[SCSI] cleanup usages of scsi_complete_async_scans

Now that scsi registers its async scan work with the async subsystem,
wait_for_device_probe() is sufficient for ensuring all scanning is
complete.

[jejb: fix merge problems with eea03c2 Make wait_for_device_probe() also do scsi_complete_async_scans()]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

Author: djbw

drivers/base/dd.c

@@ -24,7 +24,6 @@
 #include <linux/wait.h>
 #include <linux/async.h>
 #include <linux/pm_runtime.h>
-#include <scsi/scsi_scan.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -333,7 +332,6 @@ void wait_for_device_probe(void)
 	/* wait for the known devices to complete their probing */
 	wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
 	async_synchronize_full();
-	scsi_complete_async_scans();
 }
 EXPORT_SYMBOL_GPL(wait_for_device_probe);
 

drivers/scsi/scsi_scan.c

@@ -187,18 +187,6 @@ int scsi_complete_async_scans(void)
 	return 0;
 }
 
-/* Only exported for the benefit of scsi_wait_scan */
-EXPORT_SYMBOL_GPL(scsi_complete_async_scans);
-
-#ifndef MODULE
-/*
- * For async scanning we need to wait for all the scans to complete before
- * trying to mount the root fs.  Otherwise non-modular drivers may not be ready
- * yet.
- */
-late_initcall(scsi_complete_async_scans);
-#endif
-
 /**
  * scsi_unlock_floptical - unlock device via a special MODE SENSE command
  * @sdev:	scsi device to send command to