Now that get_feat is in Python, we don't need to use subprocess
to fork an executable file: we can use the feature classes
directly.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/sphinx/kernel_feat.py | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/Documentation/sphinx/kernel_feat.py b/Documentation/sphinx/kernel_feat.py
index 1dcbfe335a65..59b3ca573021 100644
--- a/Documentation/sphinx/kernel_feat.py
+++ b/Documentation/sphinx/kernel_feat.py
@@ -34,7 +34,6 @@
 import codecs
 import os
 import re
-import subprocess
 import sys
 
 from docutils import nodes, statemachine
@@ -89,18 +88,16 @@ class KernelFeat(Directive):
 
         srctree = os.path.abspath(os.environ["srctree"])
 
-        args = [
-            os.path.join(srctree, 'tools/docs/get_feat.pl'),
-            'rest',
-            '--enable-fname',
-            '--dir',
-            os.path.join(srctree, 'Documentation', self.arguments[0]),
-        ]
+        feature_dir = os.path.join(srctree, 'Documentation', self.arguments[0])
+
+        feat = ParseFeature(feature_dir, False, True)
+        feat.parse()
 
         if len(self.arguments) > 1:
-            args.extend(['--arch', self.arguments[1]])
-
-        lines = subprocess.check_output(args, cwd=os.path.dirname(doc.current_source)).decode('utf-8')
+            arch = self.arguments[1]
+            lines = feat.output_arch_table(arch)
+        else:
+            lines = feat.output_matrix()
 
         line_regex = re.compile(r"^\.\. FILE (\S+)$")
 
-- 
2.51.1