greybus: loopback: define loopback functions symbolically

Add some symbols to indicate what kind of "function" the
loopback thread is supposed to be performing--the type of
traffic it generates over its connection.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Alex Elder 2015-05-11 21:16:38 -05:00 • committed by Greg Kroah-Hartman
commit 48cc8b8bba