serial: 8250_dma: Export serial8250_rx_dma_flush()
Export serial8250_rx_dma_flush() for use by SOC UART drivers. Signed-off-by: NChuah, Kim Tatt <kim.tatt.chuah@intel.com> Acked-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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