userns: Convert __dev_set_promiscuity to use kuids in audit logs

Cc: Klaus Heinrich Kiwi <[e-mail]>
Cc: Eric Paris <[e-mail]>
Acked-by: David S. Miller <[e-mail]>
Acked-by: Serge Hallyn <[e-mail]>
Signed-off-by: "Eric W. Biederman" <[e-mail]>

net/core/dev.c

···
 static int __dev_set_promiscuity(struct net_device *dev, int inc)
 {
 	unsigned int old_flags = dev->flags;
-	uid_t uid;
-	gid_t gid;
+	kuid_t uid;
+	kgid_t gid;
 
 	ASSERT_RTNL();
 
···
 				dev->name, (dev->flags & IFF_PROMISC),
 				(old_flags & IFF_PROMISC),
 				audit_get_loginuid(current),
-				uid, gid,
+				from_kuid(&init_user_ns, uid),
+				from_kgid(&init_user_ns, gid),
 				audit_get_sessionid(current));
 		}