xen/gntdev: stop using "token" argument

[firefly-linux-kernel-4.4.55.git] / drivers / xen / gntdev.c

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 888d76307d594903e20ce097d6cee270d1e1465b..a2ea5335e152fb9cd4736a27a57d4b7f4e82b402 100644 (file)
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -209,8 +209,8 @@ static int find_grant_ptes(pte_t *pte, pgtable_t token,
        u64 pte_maddr;
 
        BUG_ON(pgnr >= map->count);
-       pte_maddr  = (u64)pfn_to_mfn(page_to_pfn(token)) << PAGE_SHIFT;
-       pte_maddr += (unsigned long)pte & ~PAGE_MASK;
+       pte_maddr = arbitrary_virt_to_machine(pte).maddr;
+
        gnttab_set_map_op(&map->map_ops[pgnr], pte_maddr,
                          GNTMAP_contains_pte | map->flags,
                          map->grants[pgnr].ref,