On Mon, Sep 11, 2023 at 01:02:04PM +0900, Damien Le Moal wrote:
> 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@xxxxxxxxxxxxxxx
> Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@xxxxxxxxxxxxx>
