[PATCH 6/7] score: Always validate ticks in _TOD_Validate()

[Chris Johns]

On 3/9/21 11:33 pm, Sebastian Huber wrote:
> The behaviour with respect to the handling of the ticks member in the *_when()
> directives was inconsistent.  In all *_when() directives the ticks member is
> not used to calculate the watchdog expiration time.  However, the
> rtems_task_wake_when() directive ignores the ticks member of the time of day
> completely, unlike the rtems_timer_fire_when() and
> rtems_timer_server_fire_when() directives which check that the ticks are valid
> and then ignore them.
> 
> This commit changes _TOD_Validate() to unconditionally check the ticks value.
> Ignoring the value would make it more difficult to support the ticks in the
> future.  The watchdog implementation supports a nanoseconds resolution.
> Checking the ticks in rtems_task_wake_when() may case problems for existing
> applications which could now get an error status due to an invalid ticks value.
> 
> Applications should set the ticks value to zero for future compatibility.  This
> recommendation needs to be added to the documentation.

What happens with existing applications that do not touch this value?

Chris