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Changes in 4.19.82 zram: fix race between backing_dev_show and backing_dev_store dm snapshot: introduce account_start_copy() and account_end_copy() dm snapshot: rework COW throttling to fix deadlock Btrfs: fix inode cache block reserve leak on failure to allocate data space Btrfs: fix memory leak due to concurrent append writes with fiemap btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents() btrfs: tracepoints: Fix wrong parameter order for qgroup events wil6210: fix freeing of rx buffers in EDMA mode f2fs: flush quota blocks after turnning it off scsi: lpfc: Fix a duplicate 0711 log message number. sc16is7xx: Fix for "Unexpected interrupt: 8" powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages() f2fs: fix to recover inode's i_gc_failures during POR f2fs: fix to recover inode->i_flags of inode block during POR HID: i2c-hid: add Direkt-Tek DTLAPY133-1 to descriptor override usb: dwc2: fix unbalanced use of external vbus-supply tools/power turbostat: fix goldmont C-state limit decoding x86/cpu: Add Atom Tremont (Jacobsville) drm/msm/dpu: handle failures while initializing displays bcache: fix input overflow to writeback_rate_minimum PCI: Fix Switchtec DMA aliasing quirk dmesg noise Btrfs: fix deadlock on tree root leaf when finding free extent netfilter: ipset: Make invalid MAC address checks consistent HID: i2c-hid: Disable runtime PM for LG touchscreen HID: i2c-hid: Ignore input report if there's no data present on Elan touchpanels HID: i2c-hid: Add Odys Winbook 13 to descriptor override platform/x86: Add the VLV ISP PCI ID to atomisp2_pm platform/x86: Fix config space access for intel_atomisp2_pm ath10k: assign 'n_cipher_suites = 11' for WCN3990 to enable WPA3 clk: boston: unregister clks on failure in clk_boston_setup() scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks staging: mt7621-pinctrl: use pinconf-generic for 'dt_node_to_map' and 'dt_free_map' HID: Add ASUS T100CHI keyboard dock battery quirks NFSv4: Ensure that the state manager exits the loop on SIGKILL HID: steam: fix boot loop with bluetooth firmware HID: steam: fix deadlock with input devices. samples: bpf: fix: seg fault with NULL pointer arg usb: dwc3: gadget: early giveback if End Transfer already completed usb: dwc3: gadget: clear DWC3_EP_TRANSFER_STARTED on cmd complete ALSA: usb-audio: Cleanup DSD whitelist usb: handle warm-reset port requests on hub resume rtc: pcf8523: set xtal load capacitance from DT arm64: Add MIDR encoding for HiSilicon Taishan CPUs arm64: kpti: Whitelist HiSilicon Taishan v110 CPUs mlxsw: spectrum: Set LAG port collector only when active scsi: lpfc: Correct localport timeout duration error CIFS: Respect SMB2 hdr preamble size in read responses cifs: add credits from unmatched responses/messages ALSA: hda/realtek - Apply ALC294 hp init also for S4 resume media: vimc: Remove unused but set variables ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT exec: load_script: Do not exec truncated interpreter path net: dsa: mv88e6xxx: Release lock while requesting IRQ PCI/PME: Fix possible use-after-free on remove drm/amd/display: fix odm combine pipe reset power: supply: max14656: fix potential use-after-free iio: adc: meson_saradc: Fix memory allocation order iio: fix center temperature of bmc150-accel-core libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature perf tests: Avoid raising SEGV using an obvious NULL dereference perf map: Fix overlapped map handling perf script brstackinsn: Fix recovery from LBR/binary mismatch perf jevents: Fix period for Intel fixed counters perf tools: Propagate get_cpuid() error perf annotate: Propagate perf_env__arch() error perf annotate: Fix the signedness of failure returns perf annotate: Propagate the symbol__annotate() error return perf annotate: Return appropriate error code for allocation failures staging: rtl8188eu: fix null dereference when kzalloc fails RDMA/hfi1: Prevent memory leak in sdma_init RDMA/iwcm: Fix a lock inversion issue HID: hyperv: Use in-place iterator API in the channel callback nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request arm64: ftrace: Ensure synchronisation in PLT setup for Neoverse-N1 #1542419 tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()' tty: n_hdlc: fix build on SPARC gpio: max77620: Use correct unit for debounce times fs: cifs: mute -Wunused-const-variable message serial: mctrl_gpio: Check for NULL pointer efi/cper: Fix endianness of PCIe class code efi/x86: Do not clean dummy variable in kexec path MIPS: include: Mark __cmpxchg as __always_inline x86/xen: Return from panic notifier ocfs2: clear zero in unaligned direct IO fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry() fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock() fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc() arm64: armv8_deprecated: Checking return value for memory allocation x86/cpu: Add Comet Lake to the Intel CPU models header sched/vtime: Fix guest/system mis-accounting on task switch perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp drm/amdgpu: fix memory leak iio: imu: adis16400: release allocated memory on failure MIPS: include: Mark __xchg as __always_inline MIPS: fw: sni: Fix out of bounds init of o32 stack virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr nbd: fix possible sysfs duplicate warning NFSv4: Fix leak of clp->cl_acceptor string s390/uaccess: avoid (false positive) compiler warnings tracing: Initialize iter->seq after zeroing in tracing_read_pipe() ARM: 8914/1: NOMMU: Fix exc_ret for XIP ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360 iwlwifi: exclude GEO SAR support for 3168 nbd: verify socket is supported during setup USB: legousbtower: fix a signedness bug in tower_probe() thunderbolt: Use 32-bit writes when writing ring producer/consumer ath6kl: fix a NULL-ptr-deref bug in ath6kl_usb_alloc_urb_from_pipe() fuse: flush dirty data/metadata before non-truncate setattr fuse: truncate pending writes on O_TRUNC ALSA: bebob: Fix prototype of helper function to return negative value ALSA: hda/realtek - Fix 2 front mics of codec 0x623 ALSA: hda/realtek - Add support for ALC623 UAS: Revert commit3ae62a4209("UAS: fix alignment of scatter/gather segments") USB: gadget: Reject endpoints with 0 maxpacket value usb-storage: Revert commit747668dbc0("usb-storage: Set virt_boundary_mask to avoid SG overflows") USB: ldusb: fix ring-buffer locking USB: ldusb: fix control-message timeout usb: xhci: fix __le32/__le64 accessors in debugfs code USB: serial: whiteheat: fix potential slab corruption USB: serial: whiteheat: fix line-speed endianness scsi: target: cxgbit: Fix cxgbit_fw4_ack() HID: i2c-hid: add Trekstor Primebook C11B to descriptor override HID: Fix assumption that devices have inputs HID: fix error message in hid_open_report() nl80211: fix validation of mesh path nexthop s390/cmm: fix information leak in cmm_timeout_handler() s390/idle: fix cpu idle time calculation arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default rtlwifi: Fix potential overflow on P2P code dmaengine: qcom: bam_dma: Fix resource leak dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle drm/amdgpu/powerplay/vega10: allow undervolting in p7 NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid() batman-adv: Avoid free/alloc race when handling OGM buffer llc: fix sk_buff leak in llc_sap_state_process() llc: fix sk_buff leak in llc_conn_service() rxrpc: Fix call ref leak rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record rxrpc: Fix trace-after-put looking at the put peer record NFC: pn533: fix use-after-free and memleaks bonding: fix potential NULL deref in bond_update_slave_arr net: usb: sr9800: fix uninitialized local variable sch_netem: fix rcu splat in netem_enqueue() ALSA: timer: Simplify error path in snd_timer_open() ALSA: timer: Fix mutex deadlock at releasing card ALSA: usb-audio: DSD auto-detection for Playback Designs ALSA: usb-audio: Update DSD support quirks for Oppo and Rotel ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface powerpc/powernv: Fix CPU idle to be called with IRQs disabled Revert "ALSA: hda: Flush interrupts on disabling" Linux 4.19.82 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I79ced3dcffed0086af7d8a77116e8061915677a1
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.