Focal update: v5.4.56 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:

       v5.4.56 upstream stable release
       from git://git.kernel.org/

crypto: ccp - Release all allocated memory if sha type is invalid
media: rc: prevent memory leak in cx23888_ir_probe
sunrpc: check that domain table is empty at module unload.
ath10k: enable transmit data ack RSSI for QCA9884
PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge
mm/filemap.c: don't bother dropping mmap_sem for zero size readahead
ALSA: usb-audio: Add implicit feedback quirk for SSL2
ALSA: hda/realtek: enable headset mic of ASUS ROG Zephyrus G15(GA502) series with ALC289
ALSA: hda/realtek: typo_fix: enable headset mic of ASUS ROG Zephyrus G14(GA401) series with ALC289
ALSA: hda/realtek: Fix add a "ultra_low_power" function for intel reference board (alc256)
ALSA: hda/hdmi: Fix keep_power assignment for non-component devices
IB/rdmavt: Fix RQ counting issues causing use of an invalid RWQE
vhost/scsi: fix up req type endian-ness
9p/trans_fd: Fix concurrency del of req_list in p9_fd_cancelled/p9_read_work
wireless: Use offsetof instead of custom macro.
ARM: 8986/1: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints
ARM: dts: imx6sx-sabreauto: Fix the phy-mode on fec2
ARM: dts: imx6sx-sdb: Fix the phy-mode on fec2
ARM: dts: imx6qdl-icore: Fix OTG_ID pin and sdcard detect
virtio_balloon: fix up endian-ness for free cmd id
Revert "drm/amdgpu: Fix NULL dereference in dpm sysfs handlers"
drm/amd/display: Clear dm_state for fast updates
drm/amdgpu: Prevent kernel-infoleak in amdgpu_info_ioctl()
drm/dbi: Fix SPI Type 1 (9-bit) transfer
drm: hold gem reference until object is no longer accessed
rds: Prevent kernel-infoleak in rds_notify_queue_get()
libtraceevent: Fix build with binutils 2.35
net/x25: Fix x25_neigh refcnt leak when x25 disconnect
net/x25: Fix null-ptr-deref in x25_disconnect
xfrm: policy: match with both mark and mask on user interfaces
ARM: dts sunxi: Relax a bit the CMA pool allocation range
xfrm: Fix crash when the hold queue is used.
ARM: dts: armada-38x: fix NETA lockup when repeatedly switching speeds
nvme-tcp: fix possible hang waiting for icresp response
selftests/net: rxtimestamp: fix clang issues for target arch PowerPC
selftests/net: psock_fanout: fix clang issues for target arch PowerPC
selftests/net: so_txtime: fix clang issues for target arch PowerPC
sh/tlb: Fix PGTABLE_LEVELS > 2
sh: Fix validation of system call number
net: hns3: fix a TX timeout issue
net: hns3: fix aRFS FD rules leftover after add a user FD rule
net/mlx5: E-switch, Destroy TSAR when fail to enable the mode
net/mlx5e: Fix error path of device attach
net/mlx5: Verify Hardware supports requested ptp function on a given pin
net/mlx5e: Modify uplink state on interface up/down
net/mlx5e: Fix kernel crash when setting vf VLANID on a VF dev
net: lan78xx: add missing endpoint sanity check
net: lan78xx: fix transfer-buffer memory leak
rhashtable: Fix unprotected RCU dereference in __rht_ptr
mlx4: disable device on shutdown
mlxsw: core: Increase scope of RCU read-side critical section
mlxsw: core: Free EMAD transactions using kfree_rcu()
ibmvnic: Fix IRQ mapping disposal in error path
bpf: Fix map leak in HASH_OF_MAPS map
mac80211: mesh: Free ie data when leaving mesh
mac80211: mesh: Free pending skb when destroying a mpath
arm64/alternatives: move length validation inside the subsection
arm64: csum: Fix handling of bad packets
Bluetooth: fix kernel oops in store_pending_adv_report
net: nixge: fix potential memory leak in nixge_probe()
net: gemini: Fix missing clk_disable_unprepare() in error path of gemini_ethernet_port_probe()
net/mlx5e: fix bpf_prog reference count leaks in mlx5e_alloc_rq
perf tools: Fix record failure when mixed with ARM SPE event
vxlan: fix memleak of fdb
usb: hso: Fix debug compile warning on sparc32
selftests: fib_nexthop_multiprefix: fix cleanup() netns deletion
qed: Disable "MFW indication via attention" SPAM every 5 minutes
selftests: net: ip_defrag: modprobe missing nf_defrag_ipv6 support
nfc: s3fwrn5: add missing release on skb in s3fwrn5_recv_frame
scsi: core: Run queue in case of I/O resource contention failure
parisc: add support for cmpxchg on u8 pointers
net: ethernet: ravb: exit if re-initialization fails in tx timeout
Revert "i2c: cadence: Fix the hold bit setting"
x86/unwind/orc: Fix ORC for newly forked tasks
x86/stacktrace: Fix reliable check for empty user task stacks
cxgb4: add missing release on skb in uld_send()
xen-netfront: fix potential deadlock in xennet_remove()
RISC-V: Set maximum number of mapped pages correctly
drivers/net/wan: lapb: Corrected the usage of skb_cow
KVM: arm64: Don't inherit exec permission across page-table levels
KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled
x86/i8259: Use printk_deferred() to prevent deadlock
perf tests bp_account: Make global variable static
perf env: Do not return pointers to local variables
perf bench: Share some global variables to fix build with gcc 10
Linux 5.4.56
UBUNTU: upstream stable to v5.4.56