Merge 4.4.180 into kernel.lnx.4.4.r35-rel

Changes in 4.4.180: (267 commits)
        kbuild: simplify ld-option implementation
        KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number
        cifs: do not attempt cifs operation on smb2+ rename error
        MIPS: scall64-o32: Fix indirect syscall number load
        trace: Fix preempt_enable_no_resched() abuse
        sched/numa: Fix a possible divide-by-zero
        ceph: ensure d_name stability in ceph_dentry_hash()
        ceph: fix ci->i_head_snapc leak
        nfsd: Don't release the callback slot unless it was actually held
        sunrpc: don't mark uninitialised items as VALID.
        USB: Add new USB LPM helpers
        USB: Consolidate LPM checks to avoid enabling LPM twice
        powerpc/xmon: Add RFI flush related fields to paca dump
        powerpc/64s: Improve RFI L1-D cache flush fallback
        powerpc/pseries: Support firmware disable of RFI flush
        powerpc/powernv: Support firmware disable of RFI flush
        powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code
        powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again
        powerpc/rfi-flush: Always enable fallback flush on pseries
        powerpc/rfi-flush: Differentiate enabled and patched flush types
        powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags
        powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
        powerpc: Add security feature flags for Spectre/Meltdown
        powerpc/pseries: Set or clear security feature flags
        powerpc/powernv: Set or clear security feature flags
        powerpc/64s: Move cpu_show_meltdown()
        powerpc/64s: Enhance the information in cpu_show_meltdown()
        powerpc/powernv: Use the security flags in pnv_setup_rfi_flush()
        powerpc/pseries: Use the security flags in pseries_setup_rfi_flush()
        powerpc/64s: Wire up cpu_show_spectre_v1()
        powerpc/64s: Wire up cpu_show_spectre_v2()
        powerpc/pseries: Fix clearing of security feature flags
        powerpc: Move default security feature flags
        powerpc/pseries: Restore default security feature flags on setup
        powerpc/64s: Fix section mismatch warnings from setup_rfi_flush()
        powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit
        powerpc/64s: Add barrier_nospec
        powerpc/64s: Add support for ori barrier_nospec patching
        powerpc/64s: Patch barrier_nospec in modules
        powerpc/64s: Enable barrier_nospec based on firmware settings
        powerpc/64: Use barrier_nospec in syscall entry
        powerpc: Use barrier_nospec in copy_from_user()
        powerpc/64s: Enhance the information in cpu_show_spectre_v1()
        powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2
        powerpc/64: Disable the speculation barrier from the command line
        powerpc/64: Make stf barrier PPC_BOOK3S_64 specific.
        powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
        powerpc/64: Call setup_barrier_nospec() from setup_arch()
        powerpc/64: Make meltdown reporting Book3S 64 specific
        powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E
        powerpc/asm: Add a patch_site macro & helpers for patching instructions
        powerpc/64s: Add new security feature flags for count cache flush
        powerpc/64s: Add support for software count cache flush
        powerpc/pseries: Query hypervisor for count cache flush settings
        powerpc/powernv: Query firmware for count cache flush settings
        powerpc: Avoid code patching freed init sections
        powerpc/fsl: Add infrastructure to fixup branch predictor flush
        powerpc/fsl: Add macro to flush the branch predictor
        powerpc/fsl: Fix spectre_v2 mitigations reporting
        powerpc/fsl: Add nospectre_v2 command line argument
        powerpc/fsl: Flush the branch predictor at each kernel entry (64bit)
        powerpc/fsl: Update Spectre v2 reporting
        powerpc/security: Fix spectre_v2 reporting
        powerpc/fsl: Fix the flush of branch predictor.
        tipc: handle the err returned from cmd header function
        slip: make slhc_free() silently accept an error pointer
        intel_th: gth: Fix an off-by-one in output unassigning
        fs/proc/proc_sysctl.c: Fix a NULL pointer dereference
        NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family.
        netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON
        tipc: check bearer name with right length in tipc_nl_compat_bearer_enable
        tipc: check link name with right length in tipc_nl_compat_link_set
        bpf: reject wrong sized filters earlier
        Revert "block/loop: Use global lock for ioctl() operation."
        ipv4: add sanity checks in ipv4_link_failure()
        team: fix possible recursive locking when add slaves
        net: stmmac: move stmmac_check_ether_addr() to driver probe
        ipv4: set the tcp_min_rtt_wlen range from 0 to one day
        powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
        powerpc/fsl: Flush branch predictor when entering KVM
        powerpc/fsl: Emulate SPRN_BUCSR register
        powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit)
        powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms
        powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
        powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg
        Documentation: Add nospectre_v1 parameter
        usbnet: ipheth: prevent TX queue timeouts when device not ready
        usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set
        qlcnic: Avoid potential NULL pointer dereference
        netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING
        sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init()
        usb: gadget: net2280: Fix overrun of OUT messages
        usb: gadget: net2280: Fix net2280_dequeue()
        usb: gadget: net2272: Fix net2272_dequeue()
        ARM: dts: pfla02: increase phy reset duration
        net: ks8851: Dequeue RX packets explicitly
        net: ks8851: Reassert reset pin if chip ID check fails
        net: ks8851: Delay requesting IRQ until opened
        net: ks8851: Set initial carrier state to down
        net: xilinx: fix possible object reference leak
        net: ibm: fix possible object reference leak
        net: ethernet: ti: fix possible object reference leak
        scsi: qla4xxx: fix a potential NULL pointer dereference
        usb: u132-hcd: fix resource leak
        ceph: fix use-after-free on symlink traversal
        scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN
        libata: fix using DMA buffers on stack
        kconfig/[mn]conf: handle backspace (^H) key
        vfio/type1: Limit DMA mappings per container
        ALSA: line6: use dynamic buffers
        ipv4: ip_do_fragment: Preserve skb_iif during fragmentation
        ipv6/flowlabel: wait rcu grace period before put_pid()
        ipv6: invert flowlabel sharing check in process and user mode
        bnxt_en: Improve multicast address setup logic.
        packet: validate msg_namelen in send directly
        USB: yurex: Fix protection fault after device removal
        USB: w1 ds2490: Fix bug caused by improper use of altsetting array
        USB: core: Fix unterminated string returned by usb_string()
        USB: core: Fix bug caused by duplicate interface PM usage counter
        HID: debug: fix race condition with between rdesc_show() and device removal
        rtc: sh: Fix invalid alarm warning for non-enabled alarm
        igb: Fix WARN_ONCE on runtime suspend
        bonding: show full hw address in sysfs for slave entries
        jffs2: fix use-after-free on symlink traversal
        debugfs: fix use-after-free on symlink traversal
        rtc: da9063: set uie_unsupported when relevant
        vfio/pci: use correct format characters
        scsi: storvsc: Fix calculation of sub-channel count
        net: hns: Use NAPI_POLL_WEIGHT for hns driver
        net: hns: Fix WARNING when remove HNS driver with SMMU enabled
        hugetlbfs: fix memory leak for resv_map
        xsysace: Fix error handling in ace_setup
        ARM: orion: don't use using 64-bit DMA masks
        ARM: iop: don't use using 64-bit DMA masks
        usb: usbip: fix isoc packet num validation in get_pipe
        staging: iio: adt7316: allow adt751x to use internal vref for all dacs
        staging: iio: adt7316: fix the dac read calculation
        staging: iio: adt7316: fix the dac write calculation
        Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ
        selinux: never allow relabeling on context mounts
        x86/mce: Improve error message when kernel cannot recover, p2
        media: v4l2: i2c: ov7670: Fix PLL bypass register values
        scsi: libsas: fix a race condition when smp task timeout
        ASoC:soc-pcm:fix a codec fixup issue in TDM case
        ASoC: cs4270: Set auto-increment bit for register writes
        ASoC: tlv320aic32x4: Fix Common Pins
        perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS
        scsi: csiostor: fix missing data copy in csio_scsi_err_handler()
        iommu/amd: Set exclusion range correctly
        genirq: Prevent use-after-free and work list corruption
        usb: dwc3: Fix default lpm_nyet_threshold value
        scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines
        Bluetooth: hidp: fix buffer overflow
        Bluetooth: Align minimum encryption key size for LE and BR/EDR connections
        UAS: fix alignment of scatter/gather segments
        ipv6: fix a potential deadlock in do_ipv6_setsockopt()
        ASoC: Intel: avoid Oops if DMA setup fails
        timer/debug: Change /proc/timer_stats from 0644 to 0600
        netfilter: compat: initialize all fields in xt_init
        platform/x86: sony-laptop: Fix unintentional fall-through
        iio: adc: xilinx: fix potential use-after-free on remove
        HID: input: add mapping for Expose/Overview key
        HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys
        libnvdimm/btt: Fix a kmemdup failure check
        s390/dasd: Fix capacity calculation for large volumes
        s390/3270: fix lockdep false positive on view->lock
        KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing
        tools lib traceevent: Fix missing equality check for strcmp
        init: initialize jump labels before command line option parsing
        ipvs: do not schedule icmp errors from tunnels
        s390: ctcm: fix ctcm_new_device error return code
        selftests/net: correct the return value for run_netsocktests
        gpu: ipu-v3: dp: fix CSC handling
        cw1200: fix missing unlock on error in cw1200_hw_scan()
        x86/vdso: Pass --eh-frame-hdr to the linker
        Don't jump to compute_result state from check_result state
        locking/static_keys: Provide DECLARE and well as DEFINE macros
        x86/microcode/intel: Add a helper which gives the microcode revision
        x86: stop exporting msr-index.h to userland
        bitops: avoid integer overflow in GENMASK(_ULL)
        x86/microcode/intel: Check microcode revision before updating sibling threads
        x86/MCE: Save microcode revision in machine check records
        x86/cpufeatures: Hide AMD-specific speculation flags
        x86/speculation: Support Enhanced IBRS on future CPUs
        x86/speculation: Simplify the CPU bug detection logic
        x86/bugs: Add AMD's variant of SSB_NO
        x86/bugs: Add AMD's SPEC_CTRL MSR usage
        x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
        locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file
        x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
        x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
        x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
        x86/microcode: Update the new microcode revision unconditionally
        x86/cpu: Sanitize FAM6_ATOM naming
        KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled
        x86/mm: Use WRITE_ONCE() when setting PTEs
        x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
        x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
        x86/speculation: Propagate information about RSB filling mitigation to sysfs
        x86/speculation: Update the TIF_SSBD comment
        x86/speculation: Clean up spectre_v2_parse_cmdline()
        x86/speculation: Remove unnecessary ret variable in cpu_show_common()
        x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
        x86/speculation: Disable STIBP when enhanced IBRS is in use
        x86/speculation: Rename SSBD update functions
        x86/speculation: Reorganize speculation control MSRs update
        x86/Kconfig: Select SCHED_SMT if SMP enabled
        sched: Add sched_smt_active()
        x86/speculation: Rework SMT state change
        x86/speculation: Reorder the spec_v2 code
        x86/speculation: Mark string arrays const correctly
        x86/speculataion: Mark command line parser data __initdata
        x86/speculation: Unify conditional spectre v2 print functions
        x86/speculation: Add command line control for indirect branch speculation
        x86/speculation: Prepare for per task indirect branch speculation control
        x86/process: Consolidate and simplify switch_to_xtra() code
        x86/speculation: Avoid __switch_to_xtra() calls
        x86/speculation: Prepare for conditional IBPB in switch_mm()
        x86/speculation: Split out TIF update
        x86/speculation: Prepare arch_smt_update() for PRCTL mode
        x86/speculation: Prevent stale SPEC_CTRL msr content
        x86/speculation: Add prctl() control for indirect branch speculation
        x86/speculation: Enable prctl mode for spectre_v2_user
        x86/speculation: Add seccomp Spectre v2 user space protection mode
        x86/speculation: Provide IBPB always command line options
        kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
        x86/msr-index: Cleanup bit defines
        x86/speculation: Consolidate CPU whitelists
        x86/speculation/mds: Add basic bug infrastructure for MDS
        x86/speculation/mds: Add BUG_MSBDS_ONLY
        x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
        x86/speculation/mds: Add mds_clear_cpu_buffers()
        x86/speculation/mds: Clear CPU buffers on exit to user
        x86/speculation/mds: Conditionally clear CPU buffers on idle entry
        x86/speculation/mds: Add mitigation control for MDS
        x86/speculation/l1tf: Document l1tf in sysfs
        x86/speculation/mds: Add sysfs reporting for MDS
        x86/speculation/mds: Add mitigation mode VMWERV
        Documentation: Move L1TF to separate directory
        Documentation: Add MDS vulnerability documentation
        x86/cpu/bugs: Use __initconst for 'const' init data
        x86/speculation: Move arch_smt_update() call to after mitigation decisions
        x86/speculation/mds: Add SMT warning message
        x86/speculation/mds: Fix comment
        x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
        cpu/speculation: Add 'mitigations=' cmdline option
        x86/speculation: Support 'mitigations=' cmdline option
        x86/speculation/mds: Add 'mitigations=' support for MDS
        x86/mds: Add MDSUM variant to the MDS documentation
        Documentation: Correct the possible MDS sysfs values
        x86/speculation/mds: Fix documentation typo
        x86/bugs: Change L1TF mitigation string to match upstream
        USB: serial: use variable for status
        USB: serial: fix unthrottle races
        powerpc/64s: Include cpu header
        bridge: Fix error path for kobject_init_and_add()
        net: ucc_geth - fix Oops when changing number of buffers in the ring
        packet: Fix error path in packet_init
        vlan: disable SIOCSHWTSTAMP in container
        vrf: sit mtu should not be updated when vrf netdev is the link
        ipv4: Fix raw socket lookup for local traffic
        bonding: fix arp_validate toggling in active-backup mode
        drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl
        drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
        powerpc/booke64: set RI in default MSR
        powerpc/lib: fix book3s/32 boot failure due to code patching
        Linux 4.4.180

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Conflicts:
	arch/powerpc/include/asm/uaccess.h
	include/linux/cpu.h
	kernel/cpu.c
	kernel/irq/manage.c
	kernel/time/timer_stats.c
	net/ipv4/sysctl_net_ipv4.c