Staging: rtl8712: replace memcpy() by ether_addr_copy() using coccinelle and pack variable

This patch focuses on fixing the following warning generated
by checkpatch.pl for the file rtl871x_cmd.c

Prefer ether_addr_copy() over memcpy() if the Ethernet addresses
are __aligned(2)

@@ expression e1, e2; @@

- memcpy(e1, e2, ETH_ALEN);
+ ether_addr_copy(e1, e2);

struct _adapter {
        struct dvobj_priv          dvobjpriv;            /*     0    40*/
        struct mlme_priv           mlmepriv;             /*    40  1560*/
        /* --- cacheline 25 boundary (1600 bytes) --- */
        struct cmd_priv            cmdpriv;              /*  1600   136*/
        /* --- cacheline 27 boundary (1728 bytes) was 8 bytes ago --- */
        struct evt_priv            evtpriv;              /*  1736    96*/
        /* --- cacheline 28 boundary (1792 bytes) was 40 bytes ago --- * */
        struct io_queue *          pio_queue;            /*  1832     8*/
        struct xmit_priv           xmitpriv;             /*  1840   912*/
        /* --- cacheline 43 boundary (2752 bytes) --- */
        struct recv_priv           recvpriv;             /*  2752  1088*/
        /* --- cacheline 60 boundary (3840 bytes) --- */
        struct sta_priv            stapriv;              /*  3840   672*/
        /* --- cacheline 70 boundary (4480 bytes) was 32 bytes ago --- * */
        struct security_priv       securitypriv;         /*  4512  4816*/
        /* --- cacheline 145 boundary (9280 bytes) was 48 bytes ago --- * */
        struct registry_priv       registrypriv;         /*  9328   968*/
        /* --- cacheline 160 boundary (10240 bytes) was 56 bytes ago --- * */
        struct wlan_acl_pool       acl_list;             /* 10296  1536*/
        /* --- cacheline 184 boundary (11776 bytes) was 56 bytes ago --- * */
        struct pwrctrl_priv        pwrctrlpriv;          /* 11832   224*/
        /* --- cacheline 188 boundary (12032 bytes) was 24 bytes ago --- * */
        struct eeprom_priv         eeprompriv;           /* 12056   508*/

        /* XXX 4 bytes hole, try to pack */

        /* --- cacheline 196 boundary (12544 bytes) was 24 bytes ago --- * */
        struct hal_priv            halpriv;              /* 12568    88*/
        /* --- cacheline 197 boundary (12608 bytes) was 48 bytes ago --- * */
        struct led_priv            ledpriv;              /* 12656   304*/
        /* --- cacheline 202 boundary (12928 bytes) was 32 bytes ago --- * */
        struct mp_priv             mppriv;               /* 12960  1080*/
	 /* --- cacheline 219 boundary (14016 bytes) was 24 bytes ago * --- */
        s32                        bDriverStopped;       /* 14040     4*/
        s32                        bSurpriseRemoved;     /* 14044     4*/
        u32                        IsrContent;           /* 14048     4*/
        u32                        ImrContent;           /* 14052     4*/
        u8                         EepromAddressSize;    /* 14056     1*/
        u8                         hw_init_completed;    /* 14057     1*/

        /* XXX 6 bytes hole, try to pack */

        struct task_struct *       cmdThread;            /* 14064     8*/
        pid_t                      evtThread;            /* 14072     4*/

        /* XXX 4 bytes hole, try to pack */

        /* --- cacheline 220 boundary (14080 bytes) --- */
        struct task_struct *       xmitThread;           /* 14080     8*/
        pid_t                      recvThread;           /* 14088     4*/

        /* XXX 4 bytes hole, try to pack */

        uint                       (*dvobj_init)(struct _adapter *); /*14096     8 */
        void                       (*dvobj_deinit)(struct _adapter *);/* 14104     8 */
        struct net_device *        pnetdev;              /* 14112     8*/
        int                        bup;                  /* 14120     4*/

        /* XXX 4 bytes hole, try to pack */

        struct net_device_stats    stats;                /* 14128   184*/
        /* --- cacheline 223 boundary (14272 bytes) was 40 bytes ago --- * */
	 struct iw_statistics       iwstats;              /* 14312    32*/
        /* --- cacheline 224 boundary (14336 bytes) was 8 bytes ago --- * */
        int                        pid;                  /* 14344     4*/

        /* XXX 4 bytes hole, try to pack */

        struct work_struct         wkFilterRxFF0;        /* 14352    32*/
        u8                         blnEnableRxFF0Filter; /* 14384     1*/

        /* XXX 3 bytes hole, try to pack */

        spinlock_t                 lockRxFF0Filter;      /* 14388     4*/
        const struct firmware  *   fw;                   /* 14392     8*/
        /* --- cacheline 225 boundary (14400 bytes) --- */
        struct usb_interface *     pusb_intf;            /* 14400     8*/
        struct mutex               mutex_start;          /* 14408    40*/

        /* XXX last struct has 4 bytes of padding */

        struct completion          rtl8712_fw_ready;     /* 14448    32*/
        /* --- cacheline 226 boundary (14464 bytes) was 16 bytes ago --- * */

        /* size: 14480, cachelines: 227, members: 40 */
        /* sum members: 14451, holes: 7, sum holes: 29 */
        /* paddings: 1, sum paddings: 4 */
        /* last cacheline: 16 bytes */
};

Signed-off-by: Melike Yurtoglu <aysemelikeyurtoglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_cmd.c

@@ -530,8 +530,8 @@ u8 r8712_joinbss_cmd(struct _adapter  *padapter, struct wlan_network *pnetwork)
 	 * the driver just has the bssid information for PMKIDList searching.
 	 */
 	if (pmlmepriv->assoc_by_bssid == false)
-		memcpy(&pmlmepriv->assoc_bssid[0],
-			&pnetwork->network.MacAddress[0], ETH_ALEN);
+		ether_addr_copy(&pmlmepriv->assoc_bssid[0],
+				&pnetwork->network.MacAddress[0]);
 	psecnetwork->IELength = r8712_restruct_sec_ie(padapter,
 						&pnetwork->network.IEs[0],
 						&psecnetwork->IEs[0],
@@ -682,7 +682,7 @@ u8 r8712_setstakey_cmd(struct _adapter *padapter, u8 *psta, u8 unicast_key)
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetstakey_para, _SetStaKey_CMD_);
 	ph2c->rsp = (u8 *) psetstakey_rsp;
 	ph2c->rspsz = sizeof(struct set_stakey_rsp);
-	memcpy(psetstakey_para->addr, sta->hwaddr, ETH_ALEN);
+	ether_addr_copy(psetstakey_para->addr, sta->hwaddr);
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
 		psetstakey_para->algorithm = (unsigned char)
 					    psecuritypriv->PrivacyAlgrthm;
@@ -784,7 +784,7 @@ u8 r8712_setMacAddr_cmd(struct _adapter *padapter, u8 *mac_addr)
 	}
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetMacAddr_para,
 				   _SetMacAddress_CMD_);
-	memcpy(psetMacAddr_para->MacAddr, mac_addr, ETH_ALEN);
+	ether_addr_copy(psetMacAddr_para->MacAddr, mac_addr);
 	r8712_enqueue_cmd(pcmdpriv, ph2c);
 	return _SUCCESS;
 }
@@ -813,7 +813,7 @@ u8 r8712_setassocsta_cmd(struct _adapter *padapter, u8 *mac_addr)
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetassocsta_para, _SetAssocSta_CMD_);
 	ph2c->rsp = (u8 *) psetassocsta_rsp;
 	ph2c->rspsz = sizeof(struct set_assocsta_rsp);
-	memcpy(psetassocsta_para->addr, mac_addr, ETH_ALEN);
+	ether_addr_copy(psetassocsta_para->addr, mac_addr);
 	r8712_enqueue_cmd(pcmdpriv, ph2c);
 	return _SUCCESS;
 }