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Subject[PATCH v2 1/2] MIPS: only register MT SMP ops if MT is supported
Date
Verify that the current CPU actually supports multi-threading before
registering MT SMP ops, instead of unconditionally registering them if
the kernel is compiled with CONFIG_MIPS_MT_SMP.

Suggested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
---
arch/mips/include/asm/smp-ops.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 65618ff1280c..864aea803984 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -101,6 +101,9 @@ static inline int register_vsmp_smp_ops(void)
#ifdef CONFIG_MIPS_MT_SMP
extern const struct plat_smp_ops vsmp_smp_ops;

+ if (!cpu_has_mipsmt)
+ return -ENODEV;
+
register_smp_ops(&vsmp_smp_ops);

return 0;
--
2.33.1
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