Bionic update: upstream stable patchset 2020-09-23

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The following upstream
       stable patches should be included in the Ubuntu kernel:

       upstream stable patchset 2020-09-23

                Ported from the following upstream stable releases:
                        v4.14.197, v4.19.144,
                        v4.14.198, v4.19.145

       from git://git.kernel.org/

HID: core: Correctly handle ReportSize being zero
HID: core: Sanitize event code and type when mapping input
perf record/stat: Explicitly call out event modifiers in the documentation
drm/msm: add shutdown support for display platform_driver
hwmon: (applesmc) check status earlier.
nvmet: Disable keep-alive timer when kato is cleared to 0h
ceph: don't allow setlease on cephfs
cpuidle: Fixup IRQ state
s390: don't trace preemption in percpu macros
xen/xenbus: Fix granting of vmalloc'd memory
dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
batman-adv: Avoid uninitialized chaddr when handling DHCP
batman-adv: Fix own OGM check in aggregated OGMs
batman-adv: bla: use netif_rx_ni when not in interrupt context
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
MIPS: mm: BMIPS5000 has inclusive physical caches
MIPS: BMIPS: Also call bmips_cpu_setup() for secondary cores
netfilter: nf_tables: add NFTA_SET_USERDATA if not null
netfilter: nf_tables: incorrect enum nft_list_attributes definition
netfilter: nf_tables: fix destination register zeroing
net: hns: Fix memleak in hns_nic_dev_probe
net: systemport: Fix memleak in bcm_sysport_probe
ravb: Fixed to be able to unload modules
net: arc_emac: Fix memleak in arc_mdio_probe
dmaengine: pl330: Fix burst length if burst size is smaller than bus width
bnxt_en: Check for zero dir entries in NVRAM.
bnxt_en: Fix PCI AER error recovery flow
nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
perf tools: Correct SNOOPX field offset
net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
fix regression in "epoll: Keep a reference on files added to the check list"
tg3: Fix soft lockup when tg3_reset_task() fails.
iommu/vt-d: Serialize IOMMU GCMD register modifications
thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
include/linux/log2.h: add missing () around n in roundup_pow_of_two()
btrfs: drop path before adding new uuid tree entry
btrfs: Remove redundant extent_buffer_get in get_old_root
btrfs: Remove extraneous extent_buffer_get from tree_mod_log_rewind
btrfs: set the lockdep class for log tree extent buffers
uaccess: Add non-pagefault user-space read functions
uaccess: Add non-pagefault user-space write function
btrfs: fix potential deadlock in the search ioctl
net: usb: qmi_wwan: add Telit 0x1050 composition
usb: qmi_wwan: add D-Link DWM-222 A2 device ID
ALSA: ca0106: fix error code handling
ALSA: pcm: oss: Remove superfluous WARN_ON() for mulaw sanity check
ALSA: hda/hdmi: always check pin power status in i915 pin fixup
ALSA: firewire-digi00x: exclude Avid Adrenaline from detection
affs: fix basic permission bits to actually work
block: allow for_each_bvec to support zero len bvec
block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
libata: implement ATA_HORKAGE_MAX_TRIM_128M and apply to Sandisks
dm cache metadata: Avoid returning cmd->bm wild pointer on error
dm thin metadata: Avoid returning cmd->bm wild pointer on error
mm: slub: fix conversion of freelist_corrupted()
KVM: arm64: Add kvm_extable for vaxorcism code
KVM: arm64: Defer guest entry when an asynchronous exception is pending
KVM: arm64: Survive synchronous exceptions caused by AT instructions
KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
checkpatch: fix the usage of capture group ( ... )
mm/hugetlb: fix a race between hugetlb sysctl handlers
cfg80211: regulatory: reject invalid hints
net: usb: Fix uninit-was-stored issue in asix_read_phy_addr()
ALSA; firewire-tascam: exclude Tascam FE-8 from detection
block: ensure bdi->io_pages is always initialized
vfio/pci: Fix SR-IOV VF handling with MMIO blocking
bnxt: don't enable NAPI until rings are ready
netlabel: fix problems with mapping removal
net: usb: dm9601: Add USB ID of Keenetic Plus DSL
sctp: not disable bh in the whole sctp_get_port_local()
tipc: fix shutdown() of connectionless socket
net: disable netpoll on fresh napis
scsi: target: tcmu: Fix size in calls to tcmu_flush_dcache_range
scsi: target: tcmu: Optimize use of flush_dcache_page
selftests/bpf: Fix massive output from test_maps
netfilter: nfnetlink: nfnetlink_unicast() reports EAGAIN instead of ENOBUFS
perf jevents: Fix suspicious code in fixregex()
ext2: don't update mtime on COW faults
xfs: don't update mtime on COW faults
UBUNTU: upstream stable to v4.14.198, v4.19.145