checkpatch: fix complex macro false positive for escaped constant char

A single escaped constant char is not a complex macro.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d833b73..cadf70f 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3772,7 +3772,7 @@ sub process {
                            $dstat !~ /^(?:$Ident|-?$Constant),$/ &&                    # 10, // foo(),
                            $dstat !~ /^(?:$Ident|-?$Constant);$/ &&                    # foo();
                            $dstat !~ /^[!~-]?(?:$Lval|$Constant)$/ &&          # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz
-                           $dstat !~ /^'X'$/ &&                                        # character constants
+                           $dstat !~ /^'X'$/ && $dstat !~ /^'XX'$/ &&                  # character constants
                            $dstat !~ /$exceptions/ &&
                            $dstat !~ /^\.$Ident\s*=/ &&                                # .foo =
                            $dstat !~ /^(?:\#\s*$Ident|\#\s*$Constant)\s*$/ &&          # stringification #foo