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crypto: caam - Remove unnecessary smp_read_barrier_depends() 

Recently lockless_dereference() was added which can be used in place of
hard-coding smp_read_barrier_depends(). The following PATCH makes the change.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Reviewed-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Pranith Kumar 2014-11-13 14:24:07 -05:00 committed by Herbert Xu
parent 47ca5be9eb
commit 4ba2a8b4d8
1 changed files with 0 additions and 3 deletions
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3
drivers/crypto/caam/jr.c
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@ -181,8 +181,6 @@ static void caam_jr_dequeue(unsigned long devarg)
for (i = 0; CIRC_CNT(head, tail + i, JOBR_DEPTH) >= 1; i++) {
sw_idx = (tail + i) & (JOBR_DEPTH - 1);
smp_read_barrier_depends();
if (jrp->outring[hw_idx].desc ==
jrp->entinfo[sw_idx].desc_addr_dma)
break; /* found */
@ -218,7 +216,6 @@ static void caam_jr_dequeue(unsigned long devarg)
if (sw_idx == tail) {
do {
tail = (tail + 1) & (JOBR_DEPTH - 1);
smp_read_barrier_depends();
} while (CIRC_CNT(head, tail, JOBR_DEPTH) >= 1 &&
jrp->entinfo[tail].desc_addr_dma == 0);