linux-kernel - [PATCH] drivers: staging: rtl8723au: get rid of unneeded memset/memcpy

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Date:	Sun,  7 Dec 2014 15:37:20 +0100
From:	Emil Renner Berthing <kernel@...il.dk>
To:	Larry Finger <Larry.Finger@...inger.net>,
	Jes Sorensen <Jes.Sorensen@...hat.com>
Cc:	Emil Renner Berthing <kernel@...il.dk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-wireless@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drivers: staging: rtl8723au: get rid of unneeded memset/memcpy

This also fixes a sparse warning.

Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
---
 drivers/staging/rtl8723au/hal/rtl8723a_cmd.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
index 7b56411..d8c4c8b 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
@@ -124,14 +124,15 @@ int rtl8723a_set_rssi_cmd(struct rtw_adapter *padapter, u8 *param)
 
 int rtl8723a_set_raid_cmd(struct rtw_adapter *padapter, u32 mask, u8 arg)
 {
-	u8 buf[5];
+	struct {
+		__le32 mask;
+		u8 arg;
+	} __packed buf;
 
-	memset(buf, 0, 5);
-	mask = cpu_to_le32(mask);
-	memcpy(buf, &mask, 4);
-	buf[4]  = arg;
+	buf.mask = cpu_to_le32(mask);
+	buf.arg = arg;
 
-	FillH2CCmd(padapter, MACID_CONFIG_EID, 5, buf);
+	FillH2CCmd(padapter, MACID_CONFIG_EID, 5, (u8 *)&buf);
 
 	return _SUCCESS;
 }
-- 
2.1.3

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