xen: fix some style issues in p2m.c

The source arch/x86/xen/p2m.c has some coding style issues. Fix them.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

arch/x86/xen/p2m.c

@@ -922,7 +922,7 @@ int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
 			continue;
 
 		if (map_ops[i].flags & GNTMAP_contains_pte) {
-			pte = (pte_t *) (mfn_to_virt(PFN_DOWN(map_ops[i].host_addr)) +
+			pte = (pte_t *)(mfn_to_virt(PFN_DOWN(map_ops[i].host_addr)) +
 				(map_ops[i].host_addr & ~PAGE_MASK));
 			mfn = pte_mfn(*pte);
 		} else {
@@ -1102,8 +1102,7 @@ int m2p_remove_override(struct page *page,
 			 * hypercall actually returned an error.
 			 */
 			if (kmap_op->handle == GNTST_general_error) {
-				printk(KERN_WARNING "m2p_remove_override: "
-						"pfn %lx mfn %lx, failed to modify kernel mappings",
+				pr_warn("m2p_remove_override: pfn %lx mfn %lx, failed to modify kernel mappings",
 					pfn, mfn);
 				put_balloon_scratch_page();
 				return -1;