drivers/dma/ioat: Remove now-redundant smp_read_barrier_depends()

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Now that READ_ONCE() implies smp_read_barrier_depends(), the
__cleanup() and ioat_abort_descs() functions no longer need their
smp_read_barrier_depends() calls, which this commit removes.
It is actually not entirely clear why this driver ever included
smp_read_barrier_depends() given that it appears to be x86-only and
given that smp_read_barrier_depends() has no effect whatsoever except
on DEC Alpha.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: <dmaengine@vger.kernel.org>

...

This commit is contained in:

Paul E. McKenney 2017-12-01 17:04:39 -08:00

parent adf90eb490

commit 98c1ec7cef

1 changed files with 0 additions and 2 deletions

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drivers/dma/ioat/dma.c

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