[PATCH] checkpatch: Prefer DEFINE_TYPES() over type_init / type_register_static

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

When multiple QOM types are registered in the same file, it
is clearer and simpler to use the the DEFINE_TYPES() macro.

Add a rule to checkpatch.pl to suggest using DEFINE_TYPES()
instead of type_init() / type_register_static().

Suggested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 scripts/checkpatch.pl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index eeaec436eb..db8029635c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2877,6 +2877,12 @@ sub process {
 		if ($line =~ /^module_init\s*\(/) {
 			ERROR("please use block_init(), type_init() etc. instead of module_init()\n" . $herecurr);
 		}
+
+# recommend DEFINE_TYPES() over type_init()/type_register_static()
+		if ($line =~ /\b(type_init|type_register_static)\(/) {
+			WARN("consider using DEFINE_TYPES() in preference to type_init()\n" . $herecurr);
+		}
+
 # check for various ops structs, ensure they are const.
 		my $struct_ops = qr{AIOCBInfo|
 				BdrvActionOps|
-- 
2.38.1