Re: [PATCH] MIPS: ath25: Avoid undefined early_serial_setup() without SERIAL_8250_CONSOLE

From: Matt Redfearn
Date: Tue Nov 14 2017 - 10:44:44 EST




On 14/11/17 14:05, Ralf Baechle wrote:
On Tue, Nov 14, 2017 at 01:29:17PM +0000, Matt Redfearn wrote:

Currently MIPS allnoconfig with CONFIG_ATH25=y fails to link due to
missing support for early_serial_setup():

LD vmlinux
arch/mips/ath25/devices.o: In function ath25_serial_setup':
devices.c:(.init.text+0x68): 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 make ath25_serial_setup() a no-op when the dependency is not
selected in the kernel config.

Looks like arch/mips/rb532/serial.c might be suffering from the same
issue?

Hi Ralf!

Indeed it does, and another unmet dependency. Patches incoming.

Thanks,
Matt


Ralf