linux-kernel - [PATCH 2/3] checkincludes.pl: provide usage helper

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Date:	Wed, 5 Aug 2009 17:51:11 -0700
From:	"Luis R. Rodriguez" <lrodriguez@...eros.com>
To:	<akpm@...ux-foundation.org>, <joe@...ches.com>,
	<torvalds@...ux-foundation.org>
CC:	<linux-kernel@...r.kernel.org>, <mcgrof@...il.com>,
	"Luis R. Rodriguez" <lrodriguez@...eros.com>
Subject: [PATCH 2/3] checkincludes.pl: provide usage helper

Signed-off-by: Luis R. Rodriguez <lrodriguez@...eros.com>
---
 scripts/checkincludes.pl |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/scripts/checkincludes.pl b/scripts/checkincludes.pl
index 32ebff6..4bff139 100755
--- a/scripts/checkincludes.pl
+++ b/scripts/checkincludes.pl
@@ -3,6 +3,15 @@
 # checkincludes: Find files included more than once in (other) files.
 # Copyright abandoned, 2000, Niels Kristian Bech Jensen <nkbj@...ge.dk>.
 
+sub usage {
+	print "Usage: checkincludes.pl <file list>\n";
+	exit 1;
+}
+
+if ($#ARGV < 0) {
+        usage();
+}
+
 foreach $file (@ARGV) {
 	open(FILE, $file) or die "Cannot open $file: $!.\n";
 
-- 
1.6.3.3

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