zhangyuan21 7737efd995 SMP: fix repeat entry timer_start
If we are running on a single CPU architecture, then we know interrupts
are disabled and there is no need to explicitly call enter_critical_section().
However, in the SMP case, enter_critical_section() is required prevent
multiple cpu to enter timer_start.

Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
2023-08-21 13:20:56 +08:00
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