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@xxxxxxxxxxxx> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> Cc: linux-input@xxxxxxxxxxxxxxx Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- 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. -- 2.26.2