Re: [linux-next:master 2519/4500] ucsi.c:undefined reference to `fwnode_usb_role_switch_get'

[Jack Pham <jackp@codeaurora.org>]

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On Mon, Jan 18, 2021 at 06:52:23PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   93bf8b946e5f9a0b0c68155597b53fd8ccce2827
> commit: 89795852c9c46b9b0701f7376d30a1c5ab4d146c [2519/4500] usb: typec: ucsi: Add support for USB role switch
> config: nios2-randconfig-m031-20210118 (attached as .config)
> compiler: nios2-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=89795852c9c46b9b0701f7376d30a1c5ab4d146c
>         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout 89795852c9c46b9b0701f7376d30a1c5ab4d146c
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    nios2-linux-ld: drivers/usb/typec/ucsi/ucsi.o: in function `ucsi_register_port':
> >> ucsi.c:(.text+0x15a8): undefined reference to `fwnode_usb_role_switch_get'
>    ucsi.c:(.text+0x15a8): relocation truncated to fit: R_NIOS2_CALL26 against `fwnode_usb_role_switch_get'
> >> nios2-linux-ld: ucsi.c:(.text+0x15e8): undefined reference to `usb_role_switch_set_role'
>    ucsi.c:(.text+0x15e8): relocation truncated to fit: R_NIOS2_CALL26 against `usb_role_switch_set_role'
>    nios2-linux-ld: drivers/usb/typec/ucsi/ucsi.o: in function `ucsi_handle_connector_change':
> >> ucsi.c:(.text+0x1b50): undefined reference to `usb_role_switch_set_role'
>    ucsi.c:(.text+0x1b50): relocation truncated to fit: R_NIOS2_CALL26 against `usb_role_switch_set_role'
>    nios2-linux-ld: ucsi.c:(.text+0x1c28): undefined reference to `usb_role_switch_set_role'
>    ucsi.c:(.text+0x1c28): relocation truncated to fit: R_NIOS2_CALL26 against `usb_role_switch_set_role'
> 
> Kconfig warnings: (for reference only)
>    WARNING: unmet direct dependencies detected for SERIAL_CORE_CONSOLE
>    Depends on TTY && HAS_IOMEM
>    Selected by
>    - EARLY_PRINTK
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

I have no clue about the nios2, so not sure if this is an arch-specific
linker error or not.

Hmm but the .config has the following:

CONFIG_TYPEC_UCSI=y
CONFIG_USB_ROLE_SWITCH=m

So I'm guessing this patch also requires a Kconfig change to disallow
the above combination? If so, should UCSI have a "depends" or a "select"
on USB_ROLE_SWITCH?

Jack
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