The USB_OCTEON_EHCI is deprecated and only selects proper driver so there is no need to compile test it. Since it selects USB_EHCI_BIG_ENDIAN_MMIO it causes compilation failures on certain big endian architectures (e.g. m68k): In file included from drivers/usb/host/ehci-mxc.c:19:0: drivers/usb/host/ehci.h: In function ‘ehci_readl’: drivers/usb/host/ehci.h:743:3: error: implicit declaration of function ‘readl_be’ [-Werror=implicit-function-declaration] Reported-by: kbuild test robot <lkp@xxxxxxxxx> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- drivers/usb/host/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index da14a3d16b57..803023fcb3fe 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -309,7 +309,7 @@ config USB_EHCI_HCD_PLATFORM config USB_OCTEON_EHCI bool "Octeon on-chip EHCI support (DEPRECATED)" - depends on CAVIUM_OCTEON_SOC || COMPILE_TEST + depends on CAVIUM_OCTEON_SOC select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USB_EHCI_HCD_PLATFORM help -- 2.7.4