[PATCH v1 1/1] serial: 8250_ce4100: Fix CONFIG_SERIAL_8250=n build

From: Andy Shevchenko
Date: Wed Jul 16 2025 - 05:44:46 EST


On i386, when

CONFIG_X86_INTEL_CE=y
# CONFIG_SERIAL_8250 is not set

will try to compile the driver and use the stub simultaneously.
This breaks the build. Fix it by making sure that the driver
compiles only when CONFIG_SERIAL_8250 is also enabled.

Fixes: acc902de05b2 ("serial: 8250: Move CE4100 quirks to a module under 8250 driver")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Closes: https://lore.kernel.org/r/cdf4ee46-7bf8-4379-9245-fed9db72e7e8@xxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/Makefile | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index e61dc3f4ca50..1d6633bbcd70 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -24,7 +24,9 @@ obj-$(CONFIG_SERIAL_8250_ASPEED_VUART) += 8250_aspeed_vuart.o
obj-$(CONFIG_SERIAL_8250_BCM2835AUX) += 8250_bcm2835aux.o
obj-$(CONFIG_SERIAL_8250_BCM7271) += 8250_bcm7271.o
obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
+ifneq ($(CONFIG_SERIAL_8250),)
obj-$(CONFIG_X86_INTEL_CE) += 8250_ce4100.o
+endif
obj-$(CONFIG_SERIAL_8250_DFL) += 8250_dfl.o
obj-$(CONFIG_SERIAL_8250_DW) += 8250_dw.o
obj-$(CONFIG_SERIAL_8250_EM) += 8250_em.o
--
2.47.2