#! /usr/bin/env perl# SPDX-License-Identifier: GPL-2.0## checkversion finds uses of all macros in <linux/version.h># where the source files do not #include <linux/version.h>; or cases# of including <linux/version.h> where it is not needed.# Copyright (C) 2003, Randy Dunlap <rdunlap@infradead.org>use strict;$| = 1;my $debugging;foreach my $file (@ARGV) { next if $file =~ "include/generated/uapi/linux/version\.h"; next if $file =~ "usr/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 = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o; } # Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, # LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) || ($_ =~ /LINUX_VERSION_MAJOR/) || ($_ =~ /LINUX_VERSION_PATCHLEVEL/) || ($_ =~ /LINUX_VERSION_SUBLEVEL/)) { $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);}
#! /usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# checkversion finds uses of all macros in <linux/version.h>
# where the source files do not #include <linux/version.h>; or cases
# of including <linux/version.h> where it is not needed.
# Copyright (C) 2003, Randy Dunlap <rdunlap@infradead.org>
use strict;
$| = 1;
my $debugging;
foreach my $file (@ARGV) {
next if $file =~ "include/generated/uapi/linux/version\.h";
next if $file =~ "usr/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 = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
}
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION,
# LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) ||
($_ =~ /LINUX_VERSION_MAJOR/) || ($_ =~ /LINUX_VERSION_PATCHLEVEL/) ||
($_ =~ /LINUX_VERSION_SUBLEVEL/)) {
$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);
}