[PATCH 4/4] hw_random: core: Remove forward declaration of hwrng_init

[PrasannaKumar Muralidharan]

Rearrange set_current_rng such that hwrng_init's forward declaration can
be removed.

Signed-off-by: PrasannaKumar Muralidharan <prasannatsmku...@gmail.com>
---
 drivers/char/hw_random/core.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 534c2ae..328d065 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -49,8 +49,6 @@ module_param(default_quality, ushort, 0644);
 MODULE_PARM_DESC(default_quality,
                 "default entropy content of hwrng per mill");
 
-static int hwrng_init(struct hwrng *rng);
-
 static size_t rng_buffer_size(void)
 {
        return SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES;
@@ -108,22 +106,6 @@ static void drop_current_rng(void)
        current_rng = NULL;
 }
 
-static int set_current_rng(struct hwrng *rng)
-{
-       int err;
-
-       BUG_ON(!mutex_is_locked(&rng_mutex));
-
-       err = hwrng_init(rng);
-       if (err)
-               return err;
-
-       drop_current_rng();
-       current_rng = rng;
-
-       return 0;
-}
-
 /* Returns ERR_PTR(), NULL or refcounted hwrng */
 static struct hwrng *get_current_rng(void)
 {
@@ -220,6 +202,22 @@ static int hwrng_init(struct hwrng *rng)
        return 0;
 }
 
+static int set_current_rng(struct hwrng *rng)
+{
+       int err;
+
+       BUG_ON(!mutex_is_locked(&rng_mutex));
+
+       err = hwrng_init(rng);
+       if (err)
+               return err;
+
+       drop_current_rng();
+       current_rng = rng;
+
+       return 0;
+}
+
 static int rng_dev_open(struct inode *inode, struct file *filp)
 {
        /* enforce read-only access to this chrdev */
-- 
2.10.0