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Message-ID: <1595665131-24543-2-git-send-email-luojiaxing@huawei.com>
Date:   Sat, 25 Jul 2020 16:18:50 +0800
From:   Luo Jiaxing <luojiaxing@...wei.com>
To:     <martin.petersen@...cle.com>, <jejb@...ux.ibm.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <john.garry@...wei.com>, <yanaijie@...wei.com>,
        <chenxiang66@...ilicon.com>, <luojiaxing@...wei.com>,
        <linuxarm@...wei.com>
Subject: [PATCH v2 1/2] scsi: libsas: delete postreset at sas_sata_ops

We fill postreset with ata_std_postreset() at sas_sata_ops before, but we
found out that ata_std_postreset() call sata_scr_read()/sata_scr_write()
which need to access SCR register. Actually we don't own these kind of
register, so sata_scr_read()/sata_scr_write always return -EOPNOTSUPP.

We drop ata_std_postreset() at sas_sata_ops.

Signed-off-by: Luo Jiaxing <luojiaxing@...wei.com>
Reviewed-by: John Garry <john.garry@...wei.com>
Reviewed-by: Jason Yan <yanaijie@...wei.com>
---
 drivers/scsi/libsas/sas_ata.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 5d716d3..a7d16d2 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -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,
-- 
2.7.4

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