Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/Documentation/s390/index.rst b/Documentation/s390/index.rst
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+=================
+s390 Architecture
+=================
+
+.. toctree::
+ :maxdepth: 1
+
+ cds
+ 3270
+ driver-model
+ monreader
+ qeth
+ s390dbf
+ vfio-ap
+ vfio-ccw
+ zfcpdump
+ common_io
+
+ text_files
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`