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From:   Carlos Bilbao <carlos.bilbao@amd.com>
To:     <ojeda@kernel.org>, <corbet@lwn.net>, <akiyks@gmail.com>,
        <jani.nikula@linux.intel.com>, <rdunlap@infradead.org>
CC:     <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <konstantin@linuxfoundation.org>,
        Carlos Bilbao <carlos.bilbao@amd.com>
Subject: [PATCH v4 2/2] docs: Integrate rustdoc generation into htmldocs
Date:   Wed, 7 Dec 2022 11:30:53 -0600
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Change target `make htmldocs` to combine RST Sphinx and the generation of
Rust documentation, when support is available.

Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
---
 Documentation/Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/Makefile b/Documentation/Makefile
index 64d44c1ecad3..701ccb07e873 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -59,6 +59,10 @@ PAPEROPT_letter = -D latex_paper_size=letter
 KERNELDOC       = $(srctree)/scripts/kernel-doc
 KERNELDOC_CONF  = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
 ALLSPHINXOPTS   =  $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
+ifeq ($(CONFIG_RUST),y)
+# Let Sphinx know we will include rustdoc
+ALLSPHINXOPTS   +=  -t rustdoc
+endif
 # the i18n builder cannot share the environment and doctrees with the others
 I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
 
@@ -94,6 +98,10 @@ quiet_cmd_sphinx = SPHINX  $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
 htmldocs:
 	@$(srctree)/scripts/sphinx-pre-install --version-check
 	@+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
+# If Rust support is available, add rustdoc generated contents
+ifeq ($(CONFIG_RUST),y)
+	$(Q)$(MAKE) rustdoc
+endif
 
 linkcheckdocs:
 	@$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
-- 
2.34.1