@@ -5339,7 +5339,7 @@ EXPORT_SYMBOL_GPL(ata_host_resume);
#endif
const struct device_type ata_port_type = {
- .name = "ata_port",
+ .name = ATA_PORT_TYPE_NAME,
#ifdef CONFIG_PM
.pm = &ata_port_pm_ops,
#endif
@@ -266,6 +266,10 @@ void ata_tport_delete(struct ata_port *ap)
put_device(dev);
}
+static const struct device_type ata_port_sas_type = {
+ .name = ATA_PORT_TYPE_NAME,
+};
+
/** ata_tport_add - initialize a transport ATA port structure
*
* @parent: parent device
@@ -283,7 +287,10 @@ int ata_tport_add(struct device *parent,
struct device *dev = &ap->tdev;
device_initialize(dev);
- dev->type = &ata_port_type;
+ if (ap->flags & ATA_FLAG_SAS_HOST)
+ dev->type = &ata_port_sas_type;
+ else
+ dev->type = &ata_port_type;
dev->parent = parent;
ata_host_get(ap->host);
@@ -30,6 +30,8 @@ enum {
ATA_DNXFER_QUIET = (1 << 31),
};
+#define ATA_PORT_TYPE_NAME "ata_port"
+
extern atomic_t ata_print_id;
extern int atapi_passthru16;
extern int libata_fua;
libsas does its own domain based power management of ports. For such ports, libata should not use a device type defining power management operations as executing these operations for suspend/resume in addition to libsas calls to ata_sas_port_suspend() and ata_sas_port_resume() is not necessary (and likely dangerous to do, even though problems are not seen currently). Introduce the new ata_port_sas_type device_type for ports managed by libsas. This new device type is used in ata_tport_add() and is defined without power management operations. Fixes: 2fcbdcb4c802 ("[SCSI] libata: export ata_port suspend/resume infrastructure for sas") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> --- drivers/ata/libata-core.c | 2 +- drivers/ata/libata-transport.c | 9 ++++++++- drivers/ata/libata.h | 2 ++ 3 files changed, 11 insertions(+), 2 deletions(-)