If NO_DMA=y: drivers/built-in.o: In function `lpuart_dma_rx_free': fsl_lpuart.c:(.text+0x7da28): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `lpuart_dma_tx_free': fsl_lpuart.c:(.text+0x7da60): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `lpuart_dma_rx': fsl_lpuart.c:(.text+0x7dab8): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `lpuart_dma_tx': fsl_lpuart.c:(.text+0x7db7e): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `lpuart_copy_rx_to_tty': fsl_lpuart.c:(.text+0x7dcd4): undefined reference to `dma_sync_single_for_cpu' make[3]: *** [vmlinux] Error 1 Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 5d9b01aa54f4..84b83d50e859 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1479,6 +1479,7 @@ config SERIAL_RP2_NR_UARTS config SERIAL_FSL_LPUART tristate "Freescale lpuart serial port support" + depends on HAS_DMA select SERIAL_CORE help Support for the on-chip lpuart on some Freescale SOCs. -- 1.7.9.5 -- 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
