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RDMA/uverbs: Simplify method definition macros

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Instead of the large set of indirecting macros, define the few needed
macros to directly instantiate the struct uverbs_method_def and associated
attributes 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>
This commit is contained in:
Jason Gunthorpe
2018-07-04 08:50:26 +03:00
parent d108dac080
commit 595c7736d4
8 changed files with 60 additions and 74 deletions
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18
include/rdma/uverbs_ioctl.h
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@@ -258,24 +258,6 @@ struct uverbs_object_tree_def {
* Declaration helpers
* =======================================
*/
#define _UVERBS_METHOD_ATTRS_SZ(...) \
(sizeof((const struct uverbs_attr_def * const []){__VA_ARGS__}) /\
sizeof(const struct uverbs_attr_def *))
#define _UVERBS_METHOD(_id, _handler, _flags, ...) \
((const struct uverbs_method_def) { \
.id = _id, \
.flags = _flags, \
.handler = _handler, \
.num_attrs = _UVERBS_METHOD_ATTRS_SZ(__VA_ARGS__), \
.attrs = &(const struct uverbs_attr_def * const []){__VA_ARGS__} })
#define DECLARE_UVERBS_METHOD(_name, _id, _handler, ...) \
const struct uverbs_method_def _name = \
_UVERBS_METHOD(_id, _handler, 0, ##__VA_ARGS__)
#define DECLARE_UVERBS_CTX_METHOD(_name, _id, _handler, _flags, ...) \
const struct uverbs_method_def _name = \
_UVERBS_METHOD(_id, _handler, \
UVERBS_ACTION_FLAG_CREATE_ROOT, \
##__VA_ARGS__)
#define _UVERBS_OBJECT_METHODS_SZ(...) \
(sizeof((const struct uverbs_method_def * const []){__VA_ARGS__}) / \
sizeof(const struct uverbs_method_def *))