[PATCH] ppc: Fix ARCH=ppc build with xmon

xmon() prototype is inconsistent between ARCH=ppc and ARCH=powerpc,
thus causing ARCH=ppc build breakage.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 6 insertions, 5 deletions

diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 42d980e82bdc..9dbc4d28fa28 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -49,7 +49,7 @@ extern int xmon_sstep(struct pt_regs *regs);
 extern int xmon_iabr_match(struct pt_regs *regs);
 extern int xmon_dabr_match(struct pt_regs *regs);
 
-void (*debugger)(struct pt_regs *regs) = xmon;
+int (*debugger)(struct pt_regs *regs) = xmon;
 int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
 int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
 int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
@@ -57,7 +57,7 @@ int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
 void (*debugger_fault_handler)(struct pt_regs *regs);
 #else
 #ifdef CONFIG_KGDB
-void (*debugger)(struct pt_regs *regs);
+int (*debugger)(struct pt_regs *regs);
 int (*debugger_bpt)(struct pt_regs *regs);
 int (*debugger_sstep)(struct pt_regs *regs);
 int (*debugger_iabr_match)(struct pt_regs *regs);
diff --git a/arch/ppc/xmon/xmon.c b/arch/ppc/xmon/xmon.c
index 66bfaa3211a2..2b483b4f1602 100644
--- a/arch/ppc/xmon/xmon.c
+++ b/arch/ppc/xmon/xmon.c
@@ -220,8 +220,7 @@ static void get_tb(unsigned *p)
         p[1] = lo;
 }
 
-void
-xmon(struct pt_regs *excp)
+int xmon(struct pt_regs *excp)
 {
         struct pt_regs regs;
         int msr, cmd;
@@ -290,6 +289,8 @@ xmon(struct pt_regs *excp)
 #endif /* CONFIG_SMP */
         set_msr(msr);           /* restore interrupt enable */
         get_tb(start_tb[smp_processor_id()]);
+
+        return cmd != 'X';
 }
 
 irqreturn_t
diff --git a/include/asm-ppc/kgdb.h b/include/asm-ppc/kgdb.h
index 1d3c927ce626..b617dac82969 100644
--- a/include/asm-ppc/kgdb.h
+++ b/include/asm-ppc/kgdb.h
@@ -31,7 +31,7 @@ extern void breakpoint(void);
 /* For taking exceptions
  * these are defined in traps.c
  */
-extern void (*debugger)(struct pt_regs *regs);
+extern int (*debugger)(struct pt_regs *regs);
 extern int (*debugger_bpt)(struct pt_regs *regs);
 extern int (*debugger_sstep)(struct pt_regs *regs);
 extern int (*debugger_iabr_match)(struct pt_regs *regs);