Split the SCSI_IOCTL_GET_IDLUN handler from the main scsi_ioctl routine.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/scsi/scsi_ioctl.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index f6f16edecc67..634cf62ec6fd 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -218,6 +218,20 @@ static int sg_emulated_host(struct request_queue *q, int __user *p)
return put_user(1, p);
}
+static int scsi_get_idlun(struct scsi_device *sdev, void __user *argp)
+{
+ struct scsi_idlun v = {
+ .dev_id = (sdev->id & 0xff) +
+ ((sdev->lun & 0xff) << 8) +
+ ((sdev->channel & 0xff) << 16) +
+ ((sdev->host->host_no & 0xff) << 24),
+ .host_unique_id = sdev->host->unique_id
+ };
+ if (copy_to_user(argp, &v, sizeof(struct scsi_idlun)))
+ return -EFAULT;
+ return 0;
+}
+
static int scsi_send_start_stop(struct scsi_device *sdev, int data)
{
char cdb[MAX_COMMAND_SIZE] = { };
@@ -915,18 +929,8 @@ int scsi_ioctl(struct scsi_device *sdev, struct gendisk *disk, fmode_t mode,
return scsi_send_start_stop(sdev, 3);
case CDROMEJECT:
return scsi_send_start_stop(sdev, 2);
- case SCSI_IOCTL_GET_IDLUN: {
- struct scsi_idlun v = {
- .dev_id = (sdev->id & 0xff)
- + ((sdev->lun & 0xff) << 8)
- + ((sdev->channel & 0xff) << 16)
- + ((sdev->host->host_no & 0xff) << 24),
- .host_unique_id = sdev->host->unique_id
- };
- if (copy_to_user(arg, &v, sizeof(struct scsi_idlun)))
- return -EFAULT;
- return 0;
- }
+ case SCSI_IOCTL_GET_IDLUN:
+ return scsi_get_idlun(sdev, arg);
case SCSI_IOCTL_GET_BUS_NUMBER:
return put_user(sdev->host->host_no, (int __user *)arg);
case SCSI_IOCTL_PROBE_HOST:
--
2.30.2
