linux-kernel - [PATCH v2] staging: vt6656: Use ARRAY

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Date:   Wed, 18 Mar 2020 18:40:15 +0100
From:   Oscar Carter <oscar.carter@....com>
To:     Forest Bond <forest@...ttletooquiet.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Quentin Deslandes <quentin.deslandes@...ev.co.uk>,
        Malcolm Priestley <tvboxspy@...il.com>,
        Oscar Carter <oscar.carter@....com>,
        Colin Ian King <colin.king@...onical.com>,
        Gabriela Bittencourt <gabrielabittencourt00@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: vt6656: Use ARRAY_SIZE instead of hardcoded size

Use ARRAY_SIZE to replace the hardcoded size so we will never have a
mismatch.

Signed-off-by: Oscar Carter <oscar.carter@....com>
---
Changelog v1 -> v2
- Use ARRAY_SIZE(priv->cck_pwr_tbl) everywhere instead of introducing a new
  variable to hold its value.

 drivers/staging/vt6656/main_usb.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 5e48b3ddb94c..acfcc11c3b61 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -23,6 +23,7 @@

 #include <linux/etherdevice.h>
 #include <linux/file.h>
+#include <linux/kernel.h>
 #include "device.h"
 #include "card.h"
 #include "baseband.h"
@@ -145,7 +146,7 @@ static int vnt_init_registers(struct vnt_private *priv)

 	init_cmd->init_class = DEVICE_INIT_COLD;
 	init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
-	for (ii = 0; ii < 6; ii++)
+	for (ii = 0; ii < ARRAY_SIZE(init_cmd->sw_net_addr); ii++)
 		init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
 	init_cmd->short_retry_limit = priv->short_retry_limit;
 	init_cmd->long_retry_limit = priv->long_retry_limit;
@@ -184,7 +185,7 @@ static int vnt_init_registers(struct vnt_private *priv)
 	priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
 	priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
 	/* load power table */
-	for (ii = 0; ii < 14; ii++) {
+	for (ii = 0; ii < ARRAY_SIZE(priv->cck_pwr_tbl); ii++) {
 		priv->cck_pwr_tbl[ii] =
 			priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
 		if (priv->cck_pwr_tbl[ii] == 0)
@@ -200,7 +201,7 @@ static int vnt_init_registers(struct vnt_private *priv)
 	 * original zonetype is USA, but custom zonetype is Europe,
 	 * then need to recover 12, 13, 14 channels with 11 channel
 	 */
-	for (ii = 11; ii < 14; ii++) {
+	for (ii = 11; ii < ARRAY_SIZE(priv->cck_pwr_tbl); ii++) {
 		priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
 		priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
 	}
--
2.20.1