Merge 4.4.166 into kernel.lnx.4.4.r27-rel

Changes in 4.4.166: (85 commits)
        usb: core: Fix hub port connection events lost
        usb: xhci: fix timeout for transition from RExit to U0
        MAINTAINERS: Add Sasha as a stable branch maintainer
        iwlwifi: mvm: support sta_statistics() even on older firmware
        v9fs_dir_readdir: fix double-free on p9stat_read error
        bfs: add sanity check at bfs_fill_super()
        sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer
        gfs2: Don't leave s_fs_info pointing to freed memory in init_sbd
        llc: do not use sk_eat_skb()
        drm/ast: change resolution may cause screen blurred
        drm/ast: fixed cursor may disappear sometimes
        can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb()
        can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length
        can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds
        can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb
        usb: xhci: Prevent bus suspend if a port connect change or polling state is detected
        KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE
        cpufreq: imx6q: add return value check for voltage scale
        SUNRPC: Fix a bogus get/put in generic_key_to_expire()
        kdb: Use strscpy with destination buffer size
        powerpc/numa: Suppress "VPHN is not supported" messages
        tmpfs: make lseek(SEEK_DATA/SEK_HOLE) return ENXIO with a negative offset
        of: add helper to lookup compatible child node
        NFC: nfcmrvl_uart: fix OF child-node lookup
        net: bcmgenet: fix OF child-node lookup
        x86/entry: spell EBX register correctly in documentation
        x86/entry/64: Remove %ebx handling from error_entry/exit
        arm64: remove no-op -p linker flag
        ath10k: fix kernel panic due to race in accessing arvif list
        Input: xpad - remove spurious events of wireless xpad 360 controller
        Input: xpad - handle "present" and "gone" correctly
        Input: xpad - update Xbox One Force Feedback Support
        Input: xpad - workaround dead irq_out after suspend/ resume
        Input: xpad - use LED API when identifying wireless controllers
        Input: xpad - correct xbox one pad device name
        Input: xpad - remove unused function
        Input: xpad - add Mad Catz FightStick TE 2 VID/PID
        Input: xpad - prevent spurious input from wired Xbox 360 controllers
        Input: xpad - add more third-party controllers
        Input: xpad - xbox one elite controller support
        Input: xpad - fix rumble on Xbox One controllers with 2015 firmware
        Input: xpad - power off wireless 360 controllers on suspend
        Input: xpad - add product ID for Xbox One S pad
        Input: xpad - fix Xbox One rumble stopping after 2.5 secs
        Input: xpad - correctly sort vendor id's
        Input: xpad - move reporting xbox one home button to common function
        Input: xpad - simplify error condition in init_output
        Input: xpad - don't depend on endpoint order
        Input: xpad - fix stuck mode button on Xbox One S pad
        Input: xpad - restore LED state after device resume
        Input: xpad - support some quirky Xbox One pads
        Input: xpad - sort supported devices by USB ID
        Input: xpad - sync supported devices with xboxdrv
        Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth
        Input: xpad - sync supported devices with 360Controller
        Input: xpad - sync supported devices with XBCD
        Input: xpad - constify usb_device_id
        Input: xpad - fix PowerA init quirk for some gamepad models
        Input: xpad - validate USB endpoint type during probe
        Input: xpad - add support for PDP Xbox One controllers
        Input: xpad - add PDP device id 0x02a4
        Input: xpad - fix some coding style issues
        Input: xpad - avoid using __set_bit() for capabilities
        Input: xpad - add GPD Win 2 Controller USB IDs
        Input: xpad - fix GPD Win 2 controller name
        Input: xpad - add support for Xbox1 PDP Camo series gamepad
        cw1200: Don't leak memory if krealloc failes
        mwifiex: Fix NULL pointer dereference in skb_dequeue()
        mwifiex: fix p2p device doesn't find in scan problem
        netfilter: nf_tables: fix oops when inserting an element into a verdict map
        scsi: ufs: fix bugs related to null pointer access and array size
        scsi: ufshcd: Fix race between clk scaling and ungate work
        scsi: ufs: fix race between clock gating and devfreq scaling work
        scsi: ufshcd: release resources if probe fails
        scsi: qla2xxx: do not queue commands when unloading
        iwlwifi: mvm: fix regulatory domain update when the firmware starts
        tty: wipe buffer.
        tty: wipe buffer if not echoing data
        usb: xhci: fix uninitialized completion when USB3 port got wrong status
        btrfs: Ensure btrfs_trim_fs can trim the whole filesystem
        sched/core: Allow __sched_setscheduler() in interrupts when PI is not used
        namei: allow restricted O_CREAT of FIFOs and regular files
        s390/mm: Check for valid vma before zapping in gmap_discard
        drm/ast: Remove existing framebuffers before loading driver
        Linux 4.4.166

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

Conflicts:
	drivers/scsi/ufs/ufshcd.c
	kernel/debug/kdb/kdb_io.c