virtio_blk: make serial attribute static
authorMichael S. Tsirkin <mst@redhat.com>
Thu, 23 Oct 2014 13:08:44 +0000 (16:08 +0300)
committerMichael S. Tsirkin <mst@redhat.com>
Tue, 9 Dec 2014 10:05:27 +0000 (12:05 +0200)
commit393c525b5bea6989380c4b57508ec901488079f0
tree4762d1f72d7465c68b3df5d4f82d1f911dce812f
parentaf9ca13b4430107bdae8557801b4274ee3c5b378
virtio_blk: make serial attribute static

It's never declared so no need to make it extern.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
drivers/block/virtio_blk.c