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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-03-16 14:59:20 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-03-16 15:00:08 +0100 |
commit | 3a66586c9e8432eee26b0e74c49c91362e22d24d (patch) | |
tree | 5327db87c0411cdd589728c34ac6dea54721280c /cpukit/rtems | |
parent | bsps/shared: Allow setting baud rate for zynq uart (diff) | |
download | rtems-3a66586c9e8432eee26b0e74c49c91362e22d24d.tar.bz2 |
rtems: Allow RTEMS_PRIORITY for MrsP semaphores
In order to improve the compatibility of RTEMS 5.2 with future version
of RTEMS which fixed #4346 allow MrsP semaphores to be created with
RTEMS_PRIORITY.
Close #4347.
Diffstat (limited to 'cpukit/rtems')
-rw-r--r-- | cpukit/rtems/src/semcreate.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cpukit/rtems/src/semcreate.c b/cpukit/rtems/src/semcreate.c index b57b635d85..ea89800685 100644 --- a/cpukit/rtems/src/semcreate.c +++ b/cpukit/rtems/src/semcreate.c @@ -92,9 +92,14 @@ rtems_status_code rtems_semaphore_create( ) { variant = SEMAPHORE_VARIANT_MUTEX_PRIORITY_CEILING; } else if ( - mutex_with_protocol + ( mutex_with_protocol & ~RTEMS_PRIORITY ) == ( RTEMS_BINARY_SEMAPHORE | RTEMS_MULTIPROCESSOR_RESOURCE_SHARING ) ) { + /* + * In RTEMS 5.2 using RTEMS_FIFO and RTEMS_PRIORITY for MrsP semaphores is + * allowed. In RTEMS 6, RTEMS_PRIORITY is required for MrsP semaphores + * analogous to priority ceiling semaphores. + */ #if defined(RTEMS_SMP) variant = SEMAPHORE_VARIANT_MRSP; #else |