tree 9852a7f7c4674b1331c7e2f87a47d5119600a0a9
parent a8ea07c21d40cf17dd9cbe3cbf87d477b26c354f
author Kim Phillips <kim.phillips@freescale.com> 1340412536 -0500
committer Herbert Xu <herbert@gondor.apana.org.au> 1340779327 +0800

crypto: caam - consolidate memory barriers from job ring en/dequeue

Memory barriers are implied by the i/o register write implementation
(at least on Power).  So we can remove the redundant wmb() in
caam_jr_enqueue, and, in dequeue(), hoist the h/w done notification
write up to before we need to increment the head of the ring, and
save an smp_mb.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>