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SubjectRe: [PATCH] Input: joystick - work around "adi" module name confict
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On 6/9/20 3:06 AM, Arnd Bergmann wrote:
> Making module name conflicts a fatal error breaks sparc64
> allmodconfig:
>
> Error log:
> error: the following would cause module name conflict:
> drivers/char/adi.ko
> drivers/input/joystick/adi.ko
>
> Renaming one of the modules would solve the problem, but then cause other
> problems because neither of them is automatically loaded and changing
> the name is likely to break any setup that relies on manually loading
> it by name.
>
> As there is probably no sparc64 system with this kind of ancient joystick
> attached, work around it by adding a Kconfig dependency that forbids
> them from both being modules. It is still possible to build the joystick
> driver if the sparc64 adi driver is built-in.
>
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Masahiro Yamada <masahiroy@kernel.org>
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Cc: linux-input@vger.kernel.org
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
> This should get merged through the kbuild tree together
> with the patch that turns the warning into an error, if the
> joystick maintainers are ok with the hack.
> ---
> drivers/input/joystick/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
> index 940b744639c7..6f73f02059b5 100644
> --- a/drivers/input/joystick/Kconfig
> +++ b/drivers/input/joystick/Kconfig
> @@ -45,6 +45,7 @@ config JOYSTICK_A3D
> config JOYSTICK_ADI
> tristate "Logitech ADI digital joysticks and gamepads"
> select GAMEPORT
> + depends on ADI!=m # avoid module name conflict
> help
> Say Y here if you have a Logitech controller using the ADI
> protocol over the PC gameport.
>

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