[PATCH 01/26] sd: fix sd_is_zoned

[Christoph Hellwig]

Since commit 7437bb73f087 ("block: remove support for the host aware zone
model"), only ZBC devices expose a zoned access model.  sd_is_zoned is
used to check for that and thus return false for host aware devices.

Fixes: 7437bb73f087 ("block: remove support for the host aware zone model")
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 drivers/scsi/sd.h     | 7 ++++++-
 drivers/scsi/sd_zbc.c | 7 +------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 726f1613f6cb56..65dff3c2108926 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -222,9 +222,14 @@ static inline sector_t sectors_to_logical(struct scsi_device *sdev, sector_t sec
 
 void sd_dif_config_host(struct scsi_disk *sdkp, struct queue_limits *lim);
 
+/*
+ * Check if we support a zoned model for this device.
+ *
+ * Note that host aware devices are treated as conventional by Linux.
+ */
 static inline int sd_is_zoned(struct scsi_disk *sdkp)
 {
-	return sdkp->zoned == 1 || sdkp->device->type == TYPE_ZBC;
+	return sdkp->device->type == TYPE_ZBC;
 }
 
 #ifdef CONFIG_BLK_DEV_ZONED
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index f685838d9ed214..422eaed8457227 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -598,13 +598,8 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, struct queue_limits *lim,
 	u32 zone_blocks = 0;
 	int ret;
 
-	if (!sd_is_zoned(sdkp)) {
-		/*
-		 * Device managed or normal SCSI disk, no special handling
-		 * required.
-		 */
+	if (!sd_is_zoned(sdkp))
 		return 0;
-	}
 
 	/* READ16/WRITE16/SYNC16 is mandatory for ZBC devices */
 	sdkp->device->use_16_for_rw = 1;
-- 
2.43.0