[SCSI] bfa: driver compatibility with 32bit libs

Replaced usage of void * with u64 in data structure shared between
brocade user space libraries and the bfa driver to address pointer
size changes across 32-bit vs 64-bit to have the compatibility between
32bit library and 64bit driver and vice versa.

Signed-off-by: Vijaya Mohan Guvva <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>

drivers/scsi/bfa/bfad_bsg.c

···
 		goto out;
 	}
 
-	if (copy_from_user((uint8_t *)bsg_fcpt, bsg_data->payload,
+	if (copy_from_user((uint8_t *)bsg_fcpt,
+				(void *)(unsigned long)bsg_data->payload,
 				bsg_data->payload_len)) {
 		kfree(bsg_fcpt);
 		rc = -EIO;
···
 	kfree(rsp_kbuf);
 
 	/* Need a copy to user op */
-	if (copy_to_user(bsg_data->payload, (void *) bsg_fcpt,
-			 bsg_data->payload_len))
+	if (copy_to_user((void *)(unsigned long)bsg_data->payload,
+			(void *)bsg_fcpt, bsg_data->payload_len))
 		rc = -EIO;
 
 	kfree(bsg_fcpt);

drivers/scsi/bfa/bfad_bsg.h

···
 };
 #define bfa_bsg_fcpt_t struct bfa_bsg_fcpt_s
 
+#pragma pack(1)
 struct bfa_bsg_data {
 	int payload_len;
-	void *payload;
+	u64 payload;
 };
+#pragma pack()
 
 #define bfad_chk_iocmd_sz(__payload_len, __hdrsz, __bufsz)	\
 	(((__payload_len) != ((__hdrsz) + (__bufsz))) ?		\