Merge Linux 4.4.264 kernel

Changes in 4.4.264: (35 commits)
        net: fec: ptp: avoid register access when ipg clock is disabled
        powerpc/4xx: Fix build errors from mfdcr()
        atm: eni: dont release is never initialized
        atm: lanai: dont run lanai_dev_close if not open
        net: tehuti: fix error return code in bdx_probe()
        sun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count
        nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default
        NFS: Correct size calculation for create reply length
        atm: uPD98402: fix incorrect allocation
        atm: idt77252: fix null-ptr-dereference
        u64_stats,lockdep: Fix u64_stats_init() vs lockdep
        nfs: we don't support removing system.nfs4_acl
        ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls
        ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign
        x86/tlb: Flush global mappings when KAISER is disabled
        squashfs: fix inode lookup sanity checks
        squashfs: fix xattr id and id lookup sanity checks
        bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD
        macvlan: macvlan_count_rx() needs to be aware of preemption
        net: dsa: bcm_sf2: Qualify phydev->dev_flags based on port
        e1000e: add rtnl_lock() to e1000_reset_task
        e1000e: Fix error handling in e1000_set_d0_lplu_state_82571
        net/qlcnic: Fix a use after free in qlcnic_83xx_get_minidump_template
        can: c_can_pci: c_can_pci_remove(): fix use-after-free
        can: c_can: move runtime PM enable/disable to c_can_platform
        can: m_can: m_can_do_rx_poll(): fix extraneous msg loss warning
        mac80211: fix rate mask reset
        net: cdc-phonet: fix data-interface release on probe failure
        RDMA/cxgb4: Fix adapter LE hash errors while destroying ipv6 listening server
        perf auxtrace: Fix auxtrace queue conflict
        can: dev: Move device back to init netns on owning netns delete
        net: sched: validate stab values
        mac80211: fix double free in ibss_leave
        xen-blkback: don't leak persistent grants from xen_blkbk_map()
        Linux 4.4.264