Move our minimum Sphinx version to 1.7

As promised, drop support for some ancient sphinx releases, along with a
lot of the cruft that was required to make that support work.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>

5 files changed, 18 insertions, 94 deletions

diff --git a/Documentation/sphinx/cdomain.py b/Documentation/sphinx/cdomain.py
index 014a5229e57a..ca8ac9e59ded 100644
--- a/Documentation/sphinx/cdomain.py
+++ b/Documentation/sphinx/cdomain.py
@@ -236,13 +236,7 @@ class CObject(Base_CObject):
 
         indextext = self.get_index_text(name)
         if indextext:
-            if major == 1 and minor < 4:
-                # indexnode's tuple changed in 1.4
-                # https://github.com/sphinx-doc/sphinx/commit/e6a5a3a92e938fcd75866b4227db9e0524d58f7c
-                self.indexnode['entries'].append(
-                    ('single', indextext, targetname, ''))
-            else:
-                self.indexnode['entries'].append(
+            self.indexnode['entries'].append(
                     ('single', indextext, targetname, '', None))
 
 class CDomain(Base_CDomain):
diff --git a/Documentation/sphinx/kernel_abi.py b/Documentation/sphinx/kernel_abi.py
index f3da859c9878..efe760e410c4 100644
--- a/Documentation/sphinx/kernel_abi.py
+++ b/Documentation/sphinx/kernel_abi.py
@@ -45,17 +45,7 @@ from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
 from docutils.utils.error_reporting import ErrorString
-
-#
-# AutodocReporter is only good up to Sphinx 1.7
-#
-import sphinx
-
-Use_SSI = sphinx.__version__[:3] >= '1.7'
-if Use_SSI:
-    from sphinx.util.docutils import switch_source_input
-else:
-    from sphinx.ext.autodoc import AutodocReporter
+from sphinx.util.docutils import switch_source_input
 
 __version__  = '1.0'
 
@@ -179,16 +169,5 @@ class KernelCmd(Directive):
         return node.children
 
     def do_parse(self, content, node):
-        if Use_SSI:
-            with switch_source_input(self.state, content):
-                self.state.nested_parse(content, 0, node, match_titles=1)
-        else:
-            buf  = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
-
-            self.state.memo.title_styles  = []
-            self.state.memo.section_level = 0
-            self.state.memo.reporter      = AutodocReporter(content, self.state.memo.reporter)
-            try:
-                self.state.nested_parse(content, 0, node, match_titles=1)
-            finally:
-                self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
+        with switch_source_input(self.state, content):
+            self.state.nested_parse(content, 0, node, match_titles=1)
diff --git a/Documentation/sphinx/kernel_feat.py b/Documentation/sphinx/kernel_feat.py
index 2fee04f1dedd..c91ea2b27697 100644
--- a/Documentation/sphinx/kernel_feat.py
+++ b/Documentation/sphinx/kernel_feat.py
@@ -42,17 +42,7 @@ from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
 from docutils.utils.error_reporting import ErrorString
-
-#
-# AutodocReporter is only good up to Sphinx 1.7
-#
-import sphinx
-
-Use_SSI = sphinx.__version__[:3] >= '1.7'
-if Use_SSI:
-    from sphinx.util.docutils import switch_source_input
-else:
-    from sphinx.ext.autodoc import AutodocReporter
+from sphinx.util.docutils import switch_source_input
 
 __version__  = '1.0'
 
@@ -154,16 +144,7 @@ class KernelFeat(Directive):
 
         buf  = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
 
-        if Use_SSI:
-            with switch_source_input(self.state, content):
-                self.state.nested_parse(content, 0, node, match_titles=1)
-        else:
-            self.state.memo.title_styles  = []
-            self.state.memo.section_level = 0
-            self.state.memo.reporter      = AutodocReporter(content, self.state.memo.reporter)
-            try:
-                self.state.nested_parse(content, 0, node, match_titles=1)
-            finally:
-                self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
+        with switch_source_input(self.state, content):
+            self.state.nested_parse(content, 0, node, match_titles=1)
 
         return node.children
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index e9857ab904f1..8189c33b9dda 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -37,18 +37,8 @@ import glob
 from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
-
-#
-# AutodocReporter is only good up to Sphinx 1.7
-#
 import sphinx
-
-Use_SSI = sphinx.__version__[:3] >= '1.7'
-if Use_SSI:
-    from sphinx.util.docutils import switch_source_input
-else:
-    from sphinx.ext.autodoc import AutodocReporter
-
+from sphinx.util.docutils import switch_source_input
 import kernellog
 
 __version__  = '1.0'
@@ -163,18 +153,8 @@ class KernelDocDirective(Directive):
             return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
 
     def do_parse(self, result, node):
-        if Use_SSI:
-            with switch_source_input(self.state, result):
-                self.state.nested_parse(result, 0, node, match_titles=1)
-        else:
-            save = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
-            self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
-            self.state.memo.title_styles, self.state.memo.section_level = [], 0
-            try:
-                self.state.nested_parse(result, 0, node, match_titles=1)
-            finally:
-                self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = save
-
+        with switch_source_input(self.state, result):
+            self.state.nested_parse(result, 0, node, match_titles=1)
 
 def setup(app):
     app.add_config_value('kerneldoc_bin', None, 'env')
diff --git a/Documentation/sphinx/kernellog.py b/Documentation/sphinx/kernellog.py
index 8ac7d274f542..0bc00c138cad 100644
--- a/Documentation/sphinx/kernellog.py
+++ b/Documentation/sphinx/kernellog.py
@@ -4,29 +4,19 @@
 # only goes back to 1.6.  So here's a wrapper layer to keep around for
 # as long as we support 1.4.
 #
+# We don't support 1.4 anymore, but we'll keep the wrappers around until
+# we change all the code to not use them anymore :)
+#
 import sphinx
+from sphinx.util import logging
 
-if sphinx.__version__[:3] >= '1.6':
-    UseLogging = True
-    from sphinx.util import logging
-    logger = logging.getLogger('kerneldoc')
-else:
-    UseLogging = False
+logger = logging.getLogger('kerneldoc')
 
 def warn(app, message):
-    if UseLogging:
-        logger.warning(message)
-    else:
-        app.warn(message)
+    logger.warning(message)
 
 def verbose(app, message):
-    if UseLogging:
-        logger.verbose(message)
-    else:
-        app.verbose(message)
+    logger.verbose(message)
 
 def info(app, message):
-    if UseLogging:
-        logger.info(message)
-    else:
-        app.info(message)
+    logger.info(message)