sd: remove sd_is_zoned

Since commit 7437bb73 ("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.

Replace the helper with the simple open coded TYPE_ZBC check to fix this.

Fixes: 7437bb73 ("block: remove support for the host aware zone model")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20240617060532.127975-3-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/scsi/sd.c

@@ -466,10 +466,6 @@ provisioning_mode_store(struct device *dev, struct device_attribute *attr,
 	if (sdp->type != TYPE_DISK)
 		return -EINVAL;
 
-	/* ignore the provisioning mode for ZBC devices */
-	if (sd_is_zoned(sdkp))
-		return count;
-
 	mode = sysfs_match_string(lbp_mode, buf);
 	if (mode < 0)
 		return -EINVAL;
@@ -2288,7 +2284,7 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 	}
 
  out:
-	if (sd_is_zoned(sdkp))
+	if (sdkp->device->type == TYPE_ZBC)
 		good_bytes = sd_zbc_complete(SCpnt, good_bytes, &sshdr);
 
 	SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt,

drivers/scsi/sd.h

@@ -222,11 +222,6 @@ 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);
 
-static inline int sd_is_zoned(struct scsi_disk *sdkp)
-{
-	return sdkp->zoned == 1 || sdkp->device->type == TYPE_ZBC;
-}
-
 #ifdef CONFIG_BLK_DEV_ZONED
 
 int sd_zbc_read_zones(struct scsi_disk *sdkp, struct queue_limits *lim,

drivers/scsi/sd_zbc.c

@@ -232,7 +232,7 @@ int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
 	int zone_idx = 0;
 	int ret;
 
-	if (!sd_is_zoned(sdkp))
+	if (sdkp->device->type != TYPE_ZBC)
 		/* Not a zoned device */
 		return -EOPNOTSUPP;
 
@@ -300,7 +300,7 @@ static blk_status_t sd_zbc_cmnd_checks(struct scsi_cmnd *cmd)
 	struct scsi_disk *sdkp = scsi_disk(rq->q->disk);
 	sector_t sector = blk_rq_pos(rq);
 
-	if (!sd_is_zoned(sdkp))
+	if (sdkp->device->type != TYPE_ZBC)
 		/* Not a zoned device */
 		return BLK_STS_IOERR;
 
@@ -521,7 +521,7 @@ static int sd_zbc_check_capacity(struct scsi_disk *sdkp, unsigned char *buf,
 
 static void sd_zbc_print_zones(struct scsi_disk *sdkp)
 {
-	if (!sd_is_zoned(sdkp) || !sdkp->capacity)
+	if (sdkp->device->type != TYPE_ZBC || !sdkp->capacity)
 		return;
 
 	if (sdkp->capacity & (sdkp->zone_info.zone_blocks - 1))
@@ -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 (sdkp->device->type != TYPE_ZBC)
 		return 0;
-	}
 
 	/* READ16/WRITE16/SYNC16 is mandatory for ZBC devices */
 	sdkp->device->use_16_for_rw = 1;