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authorHerbert Xu <herbert@gondor.apana.org.au>2015-06-09 18:19:42 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-10 19:14:04 +0800
commitc2719503f5e1e6213d716bb078bdad01e28ebcbf (patch)
treef4eda27ef5b7ce8798bfaa3dfab7b017f5a6df17
parent57225e6797885e31302e76fc5926c0bedd7e5ad4 (diff)
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: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/char/random.c12
-rw-r--r--include/linux/random.h1
2 files changed, 0 insertions, 13 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index a1576ed1d88e..d0da5d852d41 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1265,18 +1265,6 @@ 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.
*
diff --git a/include/linux/random.h b/include/linux/random.h
index 30e2aca0b16a..e651874df2c9 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -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);