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csky/smp: Fixup boot failed when CONFIG_SMP
author
Guo Ren
<guoren@linux.alibaba.com>
Tue, 7 Jan 2020 04:21:25 +0000
(12:21 +0800)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Thu, 12 Mar 2020 12:00:16 +0000
(13:00 +0100)
[ 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
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diff --git
a/arch/csky/kernel/smp.c
b/arch/csky/kernel/smp.c
index
b753d38
..
0bb0954
100644
(file)
--- 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);