Dear Allen, with commit a2f416bf062a ("HID: multitouch: Add quirks for flipped axes"), you add code that is dependent on the CONFIG_I2C_DMI_CORE. However, this config symbol has not been defined anywhere in the kernel repository. Is this a mistake in your code and you intended to refer to another config symbol? Is there another patch to come that adds this config symbol? Or is this a config symbol that only exists in some out-of-tree repository? Something might be odd here, because this code is effectively dead now with being dependent on a non-existing config symbol. Best regards, Lukas