commit 63a3f603413ffe82ad775f2d62a5afff87fd94a0
Author: H. Peter Anvin <hpa@linux.intel.com>
Date:   Thu Feb 7 17:14:08 2013 -0800

    timeconst.pl: Eliminate Perl warning
    
    defined(@array) is deprecated in Perl and gives off a warning.
    Restructure the code to remove that warning.
    
    [ hpa: it would be interesting to revert to the timeconst.bc script.
      It appears that the failures reported by akpm during testing of
      that script was due to a known broken version of make, not a problem
      with bc.  The Makefile rules could probably be restructured to avoid
      the make bug, or it is probably old enough that it doesn't matter. ]
    
    Reported-by: Andi Kleen <ak@linux.intel.com>
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: <stable@vger.kernel.org>

diff --git a/kernel/timeconst.pl b/kernel/timeconst.pl
index eb51d76..3f42652 100644
--- a/kernel/timeconst.pl
+++ b/kernel/timeconst.pl
@@ -369,10 +369,8 @@ if ($hz eq '--can') {
 		die "Usage: $0 HZ\n";
 	}
 
-	@val = @{$canned_values{$hz}};
-	if (!defined(@val)) {
-		@val = compute_values($hz);
-	}
+	$cv = $canned_values{$hz};
+	@val = defined($cv) ? @$cv : compute_values($hz);
 	output($hz, @val);
 }
 exit 0;