From 48eaa7f59649eb4d371ad5e75c606f65e80a93ad Mon Sep 17 00:00:00 2001 From: Heba Aamer Date: Wed, 21 Jan 2015 13:08:48 +0200 Subject: [PATCH] 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 Reviewed-by: Aya Mahfouz Signed-off-by: Greg Kroah-Hartman --- 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 bb6a4d43af58..b74f672ff696 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -738,7 +738,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context, 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); -- 2.34.1