Hi, On Tue, Apr 23, 2013 at 05:54:32PM +0200, Arnd Bergmann wrote: > A lot of platform code calls into the usb phy core at the moment, which > does not work if it is built as a loadable module. This will hopefully > change when those platforms are all converted to DT based probing, > but for now, the easiest solution is to change it from "tristate" > to "bool". > > This solves at least these ARM allmodconfig build errors: > > arch/arm/mach-imx/built-in.o: In function `imx_otg_ulpi_create': > arch/arm/mach-imx/ulpi.c:117: undefined reference to `otg_ulpi_create' > arch/arm/mach-omap2/built-in.o: In function `usbhs_init_phys': > arch/arm/mach-omap2/usb-host.c:652: undefined reference to `usb_bind_phy' > arch/arm/mach-omap2/built-in.o: In function `omap_2430sdp_init': > arch/arm/mach-omap2/board-2430sdp.c:236: undefined reference to `usb_bind_phy' > arch/arm/mach-omap2/built-in.o: In function `omap3_beagle_init': > arch/arm/mach-omap2/board-omap3beagle.c:554: undefined reference to `usb_bind_phy' > arch/arm/mach-omap2/built-in.o: In function `devkit8000_init': > arch/arm/mach-omap2/board-devkit8000.c:596: undefined reference to `usb_bind_phy' > arch/arm/mach-omap2/built-in.o: In function `omap_ldp_init': > arch/arm/mach-omap2/board-ldp.c:379: undefined reference to `usb_bind_phy' > drivers/built-in.o: In function `ab8500_charger_probe': > drivers/power/ab8500_charger.c:3629: undefined reference to `usb_get_phy' > drivers/power/ab8500_charger.c:3706: undefined reference to `usb_put_phy' > drivers/built-in.o: In function `ab8500_charger_remove': > drivers/power/ab8500_charger.c:3411: undefined reference to `usb_put_phy' > > Signed-off-by: Arnd Bergmann > Cc: Felipe Balbi > Cc: Greg Kroah-Hartman > Cc: linux-usb@vger.kernel.org > --- > drivers/usb/phy/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig > index 21153d1..371d0e7 100644 > --- a/drivers/usb/phy/Kconfig > +++ b/drivers/usb/phy/Kconfig > @@ -2,7 +2,7 @@ > # Physical Layer USB driver configuration > # > menuconfig USB_PHY > - tristate "USB Physical Layer drivers" > + bool "USB Physical Layer drivers" looks like this is the only way, indeed. Do you need on the merge window on can this wait until -rc1 ? I just sent a pull request to Greg with urgent fixes for the merge window. Greg, if you want to take this one as a patch, go for it: Acked-by: Felipe Balbi -- balbi