[PATCH v5 11/15] docs: use parser_yaml extension to handle Netlink specs

Instead of manually calling ynl_gen_rst.py, use a Sphinx extension.
This way, no .rst files would be written to the Kernel source
directories.

We are using here a toctree with :glob: property. This way, there
is no need to touch the netlink/specs/index.rst file every time
a new Netlink spec is added/renamed/removed.

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
 Documentation/Makefile                          | 17 -----------------
 Documentation/conf.py                           | 13 +++++++------
 Documentation/networking/index.rst              |  2 +-
 .../networking/netlink_spec/readme.txt          |  4 ----
 4 files changed, 8 insertions(+), 28 deletions(-)
 delete mode 100644 Documentation/networking/netlink_spec/readme.txt

diff --git a/Documentation/Makefile b/Documentation/Makefile
index b98477df5ddf..820f07e0afe6 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -104,22 +104,6 @@ quiet_cmd_sphinx = SPHINX  $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
 		cp $(if $(patsubst /%,,$(DOCS_CSS)),$(abspath $(srctree)/$(DOCS_CSS)),$(DOCS_CSS)) $(BUILDDIR)/$3/_static/; \
 	fi
 
-YNL_INDEX:=$(srctree)/Documentation/networking/netlink_spec/index.rst
-YNL_RST_DIR:=$(srctree)/Documentation/networking/netlink_spec
-YNL_YAML_DIR:=$(srctree)/Documentation/netlink/specs
-YNL_TOOL:=$(srctree)/tools/net/ynl/pyynl/ynl_gen_rst.py
-
-YNL_RST_FILES_TMP := $(patsubst %.yaml,%.rst,$(wildcard $(YNL_YAML_DIR)/*.yaml))
-YNL_RST_FILES := $(patsubst $(YNL_YAML_DIR)%,$(YNL_RST_DIR)%, $(YNL_RST_FILES_TMP))
-
-$(YNL_INDEX): $(YNL_RST_FILES)
-	$(Q)$(YNL_TOOL) -o $@ -x
-
-$(YNL_RST_DIR)/%.rst: $(YNL_YAML_DIR)/%.yaml $(YNL_TOOL)
-	$(Q)$(YNL_TOOL) -i $< -o $@
-
-htmldocs texinfodocs latexdocs epubdocs xmldocs: $(YNL_INDEX)
-
 htmldocs:
 	@$(srctree)/scripts/sphinx-pre-install --version-check
 	@+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
@@ -186,7 +170,6 @@ refcheckdocs:
 	$(Q)cd $(srctree);scripts/documentation-file-ref-check
 
 cleandocs:
-	$(Q)rm -f $(YNL_INDEX) $(YNL_RST_FILES)
 	$(Q)rm -rf $(BUILDDIR)
 	$(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media clean
 
diff --git a/Documentation/conf.py b/Documentation/conf.py
index e887c1b786a4..a17940ac730f 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -25,7 +25,7 @@ include_patterns = ['**.rst']
 exclude_patterns = []
 
 # List of patterns that contain directory names in glob format.
-dyn_include_patterns = []
+dyn_include_patterns = ['netlink/specs/*.yaml']
 dyn_exclude_patterns = ['output']
 
 # Properly handle include/exclude patterns
@@ -93,7 +93,7 @@ needs_sphinx = '3.4.3'
 extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include',
               'kfigure', 'sphinx.ext.ifconfig', 'automarkup',
               'maintainers_include', 'sphinx.ext.autosectionlabel',
-              'kernel_abi', 'kernel_feat', 'translations']
+              'kernel_abi', 'kernel_feat', 'translations', 'parser_yaml']
 
 # Since Sphinx version 3, the C function parser is more pedantic with regards
 # to type checking. Due to that, having macros at c:function cause problems.
@@ -191,10 +191,11 @@ else:
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['sphinx/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 suffixes of source filenames that will be automatically parsed
+source_suffix = {
+        '.rst': 'restructuredtext',
+        '.yaml': 'yaml',
+}
 
 # The encoding of source files.
 #source_encoding = 'utf-8-sig'
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
index ac90b82f3ce9..b7a4969e9bc9 100644
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -57,7 +57,7 @@ Contents:
    filter
    generic-hdlc
    generic_netlink
-   netlink_spec/index
+   ../netlink/specs/index
    gen_stats
    gtp
    ila
diff --git a/Documentation/networking/netlink_spec/readme.txt b/Documentation/networking/netlink_spec/readme.txt
deleted file mode 100644
index 030b44aca4e6..000000000000
--- a/Documentation/networking/netlink_spec/readme.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-SPDX-License-Identifier: GPL-2.0
-
-This file is populated during the build of the documentation (htmldocs) by the
-tools/net/ynl/pyynl/ynl_gen_rst.py script.
-- 
2.49.0