powerpc/xmon: Merge start.c into nonstdio.c

The routines in start.c are only ever called from nonstdio.c, so if we
move them in there they can become static which is nice.

I suspect the idea behind the separation was that start.c could be
replaced in order to build xmon in userland. If anyone still cares about
doing that we could handle that with an ifdef or two.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

4 files changed, 15 insertions, 26 deletions

diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
index c168c54e3c40..b49fdbd15808 100644
--- a/arch/powerpc/xmon/Makefile
+++ b/arch/powerpc/xmon/Makefile
@@ -6,7 +6,7 @@ GCOV_PROFILE := n
 
 ccflags-$(CONFIG_PPC64) := -mno-minimal-toc
 
-obj-y                   += xmon.o start.o nonstdio.o
+obj-y                   += xmon.o nonstdio.o
 
 ifdef CONFIG_XMON_DISASSEMBLY
 obj-y                   += ppc-dis.o ppc-opc.o
diff --git a/arch/powerpc/xmon/nonstdio.c b/arch/powerpc/xmon/nonstdio.c
index 2209485e6564..942d0f6b1874 100644
--- a/arch/powerpc/xmon/nonstdio.c
+++ b/arch/powerpc/xmon/nonstdio.c
@@ -7,9 +7,23 @@
  *      2 of the License, or (at your option) any later version.
  */
 #include <linux/string.h>
+#include <asm/udbg.h>
 #include <asm/time.h>
 #include "nonstdio.h"
 
+
+static int xmon_write(const void *ptr, int nb)
+{
+        return udbg_write(ptr, nb);
+}
+
+static int xmon_readchar(void)
+{
+        if (udbg_getc)
+                return udbg_getc();
+        return -1;
+}
+
 int xmon_putchar(int c)
 {
         char ch = c;
diff --git a/arch/powerpc/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index 321284f4281d..18a51ded4ffd 100644
--- a/arch/powerpc/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
@@ -7,5 +7,3 @@ extern int xmon_putchar(int c);
 extern void xmon_puts(const char *);
 extern char *xmon_gets(char *, int);
 extern void xmon_printf(const char *, ...);
-extern int xmon_write(const void *ptr, int nb);
-extern int xmon_readchar(void);
diff --git a/arch/powerpc/xmon/start.c b/arch/powerpc/xmon/start.c
deleted file mode 100644
index 7769cb5e2090..000000000000
--- a/arch/powerpc/xmon/start.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 1996 Paul Mackerras.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-#include <asm/machdep.h>
-#include <asm/udbg.h>
-#include "nonstdio.h"
-
-int xmon_write(const void *ptr, int nb)
-{
-        return udbg_write(ptr, nb);
-}
-
-int xmon_readchar(void)
-{
-        if (udbg_getc)
-                return udbg_getc();
-        return -1;
-}