[ros-diffs] [akhaldi] 47204: [ARMDDK] - We don't really need ExiTryToAcquireFastMutex declaration here. [HAL] - Fix export for ExTryToAcquireFastMutex. On x86 builds it should forward to ntoskrnl's ExiTryToAcquireFastMutex, arm has it's own implementation. Patch by Timo.