[SCSI] libsas: make ATA functions selectable by a config option
Not everyone wants libsas automatically to pull in libata. This patch
makes the behaviour configurable, so you can build libsas with or
without ATA support.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index 3407c81..dd5edc9 100644
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -28,6 +28,8 @@
#include <linux/libata.h>
#include <scsi/libsas.h>
+#ifdef CONFIG_SCSI_SAS_ATA
+
static inline int dev_is_sata(struct domain_device *dev)
{
return (dev->rphy->identify.target_port_protocols & SAS_PROTOCOL_SATA);
@@ -38,4 +40,21 @@
void sas_ata_task_abort(struct sas_task *task);
+#else
+
+
+static inline int dev_is_sata(struct domain_device *dev)
+{
+ return 0;
+}
+int sas_ata_init_host_and_port(struct domain_device *found_dev,
+ struct scsi_target *starget)
+{
+ return 0;
+}
+void sas_ata_task_abort(struct sas_task *task)
+{
+}
+#endif
+
#endif /* _SAS_ATA_H_ */
