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Commit 9983a5fc authored by Mathias Nyman's avatar Mathias Nyman Committed by Greg Kroah-Hartman
Browse files

xhci: rename EP_HALT_PENDING to EP_STOP_CMD_PENDING 



We don't want to confuse halted and stalled endpoint states with
a flag indicating we are waiting for a stop endpoint command to
finish or timeout

Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 505f581c

drivers/usb/host/xhci-ring.c

+3 −3
Original line number Diff line number Diff line
@@ -410,7 +410,7 @@ void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, 
	 * pointer command pending because the device can choose to start any

	 * stream once the endpoint is on the HW schedule.

	 */

	if ((ep_state & EP_HALT_PENDING) || (ep_state & SET_DEQ_PENDING) ||

	if ((ep_state & EP_STOP_CMD_PENDING) || (ep_state & SET_DEQ_PENDING) ||

	    (ep_state & EP_HALTED))

		return;

	writel(DB_VALUE(ep_index, stream_id), db_addr);
@@ -626,7 +626,7 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, 
static void xhci_stop_watchdog_timer_in_irq(struct xhci_hcd *xhci,

		struct xhci_virt_ep *ep)

{

	ep->ep_state &= ~EP_HALT_PENDING;

	ep->ep_state &= ~EP_STOP_CMD_PENDING;

	/* Can't del_timer_sync in interrupt, so we attempt to cancel.  If the

	 * timer is running on another CPU, we don't decrement stop_cmds_pending

	 * (since we didn't successfully stop the watchdog timer).
@@ -914,7 +914,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) 


	ep->stop_cmds_pending--;



	if (ep->stop_cmds_pending || !(ep->ep_state & EP_HALT_PENDING)) {

	if (ep->stop_cmds_pending || !(ep->ep_state & EP_STOP_CMD_PENDING)) {

		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,

				"Stop EP timer ran, but no command pending, "

				"exiting.");

drivers/usb/host/xhci.c

+3 −3
Original line number Diff line number Diff line
@@ -1563,13 +1563,13 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) 
	/* Queue a stop endpoint command, but only if this is

	 * the first cancellation to be handled.

	 */

	if (!(ep->ep_state & EP_HALT_PENDING)) {

	if (!(ep->ep_state & EP_STOP_CMD_PENDING)) {

		command = xhci_alloc_command(xhci, false, false, GFP_ATOMIC);

		if (!command) {

			ret = -ENOMEM;

			goto done;

		}

		ep->ep_state |= EP_HALT_PENDING;

		ep->ep_state |= EP_STOP_CMD_PENDING;

		ep->stop_cmds_pending++;

		ep->stop_cmd_timer.expires = jiffies +

			XHCI_STOP_EP_CMD_TIMEOUT * HZ;
@@ -3610,7 +3610,7 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) 


	/* Stop any wayward timer functions (which may grab the lock) */

	for (i = 0; i < 31; ++i) {

		virt_dev->eps[i].ep_state &= ~EP_HALT_PENDING;

		virt_dev->eps[i].ep_state &= ~EP_STOP_CMD_PENDING;

		del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);

	}

drivers/usb/host/xhci.h

+1 −1
Original line number Diff line number Diff line
@@ -912,7 +912,7 @@ struct xhci_virt_ep { 
	unsigned int			ep_state;

#define SET_DEQ_PENDING		(1 << 0)

#define EP_HALTED		(1 << 1)	/* For stall handling */

#define EP_HALT_PENDING		(1 << 2)	/* For URB cancellation */

#define EP_STOP_CMD_PENDING	(1 << 2)	/* For URB cancellation */

/* Transitioning the endpoint to using streams, don't enqueue URBs */

#define EP_GETTING_STREAMS	(1 << 3)

#define EP_HAS_STREAMS		(1 << 4)