scripts/checkincludes.pl: add exit message for no duplicates found

If no duplicates found, inform user.

Link: http://lkml.kernel.org/r/1486391275-2843-1-git-send-email-thrust73@gmail.com
Signed-off-by: Cheah Kok Cheong <thrust73@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkincludes.pl b/scripts/checkincludes.pl
index 97b2c6143fe4f9d61cbc181b316e812e82dc456e..381c018a461297881c4c704c0a71854bb87b65b4 100755 (executable)
--- a/scripts/checkincludes.pl
+++ b/scripts/checkincludes.pl
@@ -37,6 +37,8 @@ if ($#ARGV >= 1) {
        }
 }
 
+my $dup_counter = 0;
+
 foreach my $file (@ARGV) {
        open(my $f, '<', $file)
            or die "Cannot open $file: $!.\n";
@@ -57,6 +59,7 @@ foreach my $file (@ARGV) {
                foreach my $filename (keys %includedfiles) {
                        if ($includedfiles{$filename} > 1) {
                                print "$file: $filename is included more than once.\n";
+                               ++$dup_counter;
                        }
                }
                next;
@@ -73,6 +76,7 @@ foreach my $file (@ARGV) {
                                        if ($includedfiles{$filename} > 1) {
                                                $includedfiles{$filename}--;
                                                $dups++;
+                                               ++$dup_counter;
                                        } else {
                                                print {$f} $_;
                                        }
@@ -87,3 +91,7 @@ foreach my $file (@ARGV) {
        }
        close($f);
 }
+
+if ($dup_counter == 0) {
+       print "No duplicate includes found.\n";
+}