K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2018-01-26T23:21:50.617415Z
K 7
svn:log
V 704
Move per-operation data out of the csession structure.

Create a struct cryptop_data which contains state needed for a single
symmetric crypto operation and move that state out of the session. This
closes a race with the CRYPTO_F_DONE flag that can result in use after
free.

While here, remove the 'cse->error' member.  It was just a copy of
'crp->crp_etype' and cryptodev_op() and cryptodev_aead() checked both
'crp->crp_etype' and 'cse->error'.  Similarly, do not check for an
error from mtx_sleep() since it is not used with PCATCH or a timeout
so cannot fail with an error.

PR:		218597
Reviewed by:	kib
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D13928

END