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-rw-r--r--include/linux/kobject.h23
1 files changed, 14 insertions, 9 deletions
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 949706c33622..626bdd3c3dd9 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -29,6 +29,8 @@
29 29
30#define KOBJ_NAME_LEN 20 30#define KOBJ_NAME_LEN 20
31#define UEVENT_HELPER_PATH_LEN 256 31#define UEVENT_HELPER_PATH_LEN 256
32#define UEVENT_NUM_ENVP 32 /* number of env pointers */
33#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */
32 34
33/* path to the userspace helper executed on an event */ 35/* path to the userspace helper executed on an event */
34extern char uevent_helper[]; 36extern char uevent_helper[];
@@ -111,11 +113,18 @@ struct kobj_type {
111 struct attribute ** default_attrs; 113 struct attribute ** default_attrs;
112}; 114};
113 115
116struct kobj_uevent_env {
117 char *envp[UEVENT_NUM_ENVP];
118 int envp_idx;
119 char buf[UEVENT_BUFFER_SIZE];
120 int buflen;
121};
122
114struct kset_uevent_ops { 123struct kset_uevent_ops {
115 int (*filter)(struct kset *kset, struct kobject *kobj); 124 int (*filter)(struct kset *kset, struct kobject *kobj);
116 const char *(*name)(struct kset *kset, struct kobject *kobj); 125 const char *(*name)(struct kset *kset, struct kobject *kobj);
117 int (*uevent)(struct kset *kset, struct kobject *kobj, char **envp, 126 int (*uevent)(struct kset *kset, struct kobject *kobj,
118 int num_envp, char *buffer, int buffer_size); 127 struct kobj_uevent_env *env);
119}; 128};
120 129
121/* 130/*
@@ -275,10 +284,8 @@ int kobject_uevent(struct kobject *kobj, enum kobject_action action);
275int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, 284int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
276 char *envp[]); 285 char *envp[]);
277 286
278int add_uevent_var(char **envp, int num_envp, int *cur_index, 287int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
279 char *buffer, int buffer_size, int *cur_len, 288 __attribute__((format (printf, 2, 3)));
280 const char *format, ...)
281 __attribute__((format (printf, 7, 8)));
282#else 289#else
283static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action) 290static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action)
284{ return 0; } 291{ return 0; }
@@ -287,9 +294,7 @@ static inline int kobject_uevent_env(struct kobject *kobj,
287 char *envp[]) 294 char *envp[])
288{ return 0; } 295{ return 0; }
289 296
290static inline int add_uevent_var(char **envp, int num_envp, int *cur_index, 297static inline int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
291 char *buffer, int buffer_size, int *cur_len,
292 const char *format, ...)
293{ return 0; } 298{ return 0; }
294#endif 299#endif
295 300