linux-kernel - [PATCH v3 03/15] scripts: kernel-doc: Relink argument parsing error handling to pod2usage

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Date:   Tue,  4 Jan 2022 02:59:34 +0100
From:   Tomasz Warniełło 
        <tomasz.warniello@...il.com>
To:     corbet@....net
Cc:     Tomasz Warniełło 
        <tomasz.warniello@...il.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 03/15] scripts: kernel-doc: Relink argument parsing error handling to pod2usage

The former usage function is substituted, although not as the -h and -help
parameter handler yet.

* Transform documentation into POD (3/15)
See step 1 for the series details.

Signed-off-by: Tomasz Warniełło <tomasz.warniello@...il.com>
---
 scripts/kernel-doc | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index c8fbf1d3d5aa..c37fd36860f3 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -16,6 +16,8 @@ use strict;
 ## This software falls under the GNU General Public License.     ##
 ## Please read the COPYING file for more information             ##
 
+use Pod::Usage qw/pod2usage/;
+
 =head1 NAME
 
 kernel-doc - Print formatted kernel documentation to stdout
@@ -298,7 +300,13 @@ my $blankline_rst = "\n";
 
 # read arguments
 if ($#ARGV == -1) {
-    usage();
+	pod2usage(
+		-message => "No arguments!\n",
+		-exitval => 1,
+		-verbose => 99,
+		-sections => 'SYNOPSIS',
+		-output => \*STDERR,
+	);
 }
 
 my $kernelversion;
@@ -518,8 +526,14 @@ while ($ARGV[0] =~ m/^--?(.*)/) {
 	    die "Sphinx version should either major.minor or major.minor.patch format\n";
 	}
     } else {
-	# Unknown argument
-        usage();
+			# Unknown argument
+		pod2usage(
+			-message => "Argument unknown!\n",
+			-exitval => 1,
+			-verbose => 99,
+			-sections => 'SYNOPSIS',
+			-output => \*STDERR,
+		);
     }
 }
 
-- 
2.30.2