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Linux_5.3 - Linux Kernel Newbies

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Linux Kernel Newbies

KernelNewbies:

Last updated at 2019-11-25 21:02:00

Linux 5.3 was released on Sun, 15 Sep 2019.

Summary: This release includes support for AMD Navi GPUs; support for the umwait x86 instructions that let processes wait for short amounts of time without spinning loops; a 'utilization clamping' mechanism that is used to boost interactivity in the power-asymmetric CPUs used in phones; a new pidfd_open(2) system call that completes the work done to let users deal with the PID reuse problem; 16 millions of new IPv4 addresses in the 0.0.0.0/8 range are made available; support for Zhaoxin x86 CPUs; support Intel Speed Select for easier power selection in Xeon servers; and support for the lightweight hypervisor ACRN, built for embedded IoT devices. As always, there are many other new drivers and improvements.

1. Coolest features

1.1. New 'pidfd' functionality to help service managers to deal with PID reuse problems

To solve the issue of PID reuse in Unix systems, Linux 5.1 added the pidfd_send_signal(2), which let processes send signals to "pidfd" handles that are stable even after PID reuse. Linux 5.2 added the CLONE_PIDFD to clone(2), which let users to create PIDs that were usable with pidfd_send_signal(2). But there are many processes creates with fork() or clone() without CLONE_PIDFD, which can cause problems for the Android's low memory killer (LMK) or service managers such as systemd. To complete the functionality needed to deal with the PID reuse issue, this release adds the pidfd_open(2) syscall: It allows a caller to retrieve pollable pidfd's for a process which did not get created using the CLONE_PIDFD clone(2) flag.

Additionally, this release adds polling support for pidfds. This allows process managers to know when a (non-parent) process dies in a race-free way. The notification mechanism used follows the same logic that is currently used when the parent of a task is notified of a child's death. With this patchset it is possible to put pidfds in an {e}poll loop and get reliable notifications for process (i.e. thread-group) exit.

Recommended LWN article: New system calls: pidfd_open() and close_range()

1.2. Utilization clamping support in the task scheduler

This release adds utilization clamping support to the task scheduler. This is a refinement of the energy aware scheduling framework for power-asymmetric systems (like ARM big.LITTLE) added in Linux 5.0. Utilization clamping is a mechanism that allows to enforce a minimum and/or maximum frequency range, depending on which tasks are currently active on a CPU. The main use-cases for utilization clamping are: a) boost tasks which are directly affecting the user experience by running them at least at a minimum "requested" frequency, b) cap low priority tasks not directly affecting the user experience by running them only up to a maximum "allowed" frequency. Per-task clamping attributes can be set through sched_setattr(2). This feature intends to replace the hacks that Android had developed to achieve the same result.

Recommended LWN article: Scheduler utilization clamping

1.3. Support for AMD Navi GPUs

This release adds initial support for the AMD Navi GPUs in the amdgpu driver, these are the new AMD RX5700 GPUs that just recently became available. This released adds support for the core driver, displays (DCN2), GFX and compute (GFX10), System DMA (SDMA 5), Multimedia decode and encode (VCN2) and Power management.

1.4. Support for Zhaoxin x86 CPUs

This release adds support for Zhaoxin x86 Processors. Zhaoxin is a company created in 2013 as a joint venture between VIA Technologies and the Shanghai Municipal Government. The architecture of the ZX family of processors is a continuation of VIA's Centaur Technology x86-64 Isaiah design.

1.5. Support Intel Speed Select for easier power tuning

This release adds support for Intel Speed Select, a feature only supported on specific Xeon servers. It is a power management technology that lets users to configure their servers for throughput and per-core performance settings, allowing the prioritization of performance for certain workloads running on specific cores by sacrificing the performance of other cores.

1.6. Power efficient userspace waiting with the umwait x86 instructions

If an application needs to wait very short times they have to have a spinning loop, which consume power and hurt its thread siblings in a core with hyperthreads. This release enables userspace to use three new instructions that will be added to the upcoming Intel "Tremont" chips: umonitor, umwait and tpause; they let a userspace process wait for short amounts of time without spinning loops, thus letting applications to do those short waits spending less power and not impacting the performance of other hypertreads.

Recommended LWN article: Short waits with umwait

1.7. A few millions of new IPv4 addresses

This release contains a trivial, but impacting change: The 0.0.0.0/8 IPv4 range will be accepted by Linux (despite not being declared as such in standards) as a valid address range, allowing for 16 million new IPv4 addresses.

The IPv4 address space includes hundreds of millions of addresses reserved for obscure, or obsolete reasons, or for "future use". Instead of leaving these IP addresses unused, a IPv4 Cleanup Project has been have started to make them usable, generally. For more details, see this Potential IPv4 Unicast expansions talk.

1.8. Add the IoT ACRN supervisor

This release adds support of the ACRN hypervisor. ACRN is a flexible, lightweight reference hypervisor, built with real-time and safety-criticality in mind, optimized to streamline embedded development through an open source platform. It is built for embedded IoT with small footprint and real-time features. More details can be found in https://projectacrn.org/

2. Core (various)

  • (FEATURED) To solve the Unix design problem of PID reuse, Linux 5.1 added the pidfd_send_signal(2). Linux 5.2 added the CLONE_PIDFD to clone(2), which let users to create PIDs that were usable with pidfd_send_signal(2). But there are many processes creates with fork() or clone() without CLONE_PIDFD, which can cause problems for the Android's low memory killer (LMK) or service managers such as systemd. This release adds the pidfd_open(2) syscall: It allows a caller to retrieve pollable pidfd's for a process which did not get created using the CLONE_PIDFD clone(2) flag commit, commit, commit

  • (FEATURED) Adds polling support for pidfds. This allows process managers to know when a (non-parent) process dies in a race-free way. The notification mechanism used follows the same logic that is currently used when the parent of a task is notified of a child's death. With this patchset it is possible to put pidfds in an {e}poll loop and get reliable notifications for process (i.e. thread-group) exit commit, commit

  • io_uring

    • Add support for recvmsg() commit

    • Add support for sendmsg() commit

    • Handle generic short reads automatically. This can happen fairly easily if parts of the buffered read is cached. Since the application needs to issue another request for the remainder, just do this internally and save kernel/user round trip while providing a nicer more robust API commit

    • Add support for Submission Queue Entry links. This allows Submission Queue Entries to depend on each other, enabling an application to eg queue a read-from-this-file,write-to-that-file pair commit

  • firmware: Add support for loading compressed firmware files. Currently the files in /lib/firmware counts up to 419MB, while they can be reduced to 130MB by file compression. Currently only XZ format is supported commit

  • Fixes for major copy_file_range() issues: Now the system call will actually check its range parameters correctly; refuse to copy into files for which the caller does not have sufficient privileges; update mtime and strip setuid like file writes are supposed to do; and allows copying up to the EOF of the source file instead of failing the call like we used to. Also, implement permitting filesystems to copy across devices commit, commit, commit, commit, commit, commit, commit, commit, commit

  • The clone() syscall has no space for new flags, so a replacement with space for more flags has been added. Recommended LWN article, commit, commit, commit

  • Task scheduler

    • (FEATURED) Add utilization clamping support. This is a refinement of the energy aware scheduling framework for power-asymmetric systems added in Linux 5.0 with support for boosting of interactive and capping of background workloads: to make sure critical GUI threads get maximum frequency ASAP, and to make sure background processing doesn't unnecessarily move to cpufreq governor to higher frequencies and less energy efficient CPU modes commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Add new tracepoints required for energy-aware scheduling testing commit, commit, commit, commit, commit, commit

  • console: Automatically choose a bigger font for high resolution screens commit

  • Remove "rootfs" from /proc/filesystems commit

  • ptrace: add PTRACE_GET_SYSCALL_INFO request to lets ptracer obtain details of the syscall the tracee is blocked in. There are two reasons for a special syscall-related ptrace request. Firstly, with the current ptrace API there are cases when ptracer cannot retrieve necessary information about syscalls. Second, ptracers also have to support a lot of arch-specific code for obtaining information about the tracee. strace 4.26 has been adapted to use this API commit, commit, commit, commit, commit, commit, commit

  • locking

    • Part 2 of rwsem scalability improvements, which drastically improve the performance of this locking primitive. There is a lot of changes that makes it similar to qrwlock, including owner handoff for more fair locking commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Enable elimination of Tree-RCU softirq processing with kernel boot parameter rcutree.use_softirq. If set to zero, it moves all RCU_SOFTIRQ processing to per-CPU rcuc kthreads commit

  • Introduce CONFIG_PREEMPT_RT as a clear sign that the RT patchset will be fully integrated into the mainline kernel in the future merge

  • Adds a kernel parameter, kprobe_event to add and enable new kprobe events at boot time. The syntax is similar to tracing/kprobe_events interface but using ',' ';' instead of ' ' and '\n'. e.g. kprobe_event=p,func1,$arg1,$arg2;p,func2,$arg1 will add probes on func1 with the 1st and the 2nd arguments and on func2 with the 1st argument commit, commit

  • vmcore: add a kernel parameter novmcoredd, which disables device dump commit

  • Consolidation of the per-architecture vDSO code into a generic library, and conversion of x86 and ARM64 to it (others architectures will follow in the future). Besides the benefits of code reuse, the architectures arm64, compat arm64, arm and mips will gain support for CLOCK_BOOTTIME and CLOCK_TAI commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • kbuild
  • GDB scripts

    • Add helpers to find and list devices commit

    • Add lx-genpd-summary command commit

    • Add an script to parse the ABI files commit

  • jump labels: optimize the case in which a static key has more than one entry commit, commit, commit, commit, commit

  • debugobjects: Try to reduce the level of contention on the global lock used by the debug objects code, which causes a lot of contention commit, commit, commit, commit, commit

  • binfmt_flat: make support for old format binaries optional commit

  • Globally enables the -Wimplicit-fallthrough commit

3. File systems

  • XFS

    • Introduce new BULKSTAT and INUMBERS ioctls. They report features in the v5 file system format, such as inode birth time and the ability to do per-AG BULKSTAT and INUMBERS. The new structures fix the alignment and padding issues that plague the old ioctls. In xfsprogs, some wrapper functions will be introduced that allow new utilities to run on old kernels by emulating the new functionality commit, commit, commit, commit, commit, commit, commit, commit

    • The beginnings of multithreaded inode walks (e.g. quotacheck) commit

    • Implement cgroup aware writeback commit

  • Btrfs

    • Detect fast implementation of crc32c on all architectures commit

  • ext4

    • Enforce the immutable flag on open files commit

    • Allow directory holes commit

  • Ceph
  • CIFS

    • smbdirect no longer experimental commit

    • Add SMB3.1.1 GCM to negotiated crypto algorigthms commit

    • Add new mount option to retrieve mode from special ACE commit

    • Improve performance of POSIX open by querying inode number on open via create context commit

    • Allow query of symlinks stored as reparse points commit

    • Optimize open to not send query file internal info commit

  • F2FS

    • Add option to limit required GC for checkpoint=disable commit

    • Add ioctl for removing a range from F2FS commit

    • Support swap file w/ DIO commit

    • Allow all the users to pin a file commit

    • Allocate blocks for pinned file commit

  • NFS

    • Allow NFS client to set up multiple TCP connections to the server using a new 'nconnect=X' mount option. Queue length is used to balance load commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Use sysfs in conjunction with the udev daemon to allow the client to run a configuration script to automatically set the NFSv4 client identifier on first use commit, commit, commit

    • Expose information about NFSv4 state held by knfsd on behalf of NFSv4 clients. This especially important for opens, which are currently invisible to userspace on the server, unlike locks (/proc/locks) and local processes' opens (under /proc/<pid>/). The approach is to add a new directory /proc/fs/nfsd/clients/ with subdirectories for each active NFSv4 client. Each subdirectory has an "info" file with some basic information to help identify the client and a "states" directory that lists the open state held by that client commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • UBIFS

    • Add support for zstd compression commit

    • Support offline signed images commit

  • OCFS2

    • Add locking filter debugfs file commit

  • CODA

    • Add hinting support for partial file caching commit

  • AFS

    • Add support for the UAE error table commit

4. Memory management

  • dma-buf: give each buffer a full-fledged inode. By traversing /proc/*/fd and /proc/*/map_files, processes with CAP_ADMIN can get a lot of fine-grained data about how shmem buffers are shared among processes commit, commit, commit

  • Provide init_on_alloc and init_on_free boot options. These are aimed at preventing possible information leaks and making the control-flow bugs that depend on uninitialized values more deterministic. Enabling either of the options guarantees that the memory returned by the page allocator and SL[AU]B is initialized with zeroes. (SLOB allocator isn't supported at the moment). Enabling init_on_free also guarantees that pages and heap objects are initialized right after they're freed, so it won't be possible to access stale data by using a dangling pointer commit, commit

  • Improve CONFIG_DEBUG_PAGEALLOC so that it has even smaller overhead when not enabled at boot time, and also when enabled (Patch 3), and extended it to perform the struct page checks more often when enabled. Now it can be configured in when building a distro kernel without extra overhead, and debugging page use after free or double free can be enabled simply by rebooting with debug_pagealloc=on commit, commit, commit

  • memory control group

    • Introduce a new <debugfs>/memcg_slabinfo file which is somewhat similar to /proc/slabinfo in format, but lists only information about kmem caches that have child memcg kmem caches. Information available in /proc/slabinfo are not repeated in memcg_slabinfo commit

    • The memory controller exposes a memory.events file which shows the number of times events have happened for the whole tree rooted at a given memcg. However there are users which are only interested in the events happening at a specific level of the memcg tree and not in the events in the underlying tree rooted at that memcg, and find memory.events inconvenient. This release introduces a memory.events.local file to the memcg which shows and notify for the events at the memcg level commit

    • On cgroup removal, reparent slab memory to the parent cgroup; lack of this funcionality was preventing dying cgroups from being reclaimed commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • smaps: Report separate components (anon, file, and shmem) for PSS in smaps_rollup proc file. This helps understand and tune the memory manager behavior in consumer devices, particularly mobile devices commit

  • swap: use rbtree for swap_extent instead of a linked list, which greatly improves swap performance when there are lots of processes accessing the swap device concurrently and swap is very fragmented commit

  • Sub-section memory hotplug support: Generalise the memory hotplug code so that pmem can use it more completely. Then remove the hacks from the libnvdimm code which were there to work around the memory-hotplug code's constraints commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • KASAN: Add object validation in ksize() to avoid unconditionally unpoisoning the whole shadow memory region associated with an allocation. This can lead to various undetected bugs commit, commit, commit, commit, commit, commit

  • Add bitops instrumentation to KASAN commit, commit, commit,

  • slab: add defenses against slab cache confusion (as seen in real-world exploits) and gracefully handles type confusions when trying to look up slab caches from an arbitrary page commit, commit, commit

  • device-dax: "Hotremove" persistent memory that is used like normal RAM commit

  • Show number of vmalloc pages in /proc/meminfo commit

  • vmscan: scan anonymous pages on file refaults. When file refaults are detected and there are many inactive file pages, the system never reclaim anonymous pages, the file pages are droppedaggressively when there are still a lot of cold anonymous pages and system thrashes. This issue impacts the performance of applications with large executable, e.g. chrome commit

  • tools/memory-model: Add data-race detection commit

  • Extend tools/vm/slabinfo to improve the fragmentation information by enabling sorting of caches by number of partial slabs commit, commit, commit, commit

5. Block layer

  • dm crypt: implement eboiv, encrypted byte-offset initialization vector. This IV is used in some BitLocker devices with CBC encryption mode commit

  • dm kcopyd: Increase default sub-job size to 512KB to improve performance, also, add dm_mod.kcopyd_subjob_size_kb module parameter to allow users to fine tune the sub-job size of kcopyd commit

  • dm snapshot: Add optional discard features to DM snapshot which allow freeing space from a DM device whose free space was exhausted commit

  • nbd: add netlink reconfigure resize support commit

  • rbd: support for object-map and fast-diff commit

  • sed-opal: add ioctl for setting the shadow MBR done flag which can be useful for unlocking an OPAL disk on boot, and also add ioctl for writing to the shadow MBR commit, commit

6. Tracing, perf and BPF

7. Virtualization

  • Add virtio-iommu driver. The virtio IOMMU is a para-virtualized device, allowing to send IOMMU requests such as map/unmap over virtio transport without emulating page tables. This implementation handles ATTACH, DETACH, MAP and UNMAP requests commit

  • virtio-pmem: Add virtio pmem driver that provides access to virtio-pmem devices, storage devices that are mapped into the physical address space - similar to NVDIMMs - with a virtio-based flushing interface commit

  • virtio_net: enable napi_tx by default. NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). TSQ reduces queuing ("bufferbloat") and burstiness commit

  • vhost: accelerate metadata access. Test shows about 24% improvement on TX PPS commit, commit, commit, commit, commit, commit

  • vhost_net: disable zerocopy by default commit

  • veth: introduces bulk XDP_TX in veth. Improves XDP_TX performance by approximately 9% commit

  • vfio: mdev: Send uevents around parent device registration commit

  • vmw_balloon: Compaction and shrinker support commit, commit, commit, commit

  • xen: remove tmem driver commit

8. Cryptography

  • Keys

    • Make keys and keyrings more namespace aware commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Change the permissions model used by keys and keyrings to be based on an ACL commit, commit

    • Add a keyctl to atomically move a link to a key from one keyring to another commit

    • Add a keyctl function that requests a set of capability bits to find out what features are supported commit

  • drbg: add FIPS 140-2 CTRNG for noise source commit

  • jitter: update implementation to upstream 2.1.2 commit

  • xxhash: Implement xxHash support. xxHash is a non-cryptographic hash algorithm. Extremely fast, working at speeds close to RAM limits commit

9. Security

  • Add support for measuring the boot command line during kexec commit, commit, commit

  • IMA: support per policy rule template format support, needed for a couple of new/proposed features (eg. kexec boot command line measurement, appended signatures, and VFS provided file hashes) commit

  • TPM: Add support for TCG2 event logs on EFI systems commit, commit, commit, commit

  • Add the ability to filter audit records based on network address family commit

10. Networking

  • (FEATURED) IPv4: Allow 0.0.0.0/8 as a valid address range, allowing for 16 million new IPv4 addresses. This is part of the IPv4 Cleanup Project, started to increase the number of available unicast IPv4 addresses commit

  • User API and initial implementation for nexthop objects, designed to improve the scalability of routes commit, commit, commit, commit, commit, commit,

  • Enable nexthop objects with IPv4 and IPv6 routes. This is the last part of a long term optimization work, thanks to it a full internet fib (743,799 routes based on a pull in January 2019) can be pushed to the kernel in 4.3 seconds commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Multipath hashing on inner L3 commit, commit, commit

  • Support multipath hashing on inner IP pkts for GRE tunnel commit

  • IPv4: enable route flushing in network namespaces commit

  • IPv6: Extend flowlabel_reflect sysctl bitmask to allow conditional reflection of incoming flowlabels in echo replies commit

  • IPv6: more control on RST flowlabels commit, commit

  • TCP: add TFO backup key commit, commit, commit, commit, commit, commit

  • TCP: add optional per socket transmit delay. Adding delays to TCP flows is crucial for studying behavior of TCP stacks commit

  • Fix listing (IPv4, IPv6) and flushing (IPv6) of cached route exceptions by allowing userspace to clearly request cached routes with the RTM_F_CLONED flag used as a filter (in conjuction with strict checking) and by retrieving and dumping cached routes if requested commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Unix Sockets: Adds the ability for netlink to report a socket's UID along with the commit

  • Bluetooth:

    • Add support for LE ping feature commit

    • Add debug setting for changing minimum encryption key size commit

  • batman-adv: Add routable multicast optimizations commit, commit, commit, commit, commit

  • Netdevice HW MPLS features are not passed from device driver's netdevice to upper netdevice, specifically VLAN and bonding netdevice which are created by the kernel when needed. This prevents enablement and usage of HW offloads. This release inherit the MPLS features from lower netdevices to allow the HW offloads commit, commit

  • bonding: add an option to specify a delay between peer notifications commit

  • devlink: To improve visibility of representor netdevice, its association with PF or VF, physical port, two new devlink port flavours are added as PCI PF and PCI VF ports commit, commit, commit, commit, commit

  • Decoupling PHYLINK from struct net_device commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • dsa: adds support for enabling or disabling the flooding of unknown multicast traffic on the CPU ports commit

  • Netfilter

    • Add support for hardware offloads commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Add native connection tracking support for the bridge. Before this patchset, only chance for people to do stateful filtering is to use the br_netfilter emulation layer, this is a step forward to deprecate it commit, commit, commit, commit, commit, commit, commit, commit, commit

    • Support for pernet sysctl in br_netfilter commit, commit

    • Add SYNPROXY module support in nf_tables. It preserves the behaviour of the SYNPROXY target of iptables but structured in a different way to propose improvements in the future commit

    • Support to match IPv4 options in nf_tables commit

    • Support to restore expiration time in set element commit

    • nft_ct: allow to add, list and delete expectations via nft objref infrastructure and assigning these expectations via nft rule. This allows manual port triggering when no helper is defined to manage a specific protocol commit

    • Support for bridge vlan protocol matching commit

    • Support for bridge pvid matching commit

    • xt_owner: Add supplementary groups option commit

  • ipoib: show VF broadcast address commit and correcly show a VF hardware address commit

  • ipvs

    • Add checksum support for gue encapsulation commit

    • Allow tunneling with gre encapsulation commit

  • mac80211

    • Add code to explicitly enable TWT support inside the driver. At least ath11k needs an extra FW call to enable TWT inside the HW commit, commit

    • Add port authorized event support commit

    • Add SAE authentication offload commit, commit

  • rds: add per rds connection cache statistics commit

  • RDMA
  • Packet scheduler

    • Introduce tc connection tracking. capabilities in tc sw datapath. It does so via a new tc action, called act_ct, and new tc flower classifier matching on conntrack state, mark and label commit, commit, commit

    • Introduce act_ctinfo, a new tc filter action module. It is designed to restore DSCPs stored in conntrack marks into the ipv4/v6 diffserv field. The feature is intended for use and has been found useful for restoring ingress classifications based on egress classifications across links that bleach or otherwise change DSCP, typically home ISP Internet links. Restoring DSCP on ingress on the WAN link allows qdiscs such as CAKE to shape inbound packets according to policies that are easier to indicate on egress commit

    • Introduces a new traffic control action module that allows the manipulation of the MPLS headers of packets. The code implements functionality including push, pop, and modify commit, commit, commit, commit, commit

    • Add txtime-assist support for taprio commit, commit, commit, commit, commit, commit, commit, commit

    • em_ipt: add support for addrtype commit, commit, commit, commit

    • cls_matchall: allow to delete filter commit

  • team: add ethtool ops to show total speed commit

  • isdn: remove isdn4linux commit

11. Architectures

11.1. ARM

  • New SoCs

    • MediaTek mt8183 (4x Cortex-A73 + 4x Cortex-A53) commit

    • TI J721E (2x Cortex-A72 + 3x Cortex-R5F + 3 DSPs + MMA) commit, commit, commit

    • Amlogic G12B (4x Cortex-A73 + 2x Cortex-A53) (includes support for board Hardkernel ODROID-N2) commit

  • New Boards / platforms

    • Aspeed BMC support for a number of new server platforms: Facebook YAMP BMC commit, Inspur fp5280g2 BMC machine commit, Microsoft Olympus BMC commit, Swift BMC machine commit, YADRO VESNIN BMC commit, and Lenovo Hr630 BMC commit

    • Kontron SMARC SoM (several i.MX6 versions) commit, commit

    • Novtech's Meerkat96 (i.MX7) commit

    • STMicro Avenger96 board commit

    • Purism Librem 5 devkit (i.MX8MQ) commit

    • Google Cheza (Qualcomm SDM845) commit

    • Qualcomm Dragonboard 845c (Qualcomm SDM845) commit

    • Hugsun X99 TV Box (Rockchip RK3399) commit

    • Khadas Edge/Edge-V/Captain (Rockchip RK3399) commit

    • Add core dtsi file for RK3399Pro SoCs commit

    • renesas: Add HiHope RZ/G2M board support commit, commit

    • Add support for phyBOARD-REGOR-AM335x commit

    • Introduce the NXP LS1021A-TSN board commit

    • meson8b: mxq: improve support for the TRONFY MXQ S805 commit

    • The Netx platform (Netx 100/500) is removed commit

  • Workaround errata A12 857271 / A17 857272 commit

  • Workaround for I-Cache line size mismatch between CPU cores commit

  • KVM: Support chained PMU counters commit, commit, commit, commit, commit

  • perf uncore PMU event alias support for Hisi hip08 ARM64 platform commit, commit, commit, commit

  • ARM64 specific changes

    • ptrace: add support for syscall emulation PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP commit, commit, commit, commit

    • Slight performance improvement by keeping softirqs enabled while touching the FPSIMD/SVE state commit, commit, commit

    • Allow user selection of ARM64_MODULE_PLTS, currently only done via RANDOMIZE_BASE (and an erratum workaround), allowing modules to spill over into the vmalloc area commit

    • Expose a couple of ARMv8.5 features to user (HWCAP): CondM (new XAFLAG and AXFLAG instructions for floating point comparison flags manipulation) and FRINT (rounding floating point numbers to integers) commit, commit

    • KVM: Propagate full Spectre v2 workaround state to KVM guests commit

    • Enable the Arm Statistical Profiling Extension (SPE) on ACPI platforms commit, commit, commit, commit

    • crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR commit, commit

    • Make CONFIG_ZONE_DMA32 configurable commit

11.2. x86

  • (FEATURED) Enable user wait instructions umonitor, umwait and tpause commit, commit, commit, commit, commit

  • Add /proc/<pid>/arch_status for arch-specific information about the task. In this release, the field AVX512_elapsed_ms is added to show the milliseconds elapsed since the last time AVX-512 usage was recorded. Because AVX-512 components can cause core turbo frequency drop, this information is useful as a heuristic hint for the user space job scheduler to cluster the AVX-512 using tasks together commit, commit, commit

  • (FEATURED) Intel Speed Select Technology: A powerful new collection of features giving more granular control over CPU performance for optimized performance. With Intel SST, one server can be configured for power and performance for variety of diverse workload requirements commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Enumerate the new AVX-512 BFLOAT16 instructions. AVX-512 BFLOAT16 support 16-bit BFLOAT16 floating-point format (BF16) for deep learning optimization commit

  • Implement multi-die/package topology support on Intel CPUs and expose the die topology to sysfs knobs. There should be no behavioral impact on cache, NUMA, scheduler, perf and other topologies and overall system performance commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • (FEATURED) Add support for Zhaoxin processors, based on the VIA Centaur technology commit, commit, commit

  • (FEATURED) Add the support of ACRN guest under x86. ACRN is a flexible, lightweight reference hypervisor, built with real-time and safety-criticality in mind, optimized to streamline embedded development through an open source platform. It is built for embedded IOT with small footprint and real-time features. More details can be found in https://projectacrn.org/. commit, commit

  • Add restrictions for kexec/kdump jumping between 5-level and 4-level kernel commit, commit, commit

  • Add a new "xonly" mode for vsyscalls and make it the default. xonly is a bit more secure -- there are exploits that rely on read access to the vsyscall page commit, commit, commit, commit, commit, commit, commit, commit

  • tools/power turbostat: Add Ice Lake NNPI support commit and Jacobsville support commit

  • Attempt to “pin” sensitive bits in CR4 and CR0 to avoid them getting disabled commit, commit

  • Platforms

    • OLPC: Add XO-1.75 EC driver commit

    • OLPC: Add a config menu category for XO 1.75 commit

    • OLPC: Add a regulator for the DCON commit

    • chrome: Add Chrome OS EC ISHTP driver commit

    • chrome: wilco_ec: Add Boot on AC support commit

    • chrome: wilco_ec: Add event handling commit

    • chrome: wilco_ec: Add telemetry char device interface commit

    • chrome: wilco_ec: Add version sysfs entries commit

    • chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime commit

    • asus-nb-wmi: Add microphone mute key code commit

    • asus-wmi: Switch fan boost mode commit

    • hp_accel: Add support for HP ProBook 450 G0 commit

    • wmi: add Xiaomi WMI key driver commit

  • perf

  • intel_th: Add Ice Lake NNPI support commit

  • Virtualization

11.3. PowerPC

11.4. S390

11.5. ARC

11.6. C-SKY

  • perf annotate: Add C-SKY support commit

11.7. PA-RISC

11.8. RISC-V

  • Introduce huge page support commit

  • Add an Image header that boot loader can parse commit

11.9. UML

  • Support time travel mode commit

12. Drivers

12.1. Graphics

  • Add new driver for ST-Ericsson MCDE commit

  • Add driver for the Ingenic JZ47xx SoCs commit

  • Add HDR Metadata Parsing and handling in DRM layer and amdgpu and i915 commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • amdgpu

    • (FEATURED) Initial Navi 10 support. It adds core driver support, displays (DCN2), GFX and compute (GFX10), System DMA (SDMA 5), Multimedia decode and encode (VCN2) and Power management merge

    • Add pmu counters commit

    • Add MEM_LOAD to amdgpu_pm_info debugfs file commit

    • Add connector debugfs for "output_bpc" commit

    • Color space ycbcr709 support commit

    • Enable ppfeaturemask module parameter support on Vega20 commit

    • Expose SMU7 asics realtime memory utilization commit

    • Expose Vega12 current gpu activity commit

    • Expose Vega12 current power commit

    • Expose Vega12 realtime memory utilization commit

    • Expose Vega20 realtime memory utilization commit

    • Expose current hotspot and memory temperatures V2 commit

    • Support SMU metrics table on Vega12 commit

    • Support hotspot/memory critical limit values commit

    • Support hwmon temperature channel labels V2 commit

    • Support ppfeatures sysfs interface on sw smu routine commit

    • Support sw smu hotspot and memory temperature retrieval commit

    • Support temperature emergency max values commit

    • Add PCIe replay count sysfs file commit

    • Add Unique Identifier sysfs file unique_id v2 commit

    • Add module parameter for specifying default ABM level commit

    • Remove module parameter vram_page_split commit

    • Add new PSP cmd GFX_CMD_ID_PROG_REG commit, commit

    • Report firmware versions with sysfs commit

    • Add badpages sysfs interafce commit

    • Add new sysfs interface for memory realtime utilization commit

    • amdkfd

      • Add VegaM support commit

      • Add procfs-style information for KFD processes commit

      • CP queue priority controls commit, commit

      • Expose HDP registers to user space commit

  • intel
  • komeda
  • msm
  • tda998x

    • Add support for pixel repeated modes commit

    • Add vendor-specific infoframe support commit

  • armada

    • Add missing interlaced support for overlay frame commit

    • Add support for setting gamma commit

  • rockchip
  • panfrost
  • rcar-du

    • R8A774A1 Soc Support commit

    • LVDS dual-link mode support commit

    • Add support for missing 16-bit RGB1555 format commit, 16-bit RGB4444 formats commit, and 32-bit RGB formats commit

  • omapdrm
  • stm

    • Support runtime power management commit

    • dsi: add regulator support commit

  • v3d

    • Add support for compute shader dispatch commit

    • Dump V3D error debug registers in debugfs, and one at reset commit

  • sii902x

    • Implement HDMI audio support commit

  • meson

    • Add zpos immutable property to planes commit

    • Add support for XBGR8888 & ABGR8888 formats commit

  • atmel-hlcdc

    • Add sam9x60 LCD controller commit

  • imx
  • nouveau

    • Recognise TU116 chipset commit

  • vmwgfx
  • panel

    • Add OSD101T2587-53TS driver commit

    • Add driver for Samsung S6E63M0 panel commit

    • Add support for Armadeus ST0700 Adapt commit

    • Add support for EDT ETM0430G0DH6 commit

    • simple: Add Evervision VGG804821 panel support commit

    • simple: Add FriendlyELEC HD702E 800x1280 LCD panel commit

    • simple: Add KOE tx14d24vm1bpa display support (320x240) commit

    • simple: Add TFC S9700RTWV43TR-01B 800x480 panel support commit

    • simple: Add support for EDT ET035012DM6 commit

    • simple: Add support for OSD101T2045-53TS commit

    • simple: Add support for VXT VL050-8048NT-C01 panel commit

  • fbdev

12.2. Storage

  • ahci_sunxi: Increased SATA/AHCI DMA TX/RX FIFOs commit

  • lpfc

  • nvme: enable to inject errors into admin commands commit, commit

  • scsi

    • fdomain: Resurrect driver commit, commit, commit, commit

    • megaraid_sas

      • Add module parameter for FW Async event logging commit

      • Add support for High IOPS queues commit

      • Add support for MPI toolbox commands commit

      • Add support for Non-secure Aero PCI IDs commit

      • Dump system interface regs from sysfs commit

      • Enable coalescing for high IOPS queues commit

      • Export RAID map id through sysfs commit

      • Export RAID map through debugfs commit

      • Introduce various Aero performance modes commit

      • Offload Aero RAID5/6 division calculations to driver commit

      • Set affinity for high IOPS reply queues commit

      • Use high IOPS queues based on IO workload commit

    • mpt3sas: Introduce perf_mode module parameter commit

    • osst: kill obsolete driver commit

    • pm80xx: Event log size through sysfs commit

    • storvsc: Add ability to change scsi queue depth commit

    • ufshdc-pci: Add Intel PCI IDs for EHL commit

12.3. Drivers in the Staging area

  • isdn: move capi drivers to staging commit

  • allegro: add Allegro DVT video IP core driver commit, commit

  • meson: add v4l2 m2m video decoder driver commit

  • rockchip/vpu: Add support for MPEG-2 decoding on RK3288 commit, commit and on RK3399 commit

  • tegra-vde: Add IOMMU support commit

  • erofs: erofs decompression inplace commit, commit, commit, commit, commit, commit, commit, commit

  • erofs: support statx commit

  • kpc2000: export more device attributes via sysfs commit

  • mt7621-dts: add support for second network interface commit

  • wilc1000: add passive scan support commit

  • wilc1000: added support to dynamically add/remove interfaces commit

12.4. Networking

12.5. Audio

  • hda: Add Elkhart Lake PCI ID commit

  • ASoC

    • Add support for Conexant CX2072X CODEC commit

    • Intel: Add machine driver for CX2072X on BYT/CHT platforms commit

    • Intel: Skylake: Add Cometlake PCI IDs commit

    • SOF: Add Comet Lake PCI IDs commit

    • SOF: debug: add new debugfs entries for IPC flood test commit

    • SOF: soundwire: add initial soundwire support commit

    • cs47l35: Add codec driver for Cirrus Logic CS47L35 commit

    • cs47l85: Add codec driver for Cirrus Logic CS47L85 commit

    • cs47l90: Add codec driver for Cirrus Logic CS47L90 commit

    • madera: Add common support for Cirrus Logic Madera codecs commit

    • meson: add g12a tohdmitx control commit

    • meson: axg-card: add basic codec-to-codec link support commit

    • msm8916-wcd-digital: Add sidetone support commit

    • rk3399_gru_sound: Support 32, 44.1 and 88.2 kHz sample rates commit

    • rt1011: Add RT1011 amplifier driver commit

    • rt1308: Add RT1308 amplifier driver commit

    • stm32: dfsdm: add 16 bits audio record support commit

    • sun4i-spdif: Add support for H6 SoC commit

    • ti: davinci-mcasp: Support for auxclk-fs-ratio commit

12.6. Tablets, touch screens, keyboards, mouses

  • HID

    • logitech-dj: Add usb-id for the 27MHz MX3000 receiver commit

    • uclogic: Add support for Ugee Rainbow CV720 commit

    • wacom: Add 2nd gen Intuos Pro Small support commit

    • wacom: add new MobileStudio Pro support commit

    • logitech-dj: add the Powerplay receiver commit

    • intel-ish-hid: ipc: add EHL device id commit

    • Add 044f:b320 ThrustMaster, Inc. 2 in 1 DT commit

  • Add Apple SPI keyboard and trackpad driver commit

  • iforce: add the Saitek R440 Force Wheel commit

12.7. TV tuners, webcams, video capturers

12.8. Universal Serial Bus (USB)

  • Add usbfs ioctl, USBDEVFS_CONNINFO_EX, to retrieve the connection parameters commit

  • chipidea: imx: add imx7ulp support commit

  • dwc3: pci: Add Support for Intel Elkhart Lake Devices commit and for TigerLake Devices commit

  • dwc3: qcom: Add support for booting with ACPI commit

  • phy: phy-mxs-usb: add imx7ulp support commit

  • renesas_usbhs: Add support for RZ/A2 commit

  • serial: ftdi_sio: add ID for isodebug v1 commit

  • serial: option: add support for GosunCn ME3630 RNDIS mode commit

  • serial: option: Add support for ZTE MF871A commit

  • serial: option: add D-Link DWM-222 device ID commit

  • serial: option: Add Motorola modem UARTs commit

  • serial: option: add the BroadMobi BM818 card commit

12.9. Serial Peripheral Interface (SPI)

  • Add spi driver for Socionext SynQuacer platform commit

  • bcm2835: add driver stats to debugfs commit

  • bcm2835: make the polling duration limits configurable commit

  • pxa2xx: Add support for Intel Elkhart Lake commit

  • Add M53Menlo CPLD compatible commit

12.10. Watchdog

  • watchdog: allow setting deadline for opening /dev/watchdogN. This allow one to set a maximum time for which the kernel will feed the watchdog, thus ensuring that either userspace has come up, or the board gets reset. This allows fallback logic in the bootloader to attempt some recovery (for example, if an automatic update is in progress, it could roll back to the previous version) commit, commit, commit

  • hpwdt: Add module parameter kdumptimeout commit

  • imx_sc: Add pretimeout support commit

12.11. Serial

  • 8250: Add support for higher baud rates to Pericom chips commit

  • fsl_lpuart: add imx8qxp support commit

  • mpsc: Remove obsolete MPSC driver commit

  • mediatek: support Rx in-band wakeup commit

  • tty: serial: netx: Delete driver commit

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

  • Update to pm-graph 5.3 commit and 5.4 commit

  • cpufreq: Add imx-cpufreq-dt driver commit

  • cpufreq: add driver for Raspberry Pi commit

  • cpufreq: imx-cpufreq-dt: Add i.MX8MN support commit

  • powercap/intel_rapl: add support for ICX commit

  • powercap/intel_rapl: add support for ICX-D commit

  • powercap/rapl: Add Ice Lake NNPI support to RAPL driver commit

12.13. Real Time Clock (RTC)

  • bd70528: Initial support for ROHM bd70528 RTC commit

  • imx-sc: add rtc alarm support commit

  • pcf2123: add alarm support commit and remove sysfs register view commit

  • rk808: Add RK809 and RK817 support commit

  • tegra: Turn into regular driver commit

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

  • power

    • reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface commit

    • supply: Add HWMON compatibility layer commit

    • supply: Initial support for ROHM BD70528 PMIC charger block commit

    • supply: add input power and voltage limit properties commit

    • power_supply: wilco_ec: Add charging config driver commit

  • regulator

    • Add support for the stm32-booster commit

    • arizona-ldo1: Add support for Cirrus Logic Madera codecs commit

    • arizona-micsupp: Add support for Cirrus Logic Madera codecs commit

    • lm363x: Add support for LM36274 commit

    • lp87565: Add 4-phase lp87561 regulator support commit

    • max77620: Support Maxim 77663 commit

    • qcom_spmi: Add support for PM8005 commit and add PMS405 SPMI regulator commit

    • rk808: Add RK809 and RK817 support commit

    • s2mps11: Adjust supported buck voltages to real values commit

    • slg51000: add slg51000 regulator driver commit

  • reset: qcom-pon: Add support for gen2 pon commit

12.15. Pin Controllers (pinctrl)

  • Add drive strength support for BM1880 SoC commit

  • Add pinconf support for BM1880 SoC commit

  • freescale: Add i.MX8MN pinctrl driver support commit

  • meson: add output support in pinconf commit and add support of drive-strength-microamp commit

  • mvebu: Add support for MV98DX1135 commit

  • qcom: Add SM8150 pinctrl driver commit

  • tegra: Add Tegra194 pinmux driver commit

12.16. Multi Media Card (MMC)

  • sdhci-pci: Add support for Intel EHL commit

  • sdhci-sprd: Add optional gate clock support commit and add pin control support for voltage switch commit

  • sdhci_am654: Add Support for 4 bit IP on J721E commit and 8 bit IP on J721E commit

12.17. Memory Technology Devices (MTD)

  • Add Initial Hyperbus support commit, commit, commit, commit, commit

  • onenand: Add support for 8Gb datasize onenand commit

  • rawnand: Add Macronix NAND read retry support commit

  • rawnand: brcmnand: Add support for v7.3 controller commit

  • spi-nor: Add Micron MT25QL02 support commit

  • spi-nor: Add Winbond w25q16jv support commit

  • spi-nor: intel-spi: Add support for Intel Elkhart Lake SPI serial flash commit

  • spi-nor: stm32: remove the driver as it was replaced by spi-stm32-qspi.c commit

  • spinand: Add initial support for Paragon PN26G0xA commit

  • spinand: Add support for GigaDevice GD5F1GQ4UFxxG commit

  • spinand: Add support for two-byte device IDs commit

12.18. Industrial I/O (iio)

  • Add driver for Infineon DPS310 commit

  • accel: add missing sensor for some 2-in-1 based ultrabooks commit

  • adc: ad7124: Add buffered input support commit

  • adc: mediatek: mt6577-auxadc, add mt6765 support commit

  • adc: stm32-dfsdm: add fast mode support commit

  • amplifiers: ad8366: Add support for ADL5240 VGA commit and for the ADA4961 DGA commit

  • cros_ec: Add lid angle driver commit

  • cros_ec: add 'id' sysfs entry commit

  • dps310: Add pressure sensing capability commit

  • frequency: adf4371: Add support for ADF4371 PLL commit, ADF4372 PLL commit and for output stage mute commit

  • light: stk3310: Add support for stk3335 commit

12.19. Multi Function Devices (MFD)

  • ti-lmu: Add LM36274 support to the ti-lmu commit

  • ti-lmu: Remove support for LM3697 commit

  • cros_ec_debugfs: Expose resume result via debugfs commit

  • lp87565: Add support for 4-phase LP87561 combination commit

  • bd70528: Support ROHM bd70528 PMIC core commit

  • rk808: Add RK817 and RK809 support commit

  • intel-lpss: Add Intel Elkhart Lake PCH PCI IDs commit

  • madera: Add Madera core support for CS47L15 commit and CS47L92 commit

12.20. Pulse-Width Modulation (PWM)

  • Add support referencing PWMs from ACPI commit

  • sifive: Add a driver for SiFive SoC PWM commit

12.21. Inter-Integrated Circuit (I2C + I3C)

  • regmap: add i3c bus support commit

  • Add support for IPMB driver commit

  • i801: Add Block Write-Block Read Process Call support commit

  • i801: Add support for Intel Elkhart Lake commit and Intel Tiger Lake commit

  • mt7621: Add MediaTek MT7621/7628/7688 I2C driver commit

  • ocores: add support for i2c device on Sifive FU540-c000 SoC commit

12.22. Hardware monitoring (hwmon)

  • pmbus: Add Infineon PXE1610 VR driver commit

  • pmbus: Add Infineon IRPS5401 driver commit

12.23. General Purpose I/O (gpio)

  • Initial support for ROHM bd70528 GPIO block commit

  • mb86s7x: Enable ACPI support commit

  • pca953x: Add support for the TI TCA9539 commit

12.24. Leds

  • TI LMU: Add common code for TI LMU devices commit

  • lm36274: Introduce the TI LM36274 LED driver commit

  • lm3697: Introduce the lm3697 driver commit

  • spi-byte: add single byte SPI LED driver commit

12.25. DMA engines

12.26. Hardware Random Number Generator (hwrng)

  • iproc-rng200: Add support for 7211 commit

12.27. Cryptography hardware acceleration

  • atmel-i2c: add support for SHA204A random number generator commit

  • inside-secure: add support for HMAC updates commit

  • inside-secure: implement IV retrieval commit

12.28. PCI

  • MSI: Support allocating virtual MSI interrupts commit

  • switchtec: Add module parameter to request more interrupts commit

  • Enable NVIDIA HDA controllers commit

  • qcom: Add QCS404 PCIe controller support commit

  • tegra: Add PCIe Gen2 link speed support commit

  • tegra: Enable Relaxed Ordering only for Tegra20 & Tegra30 commit

12.29. Clock

  • Add Si5341/Si5340 driver commit

  • Add clk_parent entry in debugfs commit

  • RK808: Add RK809 and RK817 support commit

  • add BCM63XX gated clock controller driver commit

  • at91: sckc: add support for SAM9X60 commit

  • bcm283x: add driver interfacing with Raspberry Pi's firmware commit

  • bd718x7: Support ROHM BD70528 clk block commit

  • clk-si544: Implement small frequency change support commit

  • kirkwood: Add support for MV98DX1135 commit

  • mediatek: add audsys clock driver for MT8516 commit

  • meson-g12a: add temperature sensor clocks commit

  • meson: g12a: Add support for G12B CPUB clocks commit

  • qoriq: add support for lx2160a commit

  • sysctr: Add nxp system counter timer driver support commit

12.30. PHY ("physical layer" framework)

  • qcom: Add Qualcomm PCIe2 PHY driver commit

  • Add driver for mixel mipi dphy found on NXP's i.MX8 SoCs commit

12.31. EDAC (Error Detection And Correction)

  • altera: Add Stratix10 OCRAM & SDMMC EDAC Support commit

  • i10nm: Add Intel additional Ice-Lake support commit

  • ie31200: Add Intel Coffee Lake CPU support commit

  • sifive: Add EDAC platform driver for SiFive SoCs commit

12.32. Non-Transparent Bridge (NTB)

12.33. Various

  • PCI: Add Synopsys endpoint EDDA Device ID commit

  • extcon: Add fsa9480 extcon driver commit

  • firmware: ti_sci: Add resource management APIs for ringacc, psi-l and udma commit

  • firmware: ti_sci: Add support for processor control commit

  • habanalabs: Add busy engines bitmask to HW idle IOCTL commit

  • habanalabs: Add debugfs node for engines status commit

  • hwspinlock/omap: Add support for TI K3 SoCs commit

  • iommu/vt-d: Add debugfs support to show scalable mode DMAR table internals commit

  • iommu: Add recoverable fault reporting commit

  • iommu: Introduce IOMMU_RESV_DIRECT_RELAXABLE reserved memory regions commit

  • irqchip/al-fic: Introduce Amazon's Annapurna Labs Fabric Interrupt Controller Driver commit

  • irqchip/exiu: Implement ACPI support commit

  • irqchip/gic-v2m: Add support for Amazon Graviton variant of GICv3+GICv2m commit

  • irqchip: Add Renesas RZ/A1 Interrupt Controller driver commit

  • mailbox: omap: Add support for TI K3 SoCs commit

  • mei: me: add mule creek canyon (EHL) device ids commit

  • memory: jz4780_nemc: Add support for the JZ4740 commit

  • memory: jz4780_nemc: Add support for the JZ4740 commit

  • misc: fsa9480: Delete this driver commit

  • misc: xilinx-sdfec: add core driver commit

  • misc: xilinx_sdfec: Add CCF support commit

  • nvmem: imx-ocotp: Add i.MX8MM support commit

  • nvmem: imx: add i.MX8 nvmem driver commit

  • pinctrl: generic: add new 'drive-strength-microamp' property support commit

  • remoteproc: stm32: add an ST stm32_rproc driver commit

  • soc: amlogic: canvas: add support for Meson8, Meson8b and Meson8m2 commit

  • soc: fsl: add DPAA2 console support commit

  • soc: imx: Add SCU SoC info driver support commit

  • soc: qcom: Add AOSS QMP driver commit

  • spi: pxa2xx: Add support for Intel Tiger Lake commit

13. List of merges

14. Other news sites


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