From: Dan Carpenter <dan.carpenter@oracle.com>
To: Christian Lamparter <chunkeey@googlemail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] carl9170: clean up a clamp() call
Date: Mon, 18 Feb 2019 12:31:54 +0300 [thread overview]
Message-ID: <20190218093154.GC7712@kadam> (raw)
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@oracle.com>
---
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
next reply other threads:[~2019-02-18 9:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-18 9:31 Dan Carpenter [this message]
2019-02-18 16:04 ` [PATCH] carl9170: clean up a clamp() call Christian Lamparter
2019-02-19 15:18 ` Kalle Valo
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