[PATCH] Some drives failing on SCT Write Same

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Restrict support SCT Write Same to devices which also support ZAC where 
support is required.

Reported-by: Mike Krinkin <krinkin.m.u@xxxxxxxxx>
Signed-off-by: Shaun Tancheff <shaun.tancheff@xxxxxxxxxxx>
---
 drivers/ata/libata-scsi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2f5487f..9cceb4a 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3562,9 +3562,9 @@ static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
 		supported = 3;
 		break;
 	case WRITE_SAME_16:
-		if (ata_id_sct_write_same(dev->id))
-			supported = 3;
-		break;
+		if (!ata_id_sct_write_same(dev->id))
+			break;
+		/* fallthrough: if SCT ... only enable for ZBC */
 	case ZBC_IN:
 	case ZBC_OUT:
 		if (ata_id_zoned_cap(dev->id) ||
-- 
2.9.3

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