[PATCH v5 4/5] sd: limit to use write life hints

[Kanchan Joshi]

From: Nitesh Shetty <nj.shetty at samsung.com>

The incoming hint value maybe either lifetime hint or placement hint.
Make SCSI interpret only temperature-based write lifetime hints.

Signed-off-by: Nitesh Shetty <nj.shetty at samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k at samsung.com>
---
 drivers/scsi/sd.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index dad3991397cf..82bd4b07314e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1191,8 +1191,8 @@ static u8 sd_group_number(struct scsi_cmnd *cmd)
 	if (!sdkp->rscs)
 		return 0;
 
-	return min3((u32)rq->write_hint, (u32)sdkp->permanent_stream_count,
-		    0x3fu);
+	return min3((u32)WRITE_LIFETIME_HINT(rq->write_hint),
+			(u32)sdkp->permanent_stream_count, 0x3fu);
 }
 
 static blk_status_t sd_setup_rw32_cmnd(struct scsi_cmnd *cmd, bool write,
@@ -1390,7 +1390,8 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 		ret = sd_setup_rw16_cmnd(cmd, write, lba, nr_blocks,
 					 protect | fua, dld);
 	} else if ((nr_blocks > 0xff) || (lba > 0x1fffff) ||
-		   sdp->use_10_for_rw || protect || rq->write_hint) {
+		   sdp->use_10_for_rw || protect ||
+		   WRITE_LIFETIME_HINT(rq->write_hint)) {
 		ret = sd_setup_rw10_cmnd(cmd, write, lba, nr_blocks,
 					 protect | fua);
 	} else {
-- 
2.25.1