[PATCH v4 06/15] docs: kernel_abi.py: make it compatible with Sphinx 1.7+

[Mauro Carvalho Chehab <mchehab+samsung@kernel.org>]

The same way kerneldoc.py needed changes to work with newer
Sphinx, this script needs the same changes.

While here, reorganize the include order to match kerneldoc.py.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
 Documentation/sphinx/kernel_abi.py | 39 +++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 12 deletions(-)

diff --git a/Documentation/sphinx/kernel_abi.py b/Documentation/sphinx/kernel_abi.py
index b4434498fe2f..0b2a89d4c12d 100644
--- a/Documentation/sphinx/kernel_abi.py
+++ b/Documentation/sphinx/kernel_abi.py
@@ -32,18 +32,27 @@ u"""
 """
 
 import codecs
-import sys
 import os
-from os import path
 import subprocess
+import sys
 
-from sphinx.ext.autodoc import AutodocReporter
+from os import path
 
-from docutils import nodes
-from docutils.parsers.rst import Directive, directives
+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
 
 __version__  = '1.0'
 
@@ -141,11 +150,17 @@ class KernelCmd(Directive):
             content.append(l, fname, c)
 
         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
+
+        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
+
         return node.children
-- 
2.21.0