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Linus Torvalds 8541d8f725 * MTD changes
mtdconcat finally makes it in, after several years of being merged and
 reverted.
 
 Baikal SoC support is being removed, so MTD bits are being removed as
 well.
 
 All the other changes are misc cleanups.
 
 * NAND changes
 
 The main changes happened in the SunXi driver in order to
 support new versions of the Allwinner NAND controller.
 
 There are also some DT-binding improvements and cleanups.
 
 Finally a couple of actual fixes (Realtek ECC and Winbond SPI NAND),
 aside with the usual load of misc changes.
 
 * SPI NOR changes
 
 There is only a collection of bugfixes this time around, with no notable
 changes to the core. Some of the more noteworthy bugfixes listed below.
 
 - Enable die erase on MT35XU02GCBA. We knew this flash needed this fixup
   since 7f77c561e2 ("mtd: spi-nor: micron-st: add TODO for fixing
   mt35xu02gcba") but did not add it due to lack of hardware to test on.
 
 - Fix locking on some Winbond w25q series flashes.
 
 - Fix Auto Address Increment (AAI) writes on SST that flashes that start
   on odd address. The write enable latch needs to be set again after the
   single byte program.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEE9HuaYnbmDhq/XIDIJWrqGEe9VoQFAmnikDUACgkQJWrqGEe9
 VoQFDgf/WvlAbHSY1NLNB6tRgNj9n7Y8tDbSLY4nI7PjBJdQeu92PMHTs45TvMLS
 ZYyJ7ew2yf3i5KScMrz7LBGmLocGkUXD6HlFXLSy2uuwNk9REF+zwFpKLF0sLP4P
 mU1ZRukql8VTPrPA3iMJzTn7atya3PtOhAFSXDagUWzIFFdkfynTHJgPBpZYZr0n
 0xyn+uFSJCUJntfR4mPPsXH+IwGfpthI4olWAu/K4TTwZUv9qxlfe9TDEYG8PIJ4
 7DsvG/XqF2gQcWR7+VM5Wsow/EvgKqfvwgTRD2INetwUvYbJCw+xyVQGzN/3IMpR
 AMM1cv2t4dPEPgydrZiLDG5d3jynvQ==
 =sOg7
 -----END PGP SIGNATURE-----

Merge tag 'mtd/for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD changes:

   - mtdconcat finally makes it in, after several years of being merged
     and reverted

   - Baikal SoC support is being removed, so MTD bits are being removed
     as well

   - misc cleanups

  NAND changes:

   - SunXi driver support for new versions of the Allwinner NAND
     controller.

   - DT-binding improvements and cleanups.

   - A few fixes (Realtek ECC and Winbond SPI NAND), aside with the
     usual load of misc changes.

  SPI NOR fixes:

   - Enable die erase on MT35XU02GCBA. We knew this flash needed this
     fixup since 7f77c561e2 ("mtd: spi-nor: micron-st: add TODO for
     fixing mt35xu02gcba") but did not add it due to lack of hardware to
     test on.

   - Fix locking on some Winbond w25q series flashes.

   - Fix Auto Address Increment (AAI) writes on SST that flashes that
     start on odd address. The write enable latch needs to be set again
     after the single byte program"

* tag 'mtd/for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (44 commits)
  mtd: spinand: winbond: Declare the QE bit on W25NxxJW
  mtd: spi-nor: micron-st: Enable die erase support for MT35XU02GCBA
  mtd: spi-nor: winbond: Fix locking support for w25q256jw
  mtd: spi-nor: sst: Fix write enable before AAI sequence
  mtd: spi-nor: winbond: Fix locking support for w25q64jvm
  mtd: spi-nor: winbond: Fix locking support for w25q256jwm
  dt-bindings: mtd: mxc-nand: add missing compatible string and ref to nand-controller-legacy.yaml
  dt-bindings: mtd: gpmi-nand: ref to nand-controller-legacy.yaml
  dt-bindings: mtd: refactor NAND bindings and add nand-controller-legacy.yaml
  mtd: spinand: winbond: Clarify when to enable the HS bit
  mtd: rawnand: sunxi: introduce maximize variable user data length
  mtd: rawnand: sunxi: fix typos in comments
  mtd: rawnand: sunxi: change error prone variable name
  mtd: rawnand: sunxi: remove dead code
  mtd: rawnand: sunxi: make the code more self-explanatory
  mtd: rawnand: sunxi: replace hard coded value by a define - take2
  mtd: rawnand: sunxi: do not count BBM bytes twice
  mtd: rawnand: sunxi: fix sunxi_nfc_hw_ecc_read_extra_oob
  mtd: rawnand: sunxi: sunxi_nand_ooblayout_free code clarification
  mtd: cmdlinepart: use a flexible array member
  ...
History 2026-04-17 17:57:04 -07:00
arch bpf-fixes 2026-04-17 15:58:22 -07:00
block for-7.1/block-20260411 2026-04-13 15:51:31 -07:00
certs extract-cert: drop unused definition of PKEY_ID_PKCS7 2026-03-24 21:42:37 +00:00
crypto mm.git review status for linus..mm-nonmm-stable 2026-04-16 20:11:56 -07:00
Documentation * MTD changes 2026-04-17 17:57:04 -07:00
drivers * MTD changes 2026-04-17 17:57:04 -07:00
fs Various clean ups and bug fixes in ext4 for 7.1: 2026-04-17 17:08:31 -07:00
include * MTD changes 2026-04-17 17:57:04 -07:00
init mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
io_uring Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
ipc Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
kernel bpf-fixes 2026-04-17 15:58:22 -07:00
lib Bootconfig for v7.1: 2026-04-17 09:14:07 -07:00
LICENSES LICENSES: Add modern form of the LGPL-2.1 tags to the usage guide section 2025-10-22 07:58:19 +02:00
mm dma-mapping updates for Linux 7.0: 2026-04-17 11:12:42 -07:00
net bpf-fixes 2026-04-17 15:58:22 -07:00
rust mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
samples soc: drivers for 7.1 2026-04-16 20:34:34 -07:00
scripts Devicetree updates for v7.1: 2026-04-17 14:09:02 -07:00
security integrity-v7.1 2026-04-17 15:42:01 -07:00
sound rpmsg updates for v7.1 2026-04-17 14:18:55 -07:00
tools bpf-fixes 2026-04-17 15:58:22 -07:00
usr kbuild: uapi: also test UAPI headers against C++ compilers 2026-03-25 13:24:42 +01:00
virt Arm: 2026-04-17 07:18:03 -07:00
.clang-format Devicetree updates for v7.0: 2026-02-11 18:27:08 -08:00
.clippy.toml rust: bump Clippy's MSRV and clean incompatible_msrv allows 2026-04-07 09:51:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig editorconfig: add rst extension 2026-01-26 19:07:09 -08:00
.get_maintainer.ignore .get_maintainer.ignore: add myself 2026-04-02 16:48:25 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rust: provide an option to inline C helpers into Rust 2026-03-30 02:03:52 +02:00
.mailmap CXL changes for v7.1 2026-04-17 15:52:58 -07:00
.pylintrc docs: Move the python libraries to tools/lib/python 2025-11-18 09:22:40 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Major changes: 2026-04-17 16:35:49 -07:00
Kbuild checksyscalls: move instance functionality into generic code 2026-04-05 09:21:32 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS Major changes: 2026-04-17 16:35:49 -07:00
Makefile Kbuild/Kconfig updates for 7.1 2026-04-14 09:18:40 -07:00
README docs: add AI Coding Assistants documentation 2026-01-06 14:55:06 -07:00

Linux kernel
============

The Linux kernel is the core of any Linux operating system. It manages hardware,
system resources, and provides the fundamental services for all other software.

Quick Start
-----------

* Report a bug: See Documentation/admin-guide/reporting-issues.rst
* Get the latest kernel: https://kernel.org
* Build the kernel: See Documentation/admin-guide/quickly-build-trimmed-linux.rst
* Join the community: https://lore.kernel.org/

Essential Documentation
-----------------------

All users should be familiar with:

* Building requirements: Documentation/process/changes.rst
* Code of Conduct: Documentation/process/code-of-conduct.rst
* License: See COPYING

Documentation can be built with make htmldocs or viewed online at:
https://www.kernel.org/doc/html/latest/


Who Are You?
============

Find your role below:

* New Kernel Developer - Getting started with kernel development
* Academic Researcher - Studying kernel internals and architecture
* Security Expert - Hardening and vulnerability analysis
* Backport/Maintenance Engineer - Maintaining stable kernels
* System Administrator - Configuring and troubleshooting
* Maintainer - Leading subsystems and reviewing patches
* Hardware Vendor - Writing drivers for new hardware
* Distribution Maintainer - Packaging kernels for distros
* AI Coding Assistant - LLMs and AI-powered development tools


For Specific Users
==================

New Kernel Developer
--------------------

Welcome! Start your kernel development journey here:

* Getting Started: Documentation/process/development-process.rst
* Your First Patch: Documentation/process/submitting-patches.rst
* Coding Style: Documentation/process/coding-style.rst
* Build System: Documentation/kbuild/index.rst
* Development Tools: Documentation/dev-tools/index.rst
* Kernel Hacking Guide: Documentation/kernel-hacking/hacking.rst
* Core APIs: Documentation/core-api/index.rst

Academic Researcher
-------------------

Explore the kernel's architecture and internals:

* Researcher Guidelines: Documentation/process/researcher-guidelines.rst
* Memory Management: Documentation/mm/index.rst
* Scheduler: Documentation/scheduler/index.rst
* Networking Stack: Documentation/networking/index.rst
* Filesystems: Documentation/filesystems/index.rst
* RCU (Read-Copy Update): Documentation/RCU/index.rst
* Locking Primitives: Documentation/locking/index.rst
* Power Management: Documentation/power/index.rst

Security Expert
---------------

Security documentation and hardening guides:

* Security Documentation: Documentation/security/index.rst
* LSM Development: Documentation/security/lsm-development.rst
* Self Protection: Documentation/security/self-protection.rst
* Reporting Vulnerabilities: Documentation/process/security-bugs.rst
* CVE Procedures: Documentation/process/cve.rst
* Embargoed Hardware Issues: Documentation/process/embargoed-hardware-issues.rst
* Security Features: Documentation/userspace-api/seccomp_filter.rst

Backport/Maintenance Engineer
-----------------------------

Maintain and stabilize kernel versions:

* Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst
* Backporting Guide: Documentation/process/backporting.rst
* Applying Patches: Documentation/process/applying-patches.rst
* Subsystem Profile: Documentation/maintainer/maintainer-entry-profile.rst
* Git for Maintainers: Documentation/maintainer/configure-git.rst

System Administrator
--------------------

Configure, tune, and troubleshoot Linux systems:

* Admin Guide: Documentation/admin-guide/index.rst
* Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst
* Sysctl Tuning: Documentation/admin-guide/sysctl/index.rst
* Tracing/Debugging: Documentation/trace/index.rst
* Performance Security: Documentation/admin-guide/perf-security.rst
* Hardware Monitoring: Documentation/hwmon/index.rst

Maintainer
----------

Lead kernel subsystems and manage contributions:

* Maintainer Handbook: Documentation/maintainer/index.rst
* Pull Requests: Documentation/maintainer/pull-requests.rst
* Managing Patches: Documentation/maintainer/modifying-patches.rst
* Rebasing and Merging: Documentation/maintainer/rebasing-and-merging.rst
* Development Process: Documentation/process/maintainer-handbooks.rst
* Maintainer Entry Profile: Documentation/maintainer/maintainer-entry-profile.rst
* Git Configuration: Documentation/maintainer/configure-git.rst

Hardware Vendor
---------------

Write drivers and support new hardware:

* Driver API Guide: Documentation/driver-api/index.rst
* Driver Model: Documentation/driver-api/driver-model/driver.rst
* Device Drivers: Documentation/driver-api/infrastructure.rst
* Bus Types: Documentation/driver-api/driver-model/bus.rst
* Device Tree Bindings: Documentation/devicetree/bindings/
* Power Management: Documentation/driver-api/pm/index.rst
* DMA API: Documentation/core-api/dma-api.rst

Distribution Maintainer
-----------------------

Package and distribute the kernel:

* Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst
* ABI Documentation: Documentation/ABI/README
* Kernel Configuration: Documentation/kbuild/kconfig.rst
* Module Signing: Documentation/admin-guide/module-signing.rst
* Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst
* Tainted Kernels: Documentation/admin-guide/tainted-kernels.rst

AI Coding Assistant
-------------------

CRITICAL: If you are an LLM or AI-powered coding assistant, you MUST read and
follow the AI coding assistants documentation before contributing to the Linux
kernel:

* Documentation/process/coding-assistants.rst

This documentation contains essential requirements about licensing, attribution,
and the Developer Certificate of Origin that all AI tools must comply with.


Communication and Support
=========================

* Mailing Lists: https://lore.kernel.org/
* IRC: #kernelnewbies on irc.oftc.net
* Bugzilla: https://bugzilla.kernel.org/
* MAINTAINERS file: Lists subsystem maintainers and mailing lists
* Email Clients: Documentation/process/email-clients.rst