From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx> kbuild-test reported an error: config: mips-randconfig-a001-20200321 ... >> drivers/tty/serial/sprd_serial.c:1175: undefined reference to `clk_set_parent' Because some mips Kconfig-s select CONFIG_HAVE_CLK but not CONFIG_COMMON_CLK, so it's probably that clk_set_parent is missed for those configs. To fix this error, this patch adds dependence on ARM || ARM64 for SERIAL_SPRD. Fixes: 7ba87cfec71a ("tty: serial: make SERIAL_SPRD not depend on ARCH_SPRD") Reported-by: kbuild test robot <lkp@xxxxxxxxx> Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx> --- drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index b43dce785a58..417f7e45a3f8 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1444,6 +1444,7 @@ config SERIAL_MEN_Z135 config SERIAL_SPRD tristate "Support for Spreadtrum serial" select SERIAL_CORE + depends on ARM || ARM64 || COMPILE_TEST help This enables the driver for the Spreadtrum's serial. -- 2.20.1