The USB PCI quirks code gets built into the kernel whenever CONFIG_PCI is enabled, even if CONFIG_USB is not set. This can cause unnecessary messages to show up in the kernel log, such as "CONFIG_USB_XHCI_HCD is turned off, defaulting to EHCI" (which makes no sense when the kernel has been configured without host-side USB support).
This patch addresses the problem by removing the Makefile line that adds the drivers/usb/host/ subdirectory to the build list when CONFIG_PCI is set. The quirks code will still get built if it is needed, because the Kconfig symbols for the individual host controller drivers (such as CONFIG_USB_EHCI_HCD) will still cause the host/ directory to be built. Signed-off-by: Alan Stern <[email protected]> Reported-by: Toralf Förster <[email protected]> Tested-by: Toralf Förster <[email protected]> --- [as1778] drivers/usb/Makefile | 1 - 1 file changed, 1 deletion(-) Index: usb-4.0/drivers/usb/Makefile =================================================================== --- usb-4.0.orig/drivers/usb/Makefile +++ usb-4.0/drivers/usb/Makefile @@ -12,7 +12,6 @@ obj-$(CONFIG_USB_ISP1760) += isp1760/ obj-$(CONFIG_USB_MON) += mon/ -obj-$(CONFIG_PCI) += host/ obj-$(CONFIG_USB_EHCI_HCD) += host/ obj-$(CONFIG_USB_ISP116X_HCD) += host/ obj-$(CONFIG_USB_OHCI_HCD) += host/ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
