checkpatch: conditional indent -- labels have different indent rules

Labels have different indent rules and must be ignored when checking the
conditional indent levels.  Also correct identify labels in single
statement conditionals.

Signed-off-by: Andy Whitcroft <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

scripts/checkpatch.pl

@@ -782,17 +782,17 @@ sub annotate_values {
 			}
 			$type = 'N';
 
-		} elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) {
+		} elsif ($cur =~ /^(if|while|for)\b/o) {
 			print "COND($1)\n" if ($dbg_values > 1);
-			$av_pending = 'N';
+			$av_pending = 'E';
 			$type = 'N';
 
 		} elsif ($cur =~/^(case)/o) {
 			print "CASE($1)\n" if ($dbg_values > 1);
 			$av_pend_colon = 'C';
 			$type = 'N';
 
-		} elsif ($cur =~/^(return|else|goto)/o) {
+		} elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
 			print "KEYWORD($1)\n" if ($dbg_values > 1);
 			$type = 'N';
 
@@ -1846,6 +1846,11 @@ sub process {
 				$check = 0;
 			}
 
+			# Ignore the current line if it is label.
+			if ($s =~ /^\s*$Ident\s*:/) {
+				$check = 0;
+			}
+
 			my (undef, $sindent) = line_stats("+" . $s);
 
 			##print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s>\n";