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[ Upstream commit466bcdc1fa] We are using DMA_FROM_DEVICE when mapping RX frame buffers, but DMA_BIDIRECTIONAL for unmap. Fix the direction for DMA unmapping operation. Fixes:87eb55e418("staging: fsl-dpaa2/eth: Fix potential endless loop") Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>