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scripts/kernel-doc: remove an obscure logic from kernel-doc

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Kernel-doc has an obscure logic that uses an external file
to map files via a .tmp_filelist.txt file stored at the current
directory. The rationale for such code predates git time,
as it was added on Kernel v2.4.5.5, with the following description:

	# 26/05/2001 -         Support for separate source and object trees.
	#              Return error code.
	#              Keith Owens <kaos@ocs.com.au>

from commit 396a6123577d ("v2.4.5.4 -> v2.4.5.5") at the historic
tree:
	https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/

Support for separate source and object trees is now done on a different
way via make O=<object>.

There's no logic to create such file, so it sounds to me that this is
just dead code.

So, drop it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/fd3b28dec36ba1668325d6770d4c4754414337fc.1739340170.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2025-02-12 07:02:52 +01:00 committed by Jonathan Corbet
parent b09d96e084
commit ba561b4857
1 changed files with 1 additions and 18 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

19
scripts/kernel-doc
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@ -179,7 +179,7 @@ my ($function, %function_table, %parametertypes, $declaration_purpose);
my %nosymbol_table = ();
my $declaration_start_line;
my ($type, $declaration_name, $return_type);
my ($newsection, $newcontents, $prototype, $brcount, %source_map);
my ($newsection, $newcontents, $prototype, $brcount);
if (defined($ENV{'KBUILD_VERBOSE'}) && $ENV{'KBUILD_VERBOSE'} =~ '1') {
$verbose = 1;
@ -2005,10 +2005,6 @@ sub map_filename($) {
$file = $orig_file;
}
if (defined($source_map{$file})) {
$file = $source_map{$file};
}
return $file;
}
@ -2403,19 +2399,6 @@ for (my $k = 0; $k < @highlights; $k++) {
$dohighlight .= "\$contents =~ s:$pattern:$result:gs;\n";
}
# Read the file that maps relative names to absolute names for
# separate source and object directories and for shadow trees.
if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
my ($relname, $absname);
while(<SOURCE_MAP>) {
chop();
($relname, $absname) = (split())[0..1];
$relname =~ s:^/+::;
$source_map{$relname} = $absname;
}
close(SOURCE_MAP);
}
if ($output_selection == OUTPUT_EXPORTED ||
$output_selection == OUTPUT_INTERNAL) {