On Mon, May 13, 2019 at 04:38:33PM +0200, Alexandre Chartre wrote: > diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c > index a4db7f5..7ad5ad1 100644 > --- a/arch/x86/mm/tlb.c > +++ b/arch/x86/mm/tlb.c > @@ -444,6 +444,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, > switch_ldt(real_prev, next); > } > } > +EXPORT_SYMBOL_GPL(switch_mm_irqs_off); > > /* > * Please ignore the name of this function. It should be called NAK