From c2719503f5e1e6213d716bb078bdad01e28ebcbf Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 9 Jun 2015 18:19:42 +0800 Subject: [PATCH] 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 --- drivers/char/random.c | 12 ------------ include/linux/random.h | 1 - 2 files changed, 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 @@ -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. 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); -- 2.20.1