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Date:   Fri, 15 May 2020 10:15:01 +0800
From:   Tiezhu Yang <>
To:     Thomas Bogendoerfer <>,
        Huacai Chen <>,
        Jiaxun Yang <>
        Xuefeng Li <>
Subject: [PATCH 2/2] MIPS: Fix build errors under CONFIG_HAVE_STD_PC_SERIAL_PORT

When CONFIG_HAVE_STD_PC_SERIAL_PORT is set, include linux/module.h to fix
the following build errors:

  CC      arch/mips/kernel/8250-platform.o
arch/mips/kernel/8250-platform.c:42:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/8250-platform.c:42:1: error: type defaults to ‘int’ in declaration of ‘module_init’ [-Werror=implicit-int]
arch/mips/kernel/8250-platform.c:42:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/8250-platform.c:44:15: error: expected declaration specifiers or ‘...’ before string constant
 MODULE_AUTHOR("Ralf Baechle <>");
arch/mips/kernel/8250-platform.c:45:16: error: expected declaration specifiers or ‘...’ before string constant
arch/mips/kernel/8250-platform.c:46:20: error: expected declaration specifiers or ‘...’ before string constant
 MODULE_DESCRIPTION("Generic 8250 UART probe driver");
arch/mips/kernel/8250-platform.c:37:81: error: ‘uart8250_init’ defined but not used [-Werror=unused-function]
 static int __init uart8250_init(void)
cc1: all warnings being treated as errors
scripts/ recipe for target 'arch/mips/kernel/8250-platform.o' failed
make[2]: *** [arch/mips/kernel/8250-platform.o] Error 1

Fixes: 848484e2c412 ("mips: remove needless include of module.h from core kernel files.")
Signed-off-by: Tiezhu Yang <>
 arch/mips/kernel/8250-platform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/kernel/8250-platform.c b/arch/mips/kernel/8250-platform.c
index 5c6b2ab..cbf3fe2 100644
--- a/arch/mips/kernel/8250-platform.c
+++ b/arch/mips/kernel/8250-platform.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2007 Ralf Baechle (
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/serial_8250.h>

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