[SCSI] isci: stop interpreting ->lldd_lu_reset() as an ata soft-reset

Driving resets from libsas-eh is pre-mature as libata will make a
decision about performing a softreset.  Currently libata determines
whether to perform a softreset based on ata_eh_followup_srst_needed(),
and none of those conditions apply to isci.

Remove the srst implementation and translate ->lldd_lu_reset() for ata
devices as a request to drive a reset via libata-eh.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/libsas/sas_ata.c

@@ -24,6 +24,7 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/async.h>
+#include <linux/export.h>
 
 #include <scsi/sas_ata.h>
 #include "sas_internal.h"
@@ -757,6 +758,7 @@ void sas_ata_schedule_reset(struct domain_device *dev)
 	ata_port_schedule_eh(ap);
 	spin_unlock_irqrestore(ap->lock, flags);
 }
+EXPORT_SYMBOL_GPL(sas_ata_schedule_reset);
 
 void sas_ata_wait_eh(struct domain_device *dev)
 {