Merge tag 'docs-5.18-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "Some late-arriving documentation improvements.

  This is mostly build-system fixes from Mauro and Akira; I also took
  the liberty of dropping in my 'messy diffstat' document"

* tag 'docs-5.18-2' of git://git.lwn.net/linux:
  docs: Add a document on how to fix a messy diffstat
  docs: sphinx/requirements: Limit jinja2<3.1
  Documentation: kunit: Fix cross-referencing warnings
  scripts/kernel-doc: change the line number meta info
  scripts/get_abi: change the file/line number meta info
  docs: kernel_include.py: add sphinx build dependencies
  docs: kernel_abi.py: add sphinx build dependencies
  docs: kernel_feat.py: add build dependencies
  scripts/get_feat.pl: allow output the parsed file names
  docs: kfigure.py: Don't warn of missing PDF converter in 'make htmldocs'
  Documentation: Fix duplicate statement about raw_spinlock_t type

1 files changed, 18 insertions, 2 deletions

diff --git a/Documentation/sphinx/kernel_feat.py b/Documentation/sphinx/kernel_feat.py
index 8138d69a6987a..27b701ed3681e 100644
--- a/Documentation/sphinx/kernel_feat.py
+++ b/Documentation/sphinx/kernel_feat.py
@@ -33,6 +33,7 @@ u"""
 
 import codecs
 import os
+import re
 import subprocess
 import sys
 
@@ -82,7 +83,7 @@ class KernelFeat(Directive):
 
         env = doc.settings.env
         cwd = path.dirname(doc.current_source)
-        cmd = "get_feat.pl rest --dir "
+        cmd = "get_feat.pl rest --enable-fname --dir "
         cmd += self.arguments[0]
 
         if len(self.arguments) > 1:
@@ -102,7 +103,22 @@ class KernelFeat(Directive):
         shell_env["srctree"] = srctree
 
         lines = self.runCmd(cmd, shell=True, cwd=cwd, env=shell_env)
-        nodeList = self.nestedParse(lines, fname)
+
+        line_regex = re.compile("^\.\. FILE (\S+)$")
+
+        out_lines = ""
+
+        for line in lines.split("\n"):
+            match = line_regex.search(line)
+            if match:
+                fname = match.group(1)
+
+                # Add the file to Sphinx build dependencies
+                env.note_dependency(os.path.abspath(fname))
+            else:
+                out_lines += line + "\n"
+
+        nodeList = self.nestedParse(out_lines, fname)
         return nodeList
 
     def runCmd(self, cmd, **kwargs):