Michael S. Tsirkin 7334e28569 ptr_ring: fix up after recent ptr_ring changes
[ Upstream commit 5790eabc6e7c3ce2d6ca2e3bbf4de467ce2b64b3 ]

Add more stubs to make it build.

Fixes: 81fbfe8a ("ptr_ring: use kmalloc_array()")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-11-10 07:42:50 -08:00
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