Name
__scsi_device_lookup —
find a device given the host (UNLOCKED)
Synopsis
struct scsi_device * __scsi_device_lookup ( | struct Scsi_Host * shost, |
| uint channel, |
| uint id, |
| u64 lun) ; |
Arguments
struct Scsi_Host * shost
SCSI host pointer
uint channel
SCSI channel (zero if only one channel)
uint id
SCSI target number (physical unit number)
u64 lun
SCSI Logical Unit Number
Description
Looks up the scsi_device with the specified channel
, id
, lun
for a given host. The returned scsi_device does not have an additional
reference. You must hold the host's host_lock over this call and any access
to the returned scsi_device.
Note
The only reason why drivers would want to use this is because
they need to access the device list in irq context. Otherwise you
really want to use scsi_device_lookup instead.