1 /*-
2 * Copyright (c) 2023 Bjoern A. Zeeb
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26 #ifndef _LINUXKPI_LINUX_RHASHTABLE_H
27 #define _LINUXKPI_LINUX_RHASHTABLE_H
28
29 #include <linux/kernel.h> /* pr_debug */
30
31 struct rhash_head {
32 };
33
34 struct rhashtable_params {
35 uint16_t head_offset;
36 uint16_t key_len;
37 uint16_t key_offset;
38 uint16_t nelem_hint;
39 bool automatic_shrinking;
40 };
41
42 struct rhashtable {
43 };
44
45 static inline int
rhashtable_init(struct rhashtable * rht,const struct rhashtable_params * params)46 rhashtable_init(struct rhashtable *rht,
47 const struct rhashtable_params *params)
48 {
49
50 pr_debug("%s: TODO\n", __func__);
51 return (-1);
52 }
53
54 static inline void
rhashtable_destroy(struct rhashtable * rht)55 rhashtable_destroy(struct rhashtable *rht)
56 {
57 pr_debug("%s: TODO\n", __func__);
58 }
59
60 static inline void *
rhashtable_lookup_fast(struct rhashtable * rht,const void * key,const struct rhashtable_params params)61 rhashtable_lookup_fast(struct rhashtable *rht, const void *key,
62 const struct rhashtable_params params)
63 {
64
65 pr_debug("%s: TODO\n", __func__);
66 return (NULL);
67 }
68
69 static inline void *
rhashtable_lookup_get_insert_fast(struct rhashtable * rht,struct rhash_head * obj,const struct rhashtable_params params)70 rhashtable_lookup_get_insert_fast(struct rhashtable *rht,
71 struct rhash_head *obj, const struct rhashtable_params params)
72 {
73
74 pr_debug("%s: TODO\n", __func__);
75 return (NULL);
76 }
77
78 static inline int
rhashtable_remove_fast(struct rhashtable * rht,struct rhash_head * obj,const struct rhashtable_params params)79 rhashtable_remove_fast(struct rhashtable *rht,
80 struct rhash_head *obj, const struct rhashtable_params params)
81 {
82
83 pr_debug("%s: TODO\n", __func__);
84 return (-ENOENT);
85 }
86
87 #endif /* _LINUXKPI_LINUX_RHASHTABLE_H */
88