Documentation/conf.py - linux - Git at Google

 # -*- coding: utf-8 -*-
 #
 # The Linux Kernel documentation build configuration file, created by
 # sphinx-quickstart on Fri Feb 12 13:51:46 2016.
 #
 # This file is execfile()d with the current directory set to its
 # containing dir.
 #
 # Note that not all possible configuration values are present in this
 # autogenerated file.
 #
 # All configuration values have a default; values that are commented out
 # serve to show the default.

 import sys
 import os
 import sphinx

 # Get Sphinx version
 major, minor, patch = sphinx.version_info[:3]


 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 sys.path.insert(0, os.path.abspath('sphinx'))
 from load_config import loadConfig

 # -- General configuration ------------------------------------------------

 # If your documentation needs a minimal Sphinx version, state it here.
 needs_sphinx = '1.7'

 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include',
               'kfigure', 'sphinx.ext.ifconfig', 'automarkup',
               'maintainers_include', 'sphinx.ext.autosectionlabel',
               'kernel_abi', 'kernel_feat']

 if major >= 3:
     if (major > 3) or (minor > 0 or patch >= 2):
         # Sphinx c function parser is more pedantic with regards to type
         # checking. Due to that, having macros at c:function cause problems.
         # Those needed to be scaped by using c_id_attributes[] array
         c_id_attributes = [
             # GCC Compiler types not parsed by Sphinx:
             "__restrict__",

             # include/linux/compiler_types.h:
             "__iomem",
             "__kernel",
             "noinstr",
             "notrace",
             "__percpu",
             "__rcu",
             "__user",

             # include/linux/compiler_attributes.h:
             "__alias",
             "__aligned",
             "__aligned_largest",
             "__always_inline",
             "__assume_aligned",
             "__cold",
             "__attribute_const__",
             "__copy",
             "__pure",
             "__designated_init",
             "__visible",
             "__printf",
             "__scanf",
             "__gnu_inline",
             "__malloc",
             "__mode",
             "__no_caller_saved_registers",
             "__noclone",
             "__nonstring",
             "__noreturn",
             "__packed",
             "__pure",
             "__section",
             "__always_unused",
             "__maybe_unused",
             "__used",
             "__weak",
             "noinline",

             # include/linux/memblock.h:
             "__init_memblock",
             "__meminit",

             # include/linux/init.h:
             "__init",
             "__ref",

             # include/linux/linkage.h:
             "asmlinkage",
         ]

 else:
     extensions.append('cdomain')

 # Ensure that autosectionlabel will produce unique names
 autosectionlabel_prefix_document = True
 autosectionlabel_maxdepth = 2

 extensions.append("sphinx.ext.imgmath")

 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']

 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 # source_suffix = ['.rst', '.md']
 source_suffix = '.rst'

 # The encoding of source files.
 #source_encoding = 'utf-8-sig'

 # The master toctree document.
 master_doc = 'index'

 # General information about the project.
 project = 'The Linux Kernel'
 copyright = 'The kernel development community'
 author = 'The kernel development community'

 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # In a normal build, version and release are are set to KERNELVERSION and
 # KERNELRELEASE, respectively, from the Makefile via Sphinx command line
 # arguments.
 #
 # The following code tries to extract the information by reading the Makefile,
 # when Sphinx is run directly (e.g. by Read the Docs).
 try:
     makefile_version = None
     makefile_patchlevel = None
     for line in open('../Makefile'):
         key, val = [x.strip() for x in line.split('=', 2)]
         if key == 'VERSION':
             makefile_version = val
         elif key == 'PATCHLEVEL':
             makefile_patchlevel = val
         if makefile_version and makefile_patchlevel:
             break
 except:
     pass
 finally:
     if makefile_version and makefile_patchlevel:
         version = release = makefile_version + '.' + makefile_patchlevel
     else:
         version = release = "unknown version"

 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
 language = 'en'

 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
 #today = ''
 # Else, today_fmt is used as the format for a strftime call.
 #today_fmt = '%B %d, %Y'

 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 exclude_patterns = ['output']

 # The reST default role (used for this markup: `text`) to use for all
 # documents.
 #default_role = None

 # If true, '()' will be appended to :func: etc. cross-reference text.
 #add_function_parentheses = True

 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
 #add_module_names = True

 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
 #show_authors = False

 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'

 # A list of ignored prefixes for module index sorting.
 #modindex_common_prefix = []

 # If true, keep warnings as "system message" paragraphs in the built documents.
 #keep_warnings = False

 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = False

 primary_domain = 'c'
 highlight_language = 'none'

 # -- Options for HTML output ----------------------------------------------

 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.

 # Default theme
 html_theme = 'sphinx_rtd_theme'
 html_css_files = []

 if "DOCS_THEME" in os.environ:
     html_theme = os.environ["DOCS_THEME"]

 if html_theme == 'sphinx_rtd_theme' or html_theme == 'sphinx_rtd_dark_mode':
     # Read the Docs theme
     try:
         import sphinx_rtd_theme
         html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

         # Add any paths that contain custom static files (such as style sheets) here,
         # relative to this directory. They are copied after the builtin static files,
         # so a file named "default.css" will overwrite the builtin "default.css".
         html_css_files = [
             'theme_overrides.css',
         ]

         # Read the Docs dark mode override theme
         if html_theme == 'sphinx_rtd_dark_mode':
             try:
                 import sphinx_rtd_dark_mode
                 extensions.append('sphinx_rtd_dark_mode')
             except ImportError:
                 html_theme == 'sphinx_rtd_theme'

         if html_theme == 'sphinx_rtd_theme':
                 # Add color-specific RTD normal mode
                 html_css_files.append('theme_rtd_colors.css')

     except ImportError:
         html_theme = 'classic'

 if "DOCS_CSS" in os.environ:
     css = os.environ["DOCS_CSS"].split(" ")

     for l in css:
         html_css_files.append(l)

 if major <= 1 and minor < 8:
     html_context = {
         'css_files': [],
     }

     for l in html_css_files:
         html_context['css_files'].append('_static/' + l)

 if  html_theme == 'classic':
     html_theme_options = {
         'rightsidebar':        False,
         'stickysidebar':       True,
         'collapsiblesidebar':  True,
         'externalrefs':        False,

         'footerbgcolor':       "white",
         'footertextcolor':     "white",
         'sidebarbgcolor':      "white",
         'sidebarbtncolor':     "black",
         'sidebartextcolor':    "black",
         'sidebarlinkcolor':    "#686bff",
         'relbarbgcolor':       "#133f52",
         'relbartextcolor':     "white",
         'relbarlinkcolor':     "white",
         'bgcolor':             "white",
         'textcolor':           "black",
         'headbgcolor':         "#f2f2f2",
         'headtextcolor':       "#20435c",
         'headlinkcolor':       "#c60f0f",
         'linkcolor':           "#355f7c",
         'visitedlinkcolor':    "#355f7c",
         'codebgcolor':         "#3f3f3f",
         'codetextcolor':       "white",

         'bodyfont':            "serif",
         'headfont':            "sans-serif",
     }

 sys.stderr.write("Using %s theme\n" % html_theme)

 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
 #html_theme_options = {}

 # Add any paths that contain custom themes here, relative to this directory.
 #html_theme_path = []

 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
 #html_title = None

 # A shorter title for the navigation bar.  Default is the same as html_title.
 #html_short_title = None

 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
 #html_logo = None

 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
 #html_favicon = None

 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['sphinx-static']

 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.
 #html_extra_path = []

 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
 #html_last_updated_fmt = '%b %d, %Y'

 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 html_use_smartypants = False

 # Custom sidebar templates, maps document names to template names.
 #html_sidebars = {}

 # Additional templates that should be rendered to pages, maps page names to
 # template names.
 #html_additional_pages = {}

 # If false, no module index is generated.
 #html_domain_indices = True

 # If false, no index is generated.
 #html_use_index = True

 # If true, the index is split into individual pages for each letter.
 #html_split_index = False

 # If true, links to the reST sources are added to the pages.
 #html_show_sourcelink = True

 # If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
 #html_show_sphinx = True

 # If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
 #html_show_copyright = True

 # If true, an OpenSearch description file will be output, and all pages will
 # contain a <link> tag referring to it.  The value of this option must be the
 # base URL from which the finished HTML is served.
 #html_use_opensearch = ''

 # This is the file name suffix for HTML files (e.g. ".xhtml").
 #html_file_suffix = None

 # Language to be used for generating the HTML full-text search index.
 # Sphinx supports the following languages:
 #   'da', 'de', 'en', 'es', 'fi', 'fr', 'h', 'it', 'ja'
 #   'nl', 'no', 'pt', 'ro', 'r', 'sv', 'tr'
 #html_search_language = 'en'

 # A dictionary with options for the search language support, empty by default.
 # Now only 'ja' uses this config value
 #html_search_options = {'type': 'default'}

 # The name of a javascript file (relative to the configuration directory) that
 # implements a search results scorer. If empty, the default will be used.
 #html_search_scorer = 'scorer.js'

 # Output file base name for HTML help builder.
 htmlhelp_basename = 'TheLinuxKerneldoc'

 # -- Options for LaTeX output ---------------------------------------------

 latex_elements = {
     # The paper size ('letterpaper' or 'a4paper').
     'papersize': 'a4paper',

     # The font size ('10pt', '11pt' or '12pt').
     'pointsize': '11pt',

     # Latex figure (float) alignment
     #'figure_align': 'htbp',

     # Don't mangle with UTF-8 chars
     'inputenc': '',
     'utf8extra': '',

     # Set document margins
     'sphinxsetup': '''
         hmargin=0.5in, vmargin=1in,
         parsedliteralwraps=true,
         verbatimhintsturnover=false,
     ''',

     # For CJK One-half spacing, need to be in front of hyperref
     'extrapackages': r'\usepackage{setspace}',

     # Additional stuff for the LaTeX preamble.
     'preamble': '''
         % Use some font with UTF-8 support with XeLaTeX
         \\usepackage{fontspec}
         \\setsansfont{DejaVu Sans}
         \\setromanfont{DejaVu Serif}
         \\setmonofont{DejaVu Sans Mono}
     ''',
 }

 # Fix reference escape troubles with Sphinx 1.4.x
 if major == 1:
     latex_elements['preamble']  += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'


 # Load kerneldoc specific LaTeX settings
 latex_elements['preamble'] += '''
         % Load kerneldoc specific LaTeX settings
 	\\input{kerneldoc-preamble.sty}
 '''

 # With Sphinx 1.6, it is possible to change the Bg color directly
 # by using:
 #	\definecolor{sphinxnoteBgColor}{RGB}{204,255,255}
 #	\definecolor{sphinxwarningBgColor}{RGB}{255,204,204}
 #	\definecolor{sphinxattentionBgColor}{RGB}{255,255,204}
 #	\definecolor{sphinximportantBgColor}{RGB}{192,255,204}
 #
 # However, it require to use sphinx heavy box with:
 #
 #	\renewenvironment{sphinxlightbox} {%
 #		\\begin{sphinxheavybox}
 #	}
 #		\\end{sphinxheavybox}
 #	}
 #
 # Unfortunately, the implementation is buggy: if a note is inside a
 # table, it isn't displayed well. So, for now, let's use boring
 # black and white notes.

 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 # Sorted in alphabetical order
 latex_documents = [
 ]

 # Add all other index files from Documentation/ subdirectories
 for fn in os.listdir('.'):
     doc = os.path.join(fn, "index")
     if os.path.exists(doc + ".rst"):
         has = False
         for l in latex_documents:
             if l[0] == doc:
                 has = True
                 break
         if not has:
             latex_documents.append((doc, fn + '.tex',
                                     'Linux %s Documentation' % fn.capitalize(),
                                     'The kernel development community',
                                     'manual'))

 # The name of an image file (relative to this directory) to place at the top of
 # the title page.
 #latex_logo = None

 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
 #latex_use_parts = False

 # If true, show page references after internal links.
 #latex_show_pagerefs = False

 # If true, show URL addresses after external links.
 #latex_show_urls = False

 # Documents to append as an appendix to all manuals.
 #latex_appendices = []

 # If false, no module index is generated.
 #latex_domain_indices = True

 # Additional LaTeX stuff to be copied to build directory
 latex_additional_files = [
     'sphinx/kerneldoc-preamble.sty',
 ]


 # -- Options for manual page output ---------------------------------------

 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
     (master_doc, 'thelinuxkernel', 'The Linux Kernel Documentation',
      [author], 1)
 ]

 # If true, show URL addresses after external links.
 #man_show_urls = False


 # -- Options for Texinfo output -------------------------------------------

 # Grouping the document tree into Texinfo files. List of tuples
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
     (master_doc, 'TheLinuxKernel', 'The Linux Kernel Documentation',
      author, 'TheLinuxKernel', 'One line description of project.',
      'Miscellaneous'),
 ]

 # Documents to append as an appendix to all manuals.
 #texinfo_appendices = []

 # If false, no module index is generated.
 #texinfo_domain_indices = True

 # How to display URL addresses: 'footnote', 'no', or 'inline'.
 #texinfo_show_urls = 'footnote'

 # If true, do not generate a @detailmenu in the "Top" node's menu.
 #texinfo_no_detailmenu = False


 # -- Options for Epub output ----------------------------------------------

 # Bibliographic Dublin Core info.
 epub_title = project
 epub_author = author
 epub_publisher = author
 epub_copyright = copyright

 # The basename for the epub file. It defaults to the project name.
 #epub_basename = project

 # The HTML theme for the epub output. Since the default themes are not
 # optimized for small screen space, using the same theme for HTML and epub
 # output is usually not wise. This defaults to 'epub', a theme designed to save
 # visual space.
 #epub_theme = 'epub'

 # The language of the text. It defaults to the language option
 # or 'en' if the language is not set.
 #epub_language = ''

 # The scheme of the identifier. Typical schemes are ISBN or URL.
 #epub_scheme = ''

 # The unique identifier of the text. This can be a ISBN number
 # or the project homepage.
 #epub_identifier = ''

 # A unique identification for the text.
 #epub_uid = ''

 # A tuple containing the cover image and cover page html template filenames.
 #epub_cover = ()

 # A sequence of (type, uri, title) tuples for the guide element of content.opf.
 #epub_guide = ()

 # HTML files that should be inserted before the pages created by sphinx.
 # The format is a list of tuples containing the path and title.
 #epub_pre_files = []

 # HTML files that should be inserted after the pages created by sphinx.
 # The format is a list of tuples containing the path and title.
 #epub_post_files = []

 # A list of files that should not be packed into the epub file.
 epub_exclude_files = ['search.html']

 # The depth of the table of contents in toc.ncx.
 #epub_tocdepth = 3

 # Allow duplicate toc entries.
 #epub_tocdup = True

 # Choose between 'default' and 'includehidden'.
 #epub_tocscope = 'default'

 # Fix unsupported image types using the Pillow.
 #epub_fix_images = False

 # Scale large images.
 #epub_max_image_width = 0

 # How to display URL addresses: 'footnote', 'no', or 'inline'.
 #epub_show_urls = 'inline'

 # If false, no index is generated.
 #epub_use_index = True

 #=======
 # rst2pdf
 #
 # Grouping the document tree into PDF files. List of tuples
 # (source start file, target name, title, author, options).
 #
 # See the Sphinx chapter of https://ralsina.me/static/manual.pdf
 #
 # FIXME: Do not add the index file here; the result will be too big. Adding
 # multiple PDF files here actually tries to get the cross-referencing right
 # *between* PDF files.
 pdf_documents = [
     ('kernel-documentation', u'Kernel', u'Kernel', u'J. Random Bozo'),
 ]

 # kernel-doc extension configuration for running Sphinx directly (e.g. by Read
 # the Docs). In a normal build, these are supplied from the Makefile via command
 # line arguments.
 kerneldoc_bin = '../scripts/kernel-doc'
 kerneldoc_srctree = '..'

 # ------------------------------------------------------------------------------
 # Since loadConfig overwrites settings from the global namespace, it has to be
 # the last statement in the conf.py file
 # ------------------------------------------------------------------------------
 loadConfig(globals())
	# -- coding: utf-8 --
	#
	# The Linux Kernel documentation build configuration file, created by
	# sphinx-quickstart on Fri Feb 12 13:51:46 2016.
	#
	# This file is execfile()d with the current directory set to its
	# containing dir.
	#
	# Note that not all possible configuration values are present in this
	# autogenerated file.
	#
	# All configuration values have a default; values that are commented out
	# serve to show the default.

	import sys
	import os
	import sphinx

	# Get Sphinx version
	major, minor, patch = sphinx.version_info[:3]


	# If extensions (or modules to document with autodoc) are in another directory,
	# add these directories to sys.path here. If the directory is relative to the
	# documentation root, use os.path.abspath to make it absolute, like shown here.
	sys.path.insert(0, os.path.abspath('sphinx'))
	from load_config import loadConfig

	# -- General configuration ------------------------------------------------

	# If your documentation needs a minimal Sphinx version, state it here.
	needs_sphinx = '1.7'

	# Add any Sphinx extension module names here, as strings. They can be
	# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
	# ones.
	extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include',
	'kfigure', 'sphinx.ext.ifconfig', 'automarkup',
	'maintainers_include', 'sphinx.ext.autosectionlabel',
	'kernel_abi', 'kernel_feat']

	if major >= 3:
	if (major > 3) or (minor > 0 or patch >= 2):
	# Sphinx c function parser is more pedantic with regards to type
	# checking. Due to that, having macros at c:function cause problems.
	# Those needed to be scaped by using c_id_attributes[] array
	c_id_attributes = [
	# GCC Compiler types not parsed by Sphinx:
	"__restrict__",

	# include/linux/compiler_types.h:
	"__iomem",
	"__kernel",
	"noinstr",
	"notrace",
	"__percpu",
	"__rcu",
	"__user",

	# include/linux/compiler_attributes.h:
	"__alias",
	"__aligned",
	"__aligned_largest",
	"__always_inline",
	"__assume_aligned",
	"__cold",
	"__attribute_const__",
	"__copy",
	"__pure",
	"__designated_init",
	"__visible",
	"__printf",
	"__scanf",
	"__gnu_inline",
	"__malloc",
	"__mode",
	"__no_caller_saved_registers",
	"__noclone",
	"__nonstring",
	"__noreturn",
	"__packed",
	"__pure",
	"__section",
	"__always_unused",
	"__maybe_unused",
	"__used",
	"__weak",
	"noinline",

	# include/linux/memblock.h:
	"__init_memblock",
	"__meminit",

	# include/linux/init.h:
	"__init",
	"__ref",

	# include/linux/linkage.h:
	"asmlinkage",
	]

	else:
	extensions.append('cdomain')

	# Ensure that autosectionlabel will produce unique names
	autosectionlabel_prefix_document = True
	autosectionlabel_maxdepth = 2

	extensions.append("sphinx.ext.imgmath")

	# Add any paths that contain templates here, relative to this directory.
	templates_path = ['_templates']

	# The suffix(es) of source filenames.
	# You can specify multiple suffix as a list of string:
	# source_suffix = ['.rst', '.md']
	source_suffix = '.rst'

	# The encoding of source files.
	#source_encoding = 'utf-8-sig'

	# The master toctree document.
	master_doc = 'index'

	# General information about the project.
	project = 'The Linux Kernel'
	copyright = 'The kernel development community'
	author = 'The kernel development community'

	# The version info for the project you're documenting, acts as replacement for
	# \|version\| and \|release\|, also used in various other places throughout the
	# built documents.
	#
	# In a normal build, version and release are are set to KERNELVERSION and
	# KERNELRELEASE, respectively, from the Makefile via Sphinx command line
	# arguments.
	#
	# The following code tries to extract the information by reading the Makefile,
	# when Sphinx is run directly (e.g. by Read the Docs).
	try:
	makefile_version = None
	makefile_patchlevel = None
	for line in open('../Makefile'):
	key, val = [x.strip() for x in line.split('=', 2)]
	if key == 'VERSION':
	makefile_version = val
	elif key == 'PATCHLEVEL':
	makefile_patchlevel = val
	if makefile_version and makefile_patchlevel:
	break
	except:
	pass
	finally:
	if makefile_version and makefile_patchlevel:
	version = release = makefile_version + '.' + makefile_patchlevel
	else:
	version = release = "unknown version"

	# The language for content autogenerated by Sphinx. Refer to documentation
	# for a list of supported languages.
	#
	# This is also used if you do content translation via gettext catalogs.
	# Usually you set "language" from the command line for these cases.
	language = 'en'

	# There are two options for replacing \|today\|: either, you set today to some
	# non-false value, then it is used:
	#today = ''
	# Else, today_fmt is used as the format for a strftime call.
	#today_fmt = '%B %d, %Y'

	# List of patterns, relative to source directory, that match files and
	# directories to ignore when looking for source files.
	exclude_patterns = ['output']

	# The reST default role (used for this markup: `text`) to use for all
	# documents.
	#default_role = None

	# If true, '()' will be appended to :func: etc. cross-reference text.
	#add_function_parentheses = True

	# If true, the current module name will be prepended to all description
	# unit titles (such as .. function::).
	#add_module_names = True

	# If true, sectionauthor and moduleauthor directives will be shown in the
	# output. They are ignored by default.
	#show_authors = False

	# The name of the Pygments (syntax highlighting) style to use.
	pygments_style = 'sphinx'

	# A list of ignored prefixes for module index sorting.
	#modindex_common_prefix = []

	# If true, keep warnings as "system message" paragraphs in the built documents.
	#keep_warnings = False

	# If true, `todo` and `todoList` produce output, else they produce nothing.
	todo_include_todos = False

	primary_domain = 'c'
	highlight_language = 'none'

	# -- Options for HTML output ----------------------------------------------

	# The theme to use for HTML and HTML Help pages. See the documentation for
	# a list of builtin themes.

	# Default theme
	html_theme = 'sphinx_rtd_theme'
	html_css_files = []

	if "DOCS_THEME" in os.environ:
	html_theme = os.environ["DOCS_THEME"]

	if html_theme == 'sphinx_rtd_theme' or html_theme == 'sphinx_rtd_dark_mode':
	# Read the Docs theme
	try:
	import sphinx_rtd_theme
	html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

	# Add any paths that contain custom static files (such as style sheets) here,
	# relative to this directory. They are copied after the builtin static files,
	# so a file named "default.css" will overwrite the builtin "default.css".
	html_css_files = [
	'theme_overrides.css',
	]

	# Read the Docs dark mode override theme
	if html_theme == 'sphinx_rtd_dark_mode':
	try:
	import sphinx_rtd_dark_mode
	extensions.append('sphinx_rtd_dark_mode')
	except ImportError:
	html_theme == 'sphinx_rtd_theme'

	if html_theme == 'sphinx_rtd_theme':
	# Add color-specific RTD normal mode
	html_css_files.append('theme_rtd_colors.css')

	except ImportError:
	html_theme = 'classic'

	if "DOCS_CSS" in os.environ:
	css = os.environ["DOCS_CSS"].split(" ")

	for l in css:
	html_css_files.append(l)

	if major <= 1 and minor < 8:
	html_context = {
	'css_files': [],
	}

	for l in html_css_files:
	html_context['css_files'].append('_static/' + l)

	if html_theme == 'classic':
	html_theme_options = {
	'rightsidebar': False,
	'stickysidebar': True,
	'collapsiblesidebar': True,
	'externalrefs': False,

	'footerbgcolor': "white",
	'footertextcolor': "white",
	'sidebarbgcolor': "white",
	'sidebarbtncolor': "black",
	'sidebartextcolor': "black",
	'sidebarlinkcolor': "#686bff",
	'relbarbgcolor': "#133f52",
	'relbartextcolor': "white",
	'relbarlinkcolor': "white",
	'bgcolor': "white",
	'textcolor': "black",
	'headbgcolor': "#f2f2f2",
	'headtextcolor': "#20435c",
	'headlinkcolor': "#c60f0f",
	'linkcolor': "#355f7c",
	'visitedlinkcolor': "#355f7c",
	'codebgcolor': "#3f3f3f",
	'codetextcolor': "white",

	'bodyfont': "serif",
	'headfont': "sans-serif",
	}

	sys.stderr.write("Using %s theme\n" % html_theme)

	# Theme options are theme-specific and customize the look and feel of a theme
	# further. For a list of options available for each theme, see the
	# documentation.
	#html_theme_options = {}

	# Add any paths that contain custom themes here, relative to this directory.
	#html_theme_path = []

	# The name for this set of Sphinx documents. If None, it defaults to
	# "<project> v<release> documentation".
	#html_title = None

	# A shorter title for the navigation bar. Default is the same as html_title.
	#html_short_title = None

	# The name of an image file (relative to this directory) to place at the top
	# of the sidebar.
	#html_logo = None

	# The name of an image file (within the static path) to use as favicon of the
	# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
	# pixels large.
	#html_favicon = None

	# Add any paths that contain custom static files (such as style sheets) here,
	# relative to this directory. They are copied after the builtin static files,
	# so a file named "default.css" will overwrite the builtin "default.css".
	html_static_path = ['sphinx-static']

	# Add any extra paths that contain custom files (such as robots.txt or
	# .htaccess) here, relative to this directory. These files are copied
	# directly to the root of the documentation.
	#html_extra_path = []

	# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
	# using the given strftime format.
	#html_last_updated_fmt = '%b %d, %Y'

	# If true, SmartyPants will be used to convert quotes and dashes to
	# typographically correct entities.
	html_use_smartypants = False

	# Custom sidebar templates, maps document names to template names.
	#html_sidebars = {}

	# Additional templates that should be rendered to pages, maps page names to
	# template names.
	#html_additional_pages = {}

	# If false, no module index is generated.
	#html_domain_indices = True

	# If false, no index is generated.
	#html_use_index = True

	# If true, the index is split into individual pages for each letter.
	#html_split_index = False

	# If true, links to the reST sources are added to the pages.
	#html_show_sourcelink = True

	# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
	#html_show_sphinx = True

	# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
	#html_show_copyright = True

	# If true, an OpenSearch description file will be output, and all pages will
	# contain a <link> tag referring to it. The value of this option must be the
	# base URL from which the finished HTML is served.
	#html_use_opensearch = ''

	# This is the file name suffix for HTML files (e.g. ".xhtml").
	#html_file_suffix = None

	# Language to be used for generating the HTML full-text search index.
	# Sphinx supports the following languages:
	# 'da', 'de', 'en', 'es', 'fi', 'fr', 'h', 'it', 'ja'
	# 'nl', 'no', 'pt', 'ro', 'r', 'sv', 'tr'
	#html_search_language = 'en'

	# A dictionary with options for the search language support, empty by default.
	# Now only 'ja' uses this config value
	#html_search_options = {'type': 'default'}

	# The name of a javascript file (relative to the configuration directory) that
	# implements a search results scorer. If empty, the default will be used.
	#html_search_scorer = 'scorer.js'

	# Output file base name for HTML help builder.
	htmlhelp_basename = 'TheLinuxKerneldoc'

	# -- Options for LaTeX output ---------------------------------------------

	latex_elements = {
	# The paper size ('letterpaper' or 'a4paper').
	'papersize': 'a4paper',

	# The font size ('10pt', '11pt' or '12pt').
	'pointsize': '11pt',

	# Latex figure (float) alignment
	#'figure_align': 'htbp',

	# Don't mangle with UTF-8 chars
	'inputenc': '',
	'utf8extra': '',

	# Set document margins
	'sphinxsetup': '''
	hmargin=0.5in, vmargin=1in,
	parsedliteralwraps=true,
	verbatimhintsturnover=false,
	''',

	# For CJK One-half spacing, need to be in front of hyperref
	'extrapackages': r'\usepackage{setspace}',

	# Additional stuff for the LaTeX preamble.
	'preamble': '''
	% Use some font with UTF-8 support with XeLaTeX
	\\usepackage{fontspec}
	\\setsansfont{DejaVu Sans}
	\\setromanfont{DejaVu Serif}
	\\setmonofont{DejaVu Sans Mono}
	''',
	}

	# Fix reference escape troubles with Sphinx 1.4.x
	if major == 1:
	latex_elements['preamble'] += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'


	# Load kerneldoc specific LaTeX settings
	latex_elements['preamble'] += '''
	% Load kerneldoc specific LaTeX settings
	\\input{kerneldoc-preamble.sty}
	'''

	# With Sphinx 1.6, it is possible to change the Bg color directly
	# by using:
	# \definecolor{sphinxnoteBgColor}{RGB}{204,255,255}
	# \definecolor{sphinxwarningBgColor}{RGB}{255,204,204}
	# \definecolor{sphinxattentionBgColor}{RGB}{255,255,204}
	# \definecolor{sphinximportantBgColor}{RGB}{192,255,204}
	#
	# However, it require to use sphinx heavy box with:
	#
	# \renewenvironment{sphinxlightbox} {%
	# \\begin{sphinxheavybox}
	# }
	# \\end{sphinxheavybox}
	# }
	#
	# Unfortunately, the implementation is buggy: if a note is inside a
	# table, it isn't displayed well. So, for now, let's use boring
	# black and white notes.

	# Grouping the document tree into LaTeX files. List of tuples
	# (source start file, target name, title,
	# author, documentclass [howto, manual, or own class]).
	# Sorted in alphabetical order
	latex_documents = [
	]

	# Add all other index files from Documentation/ subdirectories
	for fn in os.listdir('.'):
	doc = os.path.join(fn, "index")
	if os.path.exists(doc + ".rst"):
	has = False
	for l in latex_documents:
	if l[0] == doc:
	has = True
	break
	if not has:
	latex_documents.append((doc, fn + '.tex',
	'Linux %s Documentation' % fn.capitalize(),
	'The kernel development community',
	'manual'))

	# The name of an image file (relative to this directory) to place at the top of
	# the title page.
	#latex_logo = None

	# For "manual" documents, if this is true, then toplevel headings are parts,
	# not chapters.
	#latex_use_parts = False

	# If true, show page references after internal links.
	#latex_show_pagerefs = False

	# If true, show URL addresses after external links.
	#latex_show_urls = False

	# Documents to append as an appendix to all manuals.
	#latex_appendices = []

	# If false, no module index is generated.
	#latex_domain_indices = True

	# Additional LaTeX stuff to be copied to build directory
	latex_additional_files = [
	'sphinx/kerneldoc-preamble.sty',
	]


	# -- Options for manual page output ---------------------------------------

	# One entry per manual page. List of tuples
	# (source start file, name, description, authors, manual section).
	man_pages = [
	(master_doc, 'thelinuxkernel', 'The Linux Kernel Documentation',
	[author], 1)
	]

	# If true, show URL addresses after external links.
	#man_show_urls = False


	# -- Options for Texinfo output -------------------------------------------

	# Grouping the document tree into Texinfo files. List of tuples
	# (source start file, target name, title, author,
	# dir menu entry, description, category)
	texinfo_documents = [
	(master_doc, 'TheLinuxKernel', 'The Linux Kernel Documentation',
	author, 'TheLinuxKernel', 'One line description of project.',
	'Miscellaneous'),
	]

	# Documents to append as an appendix to all manuals.
	#texinfo_appendices = []

	# If false, no module index is generated.
	#texinfo_domain_indices = True

	# How to display URL addresses: 'footnote', 'no', or 'inline'.
	#texinfo_show_urls = 'footnote'

	# If true, do not generate a @detailmenu in the "Top" node's menu.
	#texinfo_no_detailmenu = False


	# -- Options for Epub output ----------------------------------------------

	# Bibliographic Dublin Core info.
	epub_title = project
	epub_author = author
	epub_publisher = author
	epub_copyright = copyright

	# The basename for the epub file. It defaults to the project name.
	#epub_basename = project

	# The HTML theme for the epub output. Since the default themes are not
	# optimized for small screen space, using the same theme for HTML and epub
	# output is usually not wise. This defaults to 'epub', a theme designed to save
	# visual space.
	#epub_theme = 'epub'

	# The language of the text. It defaults to the language option
	# or 'en' if the language is not set.
	#epub_language = ''

	# The scheme of the identifier. Typical schemes are ISBN or URL.
	#epub_scheme = ''

	# The unique identifier of the text. This can be a ISBN number
	# or the project homepage.
	#epub_identifier = ''

	# A unique identification for the text.
	#epub_uid = ''

	# A tuple containing the cover image and cover page html template filenames.
	#epub_cover = ()

	# A sequence of (type, uri, title) tuples for the guide element of content.opf.
	#epub_guide = ()

	# HTML files that should be inserted before the pages created by sphinx.
	# The format is a list of tuples containing the path and title.
	#epub_pre_files = []

	# HTML files that should be inserted after the pages created by sphinx.
	# The format is a list of tuples containing the path and title.
	#epub_post_files = []

	# A list of files that should not be packed into the epub file.
	epub_exclude_files = ['search.html']

	# The depth of the table of contents in toc.ncx.
	#epub_tocdepth = 3

	# Allow duplicate toc entries.
	#epub_tocdup = True

	# Choose between 'default' and 'includehidden'.
	#epub_tocscope = 'default'

	# Fix unsupported image types using the Pillow.
	#epub_fix_images = False

	# Scale large images.
	#epub_max_image_width = 0

	# How to display URL addresses: 'footnote', 'no', or 'inline'.
	#epub_show_urls = 'inline'

	# If false, no index is generated.
	#epub_use_index = True

	#=======
	# rst2pdf
	#
	# Grouping the document tree into PDF files. List of tuples
	# (source start file, target name, title, author, options).
	#
	# See the Sphinx chapter of https://ralsina.me/static/manual.pdf
	#
	# FIXME: Do not add the index file here; the result will be too big. Adding
	# multiple PDF files here actually tries to get the cross-referencing right
	# between PDF files.
	pdf_documents = [
	('kernel-documentation', u'Kernel', u'Kernel', u'J. Random Bozo'),
	]

	# kernel-doc extension configuration for running Sphinx directly (e.g. by Read
	# the Docs). In a normal build, these are supplied from the Makefile via command
	# line arguments.
	kerneldoc_bin = '../scripts/kernel-doc'
	kerneldoc_srctree = '..'

	# ------------------------------------------------------------------------------
	# Since loadConfig overwrites settings from the global namespace, it has to be
	# the last statement in the conf.py file
	# ------------------------------------------------------------------------------
	loadConfig(globals())