staging:iio:kfifo buffer implementation

A very simple use of a kfifo as an alternative for the ring_sw

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
4 files changed