scsi: libsas: Change the coding style of sas_discover_sata()

The coding style where calling this interface is inconsistent with other
interfaces for SATA devices. The standard style for other SATA interfaces
is like:

    #ifdefine CONFIG_SCSI_SAS_ATA
    void sas_ata_task_abort(struct sas_task *task);
    #else
    static inline void sas_ata_task_abort(struct sas_task *task)
    {
    }
    #endif

And the callers does not have to do things like "#ifdefine CONFIG_SCSI_SAS_ATA"
and may call the interface directly. So follow the standard style here.

Cc: John Garry <john.g.garry@oracle.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index d5bc131..72fdb2e 100644 (file)
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -455,14 +455,8 @@ static void sas_discover_domain(struct work_struct *work)
                break;
        case SAS_SATA_DEV:
        case SAS_SATA_PM:
-#ifdef CONFIG_SCSI_SAS_ATA
                error = sas_discover_sata(dev);
                break;
-#else
-               pr_notice("ATA device seen but CONFIG_SCSI_SAS_ATA=N so cannot attach\n");
-               fallthrough;
-#endif
-               /* Fall through - only for the #else condition above. */
        default:
                error = -ENXIO;
                pr_err("unhandled device %d\n", dev->dev_type);

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 1aee3d0..159823e 100644 (file)
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -735,7 +735,6 @@ void sas_unregister_domain_devices(struct asd_sas_port *port, int gone);
 void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
 void sas_discover_event(struct asd_sas_port *, enum discover_event ev);
 
-int  sas_discover_sata(struct domain_device *);
 int  sas_discover_end_dev(struct domain_device *);
 
 void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *);

diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index 9c927d4..606b449 100644 (file)
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -36,8 +36,13 @@ void sas_ata_device_link_abort(struct domain_device *dev, bool force_reset);
 int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
                        int force_phy_id);
 int smp_ata_check_ready_type(struct ata_link *link);
+int sas_discover_sata(struct domain_device *dev);
 #else
 
+static inline void sas_ata_disabled_notice(void)
+{
+       pr_notice_once("ATA device seen but CONFIG_SCSI_SAS_ATA=N\n");
+}
 
 static inline int dev_is_sata(struct domain_device *dev)
 {
@@ -103,6 +108,12 @@ static inline int smp_ata_check_ready_type(struct ata_link *link)
 {
        return 0;
 }
+
+static inline int sas_discover_sata(struct domain_device *dev)
+{
+       sas_ata_disabled_notice();
+       return -ENXIO;
+}
 #endif
 
 #endif /* _SAS_ATA_H_ */