treewide: Move dma_ops from struct dev_archdata into struct device

Some but not all architectures provide set_dma_ops(). Move dma_ops
from struct dev_archdata into struct device such that it becomes
possible on all architectures to configure dma_ops per device.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7..0cb52ae 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
 	spin_lock(&dma_domain_list_lock);
 	list_for_each_entry(domain, &dma_domain_list, node) {
 		if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
-			pdev->dev.archdata.dma_ops = domain->dma_ops;
+			pdev->dev.dma_ops = domain->dma_ops;
 			break;
 		}
 	}