random: Add callback API for random pool readiness

[karo-tx-linux.git] / include / linux / random.h

diff --git a/include/linux/random.h b/include/linux/random.h
index 796267d569011df69bc879c57ae0e054061ab3d8..30e2aca0b16af61e836de501b564bed2917be270 100644 (file)
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -6,8 +6,15 @@
 #ifndef _LINUX_RANDOM_H
 #define _LINUX_RANDOM_H
 
+#include <linux/list.h>
 #include <uapi/linux/random.h>
 
+struct random_ready_callback {
+       struct list_head list;
+       void (*func)(struct random_ready_callback *rdy);
+       struct module *owner;
+};
+
 extern void add_device_randomness(const void *, unsigned int);
 extern void add_input_randomness(unsigned int type, unsigned int code,
                                 unsigned int value);
@@ -15,6 +22,8 @@ extern void add_interrupt_randomness(int irq, int irq_flags);
 
 extern void get_random_bytes(void *buf, int nbytes);
 extern void get_blocking_random_bytes(void *buf, int nbytes);
+extern int add_random_ready_callback(struct random_ready_callback *rdy);
+extern void del_random_ready_callback(struct random_ready_callback *rdy);
 extern void get_random_bytes_arch(void *buf, int nbytes);
 void generate_random_uuid(unsigned char uuid_out[16]);
 extern int random_int_secret_init(void);