ata,scsi: remove ata_sas_port_{start,stop} callbacks
Callbacks are empty now, so remove them.
Also, remove the call to ap->ops->port_start() in ata_sas_port_init(),
as this would otherwise cause a NULL pointer dereference, now when the
callback is gone.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[niklas: remove the call to ap->ops->port_start() in ata_sas_port_init()]
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
index cf401a5..ce392b5 100644
--- a/drivers/ata/libata-sata.c
+++ b/drivers/ata/libata-sata.c
@@ -1145,40 +1145,6 @@ struct ata_port *ata_sas_port_alloc(struct ata_host *host,
EXPORT_SYMBOL_GPL(ata_sas_port_alloc);
/**
- * ata_sas_port_start - Set port up for dma.
- * @ap: Port to initialize
- *
- * Called just after data structures for each port are
- * initialized.
- *
- * May be used as the port_start() entry in ata_port_operations.
- *
- * LOCKING:
- * Inherited from caller.
- */
-int ata_sas_port_start(struct ata_port *ap)
-{
- /* the port is marked as frozen at allocation time */
- return 0;
-}
-EXPORT_SYMBOL_GPL(ata_sas_port_start);
-
-/**
- * ata_sas_port_stop - Undo ata_sas_port_start()
- * @ap: Port to shut down
- *
- * May be used as the port_stop() entry in ata_port_operations.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-void ata_sas_port_stop(struct ata_port *ap)
-{
-}
-EXPORT_SYMBOL_GPL(ata_sas_port_stop);
-
-/**
* ata_sas_async_probe - simply schedule probing and return
* @ap: Port to probe
*
@@ -1211,10 +1177,6 @@ EXPORT_SYMBOL_GPL(ata_sas_sync_probe);
int ata_sas_port_init(struct ata_port *ap)
{
- int rc = ap->ops->port_start(ap);
-
- if (rc)
- return rc;
ap->print_id = atomic_inc_return(&ata_print_id);
return 0;
}
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 77714a4..7ead1f1 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -565,8 +565,6 @@ static struct ata_port_operations sas_sata_ops = {
.qc_prep = ata_noop_qc_prep,
.qc_issue = sas_ata_qc_issue,
.qc_fill_rtf = sas_ata_qc_fill_rtf,
- .port_start = ata_sas_port_start,
- .port_stop = ata_sas_port_stop,
.set_dmamode = sas_ata_set_dmamode,
.sched_eh = sas_ata_sched_eh,
.end_eh = sas_ata_end_eh,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index d61e546..f8f8b55 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1244,10 +1244,8 @@ extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
extern void ata_sas_async_probe(struct ata_port *ap);
extern int ata_sas_sync_probe(struct ata_port *ap);
extern int ata_sas_port_init(struct ata_port *);
-extern int ata_sas_port_start(struct ata_port *ap);
extern int ata_sas_tport_add(struct device *parent, struct ata_port *ap);
extern void ata_sas_tport_delete(struct ata_port *ap);
-extern void ata_sas_port_stop(struct ata_port *ap);
extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *);
extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap);
extern void ata_tf_to_fis(const struct ata_taskfile *tf,
