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 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 */
};
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 */
};
Signed-off-by: Lin Kassem <linsara1@xxxxxxxxx>
---
drivers/staging/vt6656/rxtx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index bb6a4d4..c202147 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -749,7 +749,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
else
mic_hdr->hlen = cpu_to_be16(22);
- memcpy(mic_hdr->addr1, hdr->addr1, ETH_ALEN);
+ ether_addr_copy(mic_hdr->addr1, hdr->addr1);
memcpy(mic_hdr->addr2, hdr->addr2, ETH_ALEN);
memcpy(mic_hdr->addr3, hdr->addr3, ETH_ALEN);
--
1.7.9.5
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