Merge 4.19.16 into android-4.19

Changes in 4.19.16
	Btrfs: fix deadlock when using free space tree due to block group creation
	staging: rtl8188eu: Fix module loading from tasklet for CCMP encryption
	staging: rtl8188eu: Fix module loading from tasklet for WEP encryption
	cpufreq: scmi: Fix frequency invariance in slow path
	x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
	ALSA: hda/realtek - Support Dell headset mode for New AIO platform
	ALSA: hda/realtek - Add unplug function into unplug state of Headset Mode for ALC225
	ALSA: hda/realtek - Disable headset Mic VREF for headset mode of ALC225
	CIFS: Fix adjustment of credits for MTU requests
	CIFS: Do not set credits to 1 if the server didn't grant anything
	CIFS: Do not hide EINTR after sending network packets
	CIFS: Fix credit computation for compounded requests
	cifs: Fix potential OOB access of lock element array
	usb: cdc-acm: send ZLP for Telit 3G Intel based modems
	USB: storage: don't insert sane sense for SPC3+ when bad sense specified
	USB: storage: add quirk for SMI SM3350
	USB: Add USB_QUIRK_DELAY_CTRL_MSG quirk for Corsair K70 RGB
	slab: alien caches must not be initialized if the allocation of the alien cache failed
	mm/usercopy.c: no check page span for stack objects
	mm, memcg: fix reclaim deadlock with writeback
	ACPI: power: Skip duplicate power resource references in _PRx
	ACPI / PMIC: xpower: Fix TS-pin current-source handling
	ACPI/IORT: Fix rc_dma_get_range()
	i2c: dev: prevent adapter retries and timeout being set as minus value
	mtd: rawnand: qcom: fix memory corruption that causes panic
	vfio/type1: Fix unmap overflow off-by-one
	drm/amdgpu: Add new VegaM pci id
	PCI: dwc: Use interrupt masking instead of disabling
	PCI: dwc: Take lock when ACKing an interrupt
	PCI: dwc: Move interrupt acking into the proper callback
	drm/amd/display: Fix MST dp_blank REG_WAIT timeout
	drm/fb_helper: Allow leaking fbdev smem_start
	drm/fb-helper: Partially bring back workaround for bugs of SDL 1.2
	drm/i915: Unwind failure on pinning the gen7 ppgtt
	drm/amdgpu: Don't ignore rc from drm_dp_mst_topology_mgr_resume()
	drm/amdgpu: Don't fail resume process if resuming atomic state fails
	rbd: don't return 0 on unmap if RBD_DEV_FLAG_REMOVING is set
	ext4: make sure enough credits are reserved for dioread_nolock writes
	ext4: fix a potential fiemap/page fault deadlock w/ inline_data
	ext4: avoid kernel warning when writing the superblock to a dead device
	ext4: use ext4_write_inode() when fsyncing w/o a journal
	ext4: track writeback errors using the generic tracking infrastructure
	ext4: fix special inode number checks in __ext4_iget()
	mm: page_mapped: don't assume compound page is huge or THP
	sunrpc: use-after-free in svc_process_common()
	KVM: arm/arm64: Fix VMID alloc race by reverting to lock-less
	arm64: compat: Don't pull syscall number from regs in arm_compat_syscall
	Btrfs: fix access to available allocation bits when starting balance
	Btrfs: fix deadlock when enabling quotas due to concurrent snapshot creation
	Btrfs: use nofs context when initializing security xattrs to avoid deadlock
	Linux 4.19.16

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>