checkpatch: complex macros checks miss square brackets

We are missing 'simple' values which include square brackets.  Refactor to
ensure we handle nesting correctly and detect these simple forms.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
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 c479bde..54dfa2b 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2142,9 +2142,10 @@ sub process {
                        $dstat =~ s/\s*$//s;
 
                        # Flatten any parentheses and braces
-                       while ($dstat =~ s/\([^\(\)]*\)/1/) {
-                       }
-                       while ($dstat =~ s/\{[^\{\}]*\}/1/) {
+                       while ($dstat =~ s/\([^\(\)]*\)/1/ ||
+                              $dstat =~ s/\{[^\{\}]*\}/1/ ||
+                              $dstat =~ s/\[[^\{\}]*\]/1/)
+                       {
                        }
 
                        my $exceptions = qr{