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Since the DMA engine is not stopped everytime rx_timer_fn is called, the interrupts have to be redirected back to CPU only when incomplete DMA transaction is handled Signed-off-by: Muhammad Hamza Farooq <mfarooq@visteon.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>