Hi Mathias,
FYI, there are new smatch warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git
for-usb-next-command-queue
head: f8480a8dea8e428b6ba1ae8f4a5ed0a7691de7ad
commit: 5d8ce20aa8ad5fa1bf7c14833eaa60b94a78321f [4/10] xhci: use command
structures for xhci_queue_stop_endpoint()
drivers/usb/host/xhci-hub.c:326 xhci_stop_device() warn: inconsistent returns
spin_lock:&xhci->lock: locked (294 [(-12)]) unlocked (283 [(-12)], 326 [(-62)],
326 [0])
drivers/usb/host/xhci-hub.c:326 xhci_stop_device() warn: inconsistent returns
irqsave:flags: locked (294 [(-12)]) unlocked (283 [(-12)], 326 [(-62)], 326 [0])
git remote add xhci git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git
git remote update xhci
git checkout 5d8ce20aa8ad5fa1bf7c14833eaa60b94a78321f
vim +326 drivers/usb/host/xhci-hub.c
be88fe4f Andiry Xu 2010-10-14 310 if (timeleft <= 0) {
be88fe4f Andiry Xu 2010-10-14 311 xhci_warn(xhci, "%s while
waiting for stop endpoint command\n",
be88fe4f Andiry Xu 2010-10-14 312 timeleft == 0 ?
"Timeout" : "Signal");
be88fe4f Andiry Xu 2010-10-14 313 spin_lock_irqsave(&xhci->lock,
flags);
be88fe4f Andiry Xu 2010-10-14 314 /* The timeout might have raced
with the event ring handler, so
be88fe4f Andiry Xu 2010-10-14 315 * only delete from the list if
the item isn't poisoned.
be88fe4f Andiry Xu 2010-10-14 316 */
be88fe4f Andiry Xu 2010-10-14 317 if (cmd->cmd_list.next !=
LIST_POISON1)
be88fe4f Andiry Xu 2010-10-14 318
list_del(&cmd->cmd_list);
be88fe4f Andiry Xu 2010-10-14 319
spin_unlock_irqrestore(&xhci->lock, flags);
be88fe4f Andiry Xu 2010-10-14 320 ret = -ETIME;
be88fe4f Andiry Xu 2010-10-14 321 goto command_cleanup;
be88fe4f Andiry Xu 2010-10-14 322 }
be88fe4f Andiry Xu 2010-10-14 323
be88fe4f Andiry Xu 2010-10-14 324 command_cleanup:
be88fe4f Andiry Xu 2010-10-14 325 xhci_free_command(xhci, cmd);
be88fe4f Andiry Xu 2010-10-14 @326 return ret;
be88fe4f Andiry Xu 2010-10-14 327 }
be88fe4f Andiry Xu 2010-10-14 328
be88fe4f Andiry Xu 2010-10-14 329 /*
be88fe4f Andiry Xu 2010-10-14 330 * Ring device, it rings the all doorbells
unconditionally.
be88fe4f Andiry Xu 2010-10-14 331 */
56192531 Andiry Xu 2010-10-14 332 void xhci_ring_device(struct xhci_hcd
*xhci, int slot_id)
be88fe4f Andiry Xu 2010-10-14 333 {
be88fe4f Andiry Xu 2010-10-14 334 int i;
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