From 91fc6d8afe06698326bdd4d3bcb362c17c52e288 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Mon, 28 Sep 2020 11:22:12 +0200
Subject: [PATCH] docs: kerneldoc.py: append the name of the parsed doc file

Finding where an error like this was generated:
	../lib/math/div64.c:73: WARNING: Duplicate C declaration, also defined in 'kernel-api'.

Can take some time, as there's no glue about what kernel-doc
tag generated it. It is a way better to display it as:

	.../Documentation/core-api/kernel-api:171: ../lib/math/div64.c:73: WARNING: Duplicate C declaration, also defined in 'kernel-api'.
	Declaration is 'div_s64_rem'.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/sphinx/kerneldoc.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 1a1b12242a45..a3a5427130da 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -141,7 +141,8 @@ class KernelDocDirective(Directive):
                     lineoffset = int(match.group(1)) - 1
                     # we must eat our comments since the upset the markup
                 else:
-                    result.append(line, filename, lineoffset)
+                    doc = env.srcdir + "/" + env.docname + ":" + str(self.lineno)
+                    result.append(line, doc + ": " + filename, lineoffset)
                     lineoffset += 1
 
             node = nodes.section()