From: Arnd Bergmann <arnd@xxxxxxxx> When a symbol is selected that has extra dependencies, anything that selects it must have the same dependencies. With the added CONFIG_DRM reference from I2C_HID_CORE, this broke a couple of drivers that now also depend on DRM: WARNING: unmet direct dependencies detected for I2C_HID_CORE Depends on [m]: HID_SUPPORT [=y] && I2C_HID [=y] && (DRM [=m] || !DRM [=m]) Selected by [y]: - I2C_HID_OF [=y] && HID_SUPPORT [=y] && I2C_HID [=y] - I2C_HID_ACPI [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && ACPI [=y] - I2C_HID_OF_GOODIX [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && OF [=y] x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_remove': (.text+0xfc8826): undefined reference to `drm_panel_remove_follower' x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_probe': (.text+0xfc8da0): undefined reference to `drm_is_panel_follower' Add the corresponding DRM||!DRM dependencies on each one that is affected. Fixes: 96a37bfd232ae ("HID: i2c-hid: Support being a panel follower") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/hid/i2c-hid/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/hid/i2c-hid/Kconfig b/drivers/hid/i2c-hid/Kconfig index 2bdb55203104b..ef7c595c9403c 100644 --- a/drivers/hid/i2c-hid/Kconfig +++ b/drivers/hid/i2c-hid/Kconfig @@ -9,6 +9,7 @@ if I2C_HID config I2C_HID_ACPI tristate "HID over I2C transport layer ACPI driver" depends on ACPI + depends on DRM || !DRM select I2C_HID_CORE help Say Y here if you use a keyboard, a touchpad, a touchscreen, or any @@ -25,6 +26,7 @@ config I2C_HID_OF tristate "HID over I2C transport layer Open Firmware driver" # No "depends on OF" because this can also be used for manually # (board-file) instantiated "hid-over-i2c" type i2c-clients. + depends on DRM || !DRM select I2C_HID_CORE help Say Y here if you use a keyboard, a touchpad, a touchscreen, or any @@ -41,6 +43,7 @@ config I2C_HID_OF config I2C_HID_OF_ELAN tristate "Driver for Elan hid-i2c based devices on OF systems" depends on OF + depends on DRM || !DRM select I2C_HID_CORE help Say Y here if you want support for Elan i2c devices that use @@ -56,6 +59,7 @@ config I2C_HID_OF_ELAN config I2C_HID_OF_GOODIX tristate "Driver for Goodix hid-i2c based devices on OF systems" depends on OF + depends on DRM || !DRM select I2C_HID_CORE help Say Y here if you want support for Goodix i2c devices that use -- 2.39.2