About kernel function _CPU_Counter_difference overflow issue

Sebastian Huber sebastian.huber at embedded-brains.de
Fri Jun 18 09:43:17 UTC 2021


On 18/06/2021 10:25, wangqiang3 at sugon.com wrote:
>      1. Is it a bug?
>      static inline CPU_Counter_ticks _CPU_Counter_difference(
>          CPU_Counter_ticks second,
>         CPU_Counter_ticks first)
>      {
>           return second - first;
>      }
The CPU_Counter_ticks is an unsigned integer, so there should be no 
issue unless you want to measure intervals geater than the maximum of 
this integer type.

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