Disco update: upstream stable patchset 2020-05-14

[Kamal Mostafa]

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 2020-05-14

                Ported from the following upstream stable releases:
                        v4.19.120, v.5.4.37,
                                    v5.4.38

       from git://git.kernel.org/

remoteproc: Fix wrong rvring index computation
mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer
binder: take read mode of mmap_sem in binder_alloc_free_page()
usb: dwc3: gadget: Do link recovery for SS and SSP
usb: gadget: udc: bdc: Remove unnecessary NULL checks in bdc_req_complete
iio:ad7797: Use correct attribute_group
ASoC: q6dsp6: q6afe-dai: add missing channels to MI2S DAIs
ASoC: tas571x: disable regulators on failed probe
ASoC: wm8960: Fix wrong clock after suspend & resume
nfsd: memory corruption in nfsd4_lock()
i2c: altera: use proper variable to hold errno
rxrpc: Fix DATA Tx to disable nofrag for UDP on AF_INET6 socket
net/cxgb4: Check the return from t4_query_params properly
xfs: acquire superblock freeze protection on eofblocks scans
svcrdma: Fix trace point use-after-free race
svcrdma: Fix leak of svc_rdma_recv_ctxt objects
PCI: Avoid ASMedia XHCI USB PME# from D0 defect
PCI: Move Apex Edge TPU class quirk to fix BAR assignment
ARM: dts: bcm283x: Disable dsi0 node
cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled
net/mlx5: Fix failing fw tracer allocation on s390
perf/core: fix parent pid/tid in task exit events
bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension
mm: shmem: disable interrupt when acquiring info->lock in userfaultfd_copy path
xfs: clear PF_MEMALLOC before exiting xfsaild thread
bpf, x86: Fix encoding for lower 8-bit registers in BPF_STX BPF_B
net: fec: set GPR bit on suspend by DT configuration.
x86: hyperv: report value of misc_features
xfs: fix partially uninitialized structure in xfs_reflink_remap_extent
ALSA: hda: Keep the controller initialization even if no codecs found
ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
scsi: target: fix PR IN / READ FULL STATUS for FC
scsi: target: tcmu: reset_ring should reset TCMU_DEV_BIT_BROKEN
objtool: Fix CONFIG_UBSAN_TRAP unreachable warnings
objtool: Support Clang non-section symbols in ORC dump
xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status
ALSA: hda: call runtime_allow() for all hda controllers
arm64: Delete the space separator in __emit_inst
ext4: use matching invalidatepage in ext4_writepage
ext4: increase wait time needed before reuse of deleted inode numbers
ext4: convert BUG_ON's to WARN_ON's in mballoc.c
hwmon: (jc42) Fix name to have no illegal characters
bpf, x86_32: Fix clobbering of dst for BPF_JSET
qed: Fix use after free in qed_chain_free
ext4: check for non-zero journal inum in ext4_calculate_overhead
printk: queue wake_up_klogd irq_work only if per-CPU areas are ready
kbuild: fix DT binding schema rule again to avoid needless rebuilds
usb: gadget: udc: atmel: Fix vbus disconnect handling
afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH
s390/ftrace: fix potential crashes when switching tracers
net/mlx5e: Get the latest values from counters in switchdev mode
PCI: Add ACS quirk for Zhaoxin multi-function devices
PCI: Make ACS quirk implementations more uniform
PCI: Unify ACS quirk desired vs provided checking
PCI: Add Zhaoxin Vendor ID
PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports
um: ensure `make ARCH=um mrproper` removes arch/$(SUBARCH)/include/generated/
libbpf: Initialize *nl_pid so gcc 10 is happy
signal: check sig before setting info in kill_pid_usb_asyncio
afs: Fix length of dump of bad YFSFetchStatus record
ALSA: hda: Release resources at error in delayed probe
net: stmmac: socfpga: Allow all RGMII modes
mac80211: fix channel switch trigger from unknown mesh peer
blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget
qed: Fix race condition between scheduling and destroying the slowpath workqueue
Crypto: chelsio - Fixes a hang issue during driver registration
net: use indirect call wrappers for skb_copy_datagram_iter()
UBUNTU: upstream stable to v4.19.120, v5.4.38