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xhci: show fault reason for a failed enable slot command

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Show the completion code of a unsuccessful "enable slot" command.
Add it in a human readable form to the existing error message.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2022-09-21 15:34:48 +03:00 committed by Greg Kroah-Hartman
parent 484d6f7aa3
commit e11487f1f6
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/xhci.c
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@ -4096,7 +4096,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
slot_id = command->slot_id;
if (!slot_id || command->status != COMP_SUCCESS) {
xhci_err(xhci, "Error while assigning device slot ID\n");
xhci_err(xhci, "Error while assigning device slot ID: %s\n",
xhci_trb_comp_code_string(command->status));
xhci_err(xhci, "Max number of devices this xHCI host supports is %u.\n",
HCS_MAX_SLOTS(
readl(&xhci->cap_regs->hcs_params1)));