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authorJason Gunthorpe <jgg@mellanox.com>2018-07-04 08:50:27 +0300
committerJason Gunthorpe <jgg@mellanox.com>2018-07-04 22:47:01 +0300
commit6c61d2a55c4e5980e231fac9bb54e6ff1a5e811b (patch)
tree09b2b9bfb5ac867602397711de458b0f44883873 /include/rdma/uverbs_ioctl.h
parent595c7736d48037d67e7926f5d3ebf484b95b1d13 (diff)
downloadlinux-6c61d2a55c4e5980e231fac9bb54e6ff1a5e811b.tar.xz
RDMA/uverbs: Simplify UVERBS_OBJECT and _TREE family of macros
Instead of the large set of indirecting macros, define the few needed macros to directly instantiate the struct uverbs_oject_tree_def and associated objects list. This is small amount of code duplication but the readability is far better. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'include/rdma/uverbs_ioctl.h')
-rw-r--r--include/rdma/uverbs_ioctl.h44
1 files changed, 22 insertions, 22 deletions
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index 12fa0eef0ab0..392936ad25ba 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -254,32 +254,32 @@ struct uverbs_object_tree_def {
})
/*
+ * This spec is used in order to pass information to the hardware driver in a
+ * legacy way. Every verb that could get driver specific data should get this
+ * spec.
+ */
+#define UVERBS_ATTR_UHW() \
+ &UVERBS_ATTR_PTR_IN(UVERBS_ATTR_UHW_IN, \
+ UVERBS_ATTR_SIZE(0, USHRT_MAX), \
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)), \
+ &UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_UHW_OUT, \
+ UVERBS_ATTR_SIZE(0, USHRT_MAX), \
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO))
+
+/*
* =======================================
* Declaration helpers
* =======================================
*/
-#define _UVERBS_OBJECT_METHODS_SZ(...) \
- (sizeof((const struct uverbs_method_def * const []){__VA_ARGS__}) / \
- sizeof(const struct uverbs_method_def *))
-#define _UVERBS_OBJECT(_id, _type_attrs, ...) \
- ((const struct uverbs_object_def) { \
- .id = _id, \
- .type_attrs = _type_attrs, \
- .num_methods = _UVERBS_OBJECT_METHODS_SZ(__VA_ARGS__), \
- .methods = &(const struct uverbs_method_def * const []){__VA_ARGS__} })
-#define DECLARE_UVERBS_OBJECT(_name, _id, _type_attrs, ...) \
- const struct uverbs_object_def _name = \
- _UVERBS_OBJECT(_id, _type_attrs, ##__VA_ARGS__)
-#define _UVERBS_TREE_OBJECTS_SZ(...) \
- (sizeof((const struct uverbs_object_def * const []){__VA_ARGS__}) / \
- sizeof(const struct uverbs_object_def *))
-#define _UVERBS_OBJECT_TREE(...) \
- ((const struct uverbs_object_tree_def) { \
- .num_objects = _UVERBS_TREE_OBJECTS_SZ(__VA_ARGS__), \
- .objects = &(const struct uverbs_object_def * const []){__VA_ARGS__} })
-#define DECLARE_UVERBS_OBJECT_TREE(_name, ...) \
- const struct uverbs_object_tree_def _name = \
- _UVERBS_OBJECT_TREE(__VA_ARGS__)
+
+#define DECLARE_UVERBS_OBJECT_TREE(_name, ...) \
+ static const struct uverbs_object_def *const _name##_ptr[] = { \
+ __VA_ARGS__, \
+ }; \
+ static const struct uverbs_object_tree_def _name = { \
+ .num_objects = ARRAY_SIZE(_name##_ptr), \
+ .objects = &_name##_ptr, \
+ }
/* =================================================
* Parsing infrastructure