Focal update: v5.4.9 upstream stable release

    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:

       v5.4.9 upstream stable release
       from git://git.kernel.org/

Linux 5.4.9
mm/hugetlb: defer freeing of huge pages if in non-task context
hsr: fix a race condition in node list insertion and deletion
hsr: fix error handling routine in hsr_dev_finalize()
hsr: avoid debugfs warning message when module is remove
net: annotate lockless accesses to sk->sk_pacing_shift
perf/x86/intel/bts: Fix the use of page_private()
efi: Don't attempt to map RCI2 config table if it doesn't exist
lib/ubsan: don't serialize UBSAN report
xen/blkback: Avoid unmapping unmapped grant pages
mm/sparse.c: mark populate_section_memmap as __meminit
s390/smp: fix physical to logical CPU map for SMT
Btrfs: only associate the locked page with one async_chunk struct
btrfs: get rid of unique workqueue helper functions
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
net: add annotations on hh->hh_len lockless accesses
xfs: periodically yield scrub threads to the scheduler
drm/i915/execlists: Fix annotation for decoupling virtual request
ath9k_htc: Discard undersized packets
ath9k_htc: Modify byte order for an error message
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
fs: cifs: Fix atime update check vs mtime
cifs: Fix lookup of root ses in DFS referral cache
tty: serial: msm_serial: Fix lockup for sysrq and oops
phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
media: usb: fix memory leak in af9005_identify_state
regulator: ab8500: Remove AB8505 USB regulator
media: flexcop-usb: ensure -EIO is returned on error condition
arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
arm64: dts: meson-gxl-s905x-khadas-vim: fix uart_A bluetooth node
Bluetooth: Fix memory leak in hci_connect_le_scan
Bluetooth: delete a stray unlock
Bluetooth: btusb: fix PM leak in error case of setup
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
spi: uniphier: Fix FIFO threshold
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
regulator: axp20x: Fix axp20x_set_ramp_delay
watchdog: tqmx86_wdt: Fix build error
net, sysctl: Fix compiler warning when only cBPF is present
netfilter: nf_queue: enqueue skbs with NULL dst
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
xfs: don't check for AG deadlock for realtime files in bunmapi
firmware: arm_scmi: Avoid double free in error flow
cifs: Fix potential softlockups while refreshing DFS cache
of: overlay: add_changeset_property() memory leak
iommu/vt-d: Remove incorrect PSI capability check
perf callchain: Fix segfault in thread__resolve_callchain_sample()
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
kernel/module.c: wakeup processes in module_wq on module unload
net/sched: annotate lockless accesses to qdisc->empty
HID: i2c-hid: Reset ALPS touchpads on resume
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
nfsd4: fix up replay_matches_cache()
arm64: dts: qcom: msm8998-clamshell: Remove retention idle state
sunrpc: fix crash when cache_head become valid before update
PM / devfreq: Check NULL governor in available_governors_show
drm/msm: include linux/sched/task.h
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
ftrace: Avoid potential division by zero in function profiler
arm64: Revert support for execute-only user mappings
exit: panic before exit_mm() on global init exit
scsi: lpfc: Fix rpi release when deleting vport
ALSA: firewire-motu: Correct a typo in the clock proc string
ALSA: pcm: Yet another missing check of non-cached buffer type
ALSA: cs4236: fix error return comparison of an unsigned integer
gen_initramfs_list.sh: fix 'bad variable name' error
dmaengine: virt-dma: Fix access after free in vchan_complete()
apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
mm/gup: fix memory leak in __gup_benchmark_ioctl
io_uring: use current task creds instead of allocating a new one
samples/trace_printk: Wait for IRQ work to finish
tracing: Fix endianness bug in histogram trigger
tracing: Have the histogram compare functions convert to u64 first
tracing: Avoid memory leak in process_system_preds()
tracing: Fix lock inversion in trace_event_enable_tgid_record()
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
riscv: ftrace: correct the condition logic in function graph tracer
clocksource: riscv: add notrace to riscv_sched_clock
gpiolib: fix up emulated open drain outputs
gpio: xtensa: fix driver build
libata: Fix retrieving of active qcs
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: Fix AHCI resources management
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
bpf: Fix precision tracking for unbounded scalars
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
compat_ioctl: block: handle Persistent Reservations
Btrfs: fix infinite loop during nocow writeback due to race
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
dmaengine: Fix access to uninitialized dma_slave_caps
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
samples/seccomp: Zero out members based on seccomp_notif_sizes
seccomp: Check that seccomp_notif is zeroed out by the user
selftests/seccomp: Zero out seccomp_notif
locks: print unsigned ino in /proc/locks
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
pstore/ram: Write new dumps to start of recycled zones
ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
mm/oom: fix pgtables units mismatch in Killed process message
mm: move_pages: return valid node id in status if the page is already on the target node
memcg: account security cred as well to kmemcg
mm/zsmalloc.c: fix the migrated zspage statistics.
mm/memory_hotplug: shrink zones when offlining memory
media: cec: check 'transmit_in_progress', not 'transmitting'
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: CEC 2.0-only bcast messages were ignored
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
MIPS: Avoid VDSO ABI breakage due to global register variable
MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig
MIPS: BPF: Disable MIPS32 eBPF JIT
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock
drm/sun4i: hdmi: Remove duplicate cleanup calls
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: usb-audio: set the interface format after resume on Dell WD19
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
block: add bio_truncate to fix guard_bio_eod
netfilter: nft_tproxy: Fix port selector on Big Endian
ALSA: hda - Downgrade error message for single-cmd fallback
taskstats: fix data-race
shmem: pin the file in shmem_fault() if mmap_sem is dropped
tcp: fix data-race in tcp_recvmsg()
ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
PCI: Fix missing inline for pci_pr3_present()
ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver
PCI: Add a helper to check Power Resource Requirements _PR3 existence
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
xen/balloon: fix ballooned page accounting without hotplug enabled
xen-blkback: prevent premature module unload
IB/mlx5: Fix steering rule of drop and count
IB/mlx4: Follow mirror sequence of device add during device removal
RDMA/counter: Prevent auto-binding a QP which are not tracked with res
s390/cpum_sf: Avoid SBD overflow condition in irq handler
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
md: raid1: check rdev before reference in raid1_sync_request func
raid5: need to set STRIPE_HANDLE for batch head
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
afs: Fix mountpoint parsing
net: make socket read/write_iter() honor IOCB_NOWAIT
usb: gadget: fix wrong endpoint desc
drm/nouveau/kms/nv50-: fix panel scaling
drm/nouveau: Fix drm-core using atomic code-paths on pre-nv50 hardware
drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
staging/wlan-ng: add CRC32 dependency in Kconfig
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
scsi: libsas: stop discovering if oob mode is disconnected
scsi: iscsi: qla4xxx: fix double free in probe
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
rxe: correctly calculate iCRC for unaligned payloads
RDMA/cma: add missed unregister_pernet_subsys in init failure
afs: Fix SELinux setting security label on /afs
afs: Fix afs_find_server lookups for ipv4 peers
PM / devfreq: Don't fail devfreq_dev_release if not in list
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
PM / devfreq: Fix devfreq_notifier_call returning errno
iio: adc: max9611: Fix too short conversion time delay
iio: st_accel: Fix unused variable warning
nvme/pci: Fix read queue count
nvme/pci: Fix write and poll queue types
drm/amd/display: update dispclk and dppclk vco frequency
drm/amd/display: Reset steer fifo before unblanking the stream
drm/amd/display: Change the delay time before enabling FEC
drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal
drm/amdgpu: add cache flush workaround to gfx8 emit_fence
drm/amdgpu: add header line for power profile on Arcturus
drm/amdgpu: add check before enabling/disabling broadcast mode
nvme-fc: fix double-free scenarios on hw queues
nvme_fc: add module to ops template to allow module references
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found