1 files changed, 20 insertions, 19 deletions

diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index 5c8cba0efc63..d2f25e8895e5 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -30,6 +30,7 @@
 #include <linux/init.h>
 #include <linux/ptrace.h>
 #include <linux/kallsyms.h>
+#include <linux/extable.h>
 
 #include <asm/setup.h>
 #include <asm/fpu.h>
@@ -40,6 +41,9 @@
 #include <asm/siginfo.h>
 #include <asm/tlbflush.h>
 
+#include "traps.h"
+#include "../mm/fault.h"
+
 static const char *vec_names[] = {
 	[VEC_RESETSP]	= "RESET SP",
 	[VEC_RESETPC]	= "RESET PC",
@@ -123,10 +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)
@@ -364,7 +364,7 @@ disable_wb:
 #if defined(CONFIG_SUN3)
 #include <asm/sun3mmu.h>
 
-extern int mmu_emu_handle_fault (unsigned long, int, int);
+#include "../sun3/sun3.h"
 
 /* sun3 version of bus_error030 */
 
@@ -383,7 +383,7 @@ static inline void bus_error030 (struct frame *fp)
 			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
 	if (ssw & DF)
 		pr_debug("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-			ssw & RW ? "read" : "write",
+			str_read_write(ssw & RW),
 			fp->un.fmtb.daddr,
 			space_names[ssw & DFC], fp->ptregs.pc);
 
@@ -419,7 +419,7 @@ static inline void bus_error030 (struct frame *fp)
 				}
 
 				pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-					ssw & RW ? "read" : "write",
+					str_read_write(ssw & RW),
 					fp->un.fmtb.daddr,
 					space_names[ssw & DFC], fp->ptregs.pc);
 			}
@@ -455,7 +455,7 @@ static inline void bus_error030 (struct frame *fp)
 			pr_debug("*** unexpected busfault type=%#04x\n",
 				 buserr_type);
 			pr_debug("invalid %s access at %#lx from pc %#lx\n",
-				 !(ssw & RW) ? "write" : "read", addr,
+				 str_read_write(ssw & RW), addr,
 				 fp->ptregs.pc);
 			die_if_kernel ("Oops", &fp->ptregs, buserr_type);
 			force_sig (SIGBUS);
@@ -486,10 +486,10 @@ static inline void bus_error030 (struct frame *fp)
 	if (buserr_type & SUN3_BUSERR_INVALID) {
 		if (!mmu_emu_handle_fault(addr, 1, 0))
 			do_page_fault (&fp->ptregs, addr, 0);
-       } else {
+	} else {
 		pr_debug("protection fault on insn access (segv).\n");
 		force_sig (SIGSEGV);
-       }
+	}
 }
 #else
 #if defined(CPU_M68020_OR_M68030)
@@ -514,7 +514,7 @@ static inline void bus_error030 (struct frame *fp)
 			fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
 	if (ssw & DF)
 		pr_debug("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-			ssw & RW ? "read" : "write",
+			str_read_write(ssw & RW),
 			fp->un.fmtb.daddr,
 			space_names[ssw & DFC], fp->ptregs.pc);
 
@@ -545,9 +545,10 @@ static inline void bus_error030 (struct frame *fp)
 			errorcode |= 2;
 
 		if (mmusr & (MMU_I | MMU_WP)) {
-			if (ssw & 4) {
+			/* We might have an exception table for this PC */
+			if (ssw & 4 && !search_exception_tables(fp->ptregs.pc)) {
 				pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-				       ssw & RW ? "read" : "write",
+				       str_read_write(ssw & RW),
 				       fp->un.fmtb.daddr,
 				       space_names[ssw & DFC], fp->ptregs.pc);
 				goto buserr;
@@ -563,7 +564,7 @@ static inline void bus_error030 (struct frame *fp)
 				       mmusr);
 		} else if (mmusr & (MMU_B|MMU_L|MMU_S)) {
 			pr_err("invalid %s access at %#lx from pc %#lx\n",
-			       !(ssw & RW) ? "write" : "read", addr,
+			       str_read_write(ssw & RW), addr,
 			       fp->ptregs.pc);
 			die_if_kernel("Oops",&fp->ptregs,mmusr);
 			force_sig(SIGSEGV);
@@ -574,7 +575,7 @@ static inline void bus_error030 (struct frame *fp)
 #endif
 
 			pr_err("weird %s access at %#lx from pc %#lx (ssw is %#x)\n",
-			       !(ssw & RW) ? "write" : "read", addr,
+			       str_read_write(ssw & RW), addr,
 			       fp->ptregs.pc, ssw);
 			asm volatile ("ptestr #1,%1@,#0\n\t"
 				      "pmove %%psr,%0"
@@ -849,9 +850,9 @@ void show_registers(struct pt_regs *regs)
 	pr_info("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc);
 	pr_info("SR: %04x  SP: %p  a2: %08lx\n", regs->sr, regs, regs->a2);
 	pr_info("d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
-	       regs->d0, regs->d1, regs->d2, regs->d3);
+		regs->d0, regs->d1, regs->d2, regs->d3);
 	pr_info("d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
-	       regs->d4, regs->d5, regs->a0, regs->a1);
+		regs->d4, regs->d5, regs->a0, regs->a1);
 
 	pr_info("Process %s (pid: %d, task=%p)\n",
 		current->comm, task_pid_nr(current), current);
@@ -963,7 +964,7 @@ void show_stack(struct task_struct *task, unsigned long *stack,
  * real 68k parts, but it won't hurt either.
  */
 
-void bad_super_trap (struct frame *fp)
+static void bad_super_trap(struct frame *fp)
 {
 	int vector = (fp->ptregs.vector >> 2) & 0xff;
 
@@ -990,7 +991,7 @@ void bad_super_trap (struct frame *fp)
 				fp->ptregs.pc + 4 : fp->un.fmtb.baddr);
 		if (ssw & DF)
 			pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n",
-				ssw & RW ? "read" : "write",
+				str_read_write(ssw & RW),
 				fp->un.fmtb.daddr, space_names[ssw & DFC],
 				fp->ptregs.pc);
 	}