[SCSI] mpt2sas: Removed compiler warnnings when logging is disabled

The compiler throws warning messages while compiling without
CONFIG_SCSI_MPT2SAS_LOGGING.
Set proper ifdef for CONFIG_SCSI_MPT2SAS_LOGGING to avoid warnnings.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/mpt2sas/mpt2sas_ctl.c

@@ -81,6 +81,7 @@ enum block_state {
 	BLOCKING,
 };
 
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
 /**
  * _ctl_sas_device_find_by_handle - sas device search
  * @ioc: per adapter object
@@ -107,7 +108,6 @@ _ctl_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
 	return r;
 }
 
-#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
 /**
  * _ctl_display_some_debug - debug routine
  * @ioc: per adapter object

drivers/scsi/mpt2sas/mpt2sas_scsih.c

@@ -2715,9 +2715,10 @@ static u8
 _scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
     u8 msix_index, u32 reply)
 {
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
 	Mpi2SasIoUnitControlReply_t *mpi_reply =
 	    mpt2sas_base_get_reply_virt_addr(ioc, reply);
-
+#endif
 	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
 	    "sc_complete:handle(0x%04x), (open) "
 	    "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",