Re: [PATCH] xhci: 'noxhci_port_switch' kernel parameter

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On Mon, Feb 24, 2014 at 12:37 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Feb 24, 2014 at 11:37:35AM -0800, Dan Williams wrote:
>> Add a command line switch for disabling ehci port switchover.  Useful
>> for working around / debugging xhci incompatibilities where ehci
>> operation is available.
>>
>> Reference: http://marc.info/?l=linux-usb&m=138920063001509&w=2
>
> What about if xhci is a kernel module?
>

Should still be ok because drivers/usb/host/pci-quirks.c is always built-in:
drivers/usb/host/Makefile:26:obj-$(CONFIG_PCI)          += pci-quirks.o

As far as the xhci driver is concerned the port switches are read-only.
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