Orange Pi5 kernel

#! /usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
# without including <linux/version.h>, or cases of
# including <linux/version.h> that don't need it.
# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
 
use strict;
 
$| = 1;
 
my $debugging;
 
foreach my $file (@ARGV) {
    next if $file =~ "include/linux/version\.h";
    # Open this file.
    open( my $f, '<', $file )
      or die "Can't open $file: $!\n";
 
    # Initialize variables.
    my ($fInComment, $fInString, $fUseVersion);
    my $iLinuxVersion = 0;
 
    while (<$f>) {
<------># Strip comments.
<------>$fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
<------>m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
 
<------># Pick up definitions.
<------>if ( m/^\s*#/o ) {
<------>    $iLinuxVersion      = $. if m/^\s*#\s*include\s*"linux\/version\.h"/o;
<------>}
 
<------># Strip strings.
<------>$fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
<------>m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
 
<------># Pick up definitions.
<------>if ( m/^\s*#/o ) {
<------>    $iLinuxVersion      = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
<------>}
 
<------># Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
<------>if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {
<------>    $fUseVersion = 1;
            last if $iLinuxVersion;
        }
    }
 
    # Report used version IDs without include?
    if ($fUseVersion && ! $iLinuxVersion) {
<------>print "$file: $.: need linux/version.h\n";
    }
 
    # Report superfluous includes.
    if ($iLinuxVersion && ! $fUseVersion) {
<------>print "$file: $iLinuxVersion linux/version.h not needed.\n";
    }
 
    # debug: report OK results:
    if ($debugging) {
        if ($iLinuxVersion && $fUseVersion) {
<------>    print "$file: version use is OK ($iLinuxVersion)\n";
        }
        if (! $iLinuxVersion && ! $fUseVersion) {
<------>    print "$file: version use is OK (none)\n";
        }
    }
 
    close($f);
}