docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
commit 627f01eab93d8671d4e4afee9b148f9998d20e7c upstream.
One of the changes in Sphinx 5.0.0 [1] says [sic]:
5.0.0 final
- #10474: language does not accept None as it value.
The default value of language becomes to 'en' now.
[1]: https://www.sphinx-doc.org/en/master/changes.html#release-5-0-0-released-may-30-2022
It results in a new warning from Sphinx 5.0.0 [sic]:
WARNING: Invalid configuration value found: 'language = None'.
Update your configuration to a valid langauge code. Falling
back to 'en' (English).
Silence the warning by using 'en'.
It works with all the Sphinx versions required for building
kernel documentation (1.7.9 or later).
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/bd0c2ddc-2401-03cb-4526-79ca664e1cbe@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/conf.py b/Documentation/conf.py
index 329c519..2f74cf1 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -96,7 +96,7 @@
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used: