On Tue, Feb 07, 2017 at 02:13:28PM +0100, Arnd Bergmann wrote:
> With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
> added in linux-4.10:
>
> warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
> drivers/input/built-in.o: In function `rmi_f03_attention':
> rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
> rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
> drivers/input/built-in.o: In function `rmi_f03_remove':
> rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
> drivers/input/built-in.o: In function `rmi_f03_probe':
> rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'
>
> An earlier patch tried to fix this, but missed the HID_RMI driver that
> does a 'select' on the F03 backend.
>
> This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
> when RMI4-F03 is, which covers all cases.
>
> Fixes: d7ddad0acc4a ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
> Fixes: c5e8848fc98e ("Input: synaptics-rmi4 - add support for F03")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Applied, thank you.
> ---
> Sorry for dropping the ball on this earlier, I had the patch in my
> randconfig tree but didn't mark it appropriately so I only stumbled
> over it today when it failed to apply.
> ---
> drivers/input/rmi4/Kconfig | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig
> index 78a78b99ec31..fd98a17925da 100644
> --- a/drivers/input/rmi4/Kconfig
> +++ b/drivers/input/rmi4/Kconfig
> @@ -43,13 +43,19 @@ config RMI4_SMB
>
> config RMI4_F03
> bool "RMI4 Function 03 (PS2 Guest)"
> - depends on SERIO=y || RMI4_CORE=SERIO
> help
> Say Y here if you want to add support for RMI4 function 03.
>
> Function 03 provides PS2 guest support for RMI4 devices. This
> includes support for TrackPoints on TouchPads.
>
> +config RMI4_F03_SERIO
> + tristate
> + depends on RMI4_CORE
> + depends on RMI4_F03
> + default RMI4_CORE
> + select SERIO
> +
> config RMI4_2D_SENSOR
> bool
>
> --
> 2.9.0
>
--
Dmitry
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