linux-kernel - [PATCH 1/2] staging: rtl8192e: Use standard api to calculate frequency to channel

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Message-ID: <fc332e81f6677965e9e51f1fcef9815997effcb5.1686166624.git.philipp.g.hortmann@gmail.com>
Date:   Thu, 8 Jun 2023 08:52:18 +0200
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] staging: rtl8192e: Use standard api to calculate
 frequency to channel

Use ieee80211_freq_khz_to_channel() to calculate frequency to channel to
omit proprietary code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@...il.com>
---
Tested this code with separate debug code as this part is usually unused.
---
 drivers/staging/rtl8192e/rtllib_softmac_wx.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 78a70e5f1974..6fd2e94d5f8a 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -42,15 +42,8 @@ int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a,
 	if (fwrq->e == 1) {
 		if ((fwrq->m >= (int)2.412e8 &&
 		     fwrq->m <= (int)2.487e8)) {
-			int f = fwrq->m / 100000;
-			int c = 0;
-
-			while ((c < 14) && (f != rtllib_wlan_frequencies[c]))
-				c++;
-
-			/* hack to fall through */
+			fwrq->m = ieee80211_freq_khz_to_channel(fwrq->m / 100);
 			fwrq->e = 0;
-			fwrq->m = c + 1;
 		}
 	}
 
-- 
2.40.1