[PATCH] MIPS: KGDB: fix kgdb support for SMP platforms.

[qiaochong]

KGDB_call_nmi_hook is called by other cpu through smp call.
MIPS smp call is processed in ipi irq handler and regs is saved in
 handle_int.
So kgdb_call_nmi_hook get regs by get_irq_regs and regs will be passed
 to kgdb_cpu_enter.

Signed-off-by: qiaochong <qiaochong@xxxxxxxxxxx>
---
 arch/mips/kernel/kgdb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index 6e574c02e4c3b..6c438a0fd2075 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -214,7 +214,7 @@ void kgdb_call_nmi_hook(void *ignored)
 	old_fs = get_fs();
 	set_fs(KERNEL_DS);
 
-	kgdb_nmicallback(raw_smp_processor_id(), NULL);
+	kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
 
 	set_fs(old_fs);
 }
-- 
2.17.0