1. 22 Aug, 2018 9 commits
    • Masahiro Yamada's avatar
      kconfig: report recursive dependency involving 'imply' · 5e8c5299
      Masahiro Yamada authored
      Currently, Kconfig does not complain about the recursive dependency
      where 'imply' keywords are involved.
      
      [Test Code]
      
        config A
                bool "a"
      
        config B
                bool "b"
                imply A
                depends on A
      
      In the code above, Kconfig cannot calculate the symbol values correctly
      due to the circular dependency.  For example, allyesconfig followed by
      syncconfig results in an odd behavior because CONFIG_B becomes visible
      in syncconfig.
      
        $ make allyesconfig
        scripts/kconfig/conf  --allyesconfig Kconfig
        #
        # configuration written to .config
        #
        $ cat .config
        #
        # Automatically generated file; DO NOT EDIT.
        # Main menu
        #
        CONFIG_A=y
        $ make syncconfig
        scripts/kconfig/conf  --syncconfig Kconfig
        *
        * Restart config...
        *
        *
        * Main menu
        *
        a (A) [Y/n/?] y
          b (B) [N/y/?] (NEW)
      
      To detect this correctly, sym_check_expr_deps() should recurse to
      not only sym->rev_dep.expr but also sym->implied.expr .
      
      At this moment, sym_check_print_recursive() cannot distinguish
      'select' and 'imply' since it does not know the precise context
      where the recursive dependency has been hit.  This will be solved
      by the next commit.
      
      In fact, even the document and the unit-test are confused.  Using
      'imply' does not solve recursive dependency since 'imply' addresses
      the unmet direct dependency, which 'select' could cause.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Tested-by: default avatarDirk Gouders <dirk@gouders.net>
      5e8c5299
    • Masahiro Yamada's avatar
      kconfig: error out when seeing recursive dependency · f1575595
      Masahiro Yamada authored
      Originally, recursive dependency was a fatal error for Kconfig
      because Kconfig cannot compute symbol values in such a situation.
      
      Commit d595cea6 ("kconfig: print more info when we see a recursive
      dependency") changed it to a warning, which I guess was not intentional.
      
      Get it back to an error again.
      
      Also, rename the unit test directory "warn_recursive_dep" to
      "err_recursive_dep" so that it matches to the behavior.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Tested-by: default avatarDirk Gouders <dirk@gouders.net>
      f1575595
    • Randy Dunlap's avatar
      kconfig: add build-only configurator targets · 4bf6a9af
      Randy Dunlap authored
      Add build-only targets for build_menuconfig, build_nconfig,
      build_xconfig, and build_gconfig.
      (targets must end in "config" to qualify in top-level Makefile)
      
      This allows these target to be built without execution (e.g., to
      look for errors or warnings) and/or to be built and checked by sparse.
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      4bf6a9af
    • Masahiro Yamada's avatar
      scripts/dtc: consolidate include path options in Makefile · e3fd9b53
      Masahiro Yamada authored
      It is tedious to specify extra compiler options for every file.
      HOST_EXTRACFLAGS is useful to add options to all files in a
      directory.
      
      -I$(src)/libfdt is needed for all the files in this directory
      to include libfdt_env.h etc. from scripts/dtc/libfdt/.
      
      On the other hand, -I$(src) is used to include check-in headers
      from generated C files.  Thus, I added it only to dtc-lexer.lex.o
      and dtc-parser.tab.o .
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Reviewed-by: default avatarRob Herring <robh@kernel.org>
      e3fd9b53
    • Linus Torvalds's avatar
      Merge tag 'fuse-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse · ad1d6973
      Linus Torvalds authored
      Pull fuse update from Miklos Szeredi:
       "Various bug fixes and cleanups"
      
      * tag 'fuse-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
        fuse: reduce allocation size for splice_write
        fuse: use kvmalloc to allocate array of pipe_buffer structs.
        fuse: convert last timespec use to timespec64
        fs: fuse: Adding new return type vm_fault_t
        fuse: simplify fuse_abort_conn()
        fuse: Add missed unlock_page() to fuse_readpages_fill()
        fuse: Don't access pipe->buffers without pipe_lock()
        fuse: fix initial parallel dirops
        fuse: Fix oops at process_init_reply()
        fuse: umount should wait for all requests
        fuse: fix unlocked access to processing queue
        fuse: fix double request_end()
      ad1d6973
    • Linus Torvalds's avatar
      Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · d9a185f8
      Linus Torvalds authored
      Pull overlayfs updates from Miklos Szeredi:
       "This contains two new features:
      
         - Stack file operations: this allows removal of several hacks from
           the VFS, proper interaction of read-only open files with copy-up,
           possibility to implement fs modifying ioctls properly, and others.
      
         - Metadata only copy-up: when file is on lower layer and only
           metadata is modified (except size) then only copy up the metadata
           and continue to use the data from the lower file"
      
      * tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (66 commits)
        ovl: Enable metadata only feature
        ovl: Do not do metacopy only for ioctl modifying file attr
        ovl: Do not do metadata only copy-up for truncate operation
        ovl: add helper to force data copy-up
        ovl: Check redirect on index as well
        ovl: Set redirect on upper inode when it is linked
        ovl: Set redirect on metacopy files upon rename
        ovl: Do not set dentry type ORIGIN for broken hardlinks
        ovl: Add an inode flag OVL_CONST_INO
        ovl: Treat metacopy dentries as type OVL_PATH_MERGE
        ovl: Check redirects for metacopy files
        ovl: Move some dir related ovl_lookup_single() code in else block
        ovl: Do not expose metacopy only dentry from d_real()
        ovl: Open file with data except for the case of fsync
        ovl: Add helper ovl_inode_realdata()
        ovl: Store lower data inode in ovl_inode
        ovl: Fix ovl_getattr() to get number of blocks from lower
        ovl: Add helper ovl_dentry_lowerdata() to get lower data dentry
        ovl: Copy up meta inode data from lowest data inode
        ovl: Modify ovl_lookup() and friends to lookup metacopy dentry
        ...
      d9a185f8
    • Linus Torvalds's avatar
      Merge tag 'xfs-4.19-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · c22fc16d
      Linus Torvalds authored
      Pull xfs fixes from Darrick Wong:
      
       - Fix an uninitialized variable
      
       - Don't use obviously garbage AG header counters to calculate
         transaction reservations
      
       - Trigger icount recalculation on bad icount when mounting
      
      * tag 'xfs-4.19-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        iomap: fix WARN_ON_ONCE on uninitialized variable
        xfs: sanity check ag header values in xrep_calc_ag_resblks
        xfs: recalculate summary counters at mount time if icount is bad
      c22fc16d
    • Linus Torvalds's avatar
      Merge tag 'for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply · c1fecabe
      Linus Torvalds authored
      Pull power supply and reset updates from Sebastian Reichel:
      
       - Improve support for TI bq20z75 in sbs-battery
      
       - Add Qualcomm PM8xxx reboot driver
      
       - Add cros-ec USBPD charger driver
      
       - Move ds2760 battery driver from w1 to power-supply and add DT support
      
       - Misc fixes
      
      * tag 'for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits)
        power: supply: bq27xxx: Update comments
        power: supply: max77693_charger: fix unintentional fall-through
        power: supply: mark expected switch fall-throughs
        power: supply: lego_ev3_battery: fix Vce offset
        power: supply: lego_ev3_battery: Don't ignore iio_read_channel_processed() return value
        power: supply: ds2760_battery: add devicetree probing
        power: supply: ds2760_battery: merge ds2760 supply driver with its w1 slave companion
        w1: core: match sub-nodes of bus masters in devicetree
        dt-bindings: w1: document bindings for ds2760 battery monitor
        dt-bindings: w1: document generic onewire bindings
        power: supply: adp5061: Fix a couple off by ones
        dt-bindings: power: reset: qcom: Add resin binding
        adp5061: New driver for ADP5061 I2C battery charger
        power: generic-adc-battery: check for duplicate properties copied from iio channels
        power: generic-adc-battery: fix out-of-bounds write when copying channel properties
        power: supply: axp288_charger: Fix initial constant_charge_current value
        power: supply: ab8500: stop using getnstimeofday64()
        power: gemini-poweroff: Avoid more spurious poweroffs
        power: vexpress: fix corruption in notifier registration
        power: remove possible deadlock when unregistering power_supply
        ...
      c1fecabe
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 99cc7ad4
      Linus Torvalds authored
      Pull i2c updates from Wolfram Sang:
      
       - the core has now a lockless variant of i2c_smbus_xfer. Some open
         coded versions of this got removed in drivers. This also enables
         proper SCCB support in regmap.
      
       - locking got a more precise naming. i2c_{un}lock_adapter() had to go,
         and we know use i2c_lock_bus() consistently with flags like
         I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity.
      
       - the gpio fault injector got a new delicate testcase
      
       - the bus recovery procedure got fixed to handle the new testcase
         correctly
      
       - a new quirk flag for controllers not able to handle zero length
         messages together with driver updates to use it
      
       - new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl
         family S900
      
       - and a good set of driver improvements and bugfixes
      
      * 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
        i2c: rcar: implement STOP and REP_START according to docs
        i2c: rcar: refactor private flags
        i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
        i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes
        dt-bindings: i2c: rcar: Add r8a774a1 support
        dt-bindings: i2c: sh_mobile: Add r8a774a1 support
        i2c: imx: Simplify stopped state tracking
        i2c: imx: Fix race condition in dma read
        i2c: pasemi: remove hardcoded bus numbers on smbus
        i2c: designware: Add SPDX license tag
        i2c: designware: Convert to use struct i2c_timings
        i2c: core: Parse SDA hold time from firmware
        i2c: designware-pcidrv: Mark expected switch fall-through
        i2c: amd8111: Mark expected switch fall-through
        i2c: sh_mobile: use core to detect 'no zero length read' quirk
        i2c: xlr: use core to detect 'no zero length' quirk
        i2c: rcar: use core to detect 'no zero length' quirk
        i2c: stu300: use core to detect 'no zero length' quirk
        i2c: pmcmsp: use core to detect 'no zero length' quirk
        i2c: mxs: use core to detect 'no zero length' quirk
        ...
      99cc7ad4
  2. 21 Aug, 2018 8 commits
    • Linus Torvalds's avatar
      Merge branch 'siginfo-linus' of... · 0214f46b
      Linus Torvalds authored
      Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
      
      Pull core signal handling updates from Eric Biederman:
       "It was observed that a periodic timer in combination with a
        sufficiently expensive fork could prevent fork from every completing.
        This contains the changes to remove the need for that restart.
      
        This set of changes is split into several parts:
      
         - The first part makes PIDTYPE_TGID a proper pid type instead
           something only for very special cases. The part starts using
           PIDTYPE_TGID enough so that in __send_signal where signals are
           actually delivered we know if the signal is being sent to a a group
           of processes or just a single process.
      
         - With that prep work out of the way the logic in fork is modified so
           that fork logically makes signals received while it is running
           appear to be received after the fork completes"
      
      * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (22 commits)
        signal: Don't send signals to tasks that don't exist
        signal: Don't restart fork when signals come in.
        fork: Have new threads join on-going signal group stops
        fork: Skip setting TIF_SIGPENDING in ptrace_init_task
        signal: Add calculate_sigpending()
        fork: Unconditionally exit if a fatal signal is pending
        fork: Move and describe why the code examines PIDNS_ADDING
        signal: Push pid type down into complete_signal.
        signal: Push pid type down into __send_signal
        signal: Push pid type down into send_signal
        signal: Pass pid type into do_send_sig_info
        signal: Pass pid type into send_sigio_to_task & send_sigurg_to_task
        signal: Pass pid type into group_send_sig_info
        signal: Pass pid and pid type into send_sigqueue
        posix-timers: Noralize good_sigevent
        signal: Use PIDTYPE_TGID to clearly store where file signals will be sent
        pid: Implement PIDTYPE_TGID
        pids: Move the pgrp and session pid pointers from task_struct to signal_struct
        kvm: Don't open code task_pid in kvm_vcpu_ioctl
        pids: Compute task_tgid using signal->leader_pid
        ...
      0214f46b
    • Linus Torvalds's avatar
      Merge tag 'chrome-platform-for-linus-4.19' of... · 40fafdcb
      Linus Torvalds authored
      Merge tag 'chrome-platform-for-linus-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform
      
      Pull chrome platform updates from Benson Leung.
      
      Everything but the SPDX identifier updates actually came in earlier
      through the MFD merge.
      
      * tag 'chrome-platform-for-linus-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
        platform/chrome: chromeos_tbmc - fix SPDX identifier
      40fafdcb
    • Linus Torvalds's avatar
      Merge tag 'microblaze-v4.19-rc1' of git://git.monstr.eu/linux-2.6-microblaze · 5e268309
      Linus Torvalds authored
      Pull arch/microblaze updates from Michal Simek:
      
       - use generic noncoherent direct mapping
      
       - use LDFLAGS instead of LD
      
       - pci error path fix
      
       - remove incorrect comments
      
      * tag 'microblaze-v4.19-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
        microblaze/PCI: Remove stale pcibios_align_resource() comment
        microblaze: delete wrong comment about machine_early_init
        microblaze: add endianness options to LDFLAGS instead of LD
        microblaze: remove consistent_sync and consistent_sync_page
        microblaze: use generic dma_noncoherent_ops
        microblaze: warn if of_iomap() failed
      5e268309
    • Lorenzo Pieralisi's avatar
      microblaze/PCI: Remove stale pcibios_align_resource() comment · c4347b05
      Lorenzo Pieralisi authored
      commit 01cf9d52 ("microblaze/PCI: Support generic Xilinx AXI PCIe Host
      Bridge IP driver")
      
      and
      
      commit ecf677c8 ("PCI: Add a generic weak pcibios_align_resource()")
      
      first patched then removed pcibios_align_resource() from the microblaze
      architecture code but failed to remove the comment that was added to
      it.
      
      Remove it since it has now become stale and it is quite confusing.
      Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
      Cc: Palmer Dabbelt <palmer@dabbelt.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Bharat Kumar Gogada <bharatku@xilinx.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
      c4347b05
    • Linus Torvalds's avatar
      Merge tag 'please-pull-noboot' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux · 778a3395
      Linus Torvalds authored
      Pull ia64 NO_BOOTMEM conversion from Tony Luck:
       "Mike Rapoport kindly fixed up ia64 to work with NO_BOOTMEM"
      
      * tag 'please-pull-noboot' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
        ia64: switch to NO_BOOTMEM
        ia64: use mem_data to detect nodes' minimal and maximal PFNs
        ia64: remove unused num_dma_physpages member from 'struct early_node_data'
        ia64: contig/paging_init: reduce code duplication
      778a3395
    • Linus Torvalds's avatar
      Merge tag 'linux-kselftest-4.19-rc1' of... · 6b2edf27
      Linus Torvalds authored
      Merge tag 'linux-kselftest-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
      
      Pull Kselftest update from Shuah Khan:
      
       - add cgroup core selftests
      
       - fix compile warnings in android ion test
      
       - fix to bugs in exclude and skip paths in vDSO test
      
       - remove obsolete config options
      
       - add missing .gitignore file
      
      * tag 'linux-kselftest-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
        selftests/ftrace: Fix kprobe string testcase to not probe notrace function
        selftests: mount: remove no longer needed config option
        selftests: cgroup: add gitignore file
        Add cgroup core selftests
        selftests: vDSO - fix to return KSFT_SKIP when test couldn't be run
        selftests: vDSO - fix to exclude x86 test on non-x86 platforms
        selftests/android: initialize heap_type to avoid compiling warning
      6b2edf27
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 7140ad38
      Linus Torvalds authored
      Pull tracing updates from Steven Rostedt:
      
       - Restructure of lockdep and latency tracers
      
         This is the biggest change. Joel Fernandes restructured the hooks
         from irqs and preemption disabling and enabling. He got rid of a lot
         of the preprocessor #ifdef mess that they caused.
      
         He turned both lockdep and the latency tracers to use trace events
         inserted in the preempt/irqs disabling paths. But unfortunately,
         these started to cause issues in corner cases. Thus, parts of the
         code was reverted back to where lockdep and the latency tracers just
         get called directly (without using the trace events). But because the
         original change cleaned up the code very nicely we kept that, as well
         as the trace events for preempt and irqs disabling, but they are
         limited to not being called in NMIs.
      
       - Have trace events use SRCU for "rcu idle" calls. This was required
         for the preempt/irqs off trace events. But it also had to not allow
         them to be called in NMI context. Waiting till Paul makes an NMI safe
         SRCU API.
      
       - New notrace SRCU API to allow trace events to use SRCU.
      
       - Addition of mcount-nop option support
      
       - SPDX headers replacing GPL templates.
      
       - Various other fixes and clean ups.
      
       - Some fixes are marked for stable, but were not fully tested before
         the merge window opened.
      
      * tag 'trace-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits)
        tracing: Fix SPDX format headers to use C++ style comments
        tracing: Add SPDX License format tags to tracing files
        tracing: Add SPDX License format to bpf_trace.c
        blktrace: Add SPDX License format header
        s390/ftrace: Add -mfentry and -mnop-mcount support
        tracing: Add -mcount-nop option support
        tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
        tracing: Handle CC_FLAGS_FTRACE more accurately
        Uprobe: Additional argument arch_uprobe to uprobe_write_opcode()
        Uprobes: Simplify uprobe_register() body
        tracepoints: Free early tracepoints after RCU is initialized
        uprobes: Use synchronize_rcu() not synchronize_sched()
        tracing: Fix synchronizing to event changes with tracepoint_synchronize_unregister()
        ftrace: Remove unused pointer ftrace_swapper_pid
        tracing: More reverting of "tracing: Centralize preemptirq tracepoints and unify their usage"
        tracing/irqsoff: Handle preempt_count for different configs
        tracing: Partial revert of "tracing: Centralize preemptirq tracepoints and unify their usage"
        tracing: irqsoff: Account for additional preempt_disable
        trace: Use rcu_dereference_raw for hooks from trace-event subsystem
        tracing/kprobes: Fix within_notrace_func() to check only notrace functions
        ...
      7140ad38
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-4.19-rc1' of git://github.com/ceph/ceph-client · 0a78ac4b
      Linus Torvalds authored
      Pull ceph updates from Ilya Dryomov:
       "The main things are support for cephx v2 authentication protocol and
        basic support for rbd images within namespaces (myself).
      
        Also included are y2038 conversion patches from Arnd, a pile of
        miscellaneous fixes from Chengguang and Zheng's feature bit
        infrastructure for the filesystem"
      
      * tag 'ceph-for-4.19-rc1' of git://github.com/ceph/ceph-client: (40 commits)
        ceph: don't drop message if it contains more data than expected
        ceph: support cephfs' own feature bits
        crush: fix using plain integer as NULL warning
        libceph: remove unnecessary non NULL check for request_key
        ceph: refactor error handling code in ceph_reserve_caps()
        ceph: refactor ceph_unreserve_caps()
        ceph: change to void return type for __do_request()
        ceph: compare fsc->max_file_size and inode->i_size for max file size limit
        ceph: add additional size check in ceph_setattr()
        ceph: add additional offset check in ceph_write_iter()
        ceph: add additional range check in ceph_fallocate()
        ceph: add new field max_file_size in ceph_fs_client
        libceph: weaken sizeof check in ceph_x_verify_authorizer_reply()
        libceph: check authorizer reply/challenge length before reading
        libceph: implement CEPHX_V2 calculation mode
        libceph: add authorizer challenge
        libceph: factor out encrypt_authorizer()
        libceph: factor out __ceph_x_decrypt()
        libceph: factor out __prepare_write_connect()
        libceph: store ceph_auth_handshake pointer in ceph_connection
        ...
      0a78ac4b
  3. 20 Aug, 2018 23 commits
    • Linus Torvalds's avatar
      Merge tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux · bfebeb16
      Linus Torvalds authored
      Pull RTC updates from Alexandre Belloni:
       "It is now possible to add custom sysfs attributes while avoiding a
        possible race condition. Unused code has been removed resulting in a
        nice reduction of the code base. And more drivers have been switched
        to SPDX by their maintainers.
      
       Summary:
      
        Subsystem:
         - new helpers to add custom sysfs attributes
         - struct rtc_task removal along with rtc_irq_[un]register()
         - rtc_irq_set_state and rtc_irq_set_freq are not exported anymore
      
        Drivers:
         - armada38x: reset after rtc power loss
         - ds1307: now supports m41t11
         - isl1208: now supports isl1219 and tamper detection
         - pcf2127: internal SRAM support"
      
      * tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
        rtc: ds1307: simplify hwmon config
        rtc: s5m: Add SPDX license identifier
        rtc: maxim: Add SPDX license identifiers
        rtc: isl1219: add device tree documentation
        rtc: isl1208: set ev-evienb bit from device tree
        rtc: isl1208: Add "evdet" interrupt source for isl1219
        rtc: isl1208: add support for isl1219 with tamper detection
        rtc: sysfs: facilitate attribute add to rtc device
        rtc: remove struct rtc_task
        char: rtc: remove task handling
        rtc: pcf85063: preserve control register value between stop and start
        rtc: sh: remove unused variable rtc_dev
        rtc: unexport rtc_irq_set_*
        rtc: simplify rtc_irq_set_state/rtc_irq_set_freq
        rtc: remove irq_task and irq_task_lock
        rtc: remove rtc_irq_register/rtc_irq_unregister
        rtc: sh: remove dead code
        rtc: sa1100: don't set PIE frequency
        rtc: ds1307: support m41t11 variant
        rtc: ds1307: fix data pointer to m41t0
        ...
      bfebeb16
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching · 3933ec73
      Linus Torvalds authored
      Pull livepatching updates from Jiri Kosina:
       "Code cleanups from Kamalesh Babulal"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
        livepatch: Validate module/old func name length
        livepatch: Remove reliable stacktrace check in klp_try_switch_task()
      3933ec73
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · 7a324b3f
      Linus Torvalds authored
      Pull HID updates from Jiri Kosina:
      
       - touch_max detection improvements and quirk handling fixes in wacom
         driver from Jason Gerecke and Ping Cheng
      
       - Palm rejection from Dmitry Torokhov and _dial support from Benjamin
         Tissoires for hid-multitouch driver
      
       - Low voltage support for i2c-hid driver from Stephen Boyd
      
       - Guitar-Hero support from Nicolas Adenis-Lamarre
      
       - other assorted small fixes and device ID additions
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (40 commits)
        HID: intel_ish-hid: tx_buf memory leak on probe/remove
        HID: intel-ish-hid: Prevent loading of driver on Mehlow
        HID: cougar: Add support for the Cougar 500k Gaming Keyboard
        HID: cougar: make compare_device_paths reusable
        HID: intel-ish-hid: remove redundant variable num_frags
        HID: multitouch: handle palm for touchscreens
        HID: multitouch: touchscreens also use confidence reports
        HID: multitouch: report MT_TOOL_PALM for non-confident touches
        HID: microsoft: support the Surface Dial
        HID: core: do not upper bound the collection stack
        HID: input: enable Totem on the Dell Canvas 27
        HID: multitouch: remove one copy of values
        HID: multitouch: ditch mt_report_id
        HID: multitouch: store a per application quirks value
        HID: multitouch: Store per collection multitouch data
        HID: multitouch: make sure the static list of class is not changed
        input: add MT_TOOL_DIAL
        HID: elan: Add support for touchpad on the Toshiba Click Mini L9W
        HID: elan: Add USB-id for HP x2 10-n000nd touchpad
        HID: elan: Add a flag for selecting if the touchpad has a LED
        ...
      7a324b3f
    • Linus Torvalds's avatar
      Merge tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight · 61c4fc1e
      Linus Torvalds authored
      Pull backlight updates from Lee Jones:
       "Core Framework:
         - Remove unused/obsolete code/comments
      
        New Functionality:
         - Allow less granular brightness specification for high-res PWMs; pwm_bl
         - Align brightness {inc,dec}rements with that perceived by the human-eye; pwm_bl
      
        Fix-ups:
         - Prepare for the introduction of -Wimplicit-fall-through; adp8860_bl
      
        Bug Fixes:
         - Fix uninitialised variable; pwm_bl"
      
      * tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
        backlight: pwm_bl: Fix uninitialized variable
        backlight: adp8860: Mark expected switch fall-through
        backlight: Remove obsolete comment for ->state
        dt-bindings: pwm-backlight: Move brightness-levels to optional
        backlight: pwm_bl: Compute brightness of LED linearly to human eye
        dt-bindings: pwm-backlight: Add a num-interpolation-steps property
        backlight: pwm_bl: Linear interpolation between brightness-levels
      61c4fc1e
    • Linus Torvalds's avatar
      Merge tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd · 532c2b92
      Linus Torvalds authored
      Pull MFD updates from Lee Jones:
       "New Drivers:
         - Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
         - Add ChromeOS EC CEC driver
         - Add ROHM BD71837 PMIC driver
      
        New Device Support:
         - Add support for Dialog Semi DA9063L PMIC variant to DA9063
         - Add support for Intel Ice Lake to Intel-PLSS-PCI
         - Add support for X-Powers AXP806 to AXP20x
      
        New Functionality:
         - Add support for USB Charging to the ChromeOS Embedded Controller
         - Add support for HDMI CEC to the ChromeOS Embedded Controller
         - Add support for HDMI CEC to Intel HDMI
         - Add support for accessory detection to Madera devices
         - Allow individual pins to be configured via DT' wlf,csnaddr-pd
         - Provide legacy platform specific EEPROM/Watchdog commands; rave-sp
      
        Fix-upsL
         - Trivial renaming/spelling fixes; cros_ec, da9063-*
         - Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
         - Transition to helper macros/functions; da9063-*
         - Constify; kempld-core
         - Improve error path/messages; wm8994-core
         - Disable IRQs locally instead of relying on USB subsystem; dln2
         - Remove unused code; rave-sp
         - New exports; sec-core
      
        Bug Fixes:
         - Fix possible false I2C transaction error; arizona-core
         - Fix declared memory area size; hi655x-pmic
         - Fix checksum type; rave-sp
         - Fix incorrect default serial port configuration: rave-sp
         - Fix incorrect coherent DMA mask for sub-devices; sm501"
      
      * tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
        mfd: madera: Add register definitions for accessory detect
        mfd: sm501: Set coherent_dma_mask when creating subdevices
        mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC
        mfd: bd71837: Core driver for ROHM BD71837 PMIC
        media: platform: cros-ec-cec: Fix dependency on MFD_CROS_EC
        mfd: sec-core: Export OF module alias table
        mfd: as3722: Disable auto-power-on when AC OK
        mfd: axp20x: Support AXP806 in I2C mode
        mfd: axp20x: Add self-working mode support for AXP806
        dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806
        mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
        mfd: wm8994: Allow to configure Speaker Mode Pullup from dts
        mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
        mfd: rave-sp: Add legacy watchdog ping command translation
        mfd: rave-sp: Add legacy EEPROM access command translation
        mfd: rave-sp: Initialize flow control and parity of the port
        mfd: rave-sp: Fix incorrectly specified checksum type
        mfd: rave-sp: Remove unused defines
        mfd: hi655x: Fix regmap area declared size for hi655x
        mfd: ti_am335x_tscadc: Fix struct clk memory leak
        ...
      532c2b92
    • Linus Torvalds's avatar
      Merge tag 'edac_fixes_for_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp · 8786583d
      Linus Torvalds authored
      Pull EDAC fix from Borislav Petkov:
       "An urgent fix for a NULL ptr deref on machines with LRDDR4 DIMMs, from
        Takashi Iwai"
      
      * tag 'edac_fixes_for_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
        EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]
      8786583d
    • Joe Perches's avatar
      Raise the minimum required gcc version to 4.6 · cafa0010
      Joe Perches authored
      Various architectures fail to build properly with older versions of the
      gcc compiler.
      
      An example from Guenter Roeck in thread [1]:
      >
      >   In file included from ./include/linux/mm.h:17:0,
      >                    from ./include/linux/pid_namespace.h:7,
      >                    from ./include/linux/ptrace.h:10,
      >                    from arch/openrisc/kernel/asm-offsets.c:32:
      >   ./include/linux/mm_types.h:497:16: error: flexible array member in otherwise empty struct
      >
      > This is just an example with gcc 4.5.1 for or32. I have seen the problem
      > with gcc 4.4 (for unicore32) as well.
      
      So update the minimum required version of gcc to 4.6.
      
      [1] https://lore.kernel.org/lkml/20180814170904.GA12768@roeck-us.net/
      
      Miscellanea:
      
       - Update Documentation/process/changes.rst
      
       - Remove and consolidate version test blocks in compiler-gcc.h for
         versions lower than 4.6
      Signed-off-by: default avatarJoe Perches <joe@perches.com>
      Reviewed-by: default avatarKees Cook <keescook@chromium.org>
      Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cafa0010
    • Tony Luck's avatar
      ia64: Fix kernel BUG at lib/ioremap.c:72! · cc26ebbe
      Tony Luck authored
      Commit 0bbf47ea ("ia64: use asm-generic/io.h") results in a BUG
      while booting ia64.  This is because asm-generic/io.h defines
      PCI_IOBASE, which results in the function acpi_pci_root_remap_iospace()
      doing a lot of unnecessary (and wrong) things.
      
      I'd suggested an #if !CONFIG_IA64 in the functon, but Arnd suggested
      keeping the fix inside the arch/ia64 tree.
      
      Fixes: 0bbf47ea ("ia64: use asm-generic/io.h")
      Suggested-by: default avatarArnd Bergman <arnd@arndb.de>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cc26ebbe
    • Jiri Kosina's avatar
      badf58a2
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/wiimote' into for-linus · 1429b47b
      Jiri Kosina authored
      Guitar-Hero devices support for hid-wiimote
      1429b47b
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/wacom' into for-linus · ffbeeaa4
      Jiri Kosina authored
      Wacom driver updates:
      
      - touch_max detection improvements
      - quirk handling cleanup
      - get rid of wacom custom usages
      ffbeeaa4
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/upstream' into for-linus · a91ddf23
      Jiri Kosina authored
      Assorted small driver/core fixes.
      a91ddf23
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/sony' into for-linus · 78a8ad79
      Jiri Kosina authored
      devm_* API conversion for hid-sony
      78a8ad79
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/multitouch-multiaxis' into for-linus · 16501e84
      Jiri Kosina authored
      Multitouch updates:
      
      - Dial support
      - Palm rejection for touchscreens
      - a few small assorted fixes
      16501e84
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/intel-ish' into for-linus · f5dd8071
      Jiri Kosina authored
      Device-specific fixes for hid-intel-ish
      f5dd8071
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/i2c-hid' into for-linus · 4435b577
      Jiri Kosina authored
      Low voltage support for i2c-hid
      4435b577
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/elan' into for-linus · 5a12d86c
      Jiri Kosina authored
      Resolution/pressure fixes and new device support for hid-elan
      5a12d86c
    • Jiri Kosina's avatar
      Merge branch 'for-4.19/cougar' into for-linus · 415d2b33
      Jiri Kosina authored
      New device support for hid-cougar
      415d2b33
    • Wolfram Sang's avatar
      i2c: rcar: implement STOP and REP_START according to docs · 19358d44
      Wolfram Sang authored
      When doing a REP_START after a read message, the driver used to trigger
      a STOP first which would then be overwritten by REP_START. This was the
      only stable method found when doing the last refactoring. However, this
      was not in accordance with the documentation.
      
      After research from our BSP team and myself, we now can implement a
      version which works and is according to the documentation. The new
      approach ensures the ICMCR register is only changed when really needed.
      
      Tested on a R-Car Gen2 (H2) and Gen3 with DMA (M3N).
      Signed-off-by: default avatarHiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
      Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
      Reviewed-by: default avatarUlrich Hecht <uli+renesas@fpond.eu>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      19358d44
    • Wolfram Sang's avatar
      i2c: rcar: refactor private flags · b07531ac
      Wolfram Sang authored
      Use BIT macro to avoid shift-31-problem, indent a little more and use
      GENMASK to make it easier to add new flags.
      Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
      Reviewed-by: default avatarUlrich Hecht <uli+renesas@fpond.eu>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      b07531ac
    • Hans de Goede's avatar
      i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value · 0a30446c
      Hans de Goede authored
      Currently acpi_gsb_i2c_read_bytes() directly returns i2c_transfer's return
      value. i2c_transfer returns a value < 0 on error and 2 (for 2 successfully
      executed transfers) on success. But the ACPI code expects 0 on success, so
      currently acpi_gsb_i2c_read_bytes()'s caller does:
      
              if (status > 0)
                      status = 0;
      
      This commit makes acpi_gsb_i2c_read_bytes() return a value which can be
      directly consumed by the ACPI code, mirroring acpi_gsb_i2c_write_bytes(),
      this commit also makes acpi_gsb_i2c_read_bytes() explitcly check that
      i2c_transfer returns 2, rather then accepting any value > 0.
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      0a30446c
    • Hans de Goede's avatar
      i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes · c463a158
      Hans de Goede authored
      acpi_gsb_i2c_write_bytes() returns i2c_transfer()'s return value, which
      is the number of transfers executed on success, so 1.
      
      The ACPI code expects us to store 0 in gsb->status for success, not 1.
      
      Specifically this breaks the following code in the Thinkpad 8 DSDT:
      
                  ECWR = I2CW = ECWR /* \_SB_.I2C1.BAT0.ECWR */
                  If ((ECST == Zero))
                  {
                      ECRD = I2CR /* \_SB_.I2C1.I2CR */
                  }
      
      Before this commit we set ECST to 1, causing the read to never happen
      breaking battery monitoring on the Thinkpad 8.
      
      This commit makes acpi_gsb_i2c_write_bytes() return 0 when i2c_transfer()
      returns 1, so the single write transfer completed successfully, and
      makes it return -EIO on for other (unexpected) return values >= 0.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      c463a158
    • Fabrizio Castro's avatar
      dt-bindings: i2c: rcar: Add r8a774a1 support · 0857f508
      Fabrizio Castro authored
      Document RZ/G2M (R8A774A1) I2C compatibility with the relevant driver
      dt-bindings.
      Signed-off-by: default avatarFabrizio Castro <fabrizio.castro@bp.renesas.com>
      Reviewed-by: default avatarBiju Das <biju.das@bp.renesas.com>
      Reviewed-by: default avatarRob Herring <robh@kernel.org>
      Reviewed-by: default avatarSimon Horman <horms+renesas@verge.net.au>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      0857f508