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Commit c2719503 authored by Herbert Xu's avatar Herbert Xu
Browse files

random: Remove kernel blocking API 



This patch removes the kernel blocking API as it has been completely
replaced by the callback API.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 57225e67

drivers/char/random.c

+0 −12
Original line number Diff line number Diff line
@@ -1264,18 +1264,6 @@ void get_random_bytes(void *buf, int nbytes) 
}

EXPORT_SYMBOL(get_random_bytes);



/*

 * Equivalent function to get_random_bytes with the difference that this

 * function blocks the request until the nonblocking_pool is initialized.

 */

void get_blocking_random_bytes(void *buf, int nbytes)

{

	if (unlikely(nonblocking_pool.initialized == 0))

		wait_event(urandom_init_wait, nonblocking_pool.initialized);

	extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0);

}

EXPORT_SYMBOL(get_blocking_random_bytes);



/*

 * Add a callback function that will be invoked when the nonblocking

 * pool is initialised.

include/linux/random.h

+0 −1
Original line number Diff line number Diff line
@@ -21,7 +21,6 @@ extern void add_input_randomness(unsigned int type, unsigned int code, 
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);