Linux 4.14 has been released on 12 Nov 2017.

Summary: This release includes support for bigger memory limits in x86 hardware (128PiB of virtual address space, 4PiB of physical address space); support for AMD Secure Memory Encryption; a new unwinder that provides better kernel traces and a smaller kernel size; a cgroups "thread mode" that allows resource distribution across the threads of a group of processes; support for the zstd compression algorithm has been added to Btrfs and Squashfs; support for zero-copy of data from user memory to sockets; better asynchronous buffered I/O support; support for Heterogeneous Memory Management that will be needed in future GPUs; better cpufreq behaviour in some corner cases; Longer-lived TLB entries by using the PCID CPU feature; asynchronous non-blocking buffered reads; and many new drivers and other improvements.

1. Prominent features

1.1. Bigger memory limits

Original x86-64 was limited by 4-level paging to 256 TiB of virtual address space and 64 TiB of physical address space. People are already bumping into this limit: some vendors offers servers with 64 TiB of memory today. To overcome the limitation upcoming hardware will introduce support for 5-level paging. It is a straight-forward extension of the current page table structures adding one more layer of translation. It bumps the limits to 128 PiB of virtual address space and 4 PiB of physical address space. This "ought to be enough for anybody" ©.

On x86, 5-level paging enables 56-bit userspace virtual address space. Not all user space is ready to handle wide addresses. It's known that at least some JIT compilers use higher bits in pointers. It collides with valid pointers with 5-level paging and leads to crashes. To mitigate this, the Linux kernel will not allocate virtual address space above 47-bit by default. Userspace can ask for allocation from full address space by specifying hint address above 47-bits.

Recommended LWN article: Five-level page tables

Code: commit, commit, commit, commit, merge

1.2. Add support for AMD Secure Memory Encryption

Secure Memory Encryption can be used to mark individual pages of memory as encrypted through the page tables. A page of memory that is marked encrypted will be automatically decrypted when read from DRAM and will be automatically encrypted when written to DRAM. Secure Memory Encryption can therefore be used to protect the contents of DRAM from physical attacks on the system.

Recommended LWN article: Two approaches to x86 memory encryption

AMD Memory encryption whitepaper: link

Code: commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

1.3. Better kernel traces with the ORC unwinder

This release includes a new "unwinder". An "unwinder" is what prints the list of functions (aka. stack trace, callgraph, call stack...) that have been executed before reaching a determinate point of the code, and it's used, for example, the list of functions that lead to a crash when a kernel oopses. The new unwinder is called ORC, an alias for "Oops Rewind Capability", and has been developed as an simpler alternative to the DWARF debuginfo format.

Linux already has an unwinder, and while it usually works well, it isn't reliable in all situations, which causes troubles for modern functionality like live patching that requires completely reliable stack traces. It also requires a functionality called "frame pointers" (CONFIG_FRAME_POINTERS) to print complete call stacks. Frame pointers make GCC add instrumentation code to every function in the kernel, which increases the size of the kernel executable code by about 3.2%, resulting in a broad kernel-wide slowdown, and more for some workloads. This option is enabled by default in some Linux distros.

In contrast, the ORC unwinder does not need to insert code anywhere so it has no effect on text size or runtime performance, because the debuginfo (about 2-4MiB) is placed out of band. So the ORC unwinder provides a nice performance improvement across the board compared with frame pointers, while at the same time having reliable stack traces.

Recommended LWN article: The ORCs are coming

Recommended article: The Linux x86 ORC Stack Unwinder

Code: commit, commit

1.4. zstd compression in Btrfs and Squashfs

zstd offers a wide variety of compression speed and quality trade-offs. It can compress at speeds approaching lz4, and quality approaching lzma. zstd decompressions at speeds more than twice as fast as zlib, and decompression speed remains roughly the same across all compression levels. Because it is a big win in speed over zlib and in compression ratio over lzo, FB has been using it in production with great results. Support has also been added for squashfs. For benchmark numbers see the links.

Project page: https://github.com/facebook/zstd

Code: commit, commit, commit, commit

1.5. Zero-copy from user memory to sockets

Copying large buffers between user process and kernel can be expensive. Linux supports various interfaces that eschew copying, such as sendpage(2) and splice(2). The MSG_ZEROCOPY socket flag extends the underlying copy avoidance mechanism to common socket send calls. Copy avoidance is not a free lunch. As implemented, with page pinning, it replaces per byte copy cost with page accounting and completion notification overhead. As a result, MSG_ZEROCOPY is generally only effective at writes over around 10 KB.

Recommended LWN article: Zero-copy networking

Documentation: MSG_ZEROCOPY

Netdev talk: sendmsg copy avoidance with MSG_ZEROCOPY

1.6. Heterogeneous Memory Management for future GPUs

Today device driver expose dedicated memory allocation API through their device file, often relying on a combination of IOCTL and mmap calls. The device can only access and use memory allocated through this API. This effectively split the program address space into object allocated for the device and useable by the device and other regular memory (malloc, mmap of a file, share memory, ...) only accessible by CPU (or in a very limited way by a device by pinning memory). Allowing different isolated component of a program to use a device thus require duplication of the input data structure using device memory allocator. This is reasonable for simple data structure (array, grid, image, ...) but this get extremely complex with advance data structures. This is becoming a serious limitation on the kind of work load that can be offloaded to device like GPU.

New industry standard like C++, OpenCL or CUDA are pushing to remove this barrier. This require a shared address space between GPU device and CPU so that GPU can access any memory of a process (while still obeying memory protection like read only). This kind of feature is also appearing in various other operating systems. Heterogeneous Memory Management is a set of helpers to facilitate several aspects of address space sharing and device memory management.

Recommended LWN article: Heterogeneous memory management

Documentation: Documentation/vm/hmm.txt

Code: commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

1.7. Asynchronous buffered I/O support

The buffered I/O path in Linux can block in some situations. Using a threadpool to emulate non-blocking operations on regular buffered files is a common pattern today (samba, libuv, etc...) Applications split the work between network bound threads (epoll) and IO threadpool. Not every application can use sendfile syscall (TLS / post-processing). This common pattern leads to increased request latency. Latency can be due to additional synchronization between the threads or fast (cached data) request stuck behind slow request (large / uncached data).

In this release, the preadv2(2) syscall with RWF_NONBLOCK will let userspace applications bypass enqueuing operation in the threadpool if it's already available in the pagecache.

Code: commit, commit, commit, commit

1.8. Better cpufreq coordination with SMP

In Linux, notifications of task scheduler events are sent to the cpufreq subsystem, so that it can increase the frequency if needed, and achieve good interactivity. However, the cpufreq drivers are not called when the events are happening in different CPUs, for example, a new process being created in another CPU. This release makes task scheduler to update the cpufreq policies for remote CPUs as well. The schedutil, ondemand and conservative governors are updated to process cpufreq updates for remote CPUs (the intel_pstate driver is updated to always reject them).

Recommended LWN article: CPU frequency governors and remote callbacks

Code: commit, commit

1.9. Control Groups thread mode

In this release, cgroup v2 supports thread granularity, to support use cases requiring hierarchical resource distribution across the threads of a group of processes. By default, all threads of a process belong to the same cgroup, which also serves as the resource domain to host resource consumptions which are not specific to a process or thread. The thread mode allows threads to be spread across a subtree while still maintaining the common resource domain for them.

Recommended LWN article: A milestone for control groups

Code: commit, commit, commit, commit, commit, commit

1.10. Longer-lived TLB Entries with PCID

PCID is a hardware feature that has been available on Intel CPUs and that it attaches an address space tag to TLB entries and thus allows the hardware to skip TLB flushes when it context-switches. x86's PCID is far too short to uniquely identify a process, and it can't even really uniquely identify a running process because there are monster systems with over 4096 CPUs. To make matters worse, past attempts to use all 12 PCID bits have resulted in slowdowns instead of speedups.

This release uses PCID differently. It uses a PCID to identify a recently-used mm on a per-cpu basis. An mm has no fixed PCID binding at all; instead, it is given a fresh PCID each time it's loaded except in cases where the kernel wants to preserve the TLB, in which case it reuses a recent value.

Code: commit, commit, commit, commit, commit, commit, commit, commit

2. Core (various)

Asynchronous I/O: non-blocking buffered reads (FEATURED) commit, commit, commit, commit

Control Groups (cgroup) Implement cgroup v2 thread mode (FEATURED) commit, commit, commit, commit, commit, commit Adds a new cgroupfs mount option, cpuset_v2_mode , to enable cpuset controller to use v2 behavior in a v1 cgroup commit, commit cgroup: introduce an ability to control the size of cgroup hierarchy. The cgroup.max.descendants file allows to set the maximum allowed number of descendant cgroups, the cgroup.max.depth file controls the maximum depth of the cgroup tree. A cgroup.stat file is added with some stats commit, commit, commit, commit

cpufreq: schedutil: Make iowait boost more energy efficient by doubling the boost for every consecutive iowait update, instead of going directly to the maximum commit

gcc plugins structleak: add option to force initialize all struct type variables passed by reference commit randstruct: Enable function pointer struct detection commit

PM: docs: Describe high-level PM strategies and sleep states commit

futex: Allow for compiling out PI support commit

Remove gperf usage from toolchain commit

IRQ debugfs: Triggering of interrupts from userspace commit irq_sim: Add a simple interrupt simulator framework commit

ipc: optimize semget/shmget/msgget for lots of keys commit

lockdep: Add 'cross-release' support, which allows APIs like completions or page locks, where it's not the 'owner' who releases the lock, to be tracked too commit, commit, commit,commit

Add zstd compression and decompression (FEATURED) commit

Add xxhash hash algorithms (needed by zstd) commit

Extend the sys_membarrier(2) ABI with the MEMBARRIER_CMD_PRIVATE_EXPEDITED variant. It executes faster than the non-expedited variant (no blocking), and it also works on NOHZ_FULL configurations commit

prctl: Allow local CAP_SYS_ADMIN changing exe_file, used by checkpointing software commit

task scheduler Call the cpufreq callbacks for remote CPUs as well as local (FEATURED) commit, commit Hotplug state fail injection commit Improve the interrupt and rescheduling latency in systems that have a very long wakeup list commit, commit Add debugfs knob for "sched_debug" commit Show task state in /proc/sched_debug commit

objtool: Add ORC unwind table generation (FEATURED) commit

Greatly improve quota scalability (100% improvement for file creation and about 50% improvement for file unlink in some benchmarks) commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

driver core: emit uevents when device is bound to a driver commit

power management: Extend generic power domain debugfs commit

firmware: delete in-kernel firmware commit

3. File systems

BTRFS Add zstd support (FEATURED) commit Allow a degraded read-write mount if all the raid profile constraints are met commit, commit Improve ssd allocation algorithms commit Allow defrag compress to override NOCOMPRESS attribute commit Convert prelimary reference tracking to use rbtrees (prep work for better extent reference tracking) commit Deprecate userspace transaction ioctls commit

EXT4 Scalability improvements when allocating inodes commit Backward compatibility support for Lustre ea_inode implementation commit

XFS Disable per-inode DAX flag, as it can crash commit

F2FS Support F2FS_IOC_FS{GET,SET}XATTR commit Support inode checksum commit Introduce discard_granularity sysfs entry commit Support project quota commit Support journalled quota commit Expose features to sysfs entry commit or via ioctl commit Add app/fs io stat commit Enhance on-disk inode structure scalability commit Introduce gc_urgent mode for background GC commit

CIFS Enable xattr support on SMB2+ commit, commit SMB3: Add support for multidialect negotiate (SMB2.1 and later) commit

SQUASHFS Add zstd support (FEATURED) commit

AUTOFS4 Make dev ioctl version and ismountpoint user accessible commit Make disc device user accessible commit



4. Memory management

Heterogeneous Memory Management (FEATURED) commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

Second step of Transparent Huge Page swap optimization. In the first step, the splitting huge page is delayed from almost the first step of swapping out to after allocating the swap space for the THP and adding the THP into the swap cache. In the second step, the splitting is delayed further to after the swapping out finished. Swap out throughput of THP improves 42% in some benchmarks commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

Virtual memory based swap readahead. The traditional approach is readahead based on the placement of pages in the swap device; this release does swap readahead based on the placement of swapped pages in virtual memory. This approach causes extra overhead in traditional HDDs, which is why it's only enabled for SSDs. A sysfs knob, /sys/kernel/mm/swap/vma_ra_enabled , has been added that allows to enable it manually; swap readahead statistics are also available commit, commit, commit, commit, commit

percpu: replace percpu area map allocator with bitmap allocator. There now exist use cases that allocate a million or more objects, which made the previous implementation inadequate commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

Memory hotplug: remove zone restrictions and allow explicit onlining type on any memblock, regardless of the physical adress commit, commit

Separate NUMA statistics from zone statistics for improved scalability commit, commit, commit

Transparent huge pages migration without breaking the huge page first commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

hugetlb: when clearing a huge page from the begin to the end, it is possible that the begin of the huge page is evicted from the CPU cache, and it is possible for the application to access the begin of the huge page after clearing the huge page. This release clears the huge page from the end to the beginning commit

madvise(2): introduce MADV_WIPEONFORK , which result in a memory area being empty in the child process after fork. It differs from MADV_DONTFORK in that if a child process accesses memory that was MADV_WIPEONFORK , it will get zeroes, but the address ranges are still valid. It only works on private, anonymous VMAs. It is similar to the OpenBSD minherit syscall with MAP_INHERIT_ZERO commit, commit

swap: choose swap device according to numa node to improve performance commit

shmem: add hugetlbfs support to memfd_create(2) , adding a new flag, MFD_HUGETLB . It is useful for the Oracle garbage collection commit

Add /proc/pid/smaps_rollup , a new proc file. Some systems (eg Android) regularly samples the memory usage in /proc/pid/smaps to determine aggregate memory statistics (e.g., total PSS) of a process. For very large processes, that can be too slow, as printing the information in /proc/pid/smaps can be too slow. The new file contains most of the fields of /proc/pid/smaps , but instead of a set of fields for each VMA, it contains one synthetic smaps-format entry representing the whole process. In the single smaps_rollup synthetic entry, each field is the summation of the corresponding field in all of the real-smaps VMAs. The same format is preserved so thatuserspace parsers can repurpose parsers with minimal fuss commit

SLUB: add free list pointer obfuscation inspired from PaX. It adds nearly zero overhead and frustrates the very common heap overflow exploitation method of overwriting freelist pointers commit

SLUB: add a naive detection of double free or corruption similar to "fasttop" check in GNU C Library allocator commit

userfaultfd: enable zeropage support for shmem commit, commit, commit, commit, commit, commit, commit

userfaultfd: allow to request for a signal to the faulting process, instead of the page-fault event. Dealing with page-fault event using a monitor thread can be an overhead in these cases commit

userfaultfd: provide pid in userfault msg, it could be useful for calculating downtime during postcopy live migration per vCPU commit, commit

zRam: support writing incompressible pages to disk commit, commit, commit, commit, commit, commit, commit, commit, commit

z3fold: use per-cpu unbuddied lists for improved scalability commit

5. Block layer

Add a DAX common 4k zero page commit, commit, commit, commit, commit

blktrace: Support for cgroup info commit, commit

bfq: boost throughput with flash-based non-queueing devices commit

Device Mapper: dm integrity: count and display checksum failures commit

md: Support for multiple partial parity logs commit, commit

loop: add ioctl for changing logical block size commit

drbd: new disk-option disable-write-same commit

null_blk: add configfs interface commit, add interface to power on disk commit, badbblocks support commit, bandwidth control commit, emulate cache commit, support discard commit, support memory backed store commit

skd: Convert to blk-mq commit, remove SG IO support commit

6. Tracing, perf and BPF

perf Record the branch type and then show statistics and info about in callchain entries. A new option save_type is added in --branch-filter option for perf record. It is also possible now for --branch-history to work without callgraphs commit, commit, commit, commit, commit, commit, commit, commit Add the new sample type for physical address to allow the tracing/profiling of physical memory addresses (with new option --phys-data ), where the PMU supports it commit, commit, commit, commit, commit Implement a visual marker for fused x86 instructions in the annotate TUI browser, available now in 'perf report' commit, commit Export some PMU capability details in the new /sys/bus/event_source/devices/cpu/caps/ sysfs directory commit Add initial support for namespaces, using setns to access files in namespaces, grabbing their build-ids, etc commit, commit, commit, commit, commit pipe mode: process tracing data in 'perf annotate' pipe mode commit Add header record types to pipe-mode commit, commit perf annotater: Support --show-nr-samples option commit, commit perf annotate browser: Circulate percent, total-period and nr-samples view commit perf buildid-cache: Cache debuginfo commit perf report: Enable finding kernel inline functions commit perf script: Add support for exporting to sqlite3 commit perf trace: Support syscall name globbing commit, commit perf tools: Add support for printing new mem_info encodings commit

BPF Add support for sys_enter_* and sys_exit_* tracepoints commit Allow selecting numa node during map creation commit, commit Add new jump instructions ( BPF_J{LT,LE,SLT,SLE ) to eBPF in order to reduce register pressure by avoiding BPF_J{GT,GE,SGT,SGE } rewrites and result in shorter BPF programs, less stack usage and less verification complexity commit, commit, commit, commit, commit, commit, commit, commit, commit Add bpf device maps and XDP_REDIRECT, which can be used to build arbitrary switching frameworks using XDP commit, commit, commit, commit, commit, commit, commit, commit, commit Implements a sockmap and socket redirect helper using a model similar to XDP netdev redirect. A sockmap is a BPF map type that holds references to sock structs. Then with a new sk redirect bpf helper BPF programs can use the map to redirect skbs between sockets. To use this infrastructure a new BPF program BPF_PROG_TYPE_SK_SKB is added that allows users to reference sock details, such as port and ip address fields, to build useful socket layer program commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit Add option to set mark and priority in addition to bound device for newly created sockets. Also, allow the bpf programs to use the get_current_uid_gid helper meaning socket marks, priority and device can be set based on the uid/gid of the running process commit, commit, commit, commit, commit, commit, commit



7. Virtualization

8. Security

seccomp Improved logging: admins can permit or quiet logging of specific seccomp actions; applications can request logging of all actions (except for RET_ALLOW ); it makesit possible for devsto request logging of specific syscalls commit, commit, commit, commit, commit, commit Implement SECCOMP_RET_KILL_PROCESS action ( SECCOMP_RET_KILL is aliased to SECCOMP_RET_KILL_THREAD ) commit, commit, commit, commit

Introduce v3 namespaced file capabilities that allows to change file capabilities inside a namespace, without leaking the capability outside of the namespace. For more information, read the recommended LWN article. commit

exec: Use sane stack rlimit under secureexec commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

AppArmor Add mediation of mountpoints and signals commit, commit Add support for absolute root view based labels commit Add base infastructure for socket mediation commit

Selinux Generalize support for NNP/nosuid SELinux domain transitions commit Allow per-file labeling for cgroupfs commit

audit: Reduce overhead using a coarse clock commit

Extract early boot entropy from the passed cmdline commit

9. Networking

Introduce zerocopy socket send flag MSG_ZEROCOPY (FEATURED) commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

Support RX checksum with IPsec crypto offload for esp4/esp6 commit, commit

Generic Routing Encapsulation: Add ERSPAN type II tunnel support. One of the purposes is for Linux box to be able to receive ERSPAN monitoring traffic sent from the Cisco switch, by creating a ERSPAN tunnel device. In addition, the patch also adds ERSPAN TX, so Linux virtual switch can redirect monitored traffic to the ERSPAN tunnel device commit

IPv6 Segment Routing Add support for advanced local segment processing, as specified in most recent specifications of IPv6 SR commit, commit, commit, commit, commit Support encapsulation of IPv4 packets commit Implements the T.Encaps.L2 SR function, enabling to encapsulate an L2 Ethernet frame within an IPv6+SRH packet commit Update the seg6local lightweight tunnel, and mainly implement four new actions: End.T, End.DX2, End.DX4 and End.DT6 commit, commit, commit

sched actions: improve dump performance by adding support for filtering based on time since last used commit, commit, commit, commit

NCSI: VLAN Filtering Support commit

unix sockets: drop obsolete fd-recursion limits. All unix sockets now account inflight FDs to the respective sender. There is no known way for a local user to exceed those limits or exploit the accounting commit

UDP: Allow to switch off UDP-based tunnel offloads per device commit, commit, commit, commit, commit, commit

Distributed Switch Architecture: learning static FDB entries via the switchdev notification chain rather then by using bridge bypass SELF flag commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

IPv6: optimization: avoid overhead when no custom FIB rules are installed commit

IPv6: Add sysctl for per namespace flow label reflection commit

Allow IPsec GSO for local sockets commit

Allow generic XDP to work on virtual devices commit

Network Service Header (NSH) is a new protocol for service function chaining, it can be handled as a L3 protocol like IPv4 and IPv6; Eth + NSH + Inner packet or VxLAN-gpe + NSH + Inner packet are two typical use cases commit, commit, commit, commit

Infiniband RDMA Netlink Device Client, needed to properly integrate coming RDMAtool into iproute2 package which is based on netlink commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit New ioctl API for the RDMA ABI merge, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit cma: Set default gid type to RoCEv2 commit Add support for RoCEv2 multicast commit, commit, commit Hardware tag matching support commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit ipoib: Enable ioctl for to IPoIB rdma netdevs commit

ethtool: add support for forward error correction mode setting on a link commit

geneve: add rtnl changelink support commit

macvlan: add offload features for encapsulation commit

tap: XDP support commit

netfilter netfilter: nf_tables: support for recursive chain deletion commit, commit, commit xt_hashlimit: add rate match mode that allows matching on the current packet/byte rate without rate limiting. The main difference between the existing algorithm and the new one is that the existing algorithm rate-limits the flow whereas the new algorithm classifies the flow based on whether it is above or below a certain rate commit nftables: tcp mss mangling support commit, commit, commit, commit nftables: Attach process info to NFT_MSG_NEWGEN notifications, this is helpful for 'nft monitor' to track which process caused a given change to the ruleset commit nftables: add FIB expression to the netdev table. The lookup will be delegated to the IPv4 or IPv6 FIB depending on the protocol of the packet commit nft_limit: Add a stateful limit named object type, this allows to create limit policies that you can identify via name commit

TCP Add software rx timestamp for TCP commit Add related fields into SCM_TIMESTAMPING_OPT_STATS control msg commit Adjust tail loss probe timeout commit Remove prequeue support commit, commit Remove unused mib counters commit tcp_diag: report TCP MD5 signing keys and addresses commit

Transformation (xfrm) Support setting an output mark. On systems that use mark-based routing (eg Android) it may be necessary for routing lookups to use marks in order for packets to be routed correctly commit Add support for network devices capable of removing the ESP trailer commit Remove flow cache (no longer needed) commit Add xdst pcpu cache commit

irda: move to staging, will be removed in future releases commit, commit, commit

Remove software UDP fragmentation offload code. gives little other than bugs commit, commit, commit, commit

10. Architectures

ARM eBPF JIT compiler commit crypto: ghash: add NEON accelerated fallback for vmull.p64 commit coresight tmc: Add support for Coresight SoC 600 components commit, commit Device Tree Sources (both 32 and 64 bit) Renesas R-Car D3 (R8A77995) commit TI DT76x commit, commit MediaTek mt2712e commit Qualcomm IPQ8074 commit Marvell Armada 8080 commit Uniphier PXs3 commit TI AM335x Moxa UC-8100-ME-T open platform commit TI AM57xx Beaglebone X15 Rev C commit Microchip/Atmel sama5d27 SoM1 EK commit, commit Broadcom Raspberry Pi Zero W commit Gemini-based D-Link DIR-685 router commit Toradex Apalis module + Apalis and Ixora carrier boards commit, commit Freescale i.MX53-based Beckhoff CX9020 Embedded PC commit Mediatek mt7623-based BananaPi R2 commit, commit Bananapi M3, M2M and M64 commit, commit NanoPi A64 commit A64-OLinuXino commit Rockchip RK3329 Pine64/Rock64 board support commit Haikou baseboard with RK3399-Q7 SoM commit RK3399 Sapphire module on Excavator carrier (RK3399 reference design) commit, commit Theobroma Systems RK3399-Q7 SoM commit ZTE ZX296718 PCBOX Board commit BCM53573: Add Broadcom BCM947189ACDBMR board support commit a64: add DTSI file for AXP803 PMIC commit Add dts file for MT7622 reference board variant 1 commit, commit renesas: Add Renesas Draak board support commit dts: uniphier: remove sLD3 SoC support commit

ARM64 VMAP_STACK support, allowing the kernel stacks to be allocated in the vmalloc space with a guard page for trapping stack overflows commit, commit Initial support for persistent memory on ARM: DC CVAP instruction exposed to user space (HWCAP) and the in-kernel pmem API implemented commit, commit, commit Support mremap() for vDSO commit perf: add support for Cortex-A35 commit, add support for Cortex-A73 commit perf: Allow more than one cycle counter to be used commit crypto Add non-SIMD generic fallback for crct10dif commit, aes-ce-cipher commit, aes-blk, commit, ghash-ce commit, arm64/sha2-ce commit, sha1-ce commit, aes-bs commit, aes-ce-ccm commit, crc32 commit gcm: implement native driver using v8 Crypto Extensions commit ghash - add NEON accelerated fallback for 64-bit PMULL commit raid6: use faster multiplication for ARM NEON delta syndrome commit, implement recovery using ARM NEON intrinsics commit

X86 Enable PCID optimized TLB flushing on newer Intel CPUs (FEATURED) commit, commit, commit, commit, commit, commit, commit, commit Add 5-level paging support (FEATURED) commit, commit, commit, commit Add 'encrypted memory' support, which is a new hardware feature on upcoming AMD CPUs ('Secure Memory Encryption', SME) (FEATURED) commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit Add the ORC unwinder and asm code unwind hints commit, commit Implement fast refcount overflow protection. It does not have a noticeable performance impact, but it doesn't have the fuller checking either commit Complete rewrite of the Cache Quality Monitoring (CQM) facility. The CQM support has been integrated into the Resource Director Technology (RDT) facility, which is the obvious choise as in hardware CQM is part of RDT. This allowed to add Memory Bandwidth Monitoring support on top commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit intel_th: Add Cannon Lake PCH-LP support commit, add Cannon Lake PCH-H support commit, add Cedar Fork PCH support commit, add Lewisburg PCH support commit intel_rdt: Add command line options for resource director technology commit, turn off most RDT features on Skylake commit Remove lguest support commit KVM Add 5 level EPT & Shadow page table support commit SVM: Enable Virtual GIF feature commit Add spinlock optimization framework commit hyperv: Hyper-V TSC frequency MSRs commit nVMX: emulate EPTP switching VMFUNC commit, commit, commit nVMX: nested INVPCID support commit nVMX: Add support for fast unprotection of nested guest page tables commit hyper-v Implement rep hypercalls commit Introduce fast hypercall implementation commit Use hypercall for remote TLB flush commit perf vendor events: Add Skylake server event list commit, commit

MIPS Device Tree Source NI 169445 board support commit ralink: Add Mediatek MT7628A SoC commit Add Vocore2 board commit Add Onion Omega2+ board commit Add DWARF unwinding to assembly commit math-emu: Add severak FP emu debugfs statistics commit, commit, commit CPS: Detect CPUs in secondary clusters commit CPS: Cluster support for topology functions commit bpf: Implement JLT, JLE, JSLT and JSLE ops in the eBPF JIT commit Remove unused R6000 support commit

PARISC Add support for self-extracting kernel commit, commit Enable UBSAN support commit PDT: Add full support for memory failure via Page Deallocation Table (PDT) commit, commit lantiq: Add a GPHY driver which uses the RCU syscon-mfd commit Add HWPOISON page fault handler code commit

POWERPC perf: access via perf to a new type of PMU (IMC) on Power9, which can count both core events as well as nest unit events (Memory controller etc) commit, commit, commit, commit perf vendor events: Add POWER9 PMU events commit Size of vmalloc area is increased to 56T on 64-bit hash MMU systems. This avoids problems with the percpu allocator on systems with very sparse NUMA layouts commit random: Use darn instruction for get_random_seed() on Power9 commit Add support for powercap framework commit, add support to clear sensor groups data commit, support to set power-shifting-ratio commit Implement STRICT_KERNEL_RWX on PPC32 commit hugetlb: Add support for reserving gigantic huge pages via kernel command line commit Enable removal of memory for use in memory tracing commit Add Power9 scheduler topology, to capture the fact that pairs of cores may share an L2 cache commit Power9 support for VAS, which is a new mechanism for accessing coprocessors, and initial support for using it with the NX compression accelerator commit, commit, commit, commit, commit, commit, commit, commit Add emulation for the addpcis instruction commit Support for guests under PowerVM to use the Power9 XIVE interrupt controller commit Enable PCI peer-to-peer commit KVM: Book3S HV: Report storage key support to userspace commit xmon: Add ISA v3.0 SPRs to SPR dump commit, add AMR, UAMOR, AMOR, IAMR to SPR dump commit

S390 Add support for IBM z14 machines commit Add IBM z14 TLB flushing improvements for KVM guests commit, commit Add support for the TOD clock epoch extension commit Add NIAI spinlock hints for IBM z14 commit KVM Multiple Epoch Facility support commit Support Configuration z/Architecture Mode commit topology: enable/disable dynamically commit vmcp: make use of contiguous memory allocator commit dasd: Add discard support for FBA devices commit, blk-mq conversion commit, add average request times to dasd statistics commit

SPARC Add 16GB hugepage support commit Use register window state adjustment instructions when available commit Add VCC console concentrator driver commit Support cpu 'poke' hypercall commit Optimized memcpy, memset, copy_to_user, copy_from_user for M7/M8 commit

ARC Initial port for HSDK board commit plat-eznps: new command line argument for HW scheduler at MTM commit



11. Drivers

11.1. Graphics

Enhanced syncobj APIs (wait/signal/reset/create signalled), useful for Vulkan commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

dma-buf/sync_file: Allow multiple sync_files to wrap a single dma-fence commit

Add YCBCR 4:2:0 support commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

Format modifier/blob plane property added commit

atomic: initial support for asynchronous plane update commit

bridge Add Synopsys Designware MIPI DSI host bridge driver commit

tiny Add Pervasive Displays RePaper displays commit Add support for LEGO MINDSTORMS EV3 LCD commit

i915 Lots of GEN10/CNL support patches Add support for drm syncobjs commit GVT vGPU 48-bit ppgtt support commit GVT performance improvements commit, commit NOA change ioctl commit CCS (color compression) scanout support commit, commit, commit, commit, commit GPU reset improvements commit, commit Let user specify override VBT via firmware load commit debugfs: Export per-engine reset count info to debugfs commit, report execlists irq bit in debugfs commit, add slice and subslice information to debugfs commit

amdgpu Initial hugepage support commit, commit Vega10 improvements Command submission overhead improvements commit amdgpu: Disabling Power Gating for Stoney platform commit powerplay: add CZ profile support commit powerplay: add avfs profiling_info_v4_2 support on Vega10 commit, add profile mode for vega10 commit, add support for 3DP 4K@120Hz on vega10 commit, added didt support for vega10 commit, enable ACG feature on vega10 commit Reduce internal gart to 256M (this does not affect the ttm GTT pool size) commit Add new gttsize module parameter to configure the size of the GTT domain commit Expose VM fragment size as module parameter commit Add vis_vramlimit module parameter to Restrict visible VRAM for testing commit Add sdma_phase_quantum module parameter to make SDMA phase quantum configurable commit

amdkfd Add new IOCTL to set a Scratch memory VA commit Support image tiling mode commit

nouveau GP108 modesetting support commit Allow temperature readouts on maxwell2 GPUs commit

vmwgfx Add fence fd support commit, commit

msm Add modeset module param commit

exynos NV12MT support commit

tegra PRIME mmap support commit Support render node commit

sun4i hdmi: Implement I2C adapter for A10s DDC bus commit HDMI CEC support commit

omapdrm Support for HDMI hot plug detection commit, commit, commit OMAP5 DSI supportcommit

stm Add STM32 DSI controller driver commit ltdc: Add panel-bridge support commit

dw_hdmi Add support for Rockchip RK3399 commit HDMI CEC support commit

atmel-hlcdc Add 8-bit color support commit

vc4 New ioctl to attach a label to a buffer object commit HDMI CEC support commit, commit Allow userspace to dictate rendering order on submit ioctl commit

fbcon: Make fbcon a built-time depency for fbdev commit

fbcon: add fbcon=margin:<color> command line option commit

11.2. Storage

ata: mediatek: add support for MediaTek SATA controller commit

cs5536: add support for IDE controller variant commit

nvme Add support for FW activation without reset commit Add support for NVMe 1.3 Timestamp Feature commit pci: implement the HMB entry number and size limitations commit

SCSI hisi_sas: add v2 hw DFX feature commit hisi_sas: support zone management commands commit hpsa: add support for legacy boards commit lpfc: Add Buffer to Buffer credit recovery support commit qla2xxx: Add LR distance support from nvram bit commit qla2xxx: Add ability to autodetect SFP type commit qla2xxx: Add support for minimum link speed commit qla2xxx: Enable Async TMF processing commit smartpqi: add in new controller ids commit smartpqi: add pqi reset quiesce support commit Show .retries and .jiffies_at_alloc in debugfs commit cciss: Drop obsolete driver commit



11.3. Drivers in the Staging area

Add driver for Realtek RTL8822BE 802.11ac PCIe wireless network adapters commit, commit, commit, commit, commit, commit, commit

typec: fusb302: Add support for USB2 charger detection through extcon commit

media: cxd2099: Add module parameter for buffer mode commit

pi433: New driver commit

11.4. Networking

Bluetooth Add support of 13d3:3494 RTL8723BE device commit btusb: Add support of all Foxconn (105b) Broadcom devices commit btusb: add ID for LiteOn 04ca:3016 commit hci_bcm: Add serdev support commit

Infiniband mlx4: Add resource utilization support commit hfi1: Add 16B RC/UC support commit, add 16B UD support commit, add 16B trace support commit, add support to process 16B header errors commit, add support to receive 16B bypass packets commit, add support to send 16B bypass packets commit, add kernel receive context info to debugfs commit mlx4: Add inline-receive support commit, add support for RSS QP commit, add support for WQ indirection table related verbs commit, add support for WQ related verbs commit, dd user mac FW update support commit mlx5: Add debug control parameters for congestion control commit, add delay drop configuration and statistics commit, add multicast flow steering support for underlay QP commit, add raw ethernet local loopback support commit, add support for QP with a given source QPN commit, add support for multi underlay QP commit, add support to dropless RQ commit, add raw ethernet local loopback firmware command commit, separate between E-Switch and MPFS commit, commit, add PCIe outbound stalls counters infrastructure commit mlx5e: Add PCIe outbound stalls counters commit, add RX buffer fullness counters commit, add outbound PCI buffer overflow counter commit, enable local loopback in loopback selftest commit, IPoIB, Add support for get_link_ksettings in ethtool commit, support RSS for GRE tunneled packets commit, support TSO and TX checksum offloads for GRE tunnels commit qedr: notify user application if DPM is supported commit, notify user application of supported WIDs commit vmw_pvrdma: Add RoCEv2 support commit

amd-xgbe: Add additional ethtool statistics commit, add hardware features debug output commit, add per queue Tx and Rx statistics commit, add support for VXLAN offload capabilities commit, add support to handle device renaming commit

aquantia: Switch to use napi_gro_receive commit

ath10k: add initial USB support commit, add tdls support for 10.4 firmwares commit, add queue restarts stats counter commit

ath9k: Add Dell Wireless 1802 with wowlan capability commit

bnxt: Add PCIe device IDs for bcm58802/bcm58808 commit, allow the user to set ethtool stats-block-usecs to 0 commit, implement ndo_bridge_{get|set}link methods commit, add TC flower offload flow_alloc/free FW cmds commit, add code to query TC flower offload stats commit, add support for port_attr_get and and get_phys_port_name commit, add support to enable VF-representors commit, add vf-rep RX/TX and netdev implementation commit, add TC flower filter offload support commit

brcmfmac: Add support for CYW4373 SDIO/USB chipset commit

cxgb4: core hardware/firmware support for Forward Error Correction on a link commit, ethtool forward error correction management support commit

dpaa_eth: enable Rx hashing control commit

usb: add device id for TP-LINK UE300 USB 3.0 Ethernet commit

qualcomm: rmnet: Initial implementation commit

e1000e: Initial Support for IceLake commit

fsl/fman: enable FMan Keygen commit

hv_netvsc: Add ethtool handler to set and get UDP hash levels commit

i40e/i40evf: support for VF VLAN tag stripping control commit

ibmvnic: Implement ethtool .get_channels commit, .get_ringparam commit, implement per-queue statistics reporting commit

igb: support BCM54616 PHY commit

iwlwifi: add support of FPGA fw commit, add new PCI ID for 7265D commit, mvm: add debugfs to force CT-kill commit

ixgbe: add initial support for xdp redirect commit

liquidio: added support for ethtool --set-channels feature commit, added support for ethtool --set-ring feature commit, support new firmware statistic fw_err_pki commit

mlxsw Support for IPv6 Unicast routes offload merge, merge Add IPv4 host dpipe table merge, merge Offloading matches on ip ttl and tos commit, commit, commit, commit, commit, commit Offloading GRE tunnels merge Traps enhancements merge spectrum: Introduce multichain TC offload merge Add IPv6 host dpipe table merge Add IPv4 host dpipe table merge

mvneta: Driver and hardware supports IPv6 offload, so enable it commit

hinic: Initialize hw interface commit

mediatek: add support for MediaTek MT7622 SoC commit

arc_emac: Add support for ndo_do_ioctl net_device_ops operation commit

dsa: mv88e6xxx: add Energy Detect ops commit

stmmac: dwmac-rk: Add rv1108 gmac support commit, add Adaptrum Anarion GMAC glue layer commit, dwmac-rk: Add RK3128 GMAC support commit

fec: Allow reception of frames bigger than 1522 bytes commit

hns3: Add driver for Hisilicon HNS3 HCLGE Acceleration Engine & Compatibility Layer and Hisilicon HNS3 Ethernet Device Support commit, commit, commit, commit, commit, commit, commit, commit, commit

hns: Add self-adaptive interrupt coalesce support in hns driver commit

mvpp2: add support for TX interrupts and RX queue distribution modes commit, software tso support commit

phy: Add rockchip PHY driver support commit

phy: add I2C mdio bus commit

qcom/emac: add software control for pause frame mode commit

qualcomm: rmnet: Implement ndo_get_iflink commit

netvsc: allow controlling send/recv buffer size commit, transparent VF management commit

nfp: add basic SR-IOV ndo functions commit, add ethtool statistics for representors commit, report MAC statistics in ethtool commit

phylink: add in-band autonegotiation support for 10GBase-KR mode commit, add module EEPROM support commit, add phylink infrastructure commit, add support for MII ioctl access to Clause 45 PHYs commit

qed: Add setter APIs support for RX flow classification commit, add support for Energy efficient ethernet commit, add support for vf coalesce configuration commit

qede: Add ethtool support for Energy efficient ethernet commit, add getter APIs support for RX flow classification commit

qtnfmac: implement cfg80211 channel_switch handler commit, implement cfg80211 dump_survey handler commit, implement reporting current channel commit, implement scan timeout commit, introduce counter for Rx underflow events commit

r8152: add Linksys USB3GIGV1 id commit

ravb: add wake-on-lan support via magic packet commit

rndis_host: support Novatel Verizon USB730L commit

rsi: support legacy power save, U-APSD, rf-kill and AP mode commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

sfc: Add ethtool -m support for QSFP modules commit, add SFP module support commit, add sfp-bus to bridge between network devices and sfp cages commit

sunvnet: add support for IPv6 checksum offloads commit

wil6210: add statistics for suspend time commit, support FW RSSI reporting commit

11.5. Audio

firewire-motu: add support for MOTU Audio Express commit

hda: Implement mic-mute LED mode enum commit, realtek - Enable jack detection function for Intel ALC700 commit, add Cannonlake PCI ID commit, realtek - Add support for ALC236/ALC3204 commit

ice1712: Add support for STAudio ADCIII commit

ASoC Intel: Add Kabylake machine driver for RT5663 commit, Headset button support in kabylake machine driver commit, add Geminilake platform support commit Intel: cannonlake: Add support commit, commit, commit, commit Intel: kbl: Add Multi-Playback & Echo-reference commit, commit, commit tlv320aic32x4: Add support for tlv320aic32x6 commit codecs: add wm8524 codec driver commit codecs: msm8916-wcd-analog: add MBHC support commit cs43130: Add support for CS43130 codec commit cygnus: Add support for 384kHz frame rates commit qcom: apq8016-sbc: Add support to Headset JACK commit rockchip: Add support for DMIC codec commit, add support for DP codec commit rt274: add acpi id commit, add rt274 codec driver commit rt5514: Add the I2S ASRC support commit, support the DSP recording continuously after the hotwording triggered commit, support the TDM docking mode commit samsung: i2s: Support more resolution rates commit sun4i-i2s: Add support for H3 commit tlv320aic3x: Support for OCMV configuration commit



11.6. Tablets, touch screens, keyboards, mouses

axp20x-pek: add support for AXP221 PEK commit

PS/2 gpio bit banging driver for serio bus commit

atmel_mxt_ts: add support for reset line commit

elan_i2c: support touchpads with two physical buttons commit

Add power key driver for Rockchip RK805 PMIC commit

Add a driver for PWM controllable vibrators commit

goodix: add support for capacitive home button commit

HID multitouch: Support Asus T304UA media keys commit multitouch: support buttons and trackpoint on Lenovo X1 Tab Gen2 commit input: map digitizer battery usage commit asus: Add T100CHI bluetooth keyboard dock special keys mapping commit, add support for T100 touchpad commit, add T100CHI bluetooth keyboard dock touchpad support commit



11.7. TV tuners, webcams, video capturers

v4l: Add packed Bayer raw12 pixel formats commit

Added support for the TerraTec T1 DVB-T USB tuner [IT9135 chipset] commit

adv7180: add missing adv7180cp, adv7180st i2c device IDs commit

camms: Qualcom camss driver commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

cec-pin: add low-level pin hardware support commit

coda: add h264 and mpeg4 profile and level controls commit

ddbridge: Kconfig option to control the MSI modparam default commit, support MaxLinear MXL5xx based cards (MaxS4/8) commit, support for CineS2 V7(A) and DuoFlex S2 V4 hardware commit

stv0910: add multistream (ISI) and PLS capabilities commit

MaxLinear MxL5xx DVB-S/S2 tuner-demodulator driver commit

Add ST STV0910 DVB-S/S2 demodulator frontend driver commit

Add ST STV6111 DVB-S/S2 tuner frontend driver commit

i2c: Add Omnivision OV5670 5M sensor support commit

i2c: adv748x: add adv748x driver commit

omap3isp: add CSI1 support commit

ov5645: Add control to export CSI2 link frequency commit, add control to export pixel clock frequency commit

Add Amlogic Meson AO CEC Controller driver commit

remote control add zx-irdec remote control driver commit gpio-ir-tx: add new driver commit mtk-cir: add support for MediaTek MT7622 SoC commit pwm-ir-tx: add new driver commit

s5p-jpeg: Add support for resolution change event commit, decode 4:1:1 chroma subsampling format commit

smiapp: add CCP2 support commit

Add support for CSI-1 and CCP2 busses commit

vsp1: Add pipe index argument to the VSP-DU API commit, add support for header display lists in continuous mode commit, add support for multiple DRM pipelines commit, add support for multiple LIF instances commit, add support for new VSP2-BS, VSP2-DL and VSP2-D instances commit, add support for the BRS entity commit

11.8. Universal Serial Bus

serial: option: add support for D-Link DWM-157 C1 commit

chipidea: Add support for Tegra20/30/114/124 commit

gadget: add RNDIS configfs options for class/subclass/protocol commit, f_hid: {GET,SET} PROTOCOL Support commit, f_midi: add super speed support commit, udc: renesas_usb3: add support for R-Car M3-W commit, renesas_usb3: add debugfs to set the b-device mode commit, renesas_usb3: add support for R-Car H3 ES2.0 commit

xhci: rcar: Add support for R-Car H3 ES2.0 commit

mtu3: add a vbus debugfs interface commit

phy: Add USB charger support commit

xhci: Support enabling of compliance mode for xhci 1.1 commit

11.9. Serial Peripheral Interface (SPI)

loopback-test: implement testing with no CS commit

11.10. Watchdog

octeon-wdt: Add support for 78XX SOCs commit

octeon-wdt: Add support for cn68XX SOCs commit

11.11. ACPI, EFI, cpufreq, thermal, Power Management

efi: Enable reset attack mitigation commit

ACPI Prefer suspend-to-idle over S3 on some systems that do not work well commit Support Apple _DSM properties commit Recognize Apple SPI and I2C slaves commit Extend ACPI sysfs to provide access to boot error region commit Add support for the SDEI table commit

cpufreq intel_pstate: Do not use PID-based P-state selection commit, improve IO performance with per-core P-states commit governor: Drop min_sampling_rate commit dbx500: Delete obsolete driver commit

libnvdimm, nfit: export an 'ecc_unit_size' sysfs attribute commit

pm-graph: AnalyzeBoot v2.1 commit, AnalyzeSuspend v4.7 commit

thermal int3400_thermal: process "thermal table changed" event commit mediatek: add Mediatek thermal driver for mt2712 commit rockchip: Support the RK3328 SOC in thermal driver commit uniphier: add UniPhier thermal driver commit



11.12. Real Time Clock (RTC)

Add Realtek RTD1295 commit

ds1307: add basic support for ds1341 chip commit

goldfish: Add RTC driver for Android emulator commit

m41t80: remove debug sysfs attribute commit

s35390a: implement ioctls commit

sun6i: Add support for the external oscillator gate commit

11.13. Voltage, current regulators, power capping, power supply

power/supply: Add support for MAX1721x standalone fuel gauge commit bq24190_charger: Add power_supply_battery_info support commit bq27xxx: Add chip IDs for previously shadowed chips commit ltc2941-battery-gauge: Add LTC2942 support commit ltc2941-battery-gauge: Add LTC2944 support commit

power: wm831x_power: Support USB charger current limit management commit

regulator Add support for stm32-vrefbuf commit mt6380: Add support for MT6380 commit rk808: Add regulator driver for RK805 commit rn5t618: add RC5T619 PMIC support commit



11.14. Pin Controllers (pinctrl)

Add pinctrl driver for the RK805 PMIC commit

add a Gemini SoC pin controller commit

aspeed: g4: Add USB device and host support commit, g5: Add USB device and host support commit

imx: add imx7ulp driver commit

intel: Add Intel Cannon Lake PCH-H pin controller support commit, add Intel Denverton pin controller support commit, add Intel Lewisburg GPIO support commit

rockchip: Add rk3128 pinctrl support commit

sh-pfc: Initial R8A77995 PFC support commit

sprd: Add Spreadtrum pin control driver commit

sunxi: add support of R40 to A10 pinctrl driver commit

uniphier: add UniPhier PXs3 pinctrl driver commit

11.15. Multi Media Card (MMC)

renesas-sdhi: add support for R-Car Gen3 SDHI DMAC commit

dw_mmc-k3: add sd support for hi3660 commit

sdhci-xenon: Support HS400 Enhanced Strobe feature commit

sunxi: Add support for A83T eMMC (MMC2) commit

host: Add CQE interface commit

11.16. Memory Technology Devices (MTD)

create per-device and module-scope debugfs entries commit

nand: hynix: add support for 20nm NAND chips commit

nand: qcom: Support for IPQ8074 QPIC NAND controller commit, support for IPQ4019 QPIC NAND controller commit

spi-nor: add support for Microchip sst26vf064b QSPI memory commit, Add support for Intel Denverton SPI serial flash controller commit

11.17. Industrial I/O (iio)

Add LTC2471/LTC2473 driver commit

accel: st_accel_spi: add support to H3LIS331DL, LIS331DL, LIS3LV02DL commit

adc: Add support for DLN2 ADC commit

adc: New driver for Cirrus Logic EP93xx ADC commit

adc: at91-sama5d2_adc: add hw trigger and buffer support commit

adc: stm32: add optional st,min-sample-time-nsecs commit, add support for lptimer triggers commit

adc:ltc2497: Add support for board file based iio consumer mapping commit

adc: ti-ads1015: add threshold event support commit

chemical: ccs811: Add support for AMS CCS811 VOC sensor commit, add triggered buffer support commit

counter: Add support for STM32 LPTimer commit

dac: stm32: add support for stm32f4 commit

humidity: hts221: support active-low interrupts commit, support open drain mode commit

imu: st_lsm6dsx: support open drain mode commit

magnetometer: add support to LIS2MDL commit, ak8974: support AMI306 variant commit

srf08: add sensor type srf10 commit, add support for srf02 in i2c mode commit, add triggered buffer support commit

trigger: Add STM32 LPTimer trigger driver commit

trigger: stm32-timer: add support for STM32H7 commit

11.18. Multi Function Devices (MFD)

Add ROHM BD9571MWV-M MFD PMIC driver commit

Add STM32 LPTimer driver commit

axp20x: Add support for AXP813 PMIC commit

hi6421-pmic: Add support for HiSilicon Hi6421v530 commit

intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices commit

rk808: Add RK805 support commit

Add support for TPS68470 device commit

11.19. Pulse-Width Modulation (PWM)

Add STM32 LPTimer PWM driver commit

Add ZTE ZX PWM device driver commit

rockchip: Add rk3328 support commit

11.20. Inter-Integrated Circuit (I2C)

Add Intel Cherry Trail Whiskey Cove SMBUS controller driver commit

Add Spreadtrum I2C controller driver commit

altera: Add Altera I2C Controller driver commit

i2c-stm32f7: add driver commit

i801: Add support for Intel Cedar Fork commit

rk3x: add support for rv1108 commit

11.21. Hardware monitoring (hwmon)

aspeed-pwm-tacho) cooling device support commit

jc42: Add support for CAT34TS02C commit, add support for GT30TS00, GT34TS02, and CAT34TS04 commit

ltq-cputemp: add cpu temp sensor driver commit

pmbus: Add IBM Common Form Factor (CFF) power supply driver commit, add debugfs for status registers commit, add support for Intel VID protocol VR13 commit, add support for Texas Instruments tps53679 device commit, lm25066: Add support for TI LM5066I commit

da9052: Add support for TSI channel commit

11.22. General Purpose I/O (gpio)

vf610: add imx7ulp support commit

Add support for TPS68470 GPIOs commit

it87: add support for IT8772F Super I/O commit

Add gpio driver support for ThunderX and OCTEON-TX commit

11.23. Leds

as3645a: Add LED flash class driver commit

pca955x: add GPIO support commit

11.24. DMA engines

sun6i: support V3s SoC variant commit

Add driver for Altera / Intel mSGDMA IP core commit

bcm-sba-raid: Add debugfs support commit

ioatdma: Add intr_coalesce sysfs entry commit

dmatest: add support for memset test commit

11.25. Cryptography hardware acceleration

nx: Add P9 NX support for 842 compression engine commit

atmel-ecc - introduce Microchip / Atmel ECC driver commit

axis - add ARTPEC-6/7 crypto accelerator driver commit

brcm - Support more FlexRM rings than SPU engines commit

caam/jr - add support for DPAA2 parts commit

ccp - Add XTS-AES-256 support for CCP version 5 commit, add support for RSA on the CCP commit, introduce the AMD Secure Processor device commit

stm32 - Support for STM32 HASH module commit

sun4i-ss - support the Security System PRNG commit

csrypto: ccp - Expand RSA support for a v5 ccp commit

11.26. PCI

mediatek: Add controller support for MT2712 and MT7622 commit, add MSI support for MT2712 and MT7622 commit

rockchip: Add per-lane PHY support commit

qcom: Add support for IPQ8074 PCIe controller commit

DPC: Add eDPC support commit

layerscape: Add support for ls1088a commit, add support for ls2088a commit

11.27. Clock

sunxi-ng: Add interface to query or configure MMC timing modes commit, support R40 SoC commit, add sun4i/sun7i CCU driver commit

meson: gxbb-aoclk: Add CEC 32k clock commit

axs10x: introduce AXS10X pll driver commit

renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY commit, add support for SCCG/Clean peripheral clocks commit, cpg-mssr: Add R8A77995 support commit

ARC: clk: introduce HSDK pll driver commit

mb86s7x: Drop non-building driver commit

stm32h7: Add stm32h743 clock driver commit

at91: add audio pll clock drivers commit

imx-tpm: Add imx tpm timer support commit

11.28. Various

hwrng: mx-rngc - add a driver for Freescale RNGC commit

fpga manager: Add altera-ps-spi driver for Altera FPGAs commit

fpga manager: Add Altera CvP driver commit

iommu/mediatek: Add mt2712 IOMMU support commit

irqchip: Add UniPhier AIDET irqchip driver commit

irqchip/armada-370-xp: Enable MSI-X support commit

irqchip/gic-v3: Advertise GICv4 support to KVM commit

irqchip/ls-scfg-msi: Add LS1043a v1.1 MSI support commit, add LS1046a MSI support commit, add MSI affinity support commit

mailbox: bcm-flexrm-mailbox: Add debugfs support commit

MCB: add support for SC31 to mcb-lpc commit

libnvdimm, pfn, dax: show supported dax/pfn region alignments in sysfs commit

of: overlay: add overlay symbols to live device tree commit

phy: phy-mt65xx-usb3: add SATA PHY support commit

phy: qcom-qmp: Add support for IPQ8074 commit

phy: rockchip-inno-usb2: add support of usb2-phy for rv1108 SoCs commit

phy: phy-mt65xx-usb3: add PCIe PHY support commit

phy: sun4i-usb: Support A83T USB PHYs commit

phy: ralink-usb: add driver for Mediatek/Ralink commit

phy: add the mvebu cp110 comphy driver commit

phy: Add an USB PHY driver for the Lantiq SoCs using the RCU module commit

remoteproc: qcom: Add support for SSR notifications commit

remoteproc: imx_rproc: add a NXP/Freescale imx_rproc driver commit

reset: uniphier: remove sLD3 SoC support commit

ARC: reset: introduce HSDKv1 reset driver commit

reset: Add a reset controller driver for the Lantiq XWAY based SoCs commit

rpmsg: glink: Add announce_create ops and preallocate intents commit, add support for transport version negotiation commit, introduce glink smem based transport commit, add rx done command commit, add support for TX intents commit

soc: qcom: GLINK SSR notifier commit

soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC commit

soc: Add Amlogic SoC Information driver commit

spmi: pmic-arb: add support for HW version 5 commit

tty: serial: owl: Implement console driver commit

serial: stm32: add RTS support commit, add fifo support commit

Introduce 8250_men_mcb commit

tty: goldfish: Implement support for kernel 'earlycon' parameter commit

w1: add hwmon temp support for w1_therm commit, Add 1w slave driver for DS28E05 EEPROM commit

12. List of merges

13. Other news sites