diff options
author | Alan Stern | 2012-01-10 13:43:40 -0500 |
---|---|---|
committer | Greg Kroah-Hartman | 2012-02-08 17:36:41 -0800 |
commit | af74d2dae8f85a0e90a30594beb507f5d954fa3f (patch) | |
tree | abefa30519f9e8737eae14001337bfabdf19a44e /drivers/usb/storage/scsiglue.c | |
parent | 09b6b51b0b6c1b9bb61815baf205e4d74c89ff04 (diff) |
usb-storage: reorganize target-specific code
Now that usb-storage has a target_alloc() routine, this patch (as1508)
moves some existing target-specific code out of the slave_alloc()
routine to where it really belongs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
-rw-r--r-- | drivers/usb/storage/scsiglue.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index dc68cc9fef5d..a324a5d21e99 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -78,8 +78,6 @@ static const char* host_info(struct Scsi_Host *host) static int slave_alloc (struct scsi_device *sdev) { - struct us_data *us = host_to_us(sdev->host); - /* * Set the INQUIRY transfer length to 36. We don't use any of * the extra data and many devices choke if asked for more or @@ -104,18 +102,6 @@ static int slave_alloc (struct scsi_device *sdev) */ blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1)); - /* - * The UFI spec treates the Peripheral Qualifier bits in an - * INQUIRY result as reserved and requires devices to set them - * to 0. However the SCSI spec requires these bits to be set - * to 3 to indicate when a LUN is not present. - * - * Let the scanning code know if this target merely sets - * Peripheral Device Type to 0x1f to indicate no LUN. - */ - if (us->subclass == USB_SC_UFI) - sdev->sdev_target->pdt_1f_for_no_lun = 1; - return 0; } @@ -278,6 +264,8 @@ static int slave_configure(struct scsi_device *sdev) static int target_alloc(struct scsi_target *starget) { + struct us_data *us = host_to_us(dev_to_shost(starget->dev.parent)); + /* * Some USB drives don't support REPORT LUNS, even though they * report a SCSI revision level above 2. Tell the SCSI layer @@ -285,6 +273,19 @@ static int target_alloc(struct scsi_target *starget) * scan instead. */ starget->no_report_luns = 1; + + /* + * The UFI spec treats the Peripheral Qualifier bits in an + * INQUIRY result as reserved and requires devices to set them + * to 0. However the SCSI spec requires these bits to be set + * to 3 to indicate when a LUN is not present. + * + * Let the scanning code know if this target merely sets + * Peripheral Device Type to 0x1f to indicate no LUN. + */ + if (us->subclass == USB_SC_UFI) + starget->pdt_1f_for_no_lun = 1; + return 0; } |