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authorKim Phillips <kim.phillips@freescale.com>2012-06-23 02:48:56 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2012-06-27 08:42:07 +0200
commit14a8e29cc2012394d3e886b11402eabd49a4d609 (patch)
tree9852a7f7c4674b1331c7e2f87a47d5119600a0a9 /crypto
parentcrypto: caam - only query h/w in job ring dequeue path (diff)
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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>
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