staging: rtl8712: fix Prefer ether_addr_copy() over memcpy()
authorHeba Aamer <heba93aamer@gmail.com>
Thu, 29 Jan 2015 22:11:36 +0000 (00:11 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Feb 2015 09:15:43 +0000 (17:15 +0800)
This patch fixes the following checkpatch.pl warning:
Prefer ether_addr_copy() over memcpy()
if the Ethernet addresses are __aligned(2)

pahole showed that the struct used pnetdev->dev_addr
is aligned to u16.

Moreover mac is a simple array, pdata is a pointer that
starts from an even offset.

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/rtl8712/usb_intf.c

index f1fd7e8d16fd328b2614fba6f3fdabbbbcef3fe8..f8b5b332e7c3dc1160b7a22b54d8e2bd9eb5964f 100644 (file)
@@ -462,7 +462,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
                                /* Use the mac address stored in the Efuse
                                 * offset = 0x12 for usb in efuse
                                 */
-                               memcpy(mac, &pdata[0x12], ETH_ALEN);
+                               ether_addr_copy(mac, &pdata[0x12]);
                        }
                        eeprom_CustomerID = pdata[0x52];
                        switch (eeprom_CustomerID) {
@@ -579,7 +579,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
                } else
                        dev_info(&udev->dev,
                                "r8712u: MAC Address from efuse = %pM\n", mac);
-               memcpy(pnetdev->dev_addr, mac, ETH_ALEN);
+               ether_addr_copy(pnetdev->dev_addr, mac);
        }
        /* step 6. Load the firmware asynchronously */
        if (rtl871x_load_fw(padapter))