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xhci: print warning when HCE was set
When HCE(Host Controller Error) is set, it means that the xhci hardware controller has an error at this time, but the current xhci driver software does not log this event. By adding an HCE event detection in the xhci interrupt processing interface, a warning log is output to the system, which is convenient for system device status tracking. Signed-off-by: Longfang Liu <liulongfang@huawei.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20221130091944.2171610-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3031,6 +3031,11 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
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if (!(status & STS_EINT))
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goto out;
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if (status & STS_HCE) {
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xhci_warn(xhci, "WARNING: Host Controller Error\n");
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goto out;
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}
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if (status & STS_FATAL) {
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xhci_warn(xhci, "WARNING: Host System Error\n");
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xhci_halt(xhci);
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