diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 9096910..9b84f37 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -46,11 +46,11 @@
 	}
 #ifdef CONFIG_CIFS_DEBUG2
 	cFYI(1, ("revision %d num_auth %d First subauth 0x%x",
-		psid->revision, psid->num_auth, psid->sub_auth[0]));
+		psid->revision, psid->num_subauth, psid->sub_auth[0]));
 
 	/* BB add length check to make sure that we do not have huge num auths
 	      and therefore go off the end */
-	cFYI(1, ("RID 0x%x", le32_to_cpu(psid->sub_auth[psid->num_auth])));
+	cFYI(1, ("RID 0x%x", le32_to_cpu(psid->sub_auth[psid->num_subauth])));
 #endif
 	return 0;
 }
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index b975ae1..5e7b567 100644
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -33,10 +33,9 @@
 
 struct cifs_sid {
 	__u8 revision; /* revision level */
-	__u8 num_auth;
+	__u8 num_subauth;
 	__u8 authority[6];
-	__u32 sub_auth[4];
-	__u32 rid;
+	__u32 sub_auth[0]; /* sub_auth[num_subauth] */
 } __attribute__((packed));
 
 struct cifs_acl {
@@ -54,10 +53,9 @@
 
 struct cifs_ace {
 	__u8 revision; /* revision level */
-	__u8 num_auth;
+	__u8 num_subauth;
 	__u8 authority[6];
-	__u32 sub_auth[4];
-	__u32 rid;
+	__u32 sub_auth[0];
 } __attribute__((packed));
 
 /* everyone */