kfifo_dma_in_finish (9)

kfifo_dma_in_finish(fifo, len);

fifo

address of the fifo to be used

len

number of bytes to received

This macro finish a DMA IN operation. The in 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.