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authorJohan Hedberg <johan.hedberg@intel.com>2013-12-02 10:49:03 +0200
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2013-12-04 11:09:05 -0200
commite84a6b139bdd3af2914f194ff840b1a36fa55598 (patch)
treee20caf8fc9d9912e591efd444534758ec9367e57
parentd2bee8fb6e18f6116aada39851918473761f7ab1 (diff)
Bluetooth: Remove useless smp_rand function
This function was always just making a single get_random_bytes() call and always returning the value 0. It's simpler to just call get_random_bytes() directly where needed. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--net/bluetooth/smp.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index f99352d1aa43..3bcb765b6a92 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -143,13 +143,6 @@ static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16], u8 r1[16],
return err;
}
-static int smp_rand(u8 *buf)
-{
- get_random_bytes(buf, 16);
-
- return 0;
-}
-
static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code,
u16 dlen, void *data)
{
@@ -606,9 +599,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (check_enc_key_size(conn, key_size))
return SMP_ENC_KEY_SIZE;
- ret = smp_rand(smp->prnd);
- if (ret)
- return SMP_UNSPECIFIED;
+ get_random_bytes(smp->prnd, sizeof(smp->prnd));
smp->prsp[0] = SMP_CMD_PAIRING_RSP;
memcpy(&smp->prsp[1], &rsp, sizeof(rsp));
@@ -644,9 +635,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
if (check_enc_key_size(conn, key_size))
return SMP_ENC_KEY_SIZE;
- ret = smp_rand(smp->prnd);
- if (ret)
- return SMP_UNSPECIFIED;
+ get_random_bytes(smp->prnd, sizeof(smp->prnd));
smp->prsp[0] = SMP_CMD_PAIRING_RSP;
memcpy(&smp->prsp[1], rsp, sizeof(*rsp));