linux-kernel - [PATCH -next] staging: r8188eu: use 'is_zero_ether

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Date:   Mon, 4 Jul 2022 12:45:53 +0000
From:   Zhang Zekun <zhangzekun11@...wei.com>
To:     <Larry.Finger@...inger.net>, <phil@...lpotter.co.uk>,
        <paskripkin@...il.com>, <gregkh@...uxfoundation.org>,
        <martin@...ser.cx>, <straube.linux@...il.com>
CC:     <linux-media@...r.kernel.org>,
        <linux-rockchip@...ts.infradead.org>,
        <linux-staging@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        <xuqiang36@...wei.com>
Subject: [PATCH -next] staging: r8188eu: use 'is_zero_ether_addr' to identify an empty address

Use 'is_zero_ether_addr' to identify an empty ethernet address, intead
of using 'memcpy' directly.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhang Zekun <zhangzekun11@...wei.com>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index cce0575e93b7..365f5b2786cf 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -3513,7 +3513,6 @@ static unsigned int on_action_public_p2p(struct recv_frame *precv_frame)
 	u32	p2p_ielen;
 	struct	wifidirect_info	*pwdinfo = &padapter->wdinfo;
 	u8	result = P2P_STATUS_SUCCESS;
-	u8	empty_addr[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 	frame_body = (unsigned char *)(pframe + sizeof(struct ieee80211_hdr_3addr));
 
@@ -3551,7 +3550,7 @@ static unsigned int on_action_public_p2p(struct recv_frame *precv_frame)
 
 		/*	Commented by Kurt 20120113 */
 		/*	Get peer_dev_addr here if peer doesn't issue prov_disc frame. */
-		if (!memcmp(pwdinfo->rx_prov_disc_info.peerDevAddr, empty_addr, ETH_ALEN))
+		if (is_zero_ether_addr(pwdinfo->rx_prov_disc_info.peerDevAddr))
 			memcpy(pwdinfo->rx_prov_disc_info.peerDevAddr, GetAddr2Ptr(pframe), ETH_ALEN);
 
 		result = process_p2p_group_negotation_req(pwdinfo, frame_body, len);
-- 
2.17.1