linux-kernel - [ 05/86] timeconst.pl: Eliminate Perl warning

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Message-Id: <20130226235913.452205851@linuxfoundation.org>
Date:	Tue, 26 Feb 2013 16:07:13 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [ 05/86] timeconst.pl: Eliminate Perl warning

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "H. Peter Anvin" <hpa@...ux.intel.com>

commit 63a3f603413ffe82ad775f2d62a5afff87fd94a0 upstream.

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@...ux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 kernel/timeconst.pl |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- 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;

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