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MIPS: RB532: Avoid undefined early_serial_setup() without SERIAL_8250_CONSOLE

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Currently MIPS allnoconfig with CONFIG_MIKROTIK_RB532=y fails to link due to
missing support for early_serial_setup():

  LD      vmlinux
arch/mips/rb532/serial.o: In function `setup_serial_port':
serial.c:(.init.text+0x14): undefined reference to `early_serial_setup'

Rather than adding dependencies to the platform to force inclusion of
SERIAL_8250_CONSOLE together with it's dependencies like TTY, HAS_IOMEM,
etc, just exclude arch/mips/rb532/serial.c from the build when it's
dependency is not selected in the kernel config.

Reported-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Cc: James Hogan <james.hogan@mips.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17701/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Matt Redfearn 2017-11-14 15:44:22 +00:00 committed by Ralf Baechle
parent 9dd79fed1b
commit ff9bed94d0
1 changed files with 3 additions and 1 deletions
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4
arch/mips/rb532/Makefile
View file

@ -2,4 +2,6 @@
# Makefile for the RB532 board specific parts of the kernel
#
obj-y += irq.o time.o setup.o serial.o prom.o gpio.o devices.o
obj-$(CONFIG_SERIAL_8250_CONSOLE) += serial.o
obj-y += irq.o time.o setup.o prom.o gpio.o devices.o