exec: remove argv_len from struct linux_binprm
[linux-3.10.git] / include / linux / transport_class.h
1 /*
2  * transport_class.h - a generic container for all transport classes
3  *
4  * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
5  *
6  * This file is licensed under GPLv2
7  */
8
9 #ifndef _TRANSPORT_CLASS_H_
10 #define _TRANSPORT_CLASS_H_
11
12 #include <linux/device.h>
13 #include <linux/attribute_container.h>
14
15 struct transport_container;
16
17 struct transport_class {
18         struct class class;
19         int (*setup)(struct transport_container *, struct device *,
20                      struct device *);
21         int (*configure)(struct transport_container *, struct device *,
22                          struct device *);
23         int (*remove)(struct transport_container *, struct device *,
24                       struct device *);
25 };
26
27 #define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg)                   \
28 struct transport_class cls = {                                          \
29         .class = {                                                      \
30                 .name = nm,                                             \
31         },                                                              \
32         .setup = su,                                                    \
33         .remove = rm,                                                   \
34         .configure = cfg,                                               \
35 }
36
37
38 struct anon_transport_class {
39         struct transport_class tclass;
40         struct attribute_container container;
41 };
42
43 #define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg)            \
44 struct anon_transport_class cls = {                             \
45         .tclass = {                                             \
46                 .configure = cfg,                               \
47         },                                                      \
48         . container = {                                         \
49                 .match = mtch,                                  \
50         },                                                      \
51 }
52
53 #define class_to_transport_class(x) \
54         container_of(x, struct transport_class, class)
55
56 struct transport_container {
57         struct attribute_container ac;
58         struct attribute_group *statistics;
59 };
60
61 #define attribute_container_to_transport_container(x) \
62         container_of(x, struct transport_container, ac)
63
64 void transport_remove_device(struct device *);
65 void transport_add_device(struct device *);
66 void transport_setup_device(struct device *);
67 void transport_configure_device(struct device *);
68 void transport_destroy_device(struct device *);
69
70 static inline void
71 transport_register_device(struct device *dev)
72 {
73         transport_setup_device(dev);
74         transport_add_device(dev);
75 }
76
77 static inline void
78 transport_unregister_device(struct device *dev)
79 {
80         transport_remove_device(dev);
81         transport_destroy_device(dev);
82 }
83
84 static inline int transport_container_register(struct transport_container *tc)
85 {
86         return attribute_container_register(&tc->ac);
87 }
88
89 static inline void transport_container_unregister(struct transport_container *tc)
90 {
91         if (unlikely(attribute_container_unregister(&tc->ac)))
92                 BUG();
93 }
94
95 int transport_class_register(struct transport_class *);
96 int anon_transport_class_register(struct anon_transport_class *);
97 void transport_class_unregister(struct transport_class *);
98 void anon_transport_class_unregister(struct anon_transport_class *);
99
100
101 #endif