checkpatch: macros which define structure members are not complex

We often see macros which define structure members, these are not complex
and necessarily do not have braces or brackets.  For example:

    #define _PLIST_HEAD_INIT(head)                      \
        .prio_list = LIST_HEAD_INIT((head).prio_list),  \
        .node_list = LIST_HEAD_INIT((head).node_list)

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 19690a2..6eceda7 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2155,6 +2155,7 @@ sub process {
                                if ($dstat ne '' &&
                                    $dstat !~ /^(?:$Ident|-?$Constant)$/ &&
                                    $dstat !~ /$exceptions/ &&
+                                   $dstat !~ /^\.$Ident\s*=/ &&
                                    $dstat =~ /$Operators/)
                                {
                                        ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");