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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Akira Yokosawa <akiyks@gmail.com>,
        Jonathan Corbet <corbet@lwn.net>
Subject: [PATCH 4.14 134/218] docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
Date:   Mon, 13 Jun 2022 12:09:52 +0200
Message-Id: <20220613094924.647845896@linuxfoundation.org>
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From: Akira Yokosawa <akiyks@gmail.com>

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>
---
 Documentation/conf.py |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -96,7 +96,7 @@ finally:
 #
 # 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: