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Subject[PATCH v4 07/52] scripts: kernel-doc: reimplement -nofunction argument
Date
Right now, the build system doesn't use -nofunction, as
it is pretty much useless, because it doesn't consider
the other output modes (extern, internal), working only
with all.

Also, it is limited to exclude functions.

Re-implement it in order to allow excluding any symbols from
the document output, no matter what mode is used.

The parameter was also renamed to "-nosymbol", as it express
better its meaning.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
scripts/kernel-doc | 44 +++++++++++++++++++++-----------------------
1 file changed, 21 insertions(+), 23 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 07b1073b0bc0..6588a0d27fe4 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -66,9 +66,8 @@ Output selection (mutually exclusive):
-function NAME Only output documentation for the given function(s)
or DOC: section title(s). All other functions and DOC:
sections are ignored. May be specified multiple times.
- -nofunction NAME Do NOT output documentation for the given function(s);
- only output documentation for the other functions and
- DOC: sections. May be specified multiple times.
+ -nosymbol NAME Exclude the specified symbols from the output
+ documentation. May be specified multiple times.

Output selection modifiers:
-no-doc-sections Do not output DOC: sections.
@@ -288,9 +287,8 @@ my $modulename = "Kernel API";
use constant {
OUTPUT_ALL => 0, # output all symbols and doc sections
OUTPUT_INCLUDE => 1, # output only specified symbols
- OUTPUT_EXCLUDE => 2, # output everything except specified symbols
- OUTPUT_EXPORTED => 3, # output exported symbols
- OUTPUT_INTERNAL => 4, # output non-exported symbols
+ OUTPUT_EXPORTED => 2, # output exported symbols
+ OUTPUT_INTERNAL => 3, # output non-exported symbols
};
my $output_selection = OUTPUT_ALL;
my $show_not_found = 0; # No longer used
@@ -315,6 +313,7 @@ my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
# CAVEAT EMPTOR! Some of the others I localised may not want to be, which
# could cause "use of undefined value" or other bugs.
my ($function, %function_table, %parametertypes, $declaration_purpose);
+my %nosymbol_table = ();
my $declaration_start_line;
my ($type, $declaration_name, $return_type);
my ($newsection, $newcontents, $prototype, $brcount, %source_map);
@@ -434,10 +433,9 @@ while ($ARGV[0] =~ m/^--?(.*)/) {
$output_selection = OUTPUT_INCLUDE;
$function = shift @ARGV;
$function_table{$function} = 1;
- } elsif ($cmd eq "nofunction") { # output all except specific functions
- $output_selection = OUTPUT_EXCLUDE;
- $function = shift @ARGV;
- $function_table{$function} = 1;
+ } elsif ($cmd eq "nosymbol") { # Exclude specific symbols
+ my $symbol = shift @ARGV;
+ $nosymbol_table{$symbol} = 1;
} elsif ($cmd eq "export") { # only exported symbols
$output_selection = OUTPUT_EXPORTED;
%function_table = ();
@@ -570,11 +568,11 @@ sub dump_doc_section {
return;
}

+ return if (defined($nosymbol_table{$name}));
+
if (($output_selection == OUTPUT_ALL) ||
- ($output_selection == OUTPUT_INCLUDE &&
- defined($function_table{$name})) ||
- ($output_selection == OUTPUT_EXCLUDE &&
- !defined($function_table{$name})))
+ (($output_selection == OUTPUT_INCLUDE) &&
+ defined($function_table{$name})))
{
dump_section($file, $name, $contents);
output_blockhead({'sectionlist' => \@sectionlist,
@@ -800,6 +798,8 @@ sub output_blockhead_rst(%) {
my ($parameter, $section);

foreach $section (@{$args{'sectionlist'}}) {
+ next if (defined($nosymbol_table{$section}));
+
if ($output_selection != OUTPUT_INCLUDE) {
print "**$section**\n\n";
}
@@ -1115,12 +1115,14 @@ sub output_declaration {
my $name = shift;
my $functype = shift;
my $func = "output_${functype}_$output_mode";
+
+ return if (defined($nosymbol_table{$name}));
+
if (($output_selection == OUTPUT_ALL) ||
(($output_selection == OUTPUT_INCLUDE ||
$output_selection == OUTPUT_EXPORTED) &&
defined($function_table{$name})) ||
- (($output_selection == OUTPUT_EXCLUDE ||
- $output_selection == OUTPUT_INTERNAL) &&
+ ($output_selection == OUTPUT_INTERNAL &&
!($functype eq "function" && defined($function_table{$name}))))
{
&$func(@_);
@@ -1301,6 +1303,8 @@ sub show_warnings($$) {
my $functype = shift;
my $name = shift;

+ return 0 if (defined($nosymbol_table{$name}));
+
return 1 if ($output_selection == OUTPUT_ALL);

if ($output_selection == OUTPUT_EXPORTED) {
@@ -1324,13 +1328,6 @@ sub show_warnings($$) {
return 0;
}
}
- if ($output_selection == OUTPUT_EXCLUDE) {
- if (!defined($function_table{$name})) {
- return 1;
- } else {
- return 0;
- }
- }
die("Please add the new output type at show_warnings()");
}

@@ -1945,6 +1942,7 @@ sub process_export_file($) {

while (<IN>) {
if (/$export_symbol/) {
+ next if (defined($nosymbol_table{$2}));
$function_table{$2} = 1;
}
}
--
2.26.2
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