From: David Howells <[email protected]> Date: Sat, 04 Mar 2017 00:01:41 +0000
> The call state may be changed at any time by the data-ready routine in > response to received packets, so if the call state is to be read and acted > upon several times in a function, READ_ONCE() must be used unless the call > state lock is held. > > Signed-off-by: David Howells <[email protected]> Applied.

