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uas: Cleanup uas_log_cmd_state usage 

Instead of doing:

uas_log_cmd_state(cmnd, __func__)
scmd_printk(KERN_ERR, cmnd, "error doing foo %d\n", err)

On error, resulting in 2 log calls for a single error, make uas_log_cmd_state
take a status code, and change calls like the above to:

uas_log_cmd_state(cmnd, "error doing foo", err)

Also change various sanity checks (which should never trigger) from:
"scmd_printk(KERN_ERR, cmnd, "sanity foo failed\n")" to calling the new
uas_log_cmd_state(), so that when they do trigger we get more info.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2014-09-13 12:26:49 +02:00 committed by Greg Kroah-Hartman
parent 102c00cb91
commit 1ad7ed5af3
1 changed files with 19 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
drivers/usb/storage/uas.c
View File

@ -78,7 +78,8 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
static void uas_do_work(struct work_struct *work);
static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller);
static void uas_free_streams(struct uas_dev_info *devinfo);
static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller);
static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *prefix,
int status);
static void uas_do_work(struct work_struct *work)
{
@ -139,7 +140,7 @@ static void uas_zap_pending(struct uas_dev_info *devinfo, int result)
cmnd = devinfo->cmnd[i];
cmdinfo = (void *)&cmnd->SCp;
uas_log_cmd_state(cmnd, __func__);
uas_log_cmd_state(cmnd, __func__, 0);
/* Sense urbs were killed, clear COMMAND_INFLIGHT manually */
cmdinfo->state &= ~COMMAND_INFLIGHT;
cmnd->result = result << 16;
@ -188,13 +189,14 @@ static int uas_get_tag(struct scsi_cmnd *cmnd)
return tag;
}
static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller)
static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *prefix,
int status)
{
struct uas_cmd_info *ci = (void *)&cmnd->SCp;
scmd_printk(KERN_INFO, cmnd,
"%s tag %d inflight:%s%s%s%s%s%s%s%s%s%s%s%s ",
caller, uas_get_tag(cmnd),
"%s %d tag %d inflight:%s%s%s%s%s%s%s%s%s%s%s%s ",
prefix, status, uas_get_tag(cmnd),
(ci->state & SUBMIT_STATUS_URB) ? " s-st" : "",
(ci->state & ALLOC_DATA_IN_URB) ? " a-in" : "",
(ci->state & SUBMIT_DATA_IN_URB) ? " s-in" : "",
@ -295,7 +297,7 @@ static void uas_stat_cmplt(struct urb *urb)
cmdinfo = (void *)&cmnd->SCp;
if (!(cmdinfo->state & COMMAND_INFLIGHT)) {
scmd_printk(KERN_ERR, cmnd, "unexpected status cmplt\n");
uas_log_cmd_state(cmnd, "unexpected status cmplt", 0);
goto out;
}
@ -313,7 +315,7 @@ static void uas_stat_cmplt(struct urb *urb)
case IU_ID_READ_READY:
if (!cmdinfo->data_in_urb ||
(cmdinfo->state & DATA_IN_URB_INFLIGHT)) {
scmd_printk(KERN_ERR, cmnd, "unexpected read rdy\n");
uas_log_cmd_state(cmnd, "unexpected read rdy", 0);
break;
}
uas_xfer_data(urb, cmnd, SUBMIT_DATA_IN_URB);
@ -321,14 +323,13 @@ static void uas_stat_cmplt(struct urb *urb)
case IU_ID_WRITE_READY:
if (!cmdinfo->data_out_urb ||
(cmdinfo->state & DATA_OUT_URB_INFLIGHT)) {
scmd_printk(KERN_ERR, cmnd, "unexpected write rdy\n");
uas_log_cmd_state(cmnd, "unexpected write rdy", 0);
break;
}
uas_xfer_data(urb, cmnd, SUBMIT_DATA_OUT_URB);
break;
default:
scmd_printk(KERN_ERR, cmnd,
"Bogus IU (%d) received on status pipe\n", iu->iu_id);
uas_log_cmd_state(cmnd, "bogus IU", iu->iu_id);
}
out:
usb_free_urb(urb);
@ -374,17 +375,13 @@ static void uas_data_cmplt(struct urb *urb)
/* Data urbs should not complete before the cmd urb is submitted */
if (cmdinfo->state & SUBMIT_CMD_URB) {
scmd_printk(KERN_ERR, cmnd, "unexpected data cmplt\n");
uas_log_cmd_state(cmnd, "unexpected data cmplt", 0);
goto out;
}
if (urb->status) {
if (urb->status != -ENOENT && urb->status != -ECONNRESET) {
uas_log_cmd_state(cmnd, __func__);
scmd_printk(KERN_ERR, cmnd,
"data cmplt err %d stream %d\n",
urb->status, urb->stream_id);
}
if (urb->status != -ENOENT && urb->status != -ECONNRESET)
uas_log_cmd_state(cmnd, "data cmplt err", urb->status);
/* error: no data transfered */
sdb->resid = sdb->length;
} else {
@ -508,10 +505,7 @@ static struct urb *uas_submit_sense_urb(struct scsi_cmnd *cmnd,
err = usb_submit_urb(urb, gfp);
if (err) {
usb_unanchor_urb(urb);
uas_log_cmd_state(cmnd, __func__);
shost_printk(KERN_INFO, shost,
"sense urb submission error %d stream %d\n",
err, stream);
uas_log_cmd_state(cmnd, "sense submit err", err);
usb_free_urb(urb);
return NULL;
}
@ -547,10 +541,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
err = usb_submit_urb(cmdinfo->data_in_urb, gfp);
if (err) {
usb_unanchor_urb(cmdinfo->data_in_urb);
uas_log_cmd_state(cmnd, __func__);
scmd_printk(KERN_INFO, cmnd,
"data in urb submission error %d stream %d\n",
err, cmdinfo->data_in_urb->stream_id);
uas_log_cmd_state(cmnd, "data in submit err", err);
return SCSI_MLQUEUE_DEVICE_BUSY;
}
cmdinfo->state &= ~SUBMIT_DATA_IN_URB;
@ -571,10 +562,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
err = usb_submit_urb(cmdinfo->data_out_urb, gfp);
if (err) {
usb_unanchor_urb(cmdinfo->data_out_urb);
uas_log_cmd_state(cmnd, __func__);
scmd_printk(KERN_INFO, cmnd,
"data out urb submission error %d stream %d\n",
err, cmdinfo->data_out_urb->stream_id);
uas_log_cmd_state(cmnd, "data out submit err", err);
return SCSI_MLQUEUE_DEVICE_BUSY;
}
cmdinfo->state &= ~SUBMIT_DATA_OUT_URB;
@ -593,9 +581,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
err = usb_submit_urb(cmdinfo->cmd_urb, gfp);
if (err) {
usb_unanchor_urb(cmdinfo->cmd_urb);
uas_log_cmd_state(cmnd, __func__);
scmd_printk(KERN_INFO, cmnd,
"cmd urb submission error %d\n", err);
uas_log_cmd_state(cmnd, "cmd submit err", err);
return SCSI_MLQUEUE_DEVICE_BUSY;
}
cmdinfo->cmd_urb = NULL;
@ -701,7 +687,7 @@ static int uas_eh_abort_handler(struct scsi_cmnd *cmnd)
spin_lock_irqsave(&devinfo->lock, flags);
uas_log_cmd_state(cmnd, __func__);
uas_log_cmd_state(cmnd, __func__, 0);
/* Ensure that try_complete does not call scsi_done */
cmdinfo->state |= COMMAND_ABORTED;