Re: [PATCH 4/4] xhci: Allow xHCI drivers to be built as separate modules

From: Andrew Bresticker
Date: Mon Jul 14 2014 - 13:21:09 EST


On Thu, Jul 10, 2014 at 11:34 AM, Julius Werner <jwerner@xxxxxxxxxxxx> wrote:
>> diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
>> index af89a90..bafba71 100644
>> --- a/drivers/usb/host/Makefile
>> +++ b/drivers/usb/host/Makefile
>> @@ -15,19 +15,19 @@ fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o
>> xhci-hcd-y := xhci.o xhci-mem.o
>> xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o
>> xhci-hcd-y += xhci-trace.o
>> -xhci-hcd-$(CONFIG_PCI) += xhci-pci.o
>>
>> -ifneq ($(CONFIG_USB_XHCI_PLATFORM), )
>> - xhci-hcd-y += xhci-plat.o
>> +xhci-plat-hcd-y := xhci-plat.o
>> ifneq ($(CONFIG_USB_XHCI_MVEBU), )
>> - xhci-hcd-y += xhci-mvebu.o
>> -endif
>
> nit: Can do this even simpler now, just
> "xhci-plat-hcd-$(CONFIG_USB_XHCI_MVEBU) += xhci-mvebu.o" without the
> ifneq.

Nope - since CONFIG_USB_XHCI_MVEBU can be 'y' or 'm' we need the ifneq
here (which matches against both) to ensure xhci-mvebu.o is built is
part of xhci-plat-hcd.o.
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