Loading...
1/*
2 * linux/fs/befs/endian.h
3 *
4 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
5 *
6 * Partially based on similar funtions in the sysv driver.
7 */
8
9#ifndef LINUX_BEFS_ENDIAN
10#define LINUX_BEFS_ENDIAN
11
12#include <asm/byteorder.h>
13
14static inline u64
15fs64_to_cpu(const struct super_block *sb, fs64 n)
16{
17 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
18 return le64_to_cpu((__force __le64)n);
19 else
20 return be64_to_cpu((__force __be64)n);
21}
22
23static inline fs64
24cpu_to_fs64(const struct super_block *sb, u64 n)
25{
26 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
27 return (__force fs64)cpu_to_le64(n);
28 else
29 return (__force fs64)cpu_to_be64(n);
30}
31
32static inline u32
33fs32_to_cpu(const struct super_block *sb, fs32 n)
34{
35 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
36 return le32_to_cpu((__force __le32)n);
37 else
38 return be32_to_cpu((__force __be32)n);
39}
40
41static inline fs32
42cpu_to_fs32(const struct super_block *sb, u32 n)
43{
44 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
45 return (__force fs32)cpu_to_le32(n);
46 else
47 return (__force fs32)cpu_to_be32(n);
48}
49
50static inline u16
51fs16_to_cpu(const struct super_block *sb, fs16 n)
52{
53 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
54 return le16_to_cpu((__force __le16)n);
55 else
56 return be16_to_cpu((__force __be16)n);
57}
58
59static inline fs16
60cpu_to_fs16(const struct super_block *sb, u16 n)
61{
62 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
63 return (__force fs16)cpu_to_le16(n);
64 else
65 return (__force fs16)cpu_to_be16(n);
66}
67
68/* Composite types below here */
69
70static inline befs_block_run
71fsrun_to_cpu(const struct super_block *sb, befs_disk_block_run n)
72{
73 befs_block_run run;
74
75 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
76 run.allocation_group = le32_to_cpu((__force __le32)n.allocation_group);
77 run.start = le16_to_cpu((__force __le16)n.start);
78 run.len = le16_to_cpu((__force __le16)n.len);
79 } else {
80 run.allocation_group = be32_to_cpu((__force __be32)n.allocation_group);
81 run.start = be16_to_cpu((__force __be16)n.start);
82 run.len = be16_to_cpu((__force __be16)n.len);
83 }
84 return run;
85}
86
87static inline befs_disk_block_run
88cpu_to_fsrun(const struct super_block *sb, befs_block_run n)
89{
90 befs_disk_block_run run;
91
92 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
93 run.allocation_group = cpu_to_le32(n.allocation_group);
94 run.start = cpu_to_le16(n.start);
95 run.len = cpu_to_le16(n.len);
96 } else {
97 run.allocation_group = cpu_to_be32(n.allocation_group);
98 run.start = cpu_to_be16(n.start);
99 run.len = cpu_to_be16(n.len);
100 }
101 return run;
102}
103
104static inline befs_data_stream
105fsds_to_cpu(const struct super_block *sb, const befs_disk_data_stream *n)
106{
107 befs_data_stream data;
108 int i;
109
110 for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; ++i)
111 data.direct[i] = fsrun_to_cpu(sb, n->direct[i]);
112
113 data.max_direct_range = fs64_to_cpu(sb, n->max_direct_range);
114 data.indirect = fsrun_to_cpu(sb, n->indirect);
115 data.max_indirect_range = fs64_to_cpu(sb, n->max_indirect_range);
116 data.double_indirect = fsrun_to_cpu(sb, n->double_indirect);
117 data.max_double_indirect_range = fs64_to_cpu(sb,
118 n->
119 max_double_indirect_range);
120 data.size = fs64_to_cpu(sb, n->size);
121
122 return data;
123}
124
125#endif //LINUX_BEFS_ENDIAN
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * linux/fs/befs/endian.h
4 *
5 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
6 *
7 * Partially based on similar funtions in the sysv driver.
8 */
9
10#ifndef LINUX_BEFS_ENDIAN
11#define LINUX_BEFS_ENDIAN
12
13#include <asm/byteorder.h>
14
15static inline u64
16fs64_to_cpu(const struct super_block *sb, fs64 n)
17{
18 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
19 return le64_to_cpu((__force __le64)n);
20 else
21 return be64_to_cpu((__force __be64)n);
22}
23
24static inline fs64
25cpu_to_fs64(const struct super_block *sb, u64 n)
26{
27 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
28 return (__force fs64)cpu_to_le64(n);
29 else
30 return (__force fs64)cpu_to_be64(n);
31}
32
33static inline u32
34fs32_to_cpu(const struct super_block *sb, fs32 n)
35{
36 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
37 return le32_to_cpu((__force __le32)n);
38 else
39 return be32_to_cpu((__force __be32)n);
40}
41
42static inline fs32
43cpu_to_fs32(const struct super_block *sb, u32 n)
44{
45 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
46 return (__force fs32)cpu_to_le32(n);
47 else
48 return (__force fs32)cpu_to_be32(n);
49}
50
51static inline u16
52fs16_to_cpu(const struct super_block *sb, fs16 n)
53{
54 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
55 return le16_to_cpu((__force __le16)n);
56 else
57 return be16_to_cpu((__force __be16)n);
58}
59
60static inline fs16
61cpu_to_fs16(const struct super_block *sb, u16 n)
62{
63 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
64 return (__force fs16)cpu_to_le16(n);
65 else
66 return (__force fs16)cpu_to_be16(n);
67}
68
69/* Composite types below here */
70
71static inline befs_block_run
72fsrun_to_cpu(const struct super_block *sb, befs_disk_block_run n)
73{
74 befs_block_run run;
75
76 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
77 run.allocation_group = le32_to_cpu((__force __le32)n.allocation_group);
78 run.start = le16_to_cpu((__force __le16)n.start);
79 run.len = le16_to_cpu((__force __le16)n.len);
80 } else {
81 run.allocation_group = be32_to_cpu((__force __be32)n.allocation_group);
82 run.start = be16_to_cpu((__force __be16)n.start);
83 run.len = be16_to_cpu((__force __be16)n.len);
84 }
85 return run;
86}
87
88static inline befs_disk_block_run
89cpu_to_fsrun(const struct super_block *sb, befs_block_run n)
90{
91 befs_disk_block_run run;
92
93 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
94 run.allocation_group = cpu_to_le32(n.allocation_group);
95 run.start = cpu_to_le16(n.start);
96 run.len = cpu_to_le16(n.len);
97 } else {
98 run.allocation_group = cpu_to_be32(n.allocation_group);
99 run.start = cpu_to_be16(n.start);
100 run.len = cpu_to_be16(n.len);
101 }
102 return run;
103}
104
105static inline befs_data_stream
106fsds_to_cpu(const struct super_block *sb, const befs_disk_data_stream *n)
107{
108 befs_data_stream data;
109 int i;
110
111 for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; ++i)
112 data.direct[i] = fsrun_to_cpu(sb, n->direct[i]);
113
114 data.max_direct_range = fs64_to_cpu(sb, n->max_direct_range);
115 data.indirect = fsrun_to_cpu(sb, n->indirect);
116 data.max_indirect_range = fs64_to_cpu(sb, n->max_indirect_range);
117 data.double_indirect = fsrun_to_cpu(sb, n->double_indirect);
118 data.max_double_indirect_range = fs64_to_cpu(sb,
119 n->
120 max_double_indirect_range);
121 data.size = fs64_to_cpu(sb, n->size);
122
123 return data;
124}
125
126#endif //LINUX_BEFS_ENDIAN