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Subject[PATCH 1/1] serial: RS485 ioctl structure uses __u32 include linux/types.h
In the commit below a new struct serial_rs485 was introduced for a new

commit c26c56c0f40e200e61d1390629c806f6adaffbcc
Author: Alan Cox <>
Date: Mon Oct 13 10:37:48 2008 +0100

tty: Cris has a nice RS485 ioctl so we should steal it

This structure uses the __u32 types for some of its members, which leads
to the following compile error:

$ cc -I.../include -c X.c
In file included from X.c:2: .../include/linux/serial.h:185:
error: expected specifier-qualifier-list before ‘__u32’

It seems that these types are appropriate for this structure as it is
to be exposed to userspace. These types are available via linux/types.h
so move the include of that outside the __KERNEL__ section.

Signed-off-by: Andy Whitcroft <>
include/linux/serial.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/serial.h b/include/linux/serial.h
index 1ea8d92..9136cc5 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -10,8 +10,9 @@

-#ifdef __KERNEL__
#include <linux/types.h>
+#ifdef __KERNEL__
#include <asm/page.h>

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