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path: root/drivers/usb/core/urb.c
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Diffstat (limited to 'drivers/usb/core/urb.c')
-rw-r--r--drivers/usb/core/urb.c26
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index c0feee25ff0..c846fefb738 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -309,9 +309,8 @@ int usb_submit_urb(struct urb *urb, unsigned mem_flags)
unsigned int allowed;
/* enforce simple/standard policy */
- allowed = URB_ASYNC_UNLINK; // affects later unlinks
- allowed |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
- allowed |= URB_NO_INTERRUPT;
+ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP |
+ URB_NO_INTERRUPT);
switch (temp) {
case PIPE_BULK:
if (is_out)
@@ -400,14 +399,8 @@ int usb_submit_urb(struct urb *urb, unsigned mem_flags)
* canceled (rather than any other code) and will quickly be removed
* from host controller data structures.
*
- * In the past, clearing the URB_ASYNC_UNLINK transfer flag for the
- * URB indicated that the request was synchronous. This usage is now
- * deprecated; if the flag is clear the call will be forwarded to
- * usb_kill_urb() and the return value will be 0. In the future, drivers
- * should call usb_kill_urb() directly for synchronous unlinking.
- *
- * When the URB_ASYNC_UNLINK transfer flag for the URB is set, this
- * request is asynchronous. Success is indicated by returning -EINPROGRESS,
+ * This request is always asynchronous.
+ * Success is indicated by returning -EINPROGRESS,
* at which time the URB will normally have been unlinked but not yet
* given back to the device driver. When it is called, the completion
* function will see urb->status == -ECONNRESET. Failure is indicated
@@ -453,17 +446,6 @@ int usb_unlink_urb(struct urb *urb)
{
if (!urb)
return -EINVAL;
- if (!(urb->transfer_flags & URB_ASYNC_UNLINK)) {
-#ifdef CONFIG_DEBUG_KERNEL
- if (printk_ratelimit()) {
- printk(KERN_NOTICE "usb_unlink_urb() is deprecated for "
- "synchronous unlinks. Use usb_kill_urb() instead.\n");
- WARN_ON(1);
- }
-#endif
- usb_kill_urb(urb);
- return 0;
- }
if (!(urb->dev && urb->dev->bus && urb->dev->bus->op))
return -ENODEV;
return urb->dev->bus->op->unlink_urb(urb, -ECONNRESET);