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Subject[PATCH] MIPS: ath25: Avoid undefined early_serial_setup() without SERIAL_8250_CONSOLE
Date
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.

Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
---

arch/mips/ath25/devices.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/mips/ath25/devices.c b/arch/mips/ath25/devices.c
index e1156347da53..301a9028273c 100644
--- a/arch/mips/ath25/devices.c
+++ b/arch/mips/ath25/devices.c
@@ -73,6 +73,7 @@ const char *get_system_type(void)

void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
{
+#ifdef CONFIG_SERIAL_8250_CONSOLE
struct uart_port s;

memset(&s, 0, sizeof(s));
@@ -85,6 +86,7 @@ void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
s.uartclk = uartclk;

early_serial_setup(&s);
+#endif /* CONFIG_SERIAL_8250_CONSOLE */
}

int __init ath25_add_wmac(int nr, u32 base, int irq)
--
2.7.4
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