[PATCH] fix compiling warning
Sebastian Huber
sebastian.huber at embedded-brains.de
Mon Jan 16 06:42:55 UTC 2023
On 13.01.23 10:49, Zhu Zhongjie wrote:
> diff --git a/cpukit/include/rtems/score/threaddispatch.h b/cpukit/include/rtems/score/threaddispatch.h
> index 589935823f..ce20378d02 100644
> --- a/cpukit/include/rtems/score/threaddispatch.h
> +++ b/cpukit/include/rtems/score/threaddispatch.h
> @@ -224,15 +224,11 @@ static inline Per_CPU_Control *_Thread_Dispatch_disable( void )
> Per_CPU_Control *cpu_self;
> ISR_lock_Context lock_context;
>
> -#if defined( RTEMS_SMP ) || defined( RTEMS_PROFILING )
> _ISR_lock_ISR_disable( &lock_context );
> -#endif
>
> cpu_self = _Thread_Dispatch_disable_critical( &lock_context );
>
> -#if defined( RTEMS_SMP ) || defined( RTEMS_PROFILING )
> _ISR_lock_ISR_enable( &lock_context );
> -#endif
>
> return cpu_self;
> }
In RTEMS_SMP configurations, you need the interrupt disable/enable to
prevent that the executing thread suddenly moves from one processor to
another while you increment the thread dispatch disable level which is a
processor-specific variable.
In RTEMS_PROFILING configurations, you need the interrupt disable/enable
to get consistent statistics.
In all other configurations, there is no need to disable/enable
interrupts, so this patch would be a performance regression.
The warning needs to be fixed differently.
--
embedded brains GmbH
Herr Sebastian HUBER
Dornierstr. 4
82178 Puchheim
Germany
email: sebastian.huber at embedded-brains.de
phone: +49-89-18 94 741 - 16
fax: +49-89-18 94 741 - 08
Registergericht: Amtsgericht München
Registernummer: HRB 157899
Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler
Unsere Datenschutzerklärung finden Sie hier:
https://embedded-brains.de/datenschutzerklaerung/
More information about the devel
mailing list