Merge tag 'docs-6.4' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Commit volume in documentation is relatively low this time, but there
  is still a fair amount going on, including:

   - Reorganize the architecture-specific documentation under
     Documentation/arch

     This makes the structure match the source directory and helps to
     clean up the mess that is the top-level Documentation directory a
     bit. This work creates the new directory and moves x86 and most of
     the less-active architectures there.

     The current plan is to move the rest of the architectures in 6.5,
     with the patches going through the appropriate subsystem trees.

   - Some more Spanish translations and maintenance of the Italian
     translation

   - A new "Kernel contribution maturity model" document from Ted

   - A new tutorial on quickly building a trimmed kernel from Thorsten

  Plus the usual set of updates and fixes"

* tag 'docs-6.4' of git://git.lwn.net/linux: (47 commits)
  media: Adjust column width for pdfdocs
  media: Fix building pdfdocs
  docs: clk: add documentation to log which clocks have been disabled
  docs: trace: Fix typo in ftrace.rst
  Documentation/process: always CC responsible lists
  docs: kmemleak: adjust to config renaming
  ELF: document some de-facto PT_* ABI quirks
  Documentation: arm: remove stih415/stih416 related entries
  docs: turn off "smart quotes" in the HTML build
  Documentation: firmware: Clarify firmware path usage
  docs/mm: Physical Memory: Fix grammar
  Documentation: Add document for false sharing
  dma-api-howto: typo fix
  docs: move m68k architecture documentation under Documentation/arch/
  docs: move parisc documentation under Documentation/arch/
  docs: move ia64 architecture docs under Documentation/arch/
  docs: Move arc architecture docs under Documentation/arch/
  docs: move nios2 documentation under Documentation/arch/
  docs: move openrisc documentation under Documentation/arch/
  docs: move superh documentation under Documentation/arch/
  ...

6 files changed, 152 insertions, 19 deletions

diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
index 007e49ef6cec..6db37a46d305 100644
--- a/Documentation/process/coding-style.rst
+++ b/Documentation/process/coding-style.rst
@@ -1267,5 +1267,5 @@ gcc internals and indent, all available from https://www.gnu.org/manual/
 WG14 is the international standardization working group for the programming
 language C, URL: http://www.open-std.org/JTC1/SC22/WG14/
 
-Kernel :ref:`process/coding-style.rst <codingstyle>`, by greg@kroah.com at OLS 2002:
+Kernel CodingStyle, by greg@kroah.com at OLS 2002:
 http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/
diff --git a/Documentation/process/contribution-maturity-model.rst b/Documentation/process/contribution-maturity-model.rst
new file mode 100644
index 000000000000..b87ab34de22c
--- /dev/null
+++ b/Documentation/process/contribution-maturity-model.rst
@@ -0,0 +1,109 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========================================
+Linux Kernel Contribution Maturity Model
+========================================
+
+
+Background
+==========
+
+As a part of the 2021 Linux Kernel Maintainers’ Summit, there was a
+`discussion <https://lwn.net/Articles/870581/>`_ about the challenges in
+recruiting kernel maintainers as well as maintainer succession.  Some of
+the conclusions from that discussion included that companies which are a
+part of the Linux Kernel community need to allow engineers to be
+maintainers as part of their job, so they can grow into becoming
+respected leaders and eventually, kernel maintainers.  To support a
+strong talent pipeline, developers should be allowed and encouraged to
+take on upstream contributions such as reviewing other people’s patches,
+refactoring kernel infrastructure, and writing documentation.
+
+To that end, the Linux Foundation Technical Advisory Board (TAB)
+proposes this Linux Kernel Contribution Maturity Model. These common
+expectations for upstream community engagement aim to increase the
+influence of individual developers, increase the collaboration of
+organizations, and improve the overall health of the Linux Kernel
+ecosystem.
+
+The TAB urges organizations to continuously evaluate their Open Source
+maturity model and commit to improvements to align with this model.  To
+be effective, this evaluation should incorporate feedback from across
+the organization, including management and developers at all seniority
+levels.  In the spirit of Open Source, we encourage organizations to
+publish their evaluations and plans to improve their engagement with the
+upstream community.
+
+Level 0
+=======
+
+* Software Engineers are not allowed to contribute patches to the Linux
+  kernel.
+
+
+Level 1
+=======
+
+* Software Engineers are allowed to contribute patches to the Linux
+  kernel, either as part of their job responsibilities or on their own
+  time.
+
+Level 2
+=======
+
+* Software Engineers are expected to contribute to the Linux Kernel as
+  part of their job responsibilities.
+* Software Engineers will be supported to attend Linux-related
+  conferences as a part of their job.
+* A Software Engineer’s upstream code contributions will be considered
+  in promotion and performance reviews.
+
+Level 3
+=======
+
+* Software Engineers are expected to review patches (including patches
+  authored by engineers from other companies) as part of their job
+  responsibilities
+* Contributing presentations or papers to Linux-related or academic
+  conferences (such those organized by the Linux Foundation, Usenix,
+  ACM, etc.), are considered part of an engineer’s work.
+* A Software Engineer’s community contributions will be considered in
+  promotion and performance reviews.
+* Organizations will regularly report metrics of their open source
+  contributions and track these metrics over time.  These metrics may be
+  published only internally within the organization, or at the
+  organization’s discretion, some or all may be published externally.
+  Metrics that are strongly suggested include:
+
+  * The number of upstream kernel contributions by team or organization
+    (e.g., all people reporting up to a manager, director, or VP).
+  * The percentage of kernel developers who have made upstream
+    contributions relative to the total kernel developers in the
+    organization.
+  * The time interval between kernels used in the organization’s servers
+    and/or products, and the publication date of the upstream kernel
+    upon which the internal kernel is based.
+  * The number of out-of-tree commits present in internal kernels.
+
+Level 4
+=======
+
+* Software Engineers are encouraged to spend a portion of their work
+  time focused on Upstream Work, which is defined as reviewing patches,
+  serving on program committees, improving core project infrastructure
+  such as writing or maintaining tests, upstream tech debt reduction,
+  writing documentation, etc.
+* Software Engineers are supported in helping to organize Linux-related
+  conferences.
+* Organizations will consider community member feedback in official
+  performance reviews.
+
+Level 5
+=======
+
+* Upstream kernel development is considered a formal job position, with
+  at least a third of the engineer’s time spent doing Upstream Work.
+* Organizations will actively seek out community member feedback as a
+  factor in official performance reviews.
+* Organizations will regularly report internally on the ratio of
+  Upstream Work to work focused on directly pursuing business goals.
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 565df595152e..b501cd977053 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -57,6 +57,7 @@ Other guides to the community that are of interest to most developers are:
    deprecated
    maintainers
    researcher-guidelines
+   contribution-maturity-model
 
 These are some overall technical guides that have been put here for now for
 lack of a better place.
diff --git a/Documentation/process/kernel-docs.rst b/Documentation/process/kernel-docs.rst
index 1c6e2ab92f4e..46f927aae6eb 100644
--- a/Documentation/process/kernel-docs.rst
+++ b/Documentation/process/kernel-docs.rst
@@ -75,13 +75,39 @@ On-line docs
 Published books
 ---------------
 
+    * Title: **Linux Kernel Debugging: Leverage proven tools and advanced techniques to effectively debug Linux kernels and kernel modules**
+
+      :Author: Kaiwan N Billimoria
+      :Publisher: Packt Publishing Ltd
+      :Date: August, 2022
+      :Pages: 638
+      :ISBN: 978-1801075039
+      :Notes: Debugging book
+
     * Title: **Linux Kernel Programming: A Comprehensive Guide to Kernel Internals, Writing Kernel Modules, and Kernel Synchronization**
 
-          :Author: Kaiwan N. Billimoria
-          :Publisher: Packt Publishing Ltd
-          :Date: 2021
-          :Pages: 754
-          :ISBN: 978-1789953435
+      :Author: Kaiwan N Billimoria
+      :Publisher: Packt Publishing Ltd
+      :Date: March, 2021
+      :Pages: 754
+      :ISBN: 978-1789953435
+
+    * Title: **Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization: Create user-kernel interfaces, work with peripheral I/O, and handle hardware interrupts**
+
+      :Author: Kaiwan N Billimoria
+      :Publisher: Packt Publishing Ltd
+      :Date: March, 2021
+      :Pages: 452
+      :ISBN: 978-1801079518
+
+    * Title: **Linux System Programming: Talking Directly to the Kernel and C Library**
+
+      :Author: Robert Love
+      :Publisher: O'Reilly Media
+      :Date: June, 2013
+      :Pages: 456
+      :ISBN: 978-1449339531
+      :Notes: Foundational book
 
     * Title: **Linux Kernel Development, 3rd Edition**
 
diff --git a/Documentation/process/maintainer-tip.rst b/Documentation/process/maintainer-tip.rst
index 572a3289c9cb..178c95fd17dc 100644
--- a/Documentation/process/maintainer-tip.rst
+++ b/Documentation/process/maintainer-tip.rst
@@ -128,8 +128,8 @@ uppercase letter and should be written in imperative tone.
 Changelog
 ^^^^^^^^^
 
-The general rules about changelogs in the process documentation, see
-:ref:`Documentation/process/ <submittingpatches>`, apply.
+The general rules about changelogs in the :ref:`Submitting patches guide
+<describe_changes>`, apply.
 
 The tip tree maintainers set value on following these rules, especially on
 the request to write changelogs in imperative mood and not impersonating
diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index 828997bc9ff9..7a5619fecb38 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -223,20 +223,17 @@ patch.
 Select the recipients for your patch
 ------------------------------------
 
-You should always copy the appropriate subsystem maintainer(s) on any patch
-to code that they maintain; look through the MAINTAINERS file and the
-source code revision history to see who those maintainers are.  The
-script scripts/get_maintainer.pl can be very useful at this step (pass paths to
-your patches as arguments to scripts/get_maintainer.pl).  If you cannot find a
+You should always copy the appropriate subsystem maintainer(s) and list(s) on
+any patch to code that they maintain; look through the MAINTAINERS file and the
+source code revision history to see who those maintainers are.  The script
+scripts/get_maintainer.pl can be very useful at this step (pass paths to your
+patches as arguments to scripts/get_maintainer.pl).  If you cannot find a
 maintainer for the subsystem you are working on, Andrew Morton
 (akpm@linux-foundation.org) serves as a maintainer of last resort.
 
-You should also normally choose at least one mailing list to receive a copy
-of your patch set.  linux-kernel@vger.kernel.org should be used by default
-for all patches, but the volume on that list has caused a number of
-developers to tune it out.  Look in the MAINTAINERS file for a
-subsystem-specific list; your patch will probably get more attention there.
-Please do not spam unrelated lists, though.
+linux-kernel@vger.kernel.org should be used by default for all patches, but the
+volume on that list has caused a number of developers to tune it out.  Please
+do not spam unrelated lists and unrelated people, though.
 
 Many kernel-related lists are hosted on vger.kernel.org; you can find a
 list of them at http://vger.kernel.org/vger-lists.html.  There are