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scsi: libsas: Remove postreset from sas_sata_ops 

sas_sata_ops uses ata_std_postreset as .postreset callback. However,
ata_std_postreset() calls sata_scr_read()/sata_scr_write() which need to
access the ATA SCR register. This register not available in the libsas case
and the functions always return -EOPNOTSUPP.

Drop the .postreset callback.

Link: https://lore.kernel.org/r/1595408643-63011-2-git-send-email-luojiaxing@huawei.com
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Luo Jiaxing 2020-07-22 17:04:02 +08:00 committed by Martin K. Petersen
parent e3d2bf6505
commit 3a243c2c35
1 changed files with 0 additions and 1 deletions
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1
drivers/scsi/libsas/sas_ata.c
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@ -510,7 +510,6 @@ void sas_ata_end_eh(struct ata_port *ap)
static struct ata_port_operations sas_sata_ops = {
.prereset = ata_std_prereset,
.hardreset = sas_ata_hard_reset,
.postreset = ata_std_postreset,
.error_handler = ata_std_error_handler,
.post_internal_cmd = sas_ata_post_internal,
.qc_defer = ata_std_qc_defer,