1 // SPDX-License-Identifier: GPL-2.0-only
5  * - get rid of some verify_areas and use __copy*user and __get/put_user
35  * ioctl_probe  --  return host identification
39  * Return an identifying string at @buffer, if @buffer is non-NULL, filling
49 			return -EFAULT;  in ioctl_probe()
51 		if (host->hostt->info)  in ioctl_probe()
52 			string = host->hostt->info(host);  in ioctl_probe()
54 			string = host->hostt->name;  in ioctl_probe()
60 				return -EFAULT;  in ioctl_probe()
109 				sdev->lockable = 0;  in ioctl_internal_command()
118 			if (sdev->removable)  in ioctl_internal_command()
122 			if (sdev->removable) {  in ioctl_internal_command()
123 				sdev->changed = 1;  in ioctl_internal_command()
127 			fallthrough;	/* for non-removable media */  in ioctl_internal_command()
147 	if (!sdev->removable || !sdev->lockable)  in scsi_set_medium_removal()
160 		sdev->locked = (state == SCSI_REMOVAL_PREVENT);  in scsi_set_medium_removal()
169  *          -ENXIO if there isn't a PCI device pointer
177 	struct device *dev = scsi_get_device(sdev->host);  in scsi_ioctl_get_pci()
181 		return -ENXIO;  in scsi_ioctl_get_pci()
188 		? -EFAULT: 0;  in scsi_ioctl_get_pci()
207 		       "ioctl, please convert it to SG_IO\n", current->comm);  in scsi_ioctl_common()
216 			.dev_id = (sdev->id & 0xff)  in scsi_ioctl_common()
217 				 + ((sdev->lun & 0xff) << 8)  in scsi_ioctl_common()
218 				 + ((sdev->channel & 0xff) << 16)  in scsi_ioctl_common()
219 				 + ((sdev->host->host_no & 0xff) << 24),  in scsi_ioctl_common()
220 			.host_unique_id = sdev->host->unique_id  in scsi_ioctl_common()
223 			return -EFAULT;  in scsi_ioctl_common()
227 		return put_user(sdev->host->host_no, (int __user *)arg);  in scsi_ioctl_common()
229 		return ioctl_probe(sdev->host, arg);  in scsi_ioctl_common()
232 			return -EACCES;  in scsi_ioctl_common()
233 		return sg_scsi_ioctl(sdev->request_queue, NULL, 0, arg);  in scsi_ioctl_common()
260 	return -ENOIOCTLCMD;  in scsi_ioctl_common()
264  * scsi_ioctl - Dispatch ioctl to scsi device
277 	if (ret != -ENOIOCTLCMD)  in scsi_ioctl()
280 	if (sdev->host->hostt->ioctl)  in scsi_ioctl()
281 		return sdev->host->hostt->ioctl(sdev, cmd, arg);  in scsi_ioctl()
283 	return -EINVAL;  in scsi_ioctl()
292 	if (ret != -ENOIOCTLCMD)  in scsi_compat_ioctl()
295 	if (sdev->host->hostt->compat_ioctl)  in scsi_compat_ioctl()
296 		return sdev->host->hostt->compat_ioctl(sdev, cmd, arg);  in scsi_compat_ioctl()
310 		if (scsi_host_in_recovery(sdev->host))  in scsi_ioctl_block_when_processing_errors()
311 			return -EAGAIN;  in scsi_ioctl_block_when_processing_errors()
314 			return -ENODEV;  in scsi_ioctl_block_when_processing_errors()