dm vdo: use get_random_u32() where appropriate

Use the typed random integer helpers instead of
get_random_bytes() when filling a single integer variable.
The helpers return the value directly, require no pointer
or size argument, and better express intent.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

diff --git a/drivers/md/dm-vdo/indexer/index-layout.c b/drivers/md/dm-vdo/indexer/index-layout.c
index 5f4ce4ab1b1ea8e978d08dc261d287d22c845bc7..2d529250000eb7c3aa45c0741b413d1a6f9d58fa 100644 (file)
--- a/drivers/md/dm-vdo/indexer/index-layout.c
+++ b/drivers/md/dm-vdo/indexer/index-layout.c
@@ -282,7 +282,7 @@ static void create_unique_nonce_data(u8 *buffer)
        u32 rand;
        size_t offset = 0;
 
-       get_random_bytes(&rand, sizeof(u32));
+       rand = get_random_u32();
        memcpy(buffer + offset, &now, sizeof(now));
        offset += sizeof(now);
        memcpy(buffer + offset, &rand, sizeof(rand));