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Add comment explaining ACL permissions revocation #1421

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Add comment explaining ACL permissions revocation
kstribrnAmzn Jun 4, 2026
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kstribrnAmzn Jun 4, 2026
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3 changes: 3 additions & 0 deletions include/mpu_wrappers.h
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Expand Up @@ -249,6 +249,9 @@
#if ( ( configUSE_MPU_WRAPPERS_V1 == 0 ) && ( configENABLE_ACCESS_CONTROL_LIST == 1 ) )

#define vGrantAccessToTask( xTask, xTaskToGrantAccess ) vGrantAccessToKernelObject( ( xTask ), ( int32_t ) ( xTaskToGrantAccess ) )

/* A privileged task must revoke access to the object before deletion,
* otherwise index reuse may result in accidental permissions. */
#define vRevokeAccessToTask( xTask, xTaskToRevokeAccess ) vRevokeAccessToKernelObject( ( xTask ), ( int32_t ) ( xTaskToRevokeAccess ) )

#define vGrantAccessToSemaphore( xTask, xSemaphoreToGrantAccess ) vGrantAccessToKernelObject( ( xTask ), ( int32_t ) ( xSemaphoreToGrantAccess ) )
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