[PATCH 5.5 053/189] csky/smp: Fixup boot failed when CONFIG_SMP

[Greg Kroah-Hartman]

From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>

[ Upstream commit c9492737b25ca32679ba3163609d938c9abfd508 ]

If we use a non-ipi-support interrupt controller, it will cause panic here.
We should let cpu up and work with CONFIG_SMP, when we use a non-ipi intc.

Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/csky/kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index b753d382e4cef..0bb0954d55709 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -120,7 +120,7 @@ void __init setup_smp_ipi(void)
 	int rc;
 
 	if (ipi_irq == 0)
-		panic("%s IRQ mapping failed\n", __func__);
+		return;
 
 	rc = request_percpu_irq(ipi_irq, handle_ipi, "IPI Interrupt",
 				&ipi_dummy_dev);
-- 
2.20.1