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Bluetooth: Remove useless smp_rand function

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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>
This commit is contained in:
Johan Hedberg 2013-12-02 10:49:03 +02:00 committed by Gustavo Padovan
parent d2bee8fb6e
commit e84a6b139b
1 changed files with 2 additions and 13 deletions
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15
net/bluetooth/smp.c
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@ -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));