KFIFO_DMA_OUT_FINISH(9)                    FIFO Buffer                    KFIFO_DMA_OUT_FINISH(9)



NAME
       kfifo_dma_out_finish - finish a DMA OUT operation

SYNOPSIS
       kfifo_dma_out_finish(fifo, len);

ARGUMENTS
       fifo
           address of the fifo to be used

       len
           number of bytes transferred

DESCRIPTION
       This macro finish a DMA OUT operation. The out counter will be updated by the len
       parameter. No error checking will be done.

       Note that with only one concurrent reader and one concurrent writer, you don't need extra
       locking to use these macros.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   KFIFO_DMA_OUT_FINISH(9)