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scsi: core: Delete scsi_{get,free}_host_dev()

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Since commit 0653c358d2 ("scsi: Drop gdth driver"), functions
scsi_{get,free}_host_dev() no longer have any in-tree users, so delete
them.

Link: https://lore.kernel.org/r/1631528047-30150-1-git-send-email-john.garry@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Nacked-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
John Garry 2021-09-13 18:14:07 +08:00 committed by Martin K. Petersen
parent ca4ff9e751
commit 6bd49b1a8d
2 changed files with 0 additions and 67 deletions
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57
drivers/scsi/scsi_scan.c
View File

@ -1902,60 +1902,3 @@ void scsi_forget_host(struct Scsi_Host *shost)
spin_unlock_irqrestore(shost->host_lock, flags);
}
/**
* scsi_get_host_dev - Create a scsi_device that points to the host adapter itself
* @shost: Host that needs a scsi_device
*
* Lock status: None assumed.
*
* Returns: The scsi_device or NULL
*
* Notes:
* Attach a single scsi_device to the Scsi_Host - this should
* be made to look like a "pseudo-device" that points to the
* HA itself.
*
* Note - this device is not accessible from any high-level
* drivers (including generics), which is probably not
* optimal. We can add hooks later to attach.
*/
struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)
{
struct scsi_device *sdev = NULL;
struct scsi_target *starget;
mutex_lock(&shost->scan_mutex);
if (!scsi_host_scan_allowed(shost))
goto out;
starget = scsi_alloc_target(&shost->shost_gendev, 0, shost->this_id);
if (!starget)
goto out;
sdev = scsi_alloc_sdev(starget, 0, NULL);
if (sdev)
sdev->borken = 0;
else
scsi_target_reap(starget);
put_device(&starget->dev);
out:
mutex_unlock(&shost->scan_mutex);
return sdev;
}
EXPORT_SYMBOL(scsi_get_host_dev);
/**
* scsi_free_host_dev - Free a scsi_device that points to the host adapter itself
* @sdev: Host device to be freed
*
* Lock status: None assumed.
*
* Returns: Nothing
*/
void scsi_free_host_dev(struct scsi_device *sdev)
{
BUG_ON(sdev->id != sdev->host->this_id);
__scsi_remove_device(sdev);
}
EXPORT_SYMBOL(scsi_free_host_dev);

10
include/scsi/scsi_host.h
View File

@ -797,16 +797,6 @@ void scsi_host_busy_iter(struct Scsi_Host *,
struct class_container;
/*
* These two functions are used to allocate and free a pseudo device
* which will connect to the host adapter itself rather than any
* physical device. You must deallocate when you are done with the
* thing. This physical pseudo-device isn't real and won't be available
* from any high-level drivers.
*/
extern void scsi_free_host_dev(struct scsi_device *);
extern struct scsi_device *scsi_get_host_dev(struct Scsi_Host *);
/*
* DIF defines the exchange of protection information between
* initiator and SBC block device.