[PATCH v2] checkpatch: add *_NOTIFIER_HEAD as var definition

[Gilad Ben-Yossef]

Add *_NOTIFIER_HEAD as variable definition to avoid code like this:

ATOMIC_NOTIFIER_HEAD(foo);
EXPORT_SYMBOL_GPL(foo);

>From triggering the the following warning:
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable

Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
---

Changes from v1:
- Better RegExp as suggested by Joe Perches.

 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 342c7c781ba5..9cadda7024ae 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3864,6 +3864,7 @@ sub process {
 				^.DEFINE_$Ident\(\Q$name\E\)|
 				^.DECLARE_$Ident\(\Q$name\E\)|
 				^.LIST_HEAD\(\Q$name\E\)|
+				^.{$Ident}_NOTIFIER_HEAD\(\Q$name\E\)|
 				^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
 				\b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
 			    )/x) {
-- 
2.21.0