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From:   Christian Lamparter <chunkeey@gmail.com>
To:     linux-wireless@vger.kernel.org
Cc:     Kalle Valo <kvalo@codeaurora.org>
Subject: [PATCH] carl9170: remove dead branch in op_conf_tx callback
Date:   Sat, 15 Jun 2019 12:00:08 +0200
Message-Id: <20190615100009.14654-1-chunkeey@gmail.com>
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Sender: linux-wireless-owner@vger.kernel.org
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This patch removes the error branch for (queue > ar->hw->queues).
It is no longer needed anymore as the "queue" value is validated by
cfg80211's parse_txq_params() before the driver code gets called.

Some background:
In the old days (linux 2.6 and early 3.x), the parse_txq_params()
function did not verify the "queue" value. That's why these drivers
had to do it.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
---
 drivers/net/wireless/ath/carl9170/main.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 7f1bdea742b8..40a8054f8aa6 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1387,13 +1387,8 @@ static int carl9170_op_conf_tx(struct ieee80211_hw *hw,
 	int ret;
 
 	mutex_lock(&ar->mutex);
-	if (queue < ar->hw->queues) {
-		memcpy(&ar->edcf[ar9170_qmap[queue]], param, sizeof(*param));
-		ret = carl9170_set_qos(ar);
-	} else {
-		ret = -EINVAL;
-	}
-
+	memcpy(&ar->edcf[ar9170_qmap[queue]], param, sizeof(*param));
+	ret = carl9170_set_qos(ar);
 	mutex_unlock(&ar->mutex);
 	return ret;
 }
-- 
2.20.1