diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 2beec59..da5b07c 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -14,8 +14,6 @@
 unifdef-y += e820.h
 unifdef-y += ist.h
 unifdef-y += mce.h
-unifdef-y += msgbuf_32.h
-unifdef-y += msgbuf_64.h
 unifdef-y += msr_32.h
 unifdef-y += msr_64.h
 unifdef-y += msr.h
diff --git a/include/asm-x86/msgbuf.h b/include/asm-x86/msgbuf.h
index 154f7d6..7e4e948 100644
--- a/include/asm-x86/msgbuf.h
+++ b/include/asm-x86/msgbuf.h
@@ -1,13 +1,39 @@
-#ifdef __KERNEL__
-# ifdef CONFIG_X86_32
-#  include "msgbuf_32.h"
-# else
-#  include "msgbuf_64.h"
-# endif
-#else
-# ifdef __i386__
-#  include "msgbuf_32.h"
-# else
-#  include "msgbuf_64.h"
-# endif
+#ifndef _ASM_X86_MSGBUF_H
+#define _ASM_X86_MSGBUF_H
+
+/*
+ * The msqid64_ds structure for i386 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space on i386 is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * Pad space on x8664 is left for:
+ * - 2 miscellaneous 64-bit values
+ */
+struct msqid64_ds {
+	struct ipc64_perm msg_perm;
+	__kernel_time_t msg_stime;	/* last msgsnd time */
+#ifdef __i386__
+	unsigned long	__unused1;
 #endif
+	__kernel_time_t msg_rtime;	/* last msgrcv time */
+#ifdef __i386__
+	unsigned long	__unused2;
+#endif
+	__kernel_time_t msg_ctime;	/* last change time */
+#ifdef __i386__
+	unsigned long	__unused3;
+#endif
+	unsigned long  msg_cbytes;	/* current number of bytes on queue */
+	unsigned long  msg_qnum;	/* number of messages in queue */
+	unsigned long  msg_qbytes;	/* max number of bytes on queue */
+	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
+	__kernel_pid_t msg_lrpid;	/* last receive pid */
+	unsigned long  __unused4;
+	unsigned long  __unused5;
+};
+
+#endif /* _ASM_X86_MSGBUF_H */
diff --git a/include/asm-x86/msgbuf_32.h b/include/asm-x86/msgbuf_32.h
deleted file mode 100644
index b8d659c..0000000
--- a/include/asm-x86/msgbuf_32.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef _I386_MSGBUF_H
-#define _I386_MSGBUF_H
-
-/* 
- * The msqid64_ds structure for i386 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
-	struct ipc64_perm msg_perm;
-	__kernel_time_t msg_stime;	/* last msgsnd time */
-	unsigned long	__unused1;
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
-	unsigned long	__unused2;
-	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned long	__unused3;
-	unsigned long  msg_cbytes;	/* current number of bytes on queue */
-	unsigned long  msg_qnum;	/* number of messages in queue */
-	unsigned long  msg_qbytes;	/* max number of bytes on queue */
-	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
-	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned long  __unused4;
-	unsigned long  __unused5;
-};
-
-#endif /* _I386_MSGBUF_H */
diff --git a/include/asm-x86/msgbuf_64.h b/include/asm-x86/msgbuf_64.h
deleted file mode 100644
index cd6f95d..0000000
--- a/include/asm-x86/msgbuf_64.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _X8664_MSGBUF_H
-#define _X8664_MSGBUF_H
-
-/* 
- * The msqid64_ds structure for x86-64 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 2 miscellaneous 64-bit values
- */
-
-struct msqid64_ds {
-	struct ipc64_perm msg_perm;
-	__kernel_time_t msg_stime;	/* last msgsnd time */
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
-	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned long  msg_cbytes;	/* current number of bytes on queue */
-	unsigned long  msg_qnum;	/* number of messages in queue */
-	unsigned long  msg_qbytes;	/* max number of bytes on queue */
-	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
-	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned long  __unused4;
-	unsigned long  __unused5;
-};
-
-#endif