybe zero on SMAP violation)
        KVM: Reject device ioctls from processes other than the VM's creator
        KVM: doc: Fix incorrect word ordering regarding supported use of APIs
        KVM: x86: fix handling of role.cr4_pae and rename it to 'gpte_size'
        KVM: nVMX: Do not inherit quadrant and invalid for the root shadow EPT
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 915ee0da
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A pile of x86 updates:
         - Prevent exceeding he valid physical address space in the /dev/mem
           limit checks.
         - Move all header content inside the header guard to prevent compile
         - Fix the bogus __percpu annotation in this_cpu_has() which makes
           sparse very noisy.
         - Disable switch jump tables completely when retpolines are enabled.
         - Prevent leaking the trampoline address"
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/realmode: Make set_real_mode_mem() static inline
        x86/cpufeature: Fix __percpu annotation in this_cpu_has()
        x86/mm: Don't exceed the valid physical address space
        x86/retpolines: Disable switch jump tables when retpolines are enabled
        x86/realmode: Don't leak the trampoline kernel address
        x86/boot: Fix incorrect ifdeffery scope
        x86/resctrl: Remove unused variable
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 590627f7
      Linus Torvalds authored
      Pull perf tooling fixes from Thomas Gleixner:
       "Core libraries:
         - Fix max perf_event_attr.precise_ip detection.
         - Fix parser error for uncore event alias
         - Fixup ordering of kernel maps after obtaining the main kernel map
        Intel PT:
         - Fix TSC slip where A TSC packet can slip past MTC packets so that
           the timestamp appears to go backwards.
         - Fixes for exported-sql-viewer GUI conversion to python3.
        ARM coresight:
         - Fix the build by adding a missing case value for enumeration value
           introduced in newer library, that now is the required one.
        tool headers:
         - Syncronize kernel headers with the kernel, getting new io_uring and
           pidfd_send_signal syscalls so that 'perf trace' can handle them"
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf pmu: Fix parser error for uncore event alias
        perf scripts python: exported-sql-viewer.py: Fix python3 support
        perf scripts python: exported-sql-viewer.py: Fix never-ending loop
        perf machine: Update kernel map address and re-order properly
        tools headers uapi: Sync powerpc's asm/kvm.h copy with the kernel sources
        tools headers: Update x86's syscall_64.tbl and uapi/asm-generic/unistd
        tools headers uapi: Update drm/i915_drm.h
        tools arch x86: Sync asm/cpufeatures.h with the kernel sources
        tools headers uapi: Sync linux/fcntl.h to get the F_SEAL_FUTURE_WRITE addition
        tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h
        perf evsel: Fix max perf_event_attr.precise_ip detection
        perf intel-pt: Fix TSC slip
        perf cs-etm: Add missing case value
    • Linus Torvalds's avatar
      Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c29d8541
      Linus Torvalds authored
      Pull CPU hotplug fixes from Thomas Gleixner:
       "Two SMT/hotplug related fixes:
         - Prevent crash when HOTPLUG_CPU is disabled and the CPU bringup
           aborts. This is triggered with the 'nosmt' command line option, but
           can happen by any abort condition. As the real unplug code is not
           compiled in, prevent the fail by keeping the CPU in zombie state.
         - Enforce HOTPLUG_CPU for SMP on x86 to avoid the above situation
           completely. With 'nosmt' being a popular option it's required to
           unplug the half brought up sibling CPUs (due to the MCE wreckage)
      * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/smp: Enforce CONFIG_HOTPLUG_CPU when SMP=y
        cpu/hotplug: Prevent crash when CPU bringup fails on CONFIG_HOTPLUG_CPU=n
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 573efdc5
      Linus Torvalds authored
      Pull locking fixlet from Thomas Gleixner:
       "Trivial update to the maintainers file"
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        MAINTAINERS: Remove deleted file from futex file pattern
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f78b5be2
      Linus Torvalds authored
      Pull core fixes from Thomas Gleixner:
       "A small set of core updates:
         - Make the watchdog respect the selected CPU mask again. That was
           broken by the rework of the watchdog thread management and caused
           inconsistent state and NMI watchdog being unstoppable.
         - Ensure that the objtool build can find the libelf location.
         - Remove dead kcore stub code"
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        watchdog: Respect watchdog cpumask on CPU hotplug
        objtool: Query pkg-config for libelf location
        proc/kcore: Remove unused kclist_add_remap()
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 6536c5f2
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Three non-regression fixes.
         - Our optimised memcmp could read past the end of one of the buffers
           and potentially trigger a page fault leading to an oops.
         - Some of our code to read energy management data on PowerVM had an
           endian bug leading to bogus results.
         - When reporting a machine check exception we incorrectly reported
           TLB multihits as D-Cache multhits due to a missing entry in the
           array of causes.
        Thanks to: Chandan Rajendra, Gautham R. Shenoy, Mahesh Salgaonkar,
        Segher Boessenkool, Vaidyanathan Srinivasan"
      * tag 'powerpc-5.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/pseries/mce: Fix misleading print for TLB mutlihit
        powerpc/pseries/energy: Use OF accessor functions to read ibm,drc-indexes
        powerpc/64: Fix memcmp reading past the end of src/dest
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-5.1-rc3' of git://git.infradead.org/users/vkoul/slave-dma · c877b3df
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
       - Revert "dmaengine: stm32-mdma: Add a check on read_u32_array" as that
         caused regression
       - Fix MAINTAINER file uniphier-mdmac.c file path
      * tag 'dmaengine-fix-5.1-rc3' of git://git.infradead.org/users/vkoul/slave-dma:
        MAINTAINERS: Fix uniphier-mdmac.c file path
        dmaengine: stm32-mdma: Revert "dmaengine: stm32-mdma: Add a check on read_u32_array"
  6. 30 Mar, 2019 9 commits
    • Linus Torvalds's avatar
      Merge tag 'led-fixes-for-5.1-rc3' of... · b5c8314f
      Linus Torvalds authored
      Merge tag 'led-fixes-for-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
      Pull LED fixes from Jacek Anaszewski:
       - fix refcnt leak on interface rename
       - use memcpy in device_name_store() to avoid including garbage from a
         previous, longer value in the device_name
       - fix a potential NULL pointer dereference in case of_match_device()
         cannot find a match
      * tag 'led-fixes-for-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
        leds: trigger: netdev: use memcpy in device_name_store
        leds: pca9532: fix a potential NULL pointer dereference
        leds: trigger: netdev: fix refcnt leak on interface rename
    • Linus Torvalds's avatar
      Merge tag 'gpio-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 3af9a525
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "As you can see [in the git history] I was away on leave and Bartosz
        kindly stepped in and collected a slew of fixes, I pulled them into my
        tree in two sets and merged some two more fixes (fixing my own caused
        bugs) on top.
         - Revert the extended use of gpio_set_config() and think about how we
           can do this properly.
         - Fix up the SPI CS GPIO handling so it now works properly on the SPI
           bus children, as intended.
         - Error paths and driver fixes"
      * tag 'gpio-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: mockup: use simple_read_from_buffer() in debugfs read callback
        gpio: of: Fix of_gpiochip_add() error path
        gpio: of: Check for "spi-cs-high" in child instead of parent node
        gpio: of: Check propname before applying "cs-gpios" quirks
        gpio: mockup: fix debugfs read
        Revert "gpio: use new gpio_set_config() helper in more places"
        gpio: aspeed: fix a potential NULL pointer dereference
        gpio: amd-fch: Fix bogus SPDX identifier
        gpio: adnp: Fix testing wrong value in adnp_gpio_direction_input
        gpio: exar: add a check for the return value of ida_simple_get fails
    • Rasmus Villemoes's avatar
      leds: trigger: netdev: use memcpy in device_name_store · 90934643
      Rasmus Villemoes authored
      If userspace doesn't end the input with a newline (which can easily
      happen if the write happens from a C program that does write(fd,
      iface, strlen(iface))), we may end up including garbage from a
      previous, longer value in the device_name. For example
      # cat device_name
      # printf 'eth12' > device_name
      # cat device_name
      # printf 'eth3' > device_name
      # cat device_name
      I highly doubt anybody is relying on this behaviour, so switch to
      simply copying the bytes (we've already checked that size is <
      IFNAMSIZ) and unconditionally zero-terminate it; of course, we also
      still have to strip a trailing newline.
      This is also preparation for future patches.
      Fixes: 06f502f5
       ("leds: trigger: Introduce a NETDEV trigger")
      Signed-off-by: default avatarRasmus Villemoes <linux@rasmusvillemoes.dk>
      Acked-by: default avatarPavel Machek <pavel@ucw.cz>
      Signed-off-by: default avatarJacek Anaszewski <jacek.anaszewski@gmail.com>
    • Kangjie Lu's avatar
      leds: pca9532: fix a potential NULL pointer dereference · 0aab8e4d
      Kangjie Lu authored
      In case of_match_device cannot find a match, return -EINVAL to avoid
      NULL pointer dereference.
      Fixes: fa4191a6
       ("leds: pca9532: Add device tree support")
      Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
      Signed-off-by: default avatarJacek Anaszewski <jacek.anaszewski@gmail.com>
    • Linus Torvalds's avatar
      Merge tag 'staging-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 32faca66
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are some small staging driver fixes for 5.1-rc3, and one driver
        The biggest thing here is the removal of the mt7621-eth driver as a
        "real" network driver was merged in 5.1-rc1 for this hardware, so this
        old driver can now be removed.
        Other than that, there are just a number of small fixes, all resolving
        reported issues and some potential corner cases for error handling
        All of these have been in linux-next with no reported issues"
      * tag 'staging-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: vt6655: Remove vif check from vnt_interrupt
        staging: erofs: keep corrupted fs from crashing kernel in erofs_readdir()
        staging: octeon-ethernet: fix incorrect PHY mode
        staging: vc04_services: Fix an error code in vchiq_probe()
        staging: erofs: fix error handling when failed to read compresssed data
        staging: vt6655: Fix interrupt race condition on device start up.
        staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc
        staging: rtl8712: uninitialized memory in read_bbreg_hdl()
        staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference
        staging: rtl8188eu: Fix potential NULL pointer dereference of kcalloc
        staging, mt7621-pci: fix build without pci support
        staging: speakup_soft: Fix alternate speech with other synths
        staging: axis-fifo: add CONFIG_OF dependency
        staging: olpc_dcon_xo_1: add missing 'const' qualifier
        staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest
        staging: erofs: fix to handle error path of erofs_vmap()
        staging: mt7621-dts: update ethernet settings.
        staging: remove mt7621-eth
    • Linus Torvalds's avatar
      Merge tag 'tty-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 52afe190
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some small tty and serial driver fixes for 5.1-rc3.
        Nothing major here, just a number of potential problems fixes for
        error handling paths, as well as some other minor bugfixes for
        reported issues with 5.1-rc1.
        All of these have been in linux-next with no reported issues"
      * tag 'tty-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: fix NULL pointer issue when tty_port ops is not set
        Disable kgdboc failed by echo space to /sys/module/kgdboc/parameters/kgdboc
        dt-bindings: serial: Add compatible for Mediatek MT8183
        tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped
        tty/serial: atmel: Add is_half_duplex helper
        serial: sh-sci: Fix setting SCSCR_TIE while transferring data
        serial: ar933x_uart: Fix build failure with disabled console
        tty: serial: qcom_geni_serial: Initialize baud in qcom_geni_console_setup
        sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init()
        tty: mxs-auart: fix a potential NULL pointer dereference
        tty: atmel_serial: fix a potential NULL pointer dereference
        serial: max310x: Fix to avoid potential NULL pointer dereference
        serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference
    • Linus Torvalds's avatar
      Merge tag 'usb-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 8d02a9a8
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are some small USB fixes for 5.1-rc3.
        Nothing major at all here, just a small collection of fixes for
        reported issues, and potential problems with error handling paths.
        Also a few new device ids, as normal.
        All of these have been in linux-next with no reported issues"
      * tag 'usb-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
        USB: serial: option: add Olicard 600
        USB: serial: cp210x: add new device id
        usb: u132-hcd: fix resource leak
        usb: cdc-acm: fix race during wakeup blocking TX traffic
        usb: mtu3: fix EXTCON dependency
        usb: usb251xb: fix to avoid potential NULL pointer dereference
        usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails
        phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs
        xhci: Don't let USB3 ports stuck in polling state prevent suspend
        usb: xhci: dbc: Don't free all memory with spinlock held
        xhci: Fix port resume done detection for SS ports with LPM enabled
        USB: serial: mos7720: fix mos_parport refcount imbalance on error path
        USB: gadget: f_hid: fix deadlock in f_hidg_write()
        usb: gadget: net2272: Fix net2272_dequeue()
        usb: gadget: net2280: Fix net2280_dequeue()
        usb: gadget: net2280: Fix overrun of OUT messages
        usb: dwc3: pci: add support for Comet Lake PCH ID
        usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0
        usb: common: Consider only available nodes for dr_mode
        usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 782492a7
      Linus Torvalds authored
      Pull ACPI fix from Rafael Wysocki:
       "This corrects a previous attempt to make Linux use its own set of ACPI
        debug flags different from the upstream ACPICA's default (Erik
      * tag 'acpi-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI: use different default debug value than ACPICA
    • Linus Torvalds's avatar
      Merge tag 'pm-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 8e377a1c
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix CPU base frequency reporting in the intel_pstate driver and
        a use-after-free in the scpi-cpufreq driver.
         - Fix the ACPI CPPC library to actually follow the specification when
           decoding the guaranteed performance register information and make
           the intel_pstate driver to fall back to the nominal frequency when
           reporting the base frequency if the guaranteed performance register
           information is not there (Srinivas Pandruvada).
         - Fix use-after-free in the exit callback of the scpi-cpufreq left
           after an update during the 5.0 development cycle (Vincent Stehlé)"
      * tag 'pm-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: scpi: Fix use after free
        cpufreq: intel_pstate: Also use CPPC nominal_perf for base_frequency
        ACPI / CPPC: Fix guaranteed performance handling