From 7963b3f127a7486815bc10639630c95c2792b811 Mon Sep 17 00:00:00 2001 From: Petri Gynther Date: Mon, 19 Oct 2015 11:49:52 -0700 Subject: [PATCH] MIPS: add nmi_enter() + nmi_exit() to nmi_exception_handler() We need to enter NMI context when NMI interrupt fires. Signed-off-by: Petri Gynther Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11323/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/traps.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index fdb392b27e81..efcedd43780f 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1856,12 +1856,14 @@ void __noreturn nmi_exception_handler(struct pt_regs *regs) { char str[100]; + nmi_enter(); raw_notifier_call_chain(&nmi_chain, 0, regs); bust_spinlocks(1); snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n", smp_processor_id(), regs->cp0_epc); regs->cp0_epc = read_c0_errorepc(); die(str, regs); + nmi_exit(); } #define VECTORSPACING 0x100 /* for EI/VI mode */