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| author | Damien Le Moal <dlemoal@kernel.org> | 2023-09-08 14:04:52 +0300 |
|---|---|---|
| committer | Damien Le Moal <dlemoal@kernel.org> | 2023-09-28 15:23:14 +0300 |
| commit | 75e2bd5f1ede42a2bc88aa34b431e1ace8e0bea0 (patch) | |
| tree | 1ed257322f5ff3547f0bb8d7c2ccf2a5cf5c7d6e /drivers/ata/libata.h | |
| parent | 8b4d9469d0b0e553208ee6f62f2807111fde18b9 (diff) | |
| download | linux-75e2bd5f1ede42a2bc88aa34b431e1ace8e0bea0.tar.xz | |
ata: libata-core: Do not register PM operations for SAS ports
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>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ata/libata.h')
| -rw-r--r-- | drivers/ata/libata.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 820299bd9d06..05ac80da8ebc 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -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; |