[PATCH v3 03/33] staging: rtl8192e: Mark unaligned memcpy()

[Mateusz Kulikowski]

Comment unaligned memcpy() that trigger PREFER_ETHER_ADDR_COPY
checkpatch.pl warning.
It will prevent accidential "Fix" to ether_addr_copy().

Signed-off-by: Mateusz Kulikowski <mateusz.kulikow...@gmail.com>
---
 drivers/staging/rtl8192e/rtllib_rx.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_rx.c 
b/drivers/staging/rtl8192e/rtllib_rx.c
index ebb328d..65e4d13 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -488,15 +488,19 @@ void rtllib_indicate_packets(struct rtllib_device *ieee, 
struct rtllib_rxb **prx
                                 * and replace EtherType
                                 */
                                skb_pull(sub_skb, SNAP_SIZE);
-                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, 
ETH_ALEN);
-                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, 
ETH_ALEN);
+                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src,
+                                      ETH_ALEN); /* Must be unaligned */
+                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst,
+                                      ETH_ALEN); /* Must be unaligned */
                        } else {
                                u16 len;
                        /* Leave Ethernet header part of hdr and full payload */
                                len = sub_skb->len;
                                memcpy(skb_push(sub_skb, 2), &len, 2);
-                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, 
ETH_ALEN);
-                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, 
ETH_ALEN);
+                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src,
+                                      ETH_ALEN); /* Must be unaligned */
+                               memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst,
+                                      ETH_ALEN); /* Must be unaligned */
                        }
 
                        /* Indicate the packets to upper layer */
@@ -781,15 +785,15 @@ static u8 parse_subframe(struct rtllib_device *ieee, 
struct sk_buff *skb,
 
                rxb->subframes[0] = sub_skb;
 
-               memcpy(rxb->src, src, ETH_ALEN);
-               memcpy(rxb->dst, dst, ETH_ALEN);
+               memcpy(rxb->src, src, ETH_ALEN); /* Must stay unaligned */
+               memcpy(rxb->dst, dst, ETH_ALEN); /* Must stay unaligned */
                rxb->subframes[0]->dev = ieee->dev;
                return 1;
        }
 
        rxb->nr_subframes = 0;
-       memcpy(rxb->src, src, ETH_ALEN);
-       memcpy(rxb->dst, dst, ETH_ALEN);
+       memcpy(rxb->src, src, ETH_ALEN); /* Must stay unaligned */
+       memcpy(rxb->dst, dst, ETH_ALEN); /* Must stay unaligned */
        while (skb->len > ETHERNET_HEADER_SIZE) {
                /* Offset 12 denote 2 mac address */
                nSubframe_Length = *((u16 *)(skb->data + 12));
-- 
1.8.4.1

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