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Add comment explaining ACL permissions revocation (#1421)

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Adds a simple comment mentioning the requirement
for the privileged task to revoke permissions before
deleting an object.
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Kody Stribrny 2026-07-23 10:32:25 -07:00 • committed by GitHub
parent 5706e10cb4
commit 4269c69a16
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include/mpu_wrappers.h
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@ -250,6 +250,9 @@
#if ( ( configUSE_MPU_WRAPPERS_V1 == 0 ) && ( configENABLE_ACCESS_CONTROL_LIST == 1 ) ) #if ( ( configUSE_MPU_WRAPPERS_V1 == 0 ) && ( configENABLE_ACCESS_CONTROL_LIST == 1 ) )
#define vGrantAccessToTask( xTask, xTaskToGrantAccess ) vGrantAccessToKernelObject( ( xTask ), ( int32_t ) ( xTaskToGrantAccess ) ) #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 vRevokeAccessToTask( xTask, xTaskToRevokeAccess ) vRevokeAccessToKernelObject( ( xTask ), ( int32_t ) ( xTaskToRevokeAccess ) )
#define vGrantAccessToSemaphore( xTask, xSemaphoreToGrantAccess ) vGrantAccessToKernelObject( ( xTask ), ( int32_t ) ( xSemaphoreToGrantAccess ) ) #define vGrantAccessToSemaphore( xTask, xSemaphoreToGrantAccess ) vGrantAccessToKernelObject( ( xTask ), ( int32_t ) ( xSemaphoreToGrantAccess ) )