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xhci: Fix command ring stop regression in 4.11

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In 4.11 TRB completion codes were renamed to match spec.

Completion codes for command ring stopped and endpoint stopped
were mixed, leading to failures while handling a stopped command ring.

Use the correct completion code for command ring stopped events.

Fixes: 0b7c105a04 ("usb: host: xhci: rename completion codes to match spec")
Cc: <stable@vger.kernel.org> # 4.11
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2017-05-17 18:32:05 +03:00 committed by Greg Kroah-Hartman
parent 5db851cf20
commit 604d02a2a6
3 changed files with 9 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/host/xhci-hub.c
View file

@ -419,7 +419,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
wait_for_completion(cmd->completion);
if (cmd->status == COMP_COMMAND_ABORTED ||
cmd->status == COMP_STOPPED) {
cmd->status == COMP_COMMAND_RING_STOPPED) {
xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
ret = -ETIME;
}

8
drivers/usb/host/xhci-ring.c
View file

@ -323,7 +323,7 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
if (i_cmd->status != COMP_COMMAND_ABORTED)
continue;
i_cmd->status = COMP_STOPPED;
i_cmd->status = COMP_COMMAND_RING_STOPPED;
xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
i_cmd->command_trb);
@ -1380,7 +1380,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status));
/* If CMD ring stopped we own the trbs between enqueue and dequeue */
if (cmd_comp_code == COMP_STOPPED) {
if (cmd_comp_code == COMP_COMMAND_RING_STOPPED) {
complete_all(&xhci->cmd_ring_stop_completion);
return;
}
@ -1436,8 +1436,8 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
break;
case TRB_CMD_NOOP:
/* Is this an aborted command turned to NO-OP? */
if (cmd->status == COMP_STOPPED)
cmd_comp_code = COMP_STOPPED;
if (cmd->status == COMP_COMMAND_RING_STOPPED)
cmd_comp_code = COMP_COMMAND_RING_STOPPED;
break;
case TRB_RESET_EP:
WARN_ON(slot_id != TRB_TO_SLOT_ID(

8
drivers/usb/host/xhci.c
View file

@ -1764,7 +1764,7 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
switch (*cmd_status) {
case COMP_COMMAND_ABORTED:
case COMP_STOPPED:
case COMP_COMMAND_RING_STOPPED:
xhci_warn(xhci, "Timeout while waiting for configure endpoint command\n");
ret = -ETIME;
break;
@ -1814,7 +1814,7 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci,
switch (*cmd_status) {
case COMP_COMMAND_ABORTED:
case COMP_STOPPED:
case COMP_COMMAND_RING_STOPPED:
xhci_warn(xhci, "Timeout while waiting for evaluate context command\n");
ret = -ETIME;
break;
@ -3433,7 +3433,7 @@ static int xhci_discover_or_reset_device(struct usb_hcd *hcd,
ret = reset_device_cmd->status;
switch (ret) {
case COMP_COMMAND_ABORTED:
case COMP_STOPPED:
case COMP_COMMAND_RING_STOPPED:
xhci_warn(xhci, "Timeout waiting for reset device command\n");
ret = -ETIME;
goto command_cleanup;
@ -3818,7 +3818,7 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
*/
switch (command->status) {
case COMP_COMMAND_ABORTED:
case COMP_STOPPED:
case COMP_COMMAND_RING_STOPPED:
xhci_warn(xhci, "Timeout while waiting for setup device command\n");
ret = -ETIME;
break;