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scripts/checkversion.pl
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81f7e3824 Initial Release, ... |
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#! /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: $! "; # Initialize variables. my ($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: $.: need linux/version.h "; } # Report superfluous includes. if ($iLinuxVersion && ! $fUseVersion) { print "$file: $iLinuxVersion linux/version.h not needed. "; } # debug: report OK results: if ($debugging) { if ($iLinuxVersion && $fUseVersion) { print "$file: version use is OK ($iLinuxVersion) "; } if (! $iLinuxVersion && ! $fUseVersion) { print "$file: version use is OK (none) "; } } close($f); } |