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Subject[PATCH 3/4] mips: make loongsoon serial driver explicitly modular
Date
The file looks as if it is non-modular, but it piggy-backs
off CONFIG_SERIAL_8250 which is tristate. If set to "=m"
we will get this after the init/module header cleanup:

arch/mips/loongson/common/serial.c:76:1: error: data definition has no type or storage class [-Werror]
arch/mips/loongson/common/serial.c:76:1: error: type defaults to 'int' in declaration of 'device_initcall' [-Werror=implicit-int]
arch/mips/loongson/common/serial.c:76:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/loongson/common/serial.c:58:19: error: 'serial_init' defined but not used [-Werror=unused-function]
cc1: all warnings being treated as errors
make[3]: *** [arch/mips/loongson/common/serial.o] Error 1

Make it clearly modular, and add a module_exit function,
so that we avoid the above breakage.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
arch/mips/loongson/common/serial.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/mips/loongson/common/serial.c b/arch/mips/loongson/common/serial.c
index c23fa1373729..ffefc1cb2612 100644
--- a/arch/mips/loongson/common/serial.c
+++ b/arch/mips/loongson/common/serial.c
@@ -11,7 +11,7 @@
*/

#include <linux/io.h>
-#include <linux/init.h>
+#include <linux/module.h>
#include <linux/serial_8250.h>

#include <asm/bootinfo.h>
@@ -108,5 +108,10 @@ static int __init serial_init(void)

return platform_device_register(&uart8250_device);
}
+module_init(serial_init);

-device_initcall(serial_init);
+static void __init serial_exit(void)
+{
+ platform_device_unregister(&uart8250_device);
+}
+module_exit(serial_exit);
--
2.2.1


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