From: Heiner Kallweit <hkallwe...@gmail.com> Date: Thu, 27 Jun 2019 23:19:09 +0200
> DMA_API_HOWTO.txt includes an example explaining when > dma_sync_single_for_device() is not needed, and that example matches > our use case. The buffer isn't changed by the CPU and direction is > DMA_FROM_DEVICE, so we can remove the call to > dma_sync_single_for_device(). > > Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com> Applied.