staging: vt6656: fix Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)
This patch fixes the following checkpatch.pl warning:
fix Prefer ether_addr_copy() over memcpy()
if the Ethernet addresses are __aligned(2)
Pahole showed that the 2 structs are aligned to u16
struct vnt_mic_hdr {
u8 id; /* 0 1 */
u8 tx_priority; /* 1 1 */
u8 mic_addr2[6]; /* 2 6 */
u8 ccmp_pn[6]; /* 8 6 */
__be16 payload_len; /* 14 2 */
__be16 hlen; /* 16 2 */
__le16 frame_control; /* 18 2 */
u8 addr1[6]; /* 20 6 */
u8 addr2[6]; /* 26 6 */
u8 addr3[6]; /* 32 6 */
__le16 seq_ctrl; /* 38 2 */
u8 addr4[6]; /* 40 6 */
u16 packing; /* 46 2 */
/* size: 48, cachelines: 1, members: 13 */
/* last cacheline: 48 bytes */
};
struct ieee80211_hdr {
__le16 frame_control; /* 0 2 */
__le16 duration_id; /* 2 2 */
u8 addr1[6]; /* 4 6 */
u8 addr2[6]; /* 10 6 */
u8 addr3[6]; /* 16 6 */
__le16 seq_ctrl; /* 22 2 */
u8 addr4[6]; /* 24 6 */
/* size: 30, cachelines: 1, members: 7 */
/* last cacheline: 30 bytes */
};
Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Reviewed-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index bb6a4d4..b74f672 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -738,7 +738,7 @@
mic_hdr->id = 0x59;
mic_hdr->payload_len = cpu_to_be16(payload_len);
- memcpy(mic_hdr->mic_addr2, hdr->addr2, ETH_ALEN);
+ ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
ieee80211_get_key_tx_seq(tx_key, &seq);