[PATCH AUTOSEL 5.4 54/58] csky/smp: Fixup boot failed when CONFIG_SMP

Sasha Levin
2020-03-03T02:56:17Z

From: Guo Ren <guoren@linux.alibaba.com>

[ 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@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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