From 0f7e8efab25735217df11c9c6b7d7696f26340ee Mon Sep 17 00:00:00 2001 From: Guo Ren Date: Mon, 28 Dec 2020 15:11:26 +0000 Subject: csky: Fixup do_page_fault parent irq status We must succeed parent's context irq status in page fault handler. Signed-off-by: Guo Ren --- arch/csky/mm/fault.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/csky/mm') diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index 9533bd8d9a6a..cd8c7304c7e9 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -143,6 +143,10 @@ asmlinkage void do_page_fault(struct pt_regs *regs) return; } + /* Enable interrupts if they were enabled in the parent context. */ + if (likely(regs->sr & BIT(6))) + local_irq_enable(); + /* * If we're in an interrupt or have no user * context, we must not take the fault.. -- cgit v1.2.3