linux-kernel - [PATCH 3.4 016/176] MIPS: Loongson: Make platform serial setup always built-in.

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Date:	Thu,  9 Apr 2015 16:44:24 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>,
	linux-mips@...ux-mips.org, Huacai Chen <chenhc@...ote.com>,
	Markos Chandras <Markos.Chandras@...tec.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 016/176] MIPS: Loongson: Make platform serial setup always built-in.

From: Aaro Koskinen <aaro.koskinen@....fi>

3.4.107-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit 26927f76499849e095714452b8a4e09350f6a3b9 upstream.

If SERIAL_8250 is compiled as a module, the platform specific setup
for Loongson will be a module too, and it will not work very well.
At least on Loongson 3 it will trigger a build failure,
since loongson_sysconf is not exported to modules.

Fix by making the platform specific serial code always built-in.

Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
Reported-by: Ralf Baechle <ralf@...ux-mips.org>
Cc: linux-mips@...ux-mips.org
Cc: Huacai Chen <chenhc@...ote.com>
Cc: Markos Chandras <Markos.Chandras@...tec.com>
Patchwork: https://patchwork.linux-mips.org/patch/8533/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 arch/mips/loongson/common/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index e526488..ce415f7 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -10,7 +10,8 @@ obj-$(CONFIG_GENERIC_GPIO) += gpio.o
 # Serial port support
 #
 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_SERIAL_8250) += serial.o
+loongson-serial-$(CONFIG_SERIAL_8250) := serial.o
+obj-y += $(loongson-serial-m) $(loongson-serial-y)
 obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
 obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
 
-- 
1.9.1

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