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	* upon request.			* upon request.
	*/			*/
	struct random_source {			struct random_source {
	const char *rs_ident;			const char *rs_ident;
	enum random_entropy_source rs_source;			enum random_entropy_source rs_source;
	random_source_read_t *rs_read;			random_source_read_t *rs_read;
	};			};

	struct random_sources {
	LIST_ENTRY(random_sources) rrs_entries;
	struct random_source *rrs_source;
	};

	LIST_HEAD(sources_head, random_sources);
	extern struct sources_head source_list;

	void random_source_register(struct random_source *);			void random_source_register(struct random_source *);
	void random_source_deregister(struct random_source *);			void random_source_deregister(struct random_source *);

	#if defined(RANDOM_LOADABLE)			#if defined(RANDOM_LOADABLE)
	extern struct sx randomdev_config_lock;			extern struct sx randomdev_config_lock;
	#define RANDOM_CONFIG_INIT_LOCK(x) sx_init(&randomdev_config_lock, "configuration change lock")			#define RANDOM_CONFIG_INIT_LOCK(x) sx_init(&randomdev_config_lock, "configuration change lock")
	#define RANDOM_CONFIG_X_LOCK(x) sx_xlock(&randomdev_config_lock)			#define RANDOM_CONFIG_X_LOCK(x) sx_xlock(&randomdev_config_lock)
	#define RANDOM_CONFIG_X_UNLOCK(x) sx_xunlock(&randomdev_config_lock)			#define RANDOM_CONFIG_X_UNLOCK(x) sx_xunlock(&randomdev_config_lock)
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