m68k: mm: Add and use "fault.h"

When building with W=1:

    arch/m68k/mm/fault.c:22:5: warning: no previous prototype for ‘send_fault_sig’ [-Wmissing-prototypes]
       22 | int send_fault_sig(struct pt_regs *regs)
	  |     ^~~~~~~~~~~~~~
    arch/m68k/mm/fault.c:68:5: warning: no previous prototype for ‘do_page_fault’ [-Wmissing-prototypes]
       68 | int do_page_fault(struct pt_regs *regs, unsigned long address,
	  |     ^~~~~~~~~~~~~

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

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/ef004b8cfe4aac892aa0fb7714c2ed81a02a9b89.1694613528.git.geert@linux-m68k.org

diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 14055d676161d7259d550f02d542b9669c6ba7b7..1af5e60824676bf34083dcba431d0ff5a4d5ab0d 100644 (file)
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -35,8 +35,7 @@
 
 #include <asm/tlb.h>
 
-asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
-                            unsigned long error_code);
+#include "../mm/fault.h"
 
 asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
        unsigned long prot, unsigned long flags,

diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index d408334712f7118b63cd81d19d739db476e6a16f..129c89349e1a40aa4f9549e7b7882bb8d15d64ba 100644 (file)
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -42,6 +42,7 @@
 #include <asm/tlbflush.h>
 
 #include "traps.h"
+#include "../mm/fault.h"
 
 static const char *vec_names[] = {
        [VEC_RESETSP]   = "RESET SP",
@@ -126,10 +127,6 @@ static const char *space_names[] = {
 };
 
 void die_if_kernel(char *,struct pt_regs *,int);
-asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
-                             unsigned long error_code);
-int send_fault_sig(struct pt_regs *regs);
-
 asmlinkage void trap_c(struct frame *fp);
 
 #if defined (CONFIG_M68060)

diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index c290c5c0cfb93a8128d88ce29de3bbe2b54d511f..fa3c5f38d9894c08545f10d9e882f0a7db4e201a 100644 (file)
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -17,6 +17,8 @@
 #include <asm/setup.h>
 #include <asm/traps.h>
 
+#include "fault.h"
+
 extern void die_if_kernel(char *, struct pt_regs *, long);
 
 int send_fault_sig(struct pt_regs *regs)

diff --git a/arch/m68k/mm/fault.h b/arch/m68k/mm/fault.h
new file mode 100644 (file)
index 0000000..dab14ef
--- /dev/null
+++ b/arch/m68k/mm/fault.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+struct pt_regs;
+
+int do_page_fault(struct pt_regs *regs, unsigned long address,
+                 unsigned long error_code);
+int send_fault_sig(struct pt_regs *regs);