[PATCH] [KERNEL-DOC] kill warnings when building mandocs

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This patch shuts warnings of the sort:

make -C /mnt/samsung_200/sam/kernel/trees/21-rc6/build \
	KBUILD_SRC=/mnt/samsung_200/sam/kernel/trees/21-rc6 \
	KBUILD_EXTMOD="" -f /mnt/samsung_200/sam/kernel/trees/21-rc6/Makefile mandocs
make -f /mnt/samsung_200/sam/kernel/trees/21-rc6/scripts/Makefile.build obj=scripts/basic
make -f /mnt/samsung_200/sam/kernel/trees/21-rc6/scripts/Makefile.build obj=Documentation/DocBook mandocs
  SRCTREE=/mnt/samsung_200/sam/kernel/trees/21-rc6/ /mnt/samsung_200/sam/kernel/trees/21-rc6/build/scripts/basic/docproc doc /mnt/samsung_200/sam/kernel/trees/21-rc6/Documentation/DocBook/wanbook.tmpl >Documentation/DocBook/wanbook.xml
  if grep -q refentry Documentation/DocBook/wanbook.xml; then xmlto man -m /mnt/samsung_200/sam/kernel/trees/21-rc6/Documentation/DocBook/stylesheet.xsl -o Documentation/DocBook/man Documentation/DocBook/wanbook.xml ; gzip -f Documentation/DocBook/man/*.9; fi
Note: meta version: No productnumber or alternative     sppp_close
Note: meta version: No [email protected]=version        sppp_close
Note: Writing sppp_close.9
Note: meta version: No productnumber or alternative     sppp_open
Note: meta version: No [email protected]=version        sppp_open

by adding a RefMiscInfo xml tag in the form of the current kernel version to 
the function, struct and enum definitions in files included by kernel-doc when 
building 'mandocs'.  However, the version string appears truncated on the manpage
due to some constraints in the xml DTD for the man header, I believe, for the
troff output is truncated too.


Signed-off-by: Borislav Petkov <[email protected]>

Index: 21-rc6/scripts/kernel-doc
===================================================================
--- 21-rc6.orig/scripts/kernel-doc
+++ 21-rc6/scripts/kernel-doc
@@ -326,6 +326,34 @@ while ($ARGV[0] =~ m/^-(.*)/) {
     }
 }
 
+# get kernel version
+sub get_kernel_version() {
+
+	my $version;
+	open (FILE, "../Makefile") || die "Can't open man kernel Makefile: $!";
+
+	EOF: while (my $line = <FILE>)
+	{
+		if ($line =~ /VERSION\s+=\s+(\d+)/) {
+			$version .= $1;
+			next;
+		}
+		if ($line =~ /PATCHLEVEL\s+=\s+(\d+)/) {
+			$version .= ".$1";
+			next;
+		}
+		if ($line =~ /SUBLEVEL\s+=\s+(\d+)/) {
+			$version .= ".$1";
+			next;
+		}
+		if ($line =~ /EXTRAVERSION\s+=\s+(.*)$/) {
+			$version .= $1;
+			last EOF;
+		}
+	}
+	return $version;
+}
+
 
 # generate a sequence of code that will splice in highlighting information
 # using the s// operator.
@@ -592,6 +620,7 @@ sub output_function_xml(%) {
     print "<refmeta>\n";
     print " <refentrytitle><phrase>".$args{'function'}."</phrase></refentrytitle>\n";
     print " <manvolnum>9</manvolnum>\n";
+    print " <refmiscinfo class=\"version\">" . get_kernel_version() . "</refmiscinfo>\n";
     print "</refmeta>\n";
     print "<refnamediv>\n";
     print " <refname>".$args{'function'}."</refname>\n";
@@ -668,6 +697,7 @@ sub output_struct_xml(%) {
     print "<refmeta>\n";
     print " <refentrytitle><phrase>".$args{'type'}." ".$args{'struct'}."</phrase></refentrytitle>\n";
     print " <manvolnum>9</manvolnum>\n";
+    print " <refmiscinfo class=\"version\">" . get_kernel_version() . "</refmiscinfo>\n";
     print "</refmeta>\n";
     print "<refnamediv>\n";
     print " <refname>".$args{'type'}." ".$args{'struct'}."</refname>\n";
@@ -752,6 +782,7 @@ sub output_enum_xml(%) {
     print "<refmeta>\n";
     print " <refentrytitle><phrase>enum ".$args{'enum'}."</phrase></refentrytitle>\n";
     print " <manvolnum>9</manvolnum>\n";
+    print " <refmiscinfo class=\"version\">" . get_kernel_version() . "</refmiscinfo>\n";
     print "</refmeta>\n";
     print "<refnamediv>\n";
     print " <refname>enum ".$args{'enum'}."</refname>\n";
-
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