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@xxxxxxxxxxx> Signed-off-by: Sander Vanheule <sander@xxxxxxxxxxxxx> --- 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
