C编译出现警告：return pointer to local variable

一段C代码，编译发现警告信息。

typedef const struct PWM_Interf{

    void (*PWM_GpionInit)(void);
    void (*PWM_TimerInit)(void);
    void (*PWM_RunPattern)(TEST_PATTERN *p_test_pattern);
    
}PWM_Interf;

PWM_Interf *PWM_GetInterf(void)
{
    const PWM_Interf pwm_interface ={
        PWM_GpioInit,
        PWM_TimerInit,
        PWM_RunPattern,
    };
    
    return &pwm_interface;
}

出现警告：
..\HARDWARE\TIMER\timer.c(316): warning:  #1166-D: returning pointer to local variable
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原因如下：

When returning a pointer from a function, do not return a pointer that points to a value that is local to the function or that is a pointer to a function argument. Pointers to local variables become invalid when the function exits. In the above function, the value returned points to a static variable. Returning a pointer to dynamically allocated memory is also valid.