We only check for the URB_SHORT_NOT_OK urb flag to set the urb status
to -EREMOTEIO for transfers that didn't transfer all data.
This will be done in __usb_hcd_giveback() for other than isoc tranfers,
so remove the redundant check from xhci.
Also fix a couple split lines in debug messages to make them greppable.
Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com>
---
drivers/usb/host/xhci-ring.c | 54 ++++++--------------------------------------
1 file changed, 7 insertions(+), 47 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b150079..ae3a02e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1896,9 +1896,6 @@ static int finish_td(struct xhci_hcd *xhci, struct
xhci_td *td,
urb->transfer_buffer_length,
urb->actual_length);
urb->actual_length = 0;
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
*status = 0;
}
list_del_init(&td->td_list);
@@ -1958,9 +1955,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct
xhci_td *td,
}
break;
case COMP_SHORT_TX:
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
*status = 0;
break;
case COMP_STOP_SHORT:
@@ -2007,16 +2001,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct
xhci_td *td,
if (event_trb != ep_ring->dequeue) {
/* The event was for the status stage */
if (event_trb == td->last_trb) {
- if (td->urb_length_set) {
- /* Don't overwrite a previously set error code
- */
- if ((*status == -EINPROGRESS || *status == 0) &&
- (td->urb->transfer_flags
- & URB_SHORT_NOT_OK))
- /* Did we already see a short data
- * stage? */
- *status = -EREMOTEIO;
- } else {
+ if (!td->urb_length_set) {
td->urb->actual_length =
td->urb->transfer_buffer_length;
}
@@ -2180,24 +2165,15 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci,
struct xhci_td *td,
/* Double check that the HW transferred everything. */
if (event_trb != td->last_trb ||
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
- xhci_warn(xhci, "WARN Successful completion "
- "on short TX\n");
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
- *status = 0;
+ xhci_warn(xhci, "WARN Successful completion on short
TX\n");
if ((xhci->quirks & XHCI_TRUST_TX_LENGTH))
trb_comp_code = COMP_SHORT_TX;
- } else {
- *status = 0;
}
+ *status = 0;
break;
case COMP_STOP_SHORT:
case COMP_SHORT_TX:
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
- *status = 0;
+ *status = 0;
break;
default:
/* Others already handled above */
@@ -2229,29 +2205,13 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci,
struct xhci_td *td,
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
if (td->urb->transfer_buffer_length <
td->urb->actual_length) {
- xhci_warn(xhci, "HC gave bad length "
- "of %d bytes left\n",
+ xhci_warn(xhci, "HC gave bad length of %d bytes
left\n",
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
td->urb->actual_length = 0;
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
- *status = 0;
+ *status = 0;
}
/* Don't overwrite a previously set error code */
- if (*status == -EINPROGRESS) {
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- *status = -EREMOTEIO;
- else
- *status = 0;
- }
- } else {
- td->urb->actual_length =
- td->urb->transfer_buffer_length;
- /* Ignore a short packet completion if the
- * untransferred length was zero.
- */
- if (*status == -EREMOTEIO)
+ if (*status == -EINPROGRESS)
*status = 0;
}
} else {
--
1.9.1
--
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