Following the inclusion of the patch ac3167257b9f ("headers: separate linux/mod_devicetable.h from linux/platform_device.h"), there is a build issue: drivers/mfd/at91-usart.c:51:34: error: array type has incomplete element type 'struct of_device_id' static const struct of_device_id at91_usart_mode_of_match[] = { Before this patch, the definition was reached by its inclusion of linux/mfd/core.h. The build issue is solved by simply adding the mod_devicetable.h in this driver. Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx> Cc: Radu Pirea <radu_nicolae.pirea@xxxxxx> --- drivers/mfd/at91-usart.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/at91-usart.c b/drivers/mfd/at91-usart.c index a4b9929c156f..ad743b8ca6be 100644 --- a/drivers/mfd/at91-usart.c +++ b/drivers/mfd/at91-usart.c @@ -11,6 +11,7 @@ #include <dt-bindings/mfd/at91-usart.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/mfd/core.h> #include <linux/property.h> -- 2.15.1