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 <[email protected]> --- 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
