[PATCH] [USB] UAS: Rename urbs by pipe

Luben Tuikov
2010-10-28T20:05:54Z

The reason to do this is to accommodate sending
different IU types using the existing
infrastructure.

Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
---
drivers/usb/storage/uas.c | 33 ++++++++++++++++-----------------
1 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 17e1820..48dc2b8 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -97,8 +97,8 @@ struct uas_dev_info {
};

enum {
- ALLOC_SENSE_URB = (1 << 0),
- SUBMIT_SENSE_URB = (1 << 1),
+ ALLOC_STATUS_URB = (1 << 0),
+ SUBMIT_STATUS_URB = (1 << 1),
ALLOC_DATA_IN_URB = (1 << 2),
SUBMIT_DATA_IN_URB = (1 << 3),
ALLOC_DATA_OUT_URB = (1 << 4),
@@ -112,13 +112,12 @@ struct uas_cmd_info {
unsigned int state;
unsigned int stream;
struct urb *cmd_urb;
- struct urb *sense_urb;
+ struct urb *status_urb;
struct urb *data_in_urb;
struct urb *data_out_urb;
struct list_head list;
};

-/* I hate forward declarations, but I actually have a loop */
static int uas_submit_urbs(struct scsi_cmnd *cmnd,
struct uas_dev_info *devinfo, gfp_t gfp);

@@ -204,7 +203,7 @@ static void uas_xfer_data(struct urb *urb, struct scsi_cmnd *cmnd,
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
int err;

- cmdinfo->state = direction | SUBMIT_SENSE_URB;
+ cmdinfo->state = direction | SUBMIT_STATUS_URB;
err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
if (err) {
spin_lock(&uas_work_lock);
@@ -360,21 +359,21 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
{
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;

- if (cmdinfo->state & ALLOC_SENSE_URB) {
- cmdinfo->sense_urb = uas_alloc_sense_urb(devinfo, gfp, cmnd,
- cmdinfo->stream);
- if (!cmdinfo->sense_urb)
+ if (cmdinfo->state & ALLOC_STATUS_URB) {
+ cmdinfo->status_urb = uas_alloc_sense_urb(devinfo, gfp, cmnd,
+ cmdinfo->stream);
+ if (!cmdinfo->status_urb)
return SCSI_MLQUEUE_DEVICE_BUSY;
- cmdinfo->state &= ~ALLOC_SENSE_URB;
+ cmdinfo->state &= ~ALLOC_STATUS_URB;
}

- if (cmdinfo->state & SUBMIT_SENSE_URB) {
- if (usb_submit_urb(cmdinfo->sense_urb, gfp)) {
+ if (cmdinfo->state & SUBMIT_STATUS_URB) {
+ if (usb_submit_urb(cmdinfo->status_urb, gfp)) {
scmd_printk(KERN_INFO, cmnd,
"sense urb submission failure\n");
return SCSI_MLQUEUE_DEVICE_BUSY;
}
- cmdinfo->state &= ~SUBMIT_SENSE_URB;
+ cmdinfo->state &= ~SUBMIT_STATUS_URB;
}

if (cmdinfo->state & ALLOC_DATA_IN_URB) {
@@ -443,7 +442,7 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,

BUILD_BUG_ON(sizeof(struct uas_cmd_info) > sizeof(struct scsi_pointer));

- if (!cmdinfo->sense_urb && sdev->current_cmnd)
+ if (!cmdinfo->status_urb && sdev->current_cmnd)
return SCSI_MLQUEUE_DEVICE_BUSY;

if (blk_rq_tagged(cmnd->request)) {
@@ -455,7 +454,7 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,

cmnd->scsi_done = done;

- cmdinfo->state = ALLOC_SENSE_URB | SUBMIT_SENSE_URB |
+ cmdinfo->state = ALLOC_STATUS_URB | SUBMIT_STATUS_URB |
ALLOC_CMD_URB | SUBMIT_CMD_URB;

switch (cmnd->sc_data_direction) {
@@ -478,8 +477,8 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,
err = uas_submit_urbs(cmnd, devinfo, GFP_ATOMIC);
if (err) {
/* If we did nothing, give up now */
- if (cmdinfo->state & SUBMIT_SENSE_URB) {
- usb_free_urb(cmdinfo->sense_urb);
+ if (cmdinfo->state & SUBMIT_STATUS_URB) {
+ usb_free_urb(cmdinfo->status_urb);
return SCSI_MLQUEUE_DEVICE_BUSY;
}
spin_lock(&uas_work_lock);
--
1.7.0.1