6 files changed, 34 insertions, 7 deletions
diff --git a/Documentation/sphinx/kernel_abi.py b/Documentation/sphinx/kernel_abi.py
index 4392b3cb4020..b5feb5b1d905 100644
--- a/Documentation/sphinx/kernel_abi.py
+++ b/Documentation/sphinx/kernel_abi.py
@@ -128,6 +128,7 @@ class KernelCmd(Directive):
         return out
 
     def nestedParse(self, lines, fname):
+        env = self.state.document.settings.env
         content = ViewList()
         node = nodes.section()
 
@@ -137,7 +138,7 @@ class KernelCmd(Directive):
                 code_block += "\n    " + l
             lines = code_block + "\n\n"
 
-        line_regex = re.compile("^#define LINENO (\S+)\#([0-9]+)$")
+        line_regex = re.compile("^\.\. LINENO (\S+)\#([0-9]+)$")
         ln = 0
         n = 0
         f = fname
@@ -154,6 +155,9 @@ class KernelCmd(Directive):
                     self.do_parse(content, node)
                     content = ViewList()
 
+                    # Add the file to Sphinx build dependencies
+                    env.note_dependency(os.path.abspath(f))
+
                 f = new_f
 
                 # sphinx counts lines from 0
diff --git a/Documentation/sphinx/kernel_feat.py b/Documentation/sphinx/kernel_feat.py
index 8138d69a6987..27b701ed3681 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):
diff --git a/Documentation/sphinx/kernel_include.py b/Documentation/sphinx/kernel_include.py
index f523aa68a36b..abe768088377 100755
--- a/Documentation/sphinx/kernel_include.py
+++ b/Documentation/sphinx/kernel_include.py
@@ -59,6 +59,7 @@ class KernelInclude(Include):
     u"""KernelInclude (``kernel-include``) directive"""
 
     def run(self):
+        env = self.state.document.settings.env
         path = os.path.realpath(
             os.path.expandvars(self.arguments[0]))
 
@@ -70,6 +71,8 @@ class KernelInclude(Include):
 
         self.arguments[0] = path
 
+        env.note_dependency(os.path.abspath(path))
+
         #return super(KernelInclude, self).run() # won't work, see HINTs in _run()
         return self._run()
 
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 8189c33b9dda..9395892c7ba3 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -130,7 +130,7 @@ class KernelDocDirective(Directive):
             result = ViewList()
 
             lineoffset = 0;
-            line_regex = re.compile("^#define LINENO ([0-9]+)$")
+            line_regex = re.compile("^\.\. LINENO ([0-9]+)$")
             for line in lines:
                 match = line_regex.search(line)
                 if match:
diff --git a/Documentation/sphinx/kfigure.py b/Documentation/sphinx/kfigure.py
index 24d2b2addcce..cefdbb7e7523 100644
--- a/Documentation/sphinx/kfigure.py
+++ b/Documentation/sphinx/kfigure.py
@@ -212,7 +212,7 @@ def setupTools(app):
         if convert_cmd:
             kernellog.verbose(app, "use convert(1) from: " + convert_cmd)
         else:
-            kernellog.warn(app,
+            kernellog.verbose(app,
                 "Neither inkscape(1) nor convert(1) found.\n"
                 "For SVG to PDF conversion, "
                 "install either Inkscape (https://inkscape.org/) (preferred) or\n"
@@ -296,8 +296,10 @@ def convert_image(img_node, translator, src_fname=None):
 
         if translator.builder.format == 'latex':
             if not inkscape_cmd and convert_cmd is None:
-                kernellog.verbose(app,
-                                  "no SVG to PDF conversion available / include SVG raw.")
+                kernellog.warn(app,
+                                  "no SVG to PDF conversion available / include SVG raw."
+                                  "\nIncluding large raw SVGs can cause xelatex error."
+                                  "\nInstall Inkscape (preferred) or ImageMagick.")
                 img_node.replace_self(file2literal(src_fname))
             else:
                 dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
diff --git a/Documentation/sphinx/requirements.txt b/Documentation/sphinx/requirements.txt
index 9a35f50798a6..2c573541ab71 100644
--- a/Documentation/sphinx/requirements.txt
+++ b/Documentation/sphinx/requirements.txt
@@ -1,2 +1,4 @@
+# jinja2>=3.1 is not compatible with Sphinx<4.0
+jinja2<3.1
 sphinx_rtd_theme
 Sphinx==2.4.4