tree ccc3a13b97dfc46d248b40f93cf744a8feba8ae2
parent 04928b79d2399e6e924f5345bbda28b63751dcb0
author Geert Uytterhoeven <geert+renesas@glider.be> 1440180171 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1443976428 +0100

serial: sh-sci: Pass scatterlist to sci_dma_rx_push()

Currently sci_dma_rx_push() has to find the active scatterlist itself,
but in some cases the caller already knows.

Hence let the caller pass the scatterlist, and introduce a helper to
find the active DMA request while we're at it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>