linux-kernel - [PATCH] staging: r8188eu: fix array

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Date:   Tue, 16 Nov 2021 14:41:07 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guo Zhengkui <guozhengkui@...o.com>,
        Michael Straube <straube.linux@...il.com>,
        linux-staging@...ts.linux.dev (open list:STAGING SUBSYSTEM),
        linux-kernel@...r.kernel.org (open list)
Cc:     kernel@...o.com
Subject: [PATCH] staging: r8188eu: fix array_size.cocci warning

Fix following array_size.cocci warning:
./drivers/staging/r8188eu/core/rtw_rf.c:38:48-49: WARNING: Use ARRAY_SIZE.

ARRAY_SIZE() defined in <linux/kernel.h> is safer because it uses
__must_be_array().

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
 drivers/staging/r8188eu/core/rtw_rf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/r8188eu/core/rtw_rf.c b/drivers/staging/r8188eu/core/rtw_rf.c
index 2ec56012516e..e704092d31d0 100644
--- a/drivers/staging/r8188eu/core/rtw_rf.c
+++ b/drivers/staging/r8188eu/core/rtw_rf.c
@@ -35,7 +35,7 @@ static struct ch_freq ch_freq_map[] = {
 	{216, 5080},/* Japan, means J16 */
 };
 
-static int ch_freq_map_num = (sizeof(ch_freq_map) / sizeof(struct ch_freq));
+static int ch_freq_map_num = ARRAY_SIZE(ch_freq_map);
 
 u32 rtw_ch2freq(u32 channel)
 {
-- 
2.20.1