If NO_DMA=y: ERROR: "dma_unmap_sg" [drivers/tty/serial/mxs-auart.ko] undefined! ERROR: "dma_map_sg" [drivers/tty/serial/mxs-auart.ko] undefined! Add a dependency on HAS_DMA to fix this. Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- drivers/tty/serial/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 67b6d8d47d776b7b..29040e88bd6898a3 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1411,8 +1411,9 @@ config SERIAL_PCH_UART_CONSOLE warnings and which allows logins in single user mode). config SERIAL_MXS_AUART - depends on ARCH_MXS || COMPILE_TEST tristate "MXS AUART support" + depends on HAS_DMA + depends on ARCH_MXS || COMPILE_TEST select SERIAL_CORE select SERIAL_MCTRL_GPIO if GPIOLIB help -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html