IB/core: Introduce DECLARE_UVERBS_GLOBAL_METHODS

Introduce a new macro to be used for global methods on a singleton
object.

This macros sets internally the type_attrs to be NULL as such an object
can't be created.

Downstream patches from this series will use this macro.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

include/rdma/uverbs_named_ioctl.h

@@ -43,6 +43,7 @@
 #define _UVERBS_NAME(x, y)	_UVERBS_PASTE(x, y)
 #define UVERBS_METHOD(id)	_UVERBS_NAME(UVERBS_MODULE_NAME, _method_##id)
 #define UVERBS_HANDLER(id)	_UVERBS_NAME(UVERBS_MODULE_NAME, _handler_##id)
+#define UVERBS_OBJECT(id)	_UVERBS_NAME(UVERBS_MOUDLE_NAME, _object_##id)
 
 #define DECLARE_UVERBS_NAMED_METHOD(id, ...)	\
 	DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, UVERBS_HANDLER(id), ##__VA_ARGS__)
@@ -56,6 +57,9 @@
 #define DECLARE_UVERBS_NAMED_OBJECT(id, ...)	\
 	DECLARE_UVERBS_OBJECT(UVERBS_OBJECT(id), id, ##__VA_ARGS__)
 
+#define DECLARE_UVERBS_GLOBAL_METHODS(_name, ...)	\
+	DECLARE_UVERBS_NAMED_OBJECT(_name, NULL, ##__VA_ARGS__)
+
 #define _UVERBS_COMP_NAME(x, y, z) _UVERBS_NAME(_UVERBS_NAME(x, y), z)
 
 #define UVERBS_NO_OVERRIDE	NULL

include/rdma/uverbs_std_types.h

@@ -37,8 +37,6 @@
 #include <rdma/uverbs_ioctl.h>
 #include <rdma/ib_user_ioctl_verbs.h>
 
-#define UVERBS_OBJECT(id)	uverbs_object_##id
-
 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
 const struct uverbs_object_tree_def *uverbs_default_get_objects(void);
 #else