blob: 7af1ed39c0091de232f5b487ac557ba76e3e9b59 [file] [log] [blame]
Wang Lei1a4240f2010-08-04 15:16:33 +01001/*
2 * Copyright (c) 2010 Wang Lei
3 * Author(s): Wang Lei (wang840925@gmail.com). All Rights Reserved.
4 *
5 * Internal DNS Rsolver stuff
6 *
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public License
Jeff Kirsherc057b192013-12-06 09:13:44 -080018 * along with this library; if not, see <http://www.gnu.org/licenses/>.
Wang Lei1a4240f2010-08-04 15:16:33 +010019 */
20
21#include <linux/compiler.h>
22#include <linux/kernel.h>
23#include <linux/sched.h>
24
25/*
26 * dns_key.c
27 */
28extern const struct cred *dns_resolver_cache;
29
30/*
31 * debug tracing
32 */
Eric Dumazet95c96172012-04-15 05:58:06 +000033extern unsigned int dns_resolver_debug;
Wang Lei1a4240f2010-08-04 15:16:33 +010034
35#define kdebug(FMT, ...) \
36do { \
37 if (unlikely(dns_resolver_debug)) \
38 printk(KERN_DEBUG "[%-6.6s] "FMT"\n", \
39 current->comm, ##__VA_ARGS__); \
40} while (0)
41
42#define kenter(FMT, ...) kdebug("==> %s("FMT")", __func__, ##__VA_ARGS__)
43#define kleave(FMT, ...) kdebug("<== %s()"FMT"", __func__, ##__VA_ARGS__)