xen/netfront: remove unnecessary wmb
authorJacob Wen <jian.w.wen@oracle.com>
Fri, 9 Nov 2018 06:53:59 +0000 (14:53 +0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 9 Nov 2018 23:15:17 +0000 (15:15 -0800)
commit307f39b021995db67b2f39da7af006e2376fb452
tree4207e3ea2ca6cc47012447ab52d1cfa3449ec4aa
parentdb8ba1e8c39a0e4a012949b5b8ac68386bd39b28
xen/netfront: remove unnecessary wmb

RING_PUSH_REQUESTS_AND_CHECK_NOTIFY is already able to make sure backend sees
requests before req_prod is updated.

Signed-off-by: Jacob Wen <jian.w.wen@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/xen-netfront.c