The parameter order for clamp is supposed to be clamp(value, low, high). When we write it in this order it's equivalent to min(head->plcp[3] & 0x7f, 75) which works in this context where the min is zero. But it's not a correct use of the API. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- drivers/net/wireless/ath/carl9170/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c index f7c2f19e81c1..8e154f6364a3 100644 --- a/drivers/net/wireless/ath/carl9170/rx.c +++ b/drivers/net/wireless/ath/carl9170/rx.c @@ -427,7 +427,7 @@ static int carl9170_rx_mac_status(struct ar9170 *ar, if (head->plcp[6] & 0x80) status->enc_flags |= RX_ENC_FLAG_SHORT_GI; - status->rate_idx = clamp(0, 75, head->plcp[3] & 0x7f); + status->rate_idx = clamp(head->plcp[3] & 0x7f, 0, 75); status->encoding = RX_ENC_HT; break; -- 2.17.1
