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authorRosen Penev <rosenp@gmail.com>2026-09-27 13:35:01 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-10-01 11:04:53 +0200
commit8167c1f071426706c233e93ecfd13aba7d5c06c8 (patch)
tree2c0cd5f5e1cc35eadee98d49fe034f96a88856ce /scripts/checkversion.pl
downloadlinux-stable-8167c1f071426706c233e93ecfd13aba7d5c06c8.tar.gz
linux-stable-8167c1f071426706c233e93ecfd13aba7d5c06c8.zip
tty: serial: mpc52xx_uart: move static declarations up.grafted
Avoid a compilation error so that they're not used before being declared. Fixes: 4d105880666a ("tty: serial: mpc52xx_uart: add bounds check for psc_num array index") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202609260356.tJWbd1WU-lkp@intel.com/ Signed-off-by: Rosen Penev <rosenp@gmail.com> Link: https://patch.msgid.link/20260927203501.14105-1-rosenp@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/checkversion.pl')
-rwxr-xr-xscripts/checkversion.pl76
1 files changed, 76 insertions, 0 deletions
diff --git a/scripts/checkversion.pl b/scripts/checkversion.pl
new file mode 100755
index 000000000..94cd49eff
--- /dev/null
+++ b/scripts/checkversion.pl
@@ -0,0 +1,76 @@
+#! /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);
+}