m68k: switch to generic extable.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index d4f9ccb..82005d2 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -5,6 +5,7 @@
generic-y += emergency-restart.h
generic-y += errno.h
generic-y += exec.h
+generic-y += extable.h
generic-y += futex.h
generic-y += hw_irq.h
generic-y += ioctl.h
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index f5f790c3..77239e8 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -122,16 +122,6 @@ static inline void start_thread(struct pt_regs * regs, unsigned long pc,
wrusp(usp);
}
-#ifdef CONFIG_MMU
-extern int handle_kernel_fault(struct pt_regs *regs);
-#else
-static inline int handle_kernel_fault(struct pt_regs *regs)
-{
- /* Any fault in kernel is fatal on non-mmu */
- return 0;
-}
-#endif
-
/* Forward declaration, a strange C thing */
struct task_struct;
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 3fadc4a..67b3481 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -4,6 +4,7 @@
#include <asm/uaccess_mm.h>
#endif
+#include <asm/extable.h>
#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
#include <asm-generic/uaccess-unaligned.h>
#else
diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h
index 14054a4..23be968 100644
--- a/arch/m68k/include/asm/uaccess_mm.h
+++ b/arch/m68k/include/asm/uaccess_mm.h
@@ -31,24 +31,6 @@ static inline int access_ok(int type, const void __user *addr,
#define MOVES "move"
#endif
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
- unsigned long insn, fixup;
-};
-
extern int __put_user_bad(void);
extern int __get_user_bad(void);
diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h
index e77ce66..3f7f54d 100644
--- a/arch/m68k/include/asm/uaccess_no.h
+++ b/arch/m68k/include/asm/uaccess_no.h
@@ -23,25 +23,6 @@ static inline int _access_ok(unsigned long addr, unsigned long size)
}
/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
- unsigned long insn, fixup;
-};
-
-
-/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
*/
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 093b7c4..6f945bb 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -88,7 +88,7 @@ static inline int frame_extra_sizes(int f)
return frame_size_change[f];
}
-int handle_kernel_fault(struct pt_regs *regs)
+int fixup_exception(struct pt_regs *regs)
{
const struct exception_table_entry *fixup;
struct pt_regs *tregs;
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index a926d2c..c1cc4e9 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -1016,8 +1016,13 @@ asmlinkage void trap_c(struct frame *fp)
/* traced a trapping instruction on a 68020/30,
* real exception will be executed afterwards.
*/
- } else if (!handle_kernel_fault(&fp->ptregs))
- bad_super_trap(fp);
+ return;
+ }
+#ifdef CONFIG_MMU
+ if (fixup_exception(&fp->ptregs))
+ return;
+#endif
+ bad_super_trap(fp);
return;
}
diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index bd66a0b..2795e4c 100644
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -32,7 +32,7 @@ int send_fault_sig(struct pt_regs *regs)
force_sig_info(siginfo.si_signo,
&siginfo, current);
} else {
- if (handle_kernel_fault(regs))
+ if (fixup_exception(regs))
return -1;
//if (siginfo.si_signo == SIGBUS)