Changes done in each Linux kernel release. Other places to get news about the Linux kernel are LWN kernel status, H-Online, or the Linux Kernel mailing list (there is a web interface in www.lkml.org). List of changes of older releases can be found at LinuxVersions. If you're going to add something here look first at LinuxChangesRules!
You can discuss the latest Linux kernel changes on the New Linux Kernel Features Forum.
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.
Contents
-
Prominent features
- Bigger memory limits
- Add support for AMD Secure Memory Encryption
- Better kernel traces with the ORC unwinder
- zstd compression in Btrfs and Squashfs
- Zero-copy from user memory to sockets
- Heterogeneous Memory Management for future GPUs
- Asynchronous buffered I/O support
- Better cpufreq coordination with SMP
- Control Groups thread mode
- Longer-lived TLB Entries with PCID
- Core (various)
- File systems
- Memory management
- Block layer
- Tracing, perf and BPF
- Virtualization
- Security
- Networking
- Architectures
-
Drivers
- Graphics
- Storage
- Drivers in the Staging area
- Networking
- Audio
- Tablets, touch screens, keyboards, mouses
- TV tuners, webcams, video capturers
- Universal Serial Bus
- Serial Peripheral Interface (SPI)
- Watchdog
- ACPI, EFI, cpufreq, thermal, Power Management
- Real Time Clock (RTC)
- Voltage, current regulators, power capping, power supply
- Pin Controllers (pinctrl)
- Multi Media Card (MMC)
- Memory Technology Devices (MTD)
- Industrial I/O (iio)
- Multi Function Devices (MFD)
- Pulse-Width Modulation (PWM)
- Inter-Integrated Circuit (I2C)
- Hardware monitoring (hwmon)
- General Purpose I/O (gpio)
- Leds
- DMA engines
- Cryptography hardware acceleration
- PCI
- Clock
- Various
- List of merges
- Other news sites
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
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
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
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
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
- 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
Add app/fs io stat commit
Enhance on-disk inode structure scalability commit
Introduce gc_urgent mode for background GC commit
- CIFS
- SQUASHFS
Add zstd support (FEATURED) commit
- AUTOFS4
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
bfq: boost throughput with flash-based non-queueing devices commit
Device Mapper: dm integrity: count and display checksum failures 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
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
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 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
XEN: introduce the frontend for the newly introduced PV Calls procotol commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
hv_sock: implements Hyper-V transport for Virtual Sockets (AF_VSOCK) commit
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
- Selinux
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
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
- 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)
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
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
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
- hyper-v
perf vendor events: Add Skylake server event list commit, commit
- MIPS
- Device Tree Source
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
- 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
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
- ARC
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
- i915
- Lots of GEN10/CNL support patches
Add support for drm syncobjs commit
GVT vGPU 48-bit ppgtt support commit
NOA change ioctl commit
CCS (color compression) scanout support commit, commit, commit, 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
- 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
- nouveau
- vmwgfx
- msm
Add modeset module param commit
- exynos
NV12MT support commit
- tegra
- sun4i
- omapdrm
- stm
- dw_hdmi
- atmel-hlcdc
Add 8-bit color support commit
- vc4
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
- 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
- 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
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
mvneta: Driver and hardware supports IPv6 offload, so enable it commit
hinic: Initialize hw interface 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
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
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
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
11.11. ACPI, EFI, cpufreq, thermal, Power Management
efi: Enable reset attack mitigation commit
- ACPI
- cpufreq
libnvdimm, nfit: export an 'ecc_unit_size' sysfs attribute commit
pm-graph: AnalyzeBoot v2.1 commit, AnalyzeSuspend v4.7 commit
- thermal
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:
power: wm831x_power: Support USB charger current limit management commit
- regulator
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
sprd: Add Spreadtrum pin control driver commit
sunxi: add support of R40 to A10 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
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
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/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