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authorMathias Nyman <mathias.nyman@linux.intel.com>2021-01-29 16:00:33 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-29 16:16:51 +0300
commit69eaf9e79fa7c7ff4b1eb626493ce5a81e467520 (patch)
tree9a94841aa15b081e22888705510cb7bff25b370f /drivers/usb/host/xhci-ring.c
parentd8ac95001bea683d2088acb3e61613a27b8d2d5f (diff)
downloadlinux-69eaf9e79fa7c7ff4b1eb626493ce5a81e467520.tar.xz
xhci: move xhci_td_cleanup so it can be called by more functions
No funtional changes Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20210129130044.206855-17-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
-rw-r--r--drivers/usb/host/xhci-ring.c92
1 files changed, 46 insertions, 46 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 7011b1640a35..044c1f3176e1 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -749,6 +749,52 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci,
seg->bounce_offs = 0;
}
+static int xhci_td_cleanup(struct xhci_hcd *xhci, struct xhci_td *td,
+ struct xhci_ring *ep_ring, int *status)
+{
+ struct urb *urb = NULL;
+
+ /* Clean up the endpoint's TD list */
+ urb = td->urb;
+
+ /* if a bounce buffer was used to align this td then unmap it */
+ xhci_unmap_td_bounce_buffer(xhci, ep_ring, td);
+
+ /* Do one last check of the actual transfer length.
+ * If the host controller said we transferred more data than the buffer
+ * length, urb->actual_length will be a very big number (since it's
+ * unsigned). Play it safe and say we didn't transfer anything.
+ */
+ if (urb->actual_length > urb->transfer_buffer_length) {
+ xhci_warn(xhci, "URB req %u and actual %u transfer length mismatch\n",
+ urb->transfer_buffer_length, urb->actual_length);
+ urb->actual_length = 0;
+ *status = 0;
+ }
+ list_del_init(&td->td_list);
+ /* Was this TD slated to be cancelled but completed anyway? */
+ if (!list_empty(&td->cancelled_td_list))
+ list_del_init(&td->cancelled_td_list);
+
+ inc_td_cnt(urb);
+ /* Giveback the urb when all the tds are completed */
+ if (last_td_in_urb(td)) {
+ if ((urb->actual_length != urb->transfer_buffer_length &&
+ (urb->transfer_flags & URB_SHORT_NOT_OK)) ||
+ (*status != 0 && !usb_endpoint_xfer_isoc(&urb->ep->desc)))
+ xhci_dbg(xhci, "Giveback URB %p, len = %d, expected = %d, status = %d\n",
+ urb, urb->actual_length,
+ urb->transfer_buffer_length, *status);
+
+ /* set isoc urb status to 0 just as EHCI, UHCI, and OHCI */
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+ *status = 0;
+ xhci_giveback_urb_in_irq(xhci, td, *status);
+ }
+
+ return 0;
+}
+
static int xhci_reset_halted_ep(struct xhci_hcd *xhci, unsigned int slot_id,
unsigned int ep_index, enum xhci_ep_reset_type reset_type)
{
@@ -1991,52 +2037,6 @@ int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code)
return 0;
}
-static int xhci_td_cleanup(struct xhci_hcd *xhci, struct xhci_td *td,
- struct xhci_ring *ep_ring, int *status)
-{
- struct urb *urb = NULL;
-
- /* Clean up the endpoint's TD list */
- urb = td->urb;
-
- /* if a bounce buffer was used to align this td then unmap it */
- xhci_unmap_td_bounce_buffer(xhci, ep_ring, td);
-
- /* Do one last check of the actual transfer length.
- * If the host controller said we transferred more data than the buffer
- * length, urb->actual_length will be a very big number (since it's
- * unsigned). Play it safe and say we didn't transfer anything.
- */
- if (urb->actual_length > urb->transfer_buffer_length) {
- xhci_warn(xhci, "URB req %u and actual %u transfer length mismatch\n",
- urb->transfer_buffer_length, urb->actual_length);
- urb->actual_length = 0;
- *status = 0;
- }
- list_del_init(&td->td_list);
- /* Was this TD slated to be cancelled but completed anyway? */
- if (!list_empty(&td->cancelled_td_list))
- list_del_init(&td->cancelled_td_list);
-
- inc_td_cnt(urb);
- /* Giveback the urb when all the tds are completed */
- if (last_td_in_urb(td)) {
- if ((urb->actual_length != urb->transfer_buffer_length &&
- (urb->transfer_flags & URB_SHORT_NOT_OK)) ||
- (*status != 0 && !usb_endpoint_xfer_isoc(&urb->ep->desc)))
- xhci_dbg(xhci, "Giveback URB %p, len = %d, expected = %d, status = %d\n",
- urb, urb->actual_length,
- urb->transfer_buffer_length, *status);
-
- /* set isoc urb status to 0 just as EHCI, UHCI, and OHCI */
- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
- *status = 0;
- xhci_giveback_urb_in_irq(xhci, td, *status);
- }
-
- return 0;
-}
-
static int finish_td(struct xhci_hcd *xhci, struct xhci_td *td,
struct xhci_transfer_event *event,
struct xhci_virt_ep *ep, int *status)