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random: Remove kernel blocking API

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

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2015-06-09 18:19:42 +08:00
parent 57225e6797
commit c2719503f5
2 changed files with 0 additions and 13 deletions
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12
drivers/char/random.c
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@ -1264,18 +1264,6 @@ void get_random_bytes(void *buf, int nbytes)
} }
EXPORT_SYMBOL(get_random_bytes); 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 * Add a callback function that will be invoked when the nonblocking
* pool is initialised. * pool is initialised.

1
include/linux/random.h
View File

@ -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 add_interrupt_randomness(int irq, int irq_flags);
extern void get_random_bytes(void *buf, int nbytes); 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 int add_random_ready_callback(struct random_ready_callback *rdy);
extern void del_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); extern void get_random_bytes_arch(void *buf, int nbytes);