[PATCH v2 07/52] m68k: kernel: Add and use "ptrace.h"

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

When building with W=1:

    arch/m68k/kernel/ptrace.c:275:16: warning: no previous prototype for ‘syscall_trace_enter’ [-Wmissing-prototypes]
      275 | asmlinkage int syscall_trace_enter(void)
	  |                ^~~~~~~~~~~~~~~~~~~
    arch/m68k/kernel/ptrace.c:288:17: warning: no previous prototype for ‘syscall_trace_leave’ [-Wmissing-prototypes]
      288 | asmlinkage void syscall_trace_leave(void)
	  |                 ^~~~~~~~~~~~~~~~~~~

Fix this by introducing a new header file "ptrace.h" for holding the
prototypes of functions implemented in arch/m68k/kernel/ptrace.c.

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2:
  - Add Acked-by.
---
 arch/m68k/kernel/ptrace.c | 2 ++
 arch/m68k/kernel/ptrace.h | 6 ++++++
 2 files changed, 8 insertions(+)
 create mode 100644 arch/m68k/kernel/ptrace.h

diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index cd0172d294306d10..c20d590e429703e9 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -26,6 +26,8 @@
 #include <asm/page.h>
 #include <asm/processor.h>
 
+#include "ptrace.h"
+
 /*
  * does not yet catch signals sent when the child dies.
  * in exit.c or in signal.c.
diff --git a/arch/m68k/kernel/ptrace.h b/arch/m68k/kernel/ptrace.h
new file mode 100644
index 0000000000000000..77018037f10f9781
--- /dev/null
+++ b/arch/m68k/kernel/ptrace.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <linux/linkage.h>
+
+asmlinkage int syscall_trace_enter(void);
+asmlinkage void syscall_trace_leave(void);
-- 
2.34.1